From 4df954cb4290c9251eb92ac05a1774abbe928cd9 Mon Sep 17 00:00:00 2001
From: wlott <wlott>
Date: Fri, 30 Nov 1990 17:05:10 +0000
Subject: [PATCH] Initial revision

---
 compiler/sparc/alloc.lisp     |  124 ++++
 compiler/sparc/arith.lisp     |  708 ++++++++++++++++++++
 compiler/sparc/array.lisp     |  419 ++++++++++++
 compiler/sparc/c-call.lisp    |  150 +++++
 compiler/sparc/call.lisp      | 1190 +++++++++++++++++++++++++++++++++
 compiler/sparc/cell.lisp      |  336 ++++++++++
 compiler/sparc/char.lisp      |  133 ++++
 compiler/sparc/debug.lisp     |  108 +++
 compiler/sparc/float.lisp     |  529 +++++++++++++++
 compiler/sparc/insts.lisp     |  612 +++++++++++++++++
 compiler/sparc/macros.lisp    |  458 +++++++++++++
 compiler/sparc/memory.lisp    |  160 +++++
 compiler/sparc/move.lisp      |  278 ++++++++
 compiler/sparc/nlx.lisp       |  306 +++++++++
 compiler/sparc/parms.lisp     |  176 +++++
 compiler/sparc/pred.lisp      |   46 ++
 compiler/sparc/print.lisp     |   41 ++
 compiler/sparc/sap.lisp       |  365 ++++++++++
 compiler/sparc/static-fn.lisp |  154 +++++
 compiler/sparc/subprim.lisp   |   60 ++
 compiler/sparc/system.lisp    |  272 ++++++++
 compiler/sparc/type-vops.lisp |  447 +++++++++++++
 compiler/sparc/values.lisp    |   89 +++
 compiler/sparc/vm.lisp        |  334 +++++++++
 24 files changed, 7495 insertions(+)
 create mode 100644 compiler/sparc/alloc.lisp
 create mode 100644 compiler/sparc/arith.lisp
 create mode 100644 compiler/sparc/array.lisp
 create mode 100644 compiler/sparc/c-call.lisp
 create mode 100644 compiler/sparc/call.lisp
 create mode 100644 compiler/sparc/cell.lisp
 create mode 100644 compiler/sparc/char.lisp
 create mode 100644 compiler/sparc/debug.lisp
 create mode 100644 compiler/sparc/float.lisp
 create mode 100644 compiler/sparc/insts.lisp
 create mode 100644 compiler/sparc/macros.lisp
 create mode 100644 compiler/sparc/memory.lisp
 create mode 100644 compiler/sparc/move.lisp
 create mode 100644 compiler/sparc/nlx.lisp
 create mode 100644 compiler/sparc/parms.lisp
 create mode 100644 compiler/sparc/pred.lisp
 create mode 100644 compiler/sparc/print.lisp
 create mode 100644 compiler/sparc/sap.lisp
 create mode 100644 compiler/sparc/static-fn.lisp
 create mode 100644 compiler/sparc/subprim.lisp
 create mode 100644 compiler/sparc/system.lisp
 create mode 100644 compiler/sparc/type-vops.lisp
 create mode 100644 compiler/sparc/values.lisp
 create mode 100644 compiler/sparc/vm.lisp

diff --git a/compiler/sparc/alloc.lisp b/compiler/sparc/alloc.lisp
new file mode 100644
index 000000000..3b205b981
--- /dev/null
+++ b/compiler/sparc/alloc.lisp
@@ -0,0 +1,124 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/alloc.lisp,v 1.1 1990/11/30 17:04:22 wlott Exp $
+;;;
+;;; Allocation VOPs for the SPARC port.
+;;;
+;;; Written by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+
+;;;; LIST and LIST*
+
+(define-vop (list-or-list*)
+  (:args (things :more t))
+  (:temporary (:scs (descriptor-reg) :type list) ptr)
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:temporary (:scs (descriptor-reg) :type list :to (:result 0) :target result)
+	      res)
+  (:temporary (:scs (non-descriptor-reg) :type random) ndescr)
+  (:info num)
+  (:results (result :scs (descriptor-reg)))
+  (:variant-vars star)
+  (:policy :safe)
+  (:generator 0
+    (cond ((zerop num)
+	   (move result null-tn))
+	  ((and star (= num 1))
+	   (move result (tn-ref-tn things)))
+	  (t
+	   (macrolet
+	       ((store-car (tn list &optional (slot cons-car-slot))
+		  `(let ((reg
+			  (sc-case ,tn
+			    ((any-reg descriptor-reg zero null)
+			     ,tn)
+			    (control-stack
+			     (load-stack-tn temp ,tn)
+			     temp))))
+		     (storew reg ,list ,slot list-pointer-type))))
+	     (let ((cons-cells (if star (1- num) num)))
+	       (pseudo-atomic (ndescr)
+		 (inst add res alloc-tn list-pointer-type)
+		 (inst add alloc-tn alloc-tn
+		       (* (pad-data-block cons-size) cons-cells))
+		 (move ptr res)
+		 (dotimes (i (1- cons-cells))
+		   (store-car (tn-ref-tn things) ptr)
+		   (setf things (tn-ref-across things))
+		   (inst add ptr ptr (pad-data-block cons-size))
+		   (storew ptr ptr
+			   (- cons-cdr-slot cons-size)
+			   list-pointer-type))
+		 (store-car (tn-ref-tn things) ptr)
+		 (cond (star
+			(setf things (tn-ref-across things))
+			(store-car (tn-ref-tn things) ptr cons-cdr-slot))
+		       (t
+			(storew null-tn ptr
+				cons-cdr-slot list-pointer-type)))
+		 (assert (null (tn-ref-across things)))
+		 (move result res))))))))
+
+(define-vop (list list-or-list*)
+  (:variant nil))
+
+(define-vop (list* list-or-list*)
+  (:variant t))
+
+
+;;;; Special purpose inline allocators.
+
+(define-vop (allocate-code-object)
+  (:args (boxed-arg :scs (any-reg))
+	 (unboxed-arg :scs (any-reg)))
+  (:results (result :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:temporary (:scs (any-reg) :from (:argument 0)) boxed)
+  (:temporary (:scs (non-descriptor-reg) :from (:argument 1)) unboxed)
+  (:generator 100
+    (inst add boxed boxed-arg (fixnum (1+ code-constants-offset)))
+    (inst and boxed (lognot lowtag-mask))
+    (inst srl unboxed unboxed-arg word-shift)
+    (inst add unboxed lowtag-mask)
+    (inst and unboxed (lognot lowtag-mask))
+    (pseudo-atomic (ndescr)
+      (inst add result alloc-tn other-pointer-type)
+      (inst add alloc-tn boxed)
+      (inst add alloc-tn unboxed)
+      (inst sll ndescr boxed (- type-bits word-shift))
+      (inst or ndescr code-header-type)
+      (storew ndescr result 0 other-pointer-type)
+      (storew unboxed result code-code-size-slot other-pointer-type)
+      (storew null-tn result code-entry-points-slot other-pointer-type)
+      (storew null-tn result code-debug-info-slot other-pointer-type))))
+
+(define-vop (make-symbol)
+  (:args (name :scs (descriptor-reg) :to :eval))
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:results (result :scs (descriptor-reg) :from :argument))
+  (:policy :fast-safe)
+  (:translate make-symbol)
+  (:generator 37
+    (with-fixed-allocation (result temp symbol-header-type symbol-size)
+      (inst li temp unbound-marker-type)
+      (storew temp result symbol-value-slot other-pointer-type)
+      (storew temp result symbol-function-slot other-pointer-type)
+      (storew temp result symbol-setf-function-slot other-pointer-type)
+      (inst li temp (make-fixup "_undefined_tramp" :foreign))
+      (storew temp result symbol-raw-function-addr-slot
+	      other-pointer-type)
+      (storew null-tn result symbol-plist-slot other-pointer-type)
+      (storew name result symbol-name-slot other-pointer-type)
+      (storew null-tn result symbol-package-slot other-pointer-type))))
+
+
diff --git a/compiler/sparc/arith.lisp b/compiler/sparc/arith.lisp
new file mode 100644
index 000000000..0e36a3b5f
--- /dev/null
+++ b/compiler/sparc/arith.lisp
@@ -0,0 +1,708 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/arith.lisp,v 1.1 1990/11/30 17:04:24 wlott Exp $
+;;;
+;;;    This file contains the VM definition arithmetic VOPs for the MIPS.
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Converted by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+
+
+;;;; Unary operations.
+
+(define-vop (fast-safe-arith-op)
+  (:policy :fast-safe)
+  (:effects)
+  (:affected))
+
+
+(define-vop (fixnum-unop fast-safe-arith-op)
+  (:args (x :scs (any-reg)))
+  (:results (res :scs (any-reg)))
+  (:note "inline fixnum arithmetic")
+  (:arg-types tagged-num)
+  (:result-types tagged-num))
+
+(define-vop (signed-unop fast-safe-arith-op)
+  (:args (x :scs (signed-reg)))
+  (:results (res :scs (signed-reg)))
+  (:note "inline (signed-byte 32) arithmetic")
+  (:arg-types signed-num)
+  (:result-types signed-num))
+
+(define-vop (fast-negate/fixnum fixnum-unop)
+  (:translate %negate)
+  (:generator 1
+    (inst neg res x)))
+
+(define-vop (fast-negate/signed signed-unop)
+  (:translate %negate)
+  (:generator 2
+    (inst neg res x)))
+
+(define-vop (fast-lognot/fixnum fixnum-unop)
+  (:translate lognot)
+  (:generator 2
+    (inst xor res x (fixnum -1))))
+
+(define-vop (fast-lognot/signed signed-unop)
+  (:translate lognot)
+  (:generator 1
+    (inst not res x)))
+
+
+
+;;;; Binary fixnum operations.
+
+;;; Assume that any constant operand is the second arg...
+
+(define-vop (fast-fixnum-binop fast-safe-arith-op)
+  (:args (x :target r :scs (any-reg zero))
+	 (y :target r :scs (any-reg zero)))
+  (:arg-types tagged-num tagged-num)
+  (:results (r :scs (any-reg)))
+  (:result-types tagged-num)
+  (:note "inline fixnum arithmetic"))
+
+(define-vop (fast-unsigned-binop fast-safe-arith-op)
+  (:args (x :target r :scs (unsigned-reg zero))
+	 (y :target r :scs (unsigned-reg zero)))
+  (:arg-types unsigned-num unsigned-num)
+  (:results (r :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:note "inline (unsigned-byte 32) arithmetic"))
+
+(define-vop (fast-signed-binop fast-safe-arith-op)
+  (:args (x :target r :scs (signed-reg zero))
+	 (y :target r :scs (signed-reg zero)))
+  (:arg-types signed-num signed-num)
+  (:results (r :scs (signed-reg)))
+  (:result-types signed-num)
+  (:note "inline (signed-byte 32) arithmetic"))
+
+
+(define-vop (fast-fixnum-binop-c fast-safe-arith-op)
+  (:args (x :target r :scs (any-reg zero)))
+  (:info y)
+  (:arg-types tagged-num
+	      (:constant (and (signed-byte 11) (not (integer 0 0)))))
+  (:results (r :scs (any-reg)))
+  (:result-types tagged-num)
+  (:note "inline fixnum arithmetic"))
+
+(define-vop (fast-unsigned-binop-c fast-safe-arith-op)
+  (:args (x :target r :scs (unsigned-reg zero)))
+  (:info y)
+  (:arg-types unsigned-num
+	      (:constant (and (signed-byte 13) (not (integer 0 0)))))
+  (:results (r :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:note "inline (unsigned-byte 32) arithmetic"))
+
+(define-vop (fast-signed-binop-c fast-safe-arith-op)
+  (:args (x :target r :scs (signed-reg zero)))
+  (:info y)
+  (:arg-types signed-num
+	      (:constant (and (signed-byte 13) (not (integer 0 0)))))
+  (:results (r :scs (signed-reg)))
+  (:result-types signed-num)
+  (:note "inline (signed-byte 32) arithmetic"))
+
+
+(eval-when (compile load eval)
+
+(defmacro define-binop (translate cost op)
+  `(progn
+     (define-vop (,(symbolicate "FAST-" translate "/FIXNUM=>FIXNUM")
+		  fast-fixnum-binop)
+       (:translate ,translate)
+       (:generator ,(1+ cost)
+	 (inst ,op r x y)))
+     (define-vop (,(symbolicate 'fast- translate '-c/fixnum=>fixnum)
+		  fast-fixnum-binop-c)
+       (:translate ,translate)
+       (:generator ,cost
+	 (inst ,op r x (fixnum y))))
+     (define-vop (,(symbolicate "FAST-" translate "/SIGNED=>SIGNED")
+		  fast-signed-binop)
+       (:translate ,translate)
+       (:generator ,(+ cost 3)
+	 (inst ,op r x y)))
+     (define-vop (,(symbolicate 'fast- translate '-c/signed=>signed)
+		  fast-signed-binop-c)
+       (:translate ,translate)
+       (:generator ,(+ cost 2)
+	 (inst ,op r x y)))
+     (define-vop (,(symbolicate "FAST-" translate "/UNSIGNED=>UNSIGNED")
+		  fast-unsigned-binop)
+       (:translate ,translate)
+       (:generator ,(+ cost 3)
+	 (inst ,op r x y)))
+     (define-vop (,(symbolicate 'fast- translate '-c/unsigned=>unsigned)
+		  fast-unsigned-binop-c)
+       (:translate ,translate)
+       (:generator ,(+ cost 2)
+	 (inst ,op r x y)))))
+
+); eval-when
+
+(define-binop + 2 add)
+(define-binop - 2 sub)
+(define-binop logand 1 and)
+(define-binop logandc2 1 andn)
+(define-binop logior 1 or)
+(define-binop logorc2 1 orn)
+(define-binop logxor 1 xor)
+(define-binop logeqv 1 xnor)
+
+;;; Special case fixnum + and - that trap on overflow.  Useful when we
+;;; don't know that the output type is a fixnum.
+
+(define-vop (fast-+/fixnum fast-+/fixnum=>fixnum)
+  (:results (r :scs (any-reg descriptor-reg)))
+  (:result-types (:or signed-num unsigned-num))
+  (:note nil)
+  (:generator 1
+    (inst taddcctv r x y)))
+
+(define-vop (fast-+-c/fixnum fast-+-c/fixnum=>fixnum)
+  (:results (r :scs (any-reg descriptor-reg)))
+  (:result-types (:or signed-num unsigned-num))
+  (:note nil)
+  (:generator 1
+    (inst taddcctv r x y)))
+
+(define-vop (fast--/fixnum fast--/fixnum=>fixnum)
+  (:results (r :scs (any-reg descriptor-reg)))
+  (:result-types (:or signed-num unsigned-num))
+  (:note nil)
+  (:generator 1
+    (inst tsubcctv r x y)))
+
+(define-vop (fast---c/fixnum fast---c/fixnum=>fixnum)
+  (:results (r :scs (any-reg descriptor-reg)))
+  (:result-types (:or signed-num unsigned-num))
+  (:note nil)
+  (:generator 1
+    (inst tsubcctv r x y)))
+
+;;; Shifting
+
+(define-vop (fast-ash)
+  (:note "inline ASH")
+  (:args (number :scs (signed-reg unsigned-reg) :to :save)
+	 (amount :scs (signed-reg immediate)))
+  (:arg-types (:or signed-num unsigned-num) signed-num)
+  (:results (result :scs (signed-reg unsigned-reg)))
+  (:result-types (:or signed-num unsigned-num))
+  (:translate ash)
+  (:policy :fast-safe)
+  (:temporary (:sc non-descriptor-reg) ndesc)
+  (:generator 3
+    (sc-case amount
+      (signed-reg
+       (let ((positive (gen-label))
+	     (done (gen-label)))
+	 (inst cmp amount)
+	 (inst b :ge positive)
+	 (inst neg ndesc amount)
+	 (inst cmp ndesc 31)
+	 (inst b :le done)
+	 (sc-case number
+	   (signed-reg (inst sra result number ndesc))
+	   (unsigned-reg (inst srl result number ndesc)))
+	 (inst b done)
+	 (sc-case number
+	   (signed-reg (inst sra result number 31))
+	   (unsigned-reg (inst srl result number 31)))
+
+	 (emit-label positive)
+	 ;; The result-type assures us that this shift will not overflow.
+	 (inst sll result number amount)
+
+	 (emit-label done)))
+
+      (immediate
+       (let ((amount (tn-value amount)))
+	 (if (minusp amount)
+	     (let ((amount (min 31 (- amount))))
+	       (sc-case number
+		 (unsigned-reg
+		  (inst srl result number amount))
+		 (signed-reg
+		  (inst sra result number amount))))
+	     (inst sll result number amount)))))))
+
+
+
+(define-vop (signed-byte-32-len)
+  (:translate integer-length)
+  (:note "inline (signed-byte 32) integer-length")
+  (:policy :fast-safe)
+  (:args (arg :scs (signed-reg) :target shift))
+  (:arg-types signed-num)
+  (:results (res :scs (any-reg)))
+  (:result-types positive-fixnum)
+  (:temporary (:scs (non-descriptor-reg) :from (:argument 0)) shift)
+  (:generator 30
+    (let ((loop (gen-label))
+	  (test (gen-label)))
+      (inst addcc shift zero-tn arg)
+      (inst b :ge test)
+      (move res zero-tn)
+      (inst b test)
+      (inst not shift)
+
+      (emit-label loop)
+      (inst add res (fixnum 1))
+      
+      (emit-label test)
+      (inst cmp shift)
+      (inst b :ne loop)
+      (inst srl shift 1))))
+
+(define-vop (unsigned-byte-32-count)
+  (:translate logcount)
+  (:note "inline (unsigned-byte 32) logcount")
+  (:policy :fast-safe)
+  (:args (arg :scs (unsigned-reg) :target shift))
+  (:arg-types unsigned-num)
+  (:results (res :scs (any-reg)))
+  (:result-types positive-fixnum)
+  (:temporary (:scs (non-descriptor-reg) :from (:argument 0)) shift temp)
+  (:generator 30
+    (let ((loop (gen-label))
+	  (done (gen-label)))
+      (inst addcc shift zero-tn arg)
+      (inst b :eq done)
+      (move res zero-tn)
+
+      (emit-label loop)
+      (inst sub temp shift 1)
+      (inst andcc shift temp)
+      (inst b :ne loop)
+      (inst add res 1)
+
+      (emit-label done))))
+
+
+;;;; Binary conditional VOPs:
+
+(define-vop (fast-conditional)
+  (:conditional)
+  (:info target not-p)
+  (:effects)
+  (:affected)
+  (:policy :fast-safe))
+
+(deftype integer-with-a-bite-out (s bite)
+  (cond ((eq s '*) 'integer)
+	((and (integerp s) (> s 1))
+	 (let ((bound (ash 1 (1- s))))
+	   `(integer ,(- bound) ,(- bound bite 1))))
+	(t
+	 (error "Bad size specified for SIGNED-BYTE type specifier: ~S." s))))
+
+(define-vop (fast-conditional/fixnum fast-conditional)
+  (:args (x :scs (any-reg zero))
+	 (y :scs (any-reg zero)))
+  (:arg-types tagged-num tagged-num)
+  (:note "inline fixnum comparison"))
+
+(define-vop (fast-conditional-c/fixnum fast-conditional/fixnum)
+  (:args (x :scs (any-reg zero)))
+  (:arg-types tagged-num (:constant (signed-byte 11)))
+  (:info target not-p y))
+
+(define-vop (fast-conditional/signed fast-conditional)
+  (:args (x :scs (signed-reg zero))
+	 (y :scs (signed-reg zero)))
+  (:arg-types signed-num signed-num)
+  (:note "inline (signed-byte 32) comparison"))
+
+(define-vop (fast-conditional-c/signed fast-conditional/signed)
+  (:args (x :scs (signed-reg zero)))
+  (:arg-types signed-num (:constant (signed-byte 13)))
+  (:info target not-p y))
+
+(define-vop (fast-conditional/unsigned fast-conditional)
+  (:args (x :scs (unsigned-reg zero))
+	 (y :scs (unsigned-reg zero)))
+  (:arg-types unsigned-num unsigned-num)
+  (:note "inline (unsigned-byte 32) comparison"))
+
+(define-vop (fast-conditional-c/unsigned fast-conditional/unsigned)
+  (:args (x :scs (unsigned-reg zero)))
+  (:arg-types unsigned-num (:constant (unsigned-byte 12)))
+  (:info target not-p y))
+
+
+(defmacro define-conditional-vop (tran cond unsigned not-cond not-unsigned)
+  `(progn
+     ,@(mapcar #'(lambda (suffix signed)
+		   (unless (and (member suffix '(/fixnum -c/fixnum))
+				(eq tran 'eql))
+		     `(define-vop (,(intern (format nil "~:@(FAST-IF-~A~A~)"
+						    tran suffix))
+				   ,(intern
+				     (format nil "~:@(FAST-CONDITIONAL~A~)"
+					     suffix)))
+			(:translate ,tran)
+			(:generator 3
+			  (inst cmp x
+				,(if (eq suffix '-c/fixnum) '(fixnum y) 'y))
+			  (inst b (if not-p
+				      ,(if signed not-cond not-unsigned)
+				      ,(if signed cond unsigned))
+				target)
+			  (inst nop)))))
+	       '(/fixnum -c/fixnum /signed -c/signed /unsigned -c/unsigned)
+	       '(t t t t nil nil))))
+
+(define-conditional-vop < :lt :ltu :ge :geu)
+
+(define-conditional-vop > :gt :gtu :le :leu)
+
+(define-conditional-vop eql :eq :eq :ne :ne)
+
+;;; EQL/FIXNUM is funny because the first arg can be of any type, not just a
+;;; known fixnum.
+
+(define-vop (fast-eql/fixnum fast-conditional)
+  (:args (x :scs (any-reg descriptor-reg zero))
+	 (y :scs (any-reg zero)))
+  (:arg-types * tagged-num)
+  (:note "inline fixnum comparison")
+  (:translate eql)
+  (:generator 3
+    (inst cmp x y)
+    (inst b (if not-p :ne :eq) target)
+    (inst nop)))
+
+(define-vop (fast-eql-c/fixnum fast-conditional/fixnum)
+  (:args (x :scs (any-reg descriptor-reg zero)))
+  (:arg-types * (:constant (signed-byte 11)))
+  (:info target not-p y)
+  (:translate eql)
+  (:generator 2
+    (inst cmp x (fixnum y))
+    (inst b (if not-p :ne :eq) target)
+    (inst nop)))
+
+  
+
+;;;; 32-bit logical operations
+
+(define-vop (merge-bits)
+  (:translate merge-bits)
+  (:args (shift :scs (signed-reg unsigned-reg))
+	 (prev :scs (unsigned-reg))
+	 (next :scs (unsigned-reg)))
+  (:arg-types tagged-num unsigned-num unsigned-num)
+  (:temporary (:scs (unsigned-reg) :to (:result 0)) temp)
+  (:temporary (:scs (unsigned-reg) :to (:result 0) :target result) res)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:policy :fast-safe)
+  (:generator 4
+    (let ((done (gen-label)))
+      (inst cmp shift)
+      (inst b :eq done)
+      (inst srl res next shift)
+      (inst sub temp zero-tn shift)
+      (inst sll temp prev temp)
+      (inst or res temp)
+      (emit-label done)
+      (move result res))))
+
+
+(define-vop (32bit-logical)
+  (:args (x :scs (unsigned-reg zero))
+	 (y :scs (unsigned-reg zero)))
+  (:arg-types unsigned-num unsigned-num)
+  (:results (r :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:policy :fast-safe))
+
+(define-vop (32bit-logical-not 32bit-logical)
+  (:translate 32bit-logical-not)
+  (:args (x :scs (unsigned-reg zero)))
+  (:arg-types unsigned-num)
+  (:generator 1
+    (inst not r x)))
+
+(define-vop (32bit-logical-and 32bit-logical)
+  (:translate 32bit-logical-and)
+  (:generator 1
+    (inst and r x y)))
+
+(define-vop (32bit-logical-or 32bit-logical)
+  (:translate 32bit-logical-or)
+  (:generator 1
+    (inst or r x y)))
+
+(define-vop (32bit-logical-xor 32bit-logical)
+  (:translate 32bit-logical-xor)
+  (:generator 1
+    (inst xor r x y)))
+
+
+
+
+;;;; Bignum stuff.
+
+(define-vop (bignum-length get-header-data)
+  (:translate bignum::%bignum-length)
+  (:policy :fast-safe))
+
+(define-vop (bignum-set-length set-header-data)
+  (:translate bignum::%bignum-set-length)
+  (:policy :fast-safe))
+
+(define-vop (bignum-ref word-index-ref)
+  (:variant vm:bignum-digits-offset vm:other-pointer-type)
+  (:translate bignum::%bignum-ref)
+  (:results (value :scs (unsigned-reg)))
+  (:result-types unsigned-num))
+
+(define-vop (bignum-set word-index-set)
+  (:variant vm:bignum-digits-offset vm:other-pointer-type)
+  (:translate bignum::%bignum-set)
+  (:args (object :scs (descriptor-reg))
+	 (index :scs (any-reg immediate zero))
+	 (value :scs (unsigned-reg)))
+  (:arg-types t positive-fixnum unsigned-num)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types unsigned-num))
+
+(define-vop (digit-0-or-plus)
+  (:translate bignum::%digit-0-or-plusp)
+  (:policy :fast-safe)
+  (:args (digit :scs (unsigned-reg)))
+  (:arg-types unsigned-num)
+  (:results (result :scs (descriptor-reg)))
+  (:generator 3
+    (let ((done (gen-label)))
+      (inst cmp digit)
+      (inst b :lt done)
+      (move result null-tn)
+      (load-symbol result t)
+      (emit-label done))))
+
+(define-vop (add-w/carry)
+  (:translate bignum::%add-with-carry)
+  (:policy :fast-safe)
+  (:args (a :scs (unsigned-reg))
+	 (b :scs (unsigned-reg))
+	 (c :scs (any-reg)))
+  (:arg-types unsigned-num unsigned-num positive-fixnum)
+  (:results (result :scs (unsigned-reg))
+	    (carry :scs (unsigned-reg)))
+  (:result-types unsigned-num positive-fixnum)
+  (:generator 3
+    (inst addcc zero-tn c -1)
+    (inst addxcc result a b)
+    (inst addx carry zero-tn zero-tn)))
+
+(define-vop (sub-w/borrow)
+  (:translate bignum::%subtract-with-borrow)
+  (:policy :fast-safe)
+  (:args (a :scs (unsigned-reg))
+	 (b :scs (unsigned-reg))
+	 (c :scs (any-reg)))
+  (:arg-types unsigned-num unsigned-num positive-fixnum)
+  (:results (result :scs (unsigned-reg))
+	    (borrow :scs (unsigned-reg)))
+  (:result-types unsigned-num positive-fixnum)
+  (:temporary (temp :scs (non-descriptor-reg)))
+  (:generator 4
+    (inst subcc zero-tn c 1)
+    (inst subxcc result a b)
+    (inst addx borrow zero-tn zero-tn)
+    (inst xor borrow 1)))
+
+;;; EMIT-MULTIPLY -- This is used both for bignum stuff and in assembly
+;;; routines.
+;;; 
+(defun emit-multiply (multiplier multiplicand result-high result-low)
+  "Emit code to multiply MULTIPLIER with MULTIPLICAND, putting the result
+  in RESULT-HIGH and RESULT-LOW.  KIND is either :signed or :unsigned.
+  Note: the lifetimes of MULTIPLICAND and RESULT-HIGH overlap."
+  (declare (type tn multiplier result-high result-low)
+	   (type (or tn (signed-byte 13)) multiplicand))
+  (let ((label (gen-label)))
+    (inst wry multiplier)
+    (inst andcc result-high zero-tn)
+    ;; Note: we can't use the Y register until three insts after it's written.
+    (inst nop)
+    (inst nop)
+    (dotimes (i 32)
+      (inst mulscc result-high multiplicand))
+    (inst mulscc result-high zero-tn)
+    (inst cmp multiplicand)
+    (inst b :ge label)
+    (inst nop)
+    (inst add result-high multiplier)
+    (emit-label label)
+    (inst rdy result-low)))
+
+(define-vop (bignum-mult-and-add-3-arg)
+  (:translate bignum::%multiply-and-add)
+  (:policy :fast-safe)
+  (:args (x :scs (unsigned-reg) :to (:eval 1))
+	 (y :scs (unsigned-reg) :to (:eval 1))
+	 (carry-in :scs (unsigned-reg) :to (:eval 2)))
+  (:arg-types unsigned-num unsigned-num unsigned-num)
+  (:results (hi :scs (unsigned-reg) :from (:eval 0))
+	    (lo :scs (unsigned-reg) :from (:eval 1)))
+  (:result-types unsigned-num unsigned-num)
+  (:generator 40
+    (emit-multiply x y hi lo)
+    (inst addcc lo carry-in)
+    (inst addx hi zero-tn)))
+
+(define-vop (bignum-mult-and-add-4-arg)
+  (:translate bignum::%multiply-and-add)
+  (:policy :fast-safe)
+  (:args (x :scs (unsigned-reg) :to (:eval 1))
+	 (y :scs (unsigned-reg) :to (:eval 1))
+	 (prev :scs (unsigned-reg) :to (:eval 2))
+	 (carry-in :scs (unsigned-reg) :to (:eval 2)))
+  (:arg-types unsigned-num unsigned-num unsigned-num unsigned-num)
+  (:results (hi :scs (unsigned-reg) :from (:eval 0))
+	    (lo :scs (unsigned-reg) :from (:eval 1)))
+  (:result-types unsigned-num unsigned-num)
+  (:generator 40
+    (emit-multiply x y hi lo)
+    (inst addcc lo carry-in)
+    (inst addx hi zero-tn)
+    (inst addcc lo prev)
+    (inst addx hi zero-tn)))
+
+(define-vop (bignum-mult)
+  (:translate bignum::%multiply)
+  (:policy :fast-safe)
+  (:args (x :scs (unsigned-reg) :to (:result 1))
+	 (y :scs (unsigned-reg) :to (:result 1)))
+  (:arg-types unsigned-num unsigned-num)
+  (:results (hi :scs (unsigned-reg))
+	    (lo :scs (unsigned-reg)))
+  (:result-types unsigned-num unsigned-num)
+  (:generator 40
+    (emit-multiply x y hi lo)))
+
+(define-vop (bignum-lognot)
+  (:translate bignum::%lognot)
+  (:policy :fast-safe)
+  (:args (x :scs (unsigned-reg)))
+  (:arg-types unsigned-num)
+  (:results (r :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:generator 1
+    (inst not r x)))
+
+(define-vop (fixnum-to-digit)
+  (:translate bignum::%fixnum-to-digit)
+  (:policy :fast-safe)
+  (:args (fixnum :scs (any-reg)))
+  (:arg-types tagged-num)
+  (:results (digit :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:generator 1
+    (inst sra digit fixnum 2)))
+
+(define-vop (bignum-floor)
+  (:translate bignum::%floor)
+  (:policy :fast-safe)
+  (:args (div-high :scs (unsigned-reg) :target rem)
+	 (div-low :scs (unsigned-reg) :target quo)
+	 (divisor :scs (unsigned-reg)))
+  (:arg-types unsigned-num unsigned-num unsigned-num)
+  (:results (quo :scs (unsigned-reg) :from (:argument 1))
+	    (rem :scs (unsigned-reg) :from (:argument 0)))
+  (:result-types unsigned-num unsigned-num)
+  (:generator 300
+    (move rem div-high)
+    (move quo div-low)
+    (dotimes (i 33)
+      (let ((label (gen-label)))
+	(inst cmp rem divisor)
+	(inst b :ltu label)
+	(inst addxcc quo quo)
+	(inst sub rem divisor)
+	(emit-label label)
+	(unless (= i 32)
+	  (inst addx rem rem))))
+    (inst not quo)))
+
+(define-vop (signify-digit)
+  (:translate bignum::%fixnum-digit-with-correct-sign)
+  (:policy :fast-safe)
+  (:args (digit :scs (unsigned-reg) :target res))
+  (:arg-types unsigned-num)
+  (:results (res :scs (any-reg signed-reg)))
+  (:result-types signed-num)
+  (:generator 1
+    (sc-case res
+      (any-reg
+       (inst sll res digit 2))
+      (signed-reg
+       (move res digit)))))
+
+
+(define-vop (digit-ashr)
+  (:translate bignum::%ashr)
+  (:policy :fast-safe)
+  (:args (digit :scs (unsigned-reg))
+	 (count :scs (unsigned-reg)))
+  (:arg-types unsigned-num positive-fixnum)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:generator 1
+    (inst sra result digit count)))
+
+(define-vop (digit-lshr digit-ashr)
+  (:translate bignum::%digit-logical-shift-right)
+  (:generator 1
+    (inst srl result digit count)))
+
+(define-vop (digit-ashl digit-ashr)
+  (:translate bignum::%ashl)
+  (:generator 1
+    (inst sll result digit count)))
+
+
+;;;; Static functions.
+
+(define-static-function two-arg-gcd (x y) :translate gcd)
+(define-static-function two-arg-lcm (x y) :translate lcm)
+
+(define-static-function two-arg-+ (x y) :translate +)
+(define-static-function two-arg-- (x y) :translate -)
+(define-static-function two-arg-* (x y) :translate *)
+(define-static-function two-arg-/ (x y) :translate /)
+
+(define-static-function two-arg-< (x y) :translate <)
+(define-static-function two-arg-<= (x y) :translate <=)
+(define-static-function two-arg-> (x y) :translate >)
+(define-static-function two-arg->= (x y) :translate >=)
+(define-static-function two-arg-= (x y) :translate =)
+(define-static-function two-arg-/= (x y) :translate /=)
+
+(define-static-function %negate (x) :translate %negate)
+
+(define-static-function two-arg-and (x y) :translate logand)
+(define-static-function two-arg-ior (x y) :translate logior)
+(define-static-function two-arg-xor (x y) :translate logxor)
diff --git a/compiler/sparc/array.lisp b/compiler/sparc/array.lisp
new file mode 100644
index 000000000..9783baabc
--- /dev/null
+++ b/compiler/sparc/array.lisp
@@ -0,0 +1,419 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/array.lisp,v 1.1 1990/11/30 17:04:28 wlott Exp $
+;;;
+;;;    This file contains the SPARC definitions for array operations.
+;;;
+;;; Written by William Lott
+;;;
+(in-package "SPARC")
+
+
+;;;; Allocator for the array header.
+
+(define-vop (make-array-header)
+  (:translate make-array-header)
+  (:policy :fast-safe)
+  (:args (type :scs (any-reg))
+	 (rank :scs (any-reg)))
+  (:arg-types tagged-num tagged-num)
+  (:temporary (:scs (descriptor-reg) :to (:result 0) :target result) header)
+  (:temporary (:scs (non-descriptor-reg) :type random) ndescr)
+  (:results (result :scs (descriptor-reg)))
+  (:generator 0
+    (pseudo-atomic (ndescr)
+      (inst add header alloc-tn vm:other-pointer-type)
+      (inst add alloc-tn
+	    (+ (* vm:array-dimensions-offset vm:word-bytes)
+	       vm:lowtag-mask))
+      (inst add alloc-tn rank)
+      (inst and alloc-tn (lognot vm:lowtag-mask))
+      (inst add ndescr rank (fixnum (1- vm:array-dimensions-offset)))
+      (inst sll ndescr ndescr vm:type-bits)
+      (inst or ndescr ndescr type)
+      (inst srl ndescr ndescr 2)
+      (storew ndescr header 0 vm:other-pointer-type))
+    (move result header)))
+
+
+;;;; Additional accessors and setters for the array header.
+
+(defknown lisp::%array-dimension (t fixnum) fixnum
+  (flushable))
+(defknown lisp::%set-array-dimension (t fixnum fixnum) fixnum
+  ())
+
+(define-vop (%array-dimension word-index-ref)
+  (:translate lisp::%array-dimension)
+  (:policy :fast-safe)
+  (:variant vm:array-dimensions-offset vm:other-pointer-type))
+
+(define-vop (%set-array-dimension word-index-set)
+  (:translate lisp::%set-array-dimension)
+  (:policy :fast-safe)
+  (:variant vm:array-dimensions-offset vm:other-pointer-type))
+
+
+
+(defknown lisp::%array-rank (t) fixnum (flushable))
+
+(define-vop (array-rank-vop)
+  (:translate lisp::%array-rank)
+  (:policy :fast-safe)
+  (:args (x :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg) :type random) temp)
+  (:results (res :scs (any-reg descriptor-reg)))
+  (:generator 6
+    (loadw temp x 0 vm:other-pointer-type)
+    (inst sra temp vm:type-bits)
+    (inst sub temp (1- vm:array-dimensions-offset))
+    (inst sll res temp 2)))
+
+
+
+;;;; Bounds checking routine.
+
+
+(define-vop (check-bound)
+  (:translate %check-bound)
+  (:policy :fast-safe)
+  (:args (array :scs (descriptor-reg))
+	 (bound :scs (any-reg descriptor-reg))
+	 (index :scs (any-reg descriptor-reg) :target result))
+  (:results (result :scs (any-reg descriptor-reg)))
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 5
+    (let ((error (generate-error-code vop invalid-array-index-error
+				      array bound index)))
+      (inst cmp index bound)
+      (inst b :gtu error)
+      (inst nop)
+      (move result index))))
+
+
+
+;;;; Accessors/Setters
+
+;;; Variants built on top of word-index-ref, etc.  I.e. those vectors whos
+;;; elements are represented in integer registers and are built out of
+;;; 8, 16, or 32 bit elements.
+
+(defmacro def-data-vector-frobs (type variant element-type &rest scs)
+  `(progn
+     (define-vop (,(intern (concatenate 'simple-string
+					"DATA-VECTOR-REF/"
+					(string type)))
+		  ,(intern (concatenate 'simple-string
+					(string variant)
+					"-REF")))
+       (:note "inline array access")
+       (:variant vm:vector-data-offset vm:other-pointer-type)
+       (:translate data-vector-ref)
+       (:arg-types ,type positive-fixnum)
+       (:results (value :scs ,scs))
+       (:result-types ,element-type))
+     (define-vop (,(intern (concatenate 'simple-string
+					"DATA-VECTOR-SET/"
+					(string type)))
+		  ,(intern (concatenate 'simple-string
+					(string variant)
+					"-SET")))
+       (:note "inline array store")
+       (:variant vm:vector-data-offset vm:other-pointer-type)
+       (:translate data-vector-set)
+       (:arg-types ,type positive-fixnum ,element-type)
+       (:args (object :scs (descriptor-reg))
+	      (index :scs (any-reg zero immediate))
+	      (value :scs ,scs))
+       (:results (result :scs ,scs))
+       (:result-types ,element-type))))
+
+(def-data-vector-frobs simple-string byte-index
+  base-character base-character-reg)
+(def-data-vector-frobs simple-vector word-index
+  * descriptor-reg any-reg)
+
+(def-data-vector-frobs simple-array-unsigned-byte-8 byte-index
+  positive-fixnum unsigned-reg)
+(def-data-vector-frobs simple-array-unsigned-byte-16 halfword-index
+  positive-fixnum unsigned-reg)
+(def-data-vector-frobs simple-array-unsigned-byte-32 word-index
+  unsigned-num unsigned-reg)
+
+
+;;; Integer vectors whos elements are smaller than a byte.  I.e. bit, 2-bit,
+;;; and 4-bit vectors.
+;;; 
+
+(eval-when (compile eval)
+
+(defmacro def-small-data-vector-frobs (type bits)
+  (let* ((elements-per-word (floor vm:word-bits bits))
+	 (bit-shift (1- (integer-length elements-per-word))))
+    `(progn
+       (define-vop (,(symbolicate 'data-vector-ref/ type))
+	 (:note "inline array access")
+	 (:translate data-vector-ref)
+	 (:policy :fast-safe)
+	 (:args (object :scs (descriptor-reg))
+		(index :scs (unsigned-reg)))
+	 (:arg-types ,type positive-fixnum)
+	 (:results (value :scs (any-reg)))
+	 (:result-types positive-fixnum)
+	 (:temporary (:scs (non-descriptor-reg) :to (:result 0)) temp result)
+	 (:generator 20
+	   (inst srl temp index ,bit-shift)
+	   (inst sll temp 2)
+	   (inst add temp (- (* vm:vector-data-offset vm:word-bytes)
+			     vm:other-pointer-type))
+	   (inst ld result object temp)
+	   (inst and temp index ,(1- elements-per-word))
+	   ,@(unless (= bits 1)
+	       `((inst sll temp ,(1- (integer-length bits)))))
+	   (inst srl result temp)
+	   (inst and result ,(1- (ash 1 bits)))
+	   (inst sll value result 2)))
+       (define-vop (,(symbolicate 'data-vector-ref-c/ type))
+	 (:translate data-vector-ref)
+	 (:policy :fast-safe)
+	 (:args (object :scs (descriptor-reg)))
+	 (:arg-types ,type (:constant index))
+	 (:info index)
+	 (:results (result :scs (unsigned-reg)))
+	 (:result-types positive-fixnum)
+	 (:temporary (:scs (non-descriptor-reg)) temp)
+	 (:generator 15
+	   (multiple-value-bind (word extra) (floor index ,elements-per-word)
+	     (let ((offset (- (* (+ word vm:vector-data-offset) vm:word-bytes)
+			      vm:other-pointer-type)))
+	       (cond ((typep offset '(signed-byte 13))
+		      (inst ld result object offset))
+		     (t
+		      (inst li temp offset)
+		      (inst ld result object temp))))
+	     (unless (zerop extra)
+	       (inst srl result (* extra ,bits)))
+	     (unless (= extra ,(1- elements-per-word))
+	       (inst and result ,(1- (ash 1 bits)))))))
+       (define-vop (,(symbolicate 'data-vector-set/ type))
+	 (:note "inline array store")
+	 (:translate data-vector-set)
+	 (:policy :fast-safe)
+	 (:args (object :scs (descriptor-reg))
+		(index :scs (unsigned-reg) :target shift)
+		(value :scs (unsigned-reg zero immediate) :target result))
+	 (:arg-types ,type positive-fixnum positive-fixnum)
+	 (:results (result :scs (unsigned-reg)))
+	 (:result-types positive-fixnum)
+	 (:temporary (:scs (non-descriptor-reg)) temp old offset)
+	 (:temporary (:scs (non-descriptor-reg) :from :eval) shift)
+	 (:generator 25
+	   (inst srl offset index ,bit-shift)
+	   (inst sll offset 2)
+	   (inst add offset (- (* vm:vector-data-offset vm:word-bytes)
+			       vm:other-pointer-type))
+	   (inst ld old object offset)
+	   (inst and shift index ,(1- elements-per-word))
+	   ,@(unless (= bits 1)
+	       `((inst sll shift ,(1- (integer-length bits)))))
+	   (unless (and (sc-is value immediate)
+			(= (tn-value value) ,(1- (ash 1 bits))))
+	     (inst li temp ,(1- (ash 1 bits)))
+	     (inst sll temp shift)
+	     (inst not temp)
+	     (inst and old temp))
+	   (unless (sc-is value zero)
+	     (sc-case value
+	       (immediate
+		(inst li temp (logand (tn-value value) ,(1- (ash 1 bits)))))
+	       (unsigned-reg
+		(inst and temp value ,(1- (ash 1 bits)))))
+	     (inst sll temp shift)
+	     (inst or old temp))
+	   (inst st old object offset)
+	   (sc-case value
+	     (immediate
+	      (inst li result (tn-value value)))
+	     (t
+	      (move result value)))))
+       (define-vop (,(symbolicate 'data-vector-set-c/ type))
+	 (:translate data-vector-set)
+	 (:policy :fast-safe)
+	 (:args (object :scs (descriptor-reg))
+		(value :scs (unsigned-reg zero immediate) :target result))
+	 (:arg-types ,type
+		     (:constant index)
+		     positive-fixnum)
+	 (:info index)
+	 (:results (result :scs (unsigned-reg)))
+	 (:result-types positive-fixnum)
+	 (:temporary (:scs (non-descriptor-reg)) offset-reg temp old)
+	 (:generator 20
+	   (multiple-value-bind (word extra) (floor index ,elements-per-word)
+	     (let ((offset (- (* (+ word vm:vector-data-offset) vm:word-bytes)
+			      vm:other-pointer-type)))
+	       (cond ((typep offset '(signed-byte 13))
+		      (inst ld old object offset))
+		     (t
+		      (inst li offset-reg offset)
+		      (inst ld old object offset-reg)))
+	       (unless (and (sc-is value immediate)
+			    (= (tn-value value) ,(1- (ash 1 bits))))
+		 (cond ((= extra ,(1- elements-per-word))
+			(inst sll old ,bits)
+			(inst srl old ,bits))
+		       (t
+			(inst li temp
+			      (lognot (ash ,(1- (ash 1 bits))
+					   (* extra ,bits))))
+			(inst and old temp))))
+	       (sc-case value
+		 (zero)
+		 (immediate
+		  (let ((value (ash (logand (tn-value value)
+					    ,(1- (ash 1 bits)))
+				    (* extra ,bits))))
+		    (cond ((typep value '(signed-byte 13))
+			   (inst or old value))
+			  (t
+			   (inst li temp value)
+			   (inst or old temp)))))
+		 (unsigned-reg
+		  (inst sll temp value (* extra ,bits))
+		  (inst or old temp)))
+	       (if (typep offset '(signed-byte 13))
+		   (inst st old object offset)
+		   (inst st old object offset-reg)))
+	     (sc-case value
+	       (immediate
+		(inst li result (tn-value value)))
+	       (t
+		(move result value)))))))))
+
+); eval-when (compile eval)
+
+(def-small-data-vector-frobs simple-bit-vector 1)
+(def-small-data-vector-frobs simple-array-unsigned-byte-2 2)
+(def-small-data-vector-frobs simple-array-unsigned-byte-4 4)
+
+
+;;; And the float variants.
+;;; 
+
+(define-vop (data-vector-ref/simple-array-single-float)
+  (:note "inline array access")
+  (:translate data-vector-ref)
+  (:policy :fast-safe)
+  (:args (object :scs (descriptor-reg))
+	 (index :scs (any-reg)))
+  (:arg-types simple-array-single-float positive-fixnum)
+  (:results (value :scs (single-reg)))
+  (:temporary (:scs (non-descriptor-reg)) offset)
+  (:result-types single-float)
+  (:generator 5
+    (inst add offset index (- (* vm:vector-data-offset vm:word-bytes)
+			      vm:other-pointer-type))
+    (inst ldf value object offset)))
+
+
+(define-vop (data-vector-set/simple-array-single-float)
+  (:note "inline array store")
+  (:translate data-vector-set)
+  (:policy :fast-safe)
+  (:args (object :scs (descriptor-reg))
+	 (index :scs (any-reg))
+	 (value :scs (single-reg) :target result))
+  (:arg-types simple-array-single-float positive-fixnum single-float)
+  (:results (result :scs (single-reg)))
+  (:result-types single-float)
+  (:temporary (:scs (non-descriptor-reg)) offset)
+  (:generator 5
+    (inst add offset index
+	  (- (* vm:vector-data-offset vm:word-bytes)
+	     vm:other-pointer-type))
+    (inst stf value object offset)
+    (unless (location= result value)
+      (inst fmovs result value))))
+
+(define-vop (data-vector-ref/simple-array-double-float)
+  (:note "inline array access")
+  (:translate data-vector-ref)
+  (:policy :fast-safe)
+  (:args (object :scs (descriptor-reg))
+	 (index :scs (any-reg)))
+  (:arg-types simple-array-double-float positive-fixnum)
+  (:results (value :scs (double-reg)))
+  (:result-types double-float)
+  (:temporary (:scs (non-descriptor-reg)) offset)
+  (:generator 7
+    (inst sll offset index 1)
+    (inst add offset (- (* vm:vector-data-offset vm:word-bytes)
+			vm:other-pointer-type))
+    (inst lddf value object offset)))
+
+(define-vop (data-vector-set/simple-array-double-float)
+  (:note "inline array store")
+  (:translate data-vector-set)
+  (:policy :fast-safe)
+  (:args (object :scs (descriptor-reg))
+	 (index :scs (any-reg))
+	 (value :scs (double-reg) :target result))
+  (:arg-types simple-array-double-float positive-fixnum double-float)
+  (:results (result :scs (double-reg)))
+  (:result-types double-float)
+  (:temporary (:scs (non-descriptor-reg)) offset)
+  (:generator 20
+    (inst sll offset index 1)
+    (inst add offset (- (* vm:vector-data-offset vm:word-bytes)
+			vm:other-pointer-type))
+    (inst stdf value object offset)
+    (unless (location= result value)
+      (inst fmovs result value)
+      (inst fmovs-odd result value))))
+
+;;; These vops are useful for accessing the bits of a vector irrespective of
+;;; what type of vector it is.
+;;; 
+
+(define-vop (raw-bits word-index-ref)
+  (:note "raw-bits VOP")
+  (:translate %raw-bits)
+  (:results (value :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:variant 0 vm:other-pointer-type))
+
+(define-vop (set-raw-bits word-index-set)
+  (:note "setf raw-bits VOP")
+  (:translate %set-raw-bits)
+  (:args (object :scs (descriptor-reg))
+	 (index :scs (any-reg zero immediate))
+	 (value :scs (unsigned-reg)))
+  (:arg-types * positive-fixnum unsigned-num)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:variant 0 vm:other-pointer-type))
+
+
+
+;;;; Misc. Array VOPs.
+
+
+#+nil
+(define-vop (vector-word-length)
+  (:args (vec :scs (descriptor-reg)))
+  (:results (res :scs (any-reg descriptor-reg)))
+  (:generator 6
+    (loadw res vec clc::g-vector-header-words)
+    (inst niuo res res clc::g-vector-words-mask-16)))
+
+(define-vop (get-vector-subtype get-header-data))
+(define-vop (set-vector-subtype set-header-data))
+
diff --git a/compiler/sparc/c-call.lisp b/compiler/sparc/c-call.lisp
new file mode 100644
index 000000000..3d793ef9a
--- /dev/null
+++ b/compiler/sparc/c-call.lisp
@@ -0,0 +1,150 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the CMU Common Lisp project at
+;;; Carnegie Mellon University, and has been placed in the public
+;;; domain.  If you want to use this code or any part of CMU Common
+;;; Lisp, please contact Scott Fahlman (Scott.Fahlman@CS.CMU.EDU)
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/c-call.lisp,v 1.1 1990/11/30 17:04:30 wlott Exp $
+;;;
+;;; This file contains the VOPs and other necessary machine specific support
+;;; routines for call-out to C.
+;;;
+;;; Written by William Lott.
+;;;
+(in-package "SPARC")
+
+(defun my-make-wired-tn (prim-type-name sc-name offset)
+  (make-wired-tn (primitive-type-or-lose prim-type-name *backend*)
+		 (sc-number-or-lose sc-name *backend*)
+		 offset))
+
+(def-vm-support-routine make-call-out-nsp-tn ()
+  (my-make-wired-tn 'positive-fixnum 'any-reg nsp-offset))
+
+(def-vm-support-routine make-call-out-argument-tns (arg-types)
+  (let ((register-args 0)
+	(stack-frame-size 0))
+    (collect ((tns))
+      (dolist (type arg-types)
+	(let ((name (if (consp type) (car type) type)))
+	  (flet ((int-arg (prim-type sc)
+		   (cond ((< register-args 6)
+			  (tns (my-make-wired-tn prim-type sc
+						 (+ register-args nl0-offset)))
+			  (incf register-args))
+			 (t
+			  (tns (my-make-wired-tn prim-type sc
+						 (+ stack-frame-size 16 1 6)))
+			  (incf stack-frame-size)))))
+	    (ecase name
+	      ((unsigned-byte port)
+	       (int-arg 'unsigned-byte-32 'unsigned-reg))
+	      (signed-byte
+	       (int-arg 'signed-byte-32 'signed-reg))
+	      (system-area-pointer
+	       (int-arg 'system-area-pointer 'sap-reg))
+	      (double-float
+	       (error "A double-float made it through the deftransform?"))
+	      (single-float
+	       (error "Can't deal with floats yet."))))))
+      (values (tns)
+	      (logandc2 (1+ stack-frame-size) 1)))))
+
+(def-vm-support-routine make-call-out-result-tn (type)
+  (let ((name (if (consp type) (car type) type)))
+    (ecase name
+      ((unsigned-byte port)
+       (my-make-wired-tn 'unsigned-byte-32 'unsigned-reg nl0-offset))
+      (signed-byte
+       (my-make-wired-tn 'signed-byte-32 'signed-reg nl0-offset))
+      (system-area-pointer
+       (my-make-wired-tn 'system-area-pointer 'sap-reg nl0-offset))
+      (double-float
+       (my-make-wired-tn 'double-float 'double-reg 0))
+      (single-float
+       (error "Can't return single-floats yet.")))))
+
+
+(deftransform ext::call-foreign-function
+	      ((name return-type arg-types &rest args)
+	       (string t list &rest t))
+  (assert (c::constant-continuation-p name))
+  (assert (c::constant-continuation-p return-type))
+  (assert (c::constant-continuation-p arg-types))
+  (let ((name (c::continuation-value name))
+	(return-type (c::continuation-value return-type))
+	(arg-types (c::continuation-value arg-types)))
+    (assert (= (length arg-types) (length args)))
+    (if (member 'double-float arg-types)
+	(let ((new-args nil)
+	      (lambda-vars nil)
+	      (new-types nil))
+	  (dolist (type arg-types)
+	    (let ((arg (gensym)))
+	      (push arg lambda-vars)
+	      (case type
+		(double-float
+		 (push `(double-float-high-bits ,arg) new-args)
+		 (push '(signed-byte 32) new-types)
+		 (push `(double-float-low-bits ,arg) new-args)
+		 (push '(unsigned-byte 32) new-types))
+		(t
+		 (push arg new-args)
+		 (push type new-types)))))
+	  `(lambda (name return-type arg-types ,@(nreverse lambda-vars))
+	     (declare (ignore name return-type arg-types))
+	     (ext::call-foreign-function ,name ',return-type
+					 ',(nreverse new-types)
+					 ,@(nreverse new-args))))
+	(c::give-up))))
+
+
+(define-vop (foreign-symbol-address)
+  (:info foreign-symbol)
+  (:results (res :scs (sap-reg)))
+  (:generator 2
+    (inst li res (make-fixup (concatenate 'simple-string "_" foreign-symbol)
+			     :foreign))))
+
+(define-vop (call-out)
+  (:args (args :more t))
+  (:results (results :more t))
+  (:ignore args results)
+  (:save-p t)
+  (:info function)
+  (:temporary (:sc any-reg :offset cfunc-offset :to (:result 0)) cfunc)
+  (:temporary (:sc interior-reg :offset lip-offset) lip)
+  (:temporary (:scs (any-reg) :to (:result 0)) temp)
+  (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
+  (:vop-var vop)
+  (:generator 0
+    (let ((cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(store-stack-tn nfp-save cur-nfp))
+      (inst li cfunc
+	    (make-fixup (concatenate 'simple-string "_" function) :foreign))
+      (inst li temp (make-fixup "_call_into_c" :foreign))
+      (inst jal lip temp)
+      (inst nop)
+      (when cur-nfp
+	(load-stack-tn cur-nfp nfp-save)))))
+
+
+(define-vop (alloc-number-stack-space)
+  (:info amount)
+  (:results (result :scs (sap-reg any-reg)))
+  (:generator 0
+    (unless (zerop amount)
+      (inst add nsp-tn nsp-tn (- (logandc2 (+ amount 7) 7))))
+    (unless (location= nsp-tn result)
+      (inst add result nsp-tn number-stack-displacement))))
+
+(define-vop (dealloc-number-stack-space)
+  (:info amount)
+  (:policy :fast-safe)
+  (:generator 0
+    (unless (zerop amount)
+      (inst add nsp-tn nsp-tn (logandc2 (+ amount 7) 7)))))
diff --git a/compiler/sparc/call.lisp b/compiler/sparc/call.lisp
new file mode 100644
index 000000000..9c1867907
--- /dev/null
+++ b/compiler/sparc/call.lisp
@@ -0,0 +1,1190 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/call.lisp,v 1.1 1990/11/30 17:04:32 wlott Exp $
+;;;
+;;; This file contains the VM definition of function call for the SPARC.
+;;;
+;;; Written by William Lott.
+;;;
+(in-package "SPARC")
+
+
+;;;; Interfaces to IR2 conversion:
+
+;;; Standard-Argument-Location  --  Interface
+;;;
+;;;    Return a wired TN describing the N'th full call argument passing
+;;; location.
+;;;
+(def-vm-support-routine standard-argument-location (n)
+  (declare (type unsigned-byte n))
+  (if (< n register-arg-count)
+      (make-wired-tn *any-primitive-type* register-arg-scn
+		     (elt register-arg-offsets n))
+      (make-wired-tn *any-primitive-type* control-stack-arg-scn n)))
+
+
+;;; Make-Return-PC-Passing-Location  --  Interface
+;;;
+;;;    Make a passing location TN for a local call return PC.  If standard is
+;;; true, then use the standard (full call) location, otherwise use any legal
+;;; location.  Even in the non-standard case, this may be restricted by a
+;;; desire to use a subroutine call instruction.
+;;;
+(def-vm-support-routine make-return-pc-passing-location (standard)
+  (if standard
+      (make-wired-tn *any-primitive-type* register-arg-scn lra-offset)
+      (make-restricted-tn *any-primitive-type* register-arg-scn)))
+
+;;; Make-Old-FP-Passing-Location  --  Interface
+;;;
+;;;    Similar to Make-Return-PC-Passing-Location, but makes a location to pass
+;;; Old-FP in.  This is (obviously) wired in the standard convention, but is
+;;; totally unrestricted in non-standard conventions, since we can always fetch
+;;; it off of the stack using the arg pointer.
+;;;
+(def-vm-support-routine make-old-fp-passing-location (standard)
+  (if standard
+      (make-wired-tn *fixnum-primitive-type* immediate-arg-scn ocfp-offset)
+      (make-normal-tn *fixnum-primitive-type*)))
+
+;;; Make-Old-FP-Save-Location, Make-Return-PC-Save-Location  --  Interface
+;;;
+;;;    Make the TNs used to hold Old-FP and Return-PC within the current
+;;; function.  We treat these specially so that the debugger can find them at a
+;;; known location.
+;;;
+(def-vm-support-routine make-old-fp-save-location (env)
+  (specify-save-tn
+   (environment-debug-live-tn (make-normal-tn *fixnum-primitive-type*) env)
+   (make-wired-tn *fixnum-primitive-type*
+		  control-stack-arg-scn
+		  ocfp-save-offset)))
+;;;
+(def-vm-support-routine make-return-pc-save-location (env)
+  (specify-save-tn
+   (environment-debug-live-tn (make-normal-tn *any-primitive-type*) env)
+   (make-wired-tn *any-primitive-type*
+		  control-stack-arg-scn
+		  lra-save-offset)))
+
+;;; Make-Argument-Count-Location  --  Interface
+;;;
+;;;    Make a TN for the standard argument count passing location.  We only
+;;; need to make the standard location, since a count is never passed when we
+;;; are using non-standard conventions.
+;;;
+(def-vm-support-routine make-argument-count-location ()
+  (make-wired-tn *fixnum-primitive-type* immediate-arg-scn nargs-offset))
+
+
+;;; MAKE-NFP-TN  --  Interface
+;;;
+;;;    Make a TN to hold the number-stack frame pointer.  This is allocated
+;;; once per component, and is component-live.
+;;;
+(def-vm-support-routine make-nfp-tn ()
+  (component-live-tn
+   (make-wired-tn *fixnum-primitive-type* immediate-arg-scn nfp-offset)))
+
+;;; MAKE-STACK-POINTER-TN ()
+;;; 
+(def-vm-support-routine make-stack-pointer-tn ()
+  (make-normal-tn *fixnum-primitive-type*))
+
+;;; MAKE-NUMBER-STACK-POINTER-TN ()
+;;; 
+(def-vm-support-routine make-number-stack-pointer-tn ()
+  (make-normal-tn *fixnum-primitive-type*))
+
+;;; Make-Unknown-Values-Locations  --  Interface
+;;;
+;;;    Return a list of TNs that can be used to represent an unknown-values
+;;; continuation within a function.
+;;;
+(def-vm-support-routine make-unknown-values-locations ()
+  (list (make-stack-pointer-tn)
+	(make-normal-tn *fixnum-primitive-type*)))
+
+
+;;; Select-Component-Format  --  Interface
+;;;
+;;;    This function is called by the Entry-Analyze phase, allowing
+;;; VM-dependent initialization of the IR2-Component structure.  We push
+;;; placeholder entries in the Constants to leave room for additional
+;;; noise in the code object header.
+;;;
+(def-vm-support-routine select-component-format (component)
+  (declare (type component component))
+  (dotimes (i code-constants-offset)
+    (vector-push-extend nil
+			(ir2-component-constants (component-info component))))
+  (undefined-value))
+
+
+;;;; Frame hackery:
+
+;;; BYTES-NEEDED-FOR-NON-DESCRIPTOR-STACK-FRAME -- internal
+;;;
+;;; Return the number of bytes needed for the current non-descriptor stack
+;;; frame.  Non-descriptor stack frames must be multiples of 8 bytes on
+;;; the PMAX.
+;;; 
+(defun bytes-needed-for-non-descriptor-stack-frame ()
+  (* (logandc2 (1+ (sb-allocated-size 'non-descriptor-stack)) 1)
+     vm:word-bytes))
+
+;;; NUMBER-STACK-DISPLACEMENT
+;;;
+;;; The number of bytes reserved above the number stack pointer.
+;;; 
+(defconstant number-stack-displacement
+  (* (+ 16 ; 16 words to save ins and locals in.
+	1  ; extra word required by C call convention.
+	6  ; space where anyone we call can save his args.
+	1) ; and one more to round it out.
+     vm:word-bytes))
+
+;;; Used for setting up the Old-FP in local call.
+;;;
+(define-vop (current-fp)
+  (:results (val :scs (any-reg)))
+  (:generator 1
+    (move val cfp-tn)))
+
+;;; Used for computing the caller's NFP for use in known-values return.  Only
+;;; works assuming there is no variable size stuff on the nstack.
+;;;
+(define-vop (compute-old-nfp)
+  (:results (val :scs (any-reg)))
+  (:vop-var vop)
+  (:generator 1
+    (let ((nfp (current-nfp-tn vop)))
+      (when nfp
+	(inst add val nfp (bytes-needed-for-non-descriptor-stack-frame))))))
+
+
+(define-vop (xep-allocate-frame)
+  (:info start-lab)
+  (:vop-var vop)
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:generator 1
+    ;; Make sure the function is aligned, and drop a label pointing to this
+    ;; function header.
+    (align vm:lowtag-bits)
+    (emit-label start-lab)
+    ;; Allocate function header.
+    (inst function-header-word)
+    (dotimes (i (1- vm:function-header-code-offset))
+      (inst word 0))
+    ;; The start of the actual code.
+    ;; Fix CODE, cause the function object was passed in.
+    (inst compute-code-from-fn code-tn code-tn start-lab temp)
+    ;; Build our stack frames.
+    (inst add csp-tn cfp-tn
+	  (* vm:word-bytes (sb-allocated-size 'control-stack)))
+    (let ((nfp-tn (current-nfp-tn vop)))
+      (when nfp-tn
+	(inst sub nsp-tn (bytes-needed-for-non-descriptor-stack-frame))
+	(inst add nfp-tn nsp-tn number-stack-displacement)))))
+
+(define-vop (allocate-frame)
+  (:results (res :scs (any-reg))
+	    (nfp :scs (any-reg)))
+  (:info callee)
+  (:generator 2
+    (move res csp-tn)
+    (inst add csp-tn csp-tn
+	  (* vm:word-bytes (sb-allocated-size 'control-stack)))
+    (when (ir2-environment-number-stack-p callee)
+      (inst sub nsp-tn (bytes-needed-for-non-descriptor-stack-frame))
+      (inst add nfp nsp-tn number-stack-displacement))))
+
+;;; Allocate a partial frame for passing stack arguments in a full call.  Nargs
+;;; is the number of arguments passed.  If no stack arguments are passed, then
+;;; we don't have to do anything.
+;;;
+(define-vop (allocate-full-call-frame)
+  (:info nargs)
+  (:results (res :scs (any-reg)))
+  (:generator 2
+    (when (> nargs register-arg-count)
+      (move res csp-tn)
+      (inst add csp-tn csp-tn (* nargs vm:word-bytes)))))
+
+
+
+
+;;; Default-Unknown-Values  --  Internal
+;;;
+;;;    Emit code needed at the return-point from an unknown-values call for a
+;;; fixed number of values.  Values is the head of the TN-Ref list for the
+;;; locations that the values are to be received into.  Nvals is the number of
+;;; values that are to be received (should equal the length of Values).
+;;;
+;;;    Move-Temp is a Descriptor-Reg TN used as a temporary.
+;;;
+;;;    This code exploits the fact that in the unknown-values convention, a
+;;; single value return returns at the return PC + 8, whereas a return of other
+;;; than one value returns directly at the return PC.
+;;;
+;;;    If 0 or 1 values are expected, then we just emit an instruction to reset
+;;; the SP (which will only be executed when other than 1 value is returned.)
+;;;
+;;; In the general case, we have to do three things:
+;;;  -- Default unsupplied register values.  This need only be done when a
+;;;     single value is returned, since register values are defaulted by the
+;;;     called in the non-single case.
+;;;  -- Default unsupplied stack values.  This needs to be done whenever there
+;;;     are stack values.
+;;;  -- Reset SP.  This must be done whenever other than 1 value is returned,
+;;;     regardless of the number of values desired.
+;;;
+;;; The general-case code looks like this:
+#|
+	b regs-defaulted		; Skip if MVs
+	nop
+
+	move a1 null-tn			; Default register values
+	...
+	loadi nargs 1			; Force defaulting of stack values
+	move old-fp csp			; Set up args for SP resetting
+
+regs-defaulted
+	subcc temp nargs register-arg-count
+
+	b :lt default-value-7	; jump to default code
+	loadw move-temp ocfp-tn 6	; Move value to correct location.
+        subcc temp 1
+	store-stack-tn val4-tn move-temp
+
+	b :lt default-value-8
+	loadw move-temp ocfp-tn 7
+        subcc temp 1
+	store-stack-tn val5-tn move-temp
+
+	...
+
+defaulting-done
+	move csp ocfp			; Reset SP.
+<end of code>
+
+<elsewhere>
+default-value-7
+	store-stack-tn val4-tn null-tn	; Nil out 7'th value. (first on stack)
+
+default-value-8
+	store-stack-tn val5-tn null-tn	; Nil out 8'th value.
+
+	...
+
+	br defaulting-done
+        nop
+|#
+;;;
+(defun default-unknown-values (values nvals move-temp temp lra-label)
+  (declare (type (or tn-ref null) values)
+	   (type unsigned-byte nvals) (type tn move-temp temp))
+  (if (<= nvals 1)
+      (progn
+	(move csp-tn ocfp-tn)
+	(inst nop)
+	(inst compute-code-from-lra code-tn code-tn lra-label temp))
+      (let ((regs-defaulted (gen-label))
+	    (defaulting-done (gen-label)))
+	;; Branch off to the MV case.
+	(inst b regs-defaulted)
+	(inst nop)
+	
+	;; Do the single value calse.
+	(do ((i 1 (1+ i))
+	     (val (tn-ref-across values) (tn-ref-across val)))
+	    ((= i (min nvals register-arg-count)))
+	  (move (tn-ref-tn val) null-tn))
+	(when (> nvals register-arg-count)
+	  (inst li nargs-tn (fixnum 1))
+	  (move ocfp-tn csp-tn))
+	
+	(emit-label regs-defaulted)
+	(inst compute-code-from-lra code-tn code-tn lra-label temp)
+	
+	(when (> nvals register-arg-count)
+	  (inst subcc temp nargs-tn (fixnum register-arg-count))
+	  (collect ((defaults))
+	    (do ((i register-arg-count (1+ i))
+		 (val (do ((i 0 (1+ i))
+			   (val values (tn-ref-across val)))
+			  ((= i register-arg-count) val))
+		      (tn-ref-across val)))
+		((null val))
+	      
+	      (let ((default-lab (gen-label))
+		    (tn (tn-ref-tn val)))
+		(defaults (cons default-lab tn))
+		
+		(inst b :lt default-lab)
+		(inst ld move-temp ocfp-tn (* i vm:word-bytes))
+		(inst subcc temp (fixnum 1))
+		(store-stack-tn tn move-temp)))
+	    
+	    (emit-label defaulting-done)
+	    (move csp-tn ocfp-tn)
+	    
+	    (let ((defaults (defaults)))
+	      (when defaults
+		(assemble (*elsewhere*)
+		  (do ((remaining defaults (cdr remaining)))
+		      ((null remaining))
+		    (let ((def (car remaining)))
+		      (emit-label (car def))
+		      (when (null (cdr remaining))
+			(inst b defaulting-done))
+		      (store-stack-tn (cdr def) null-tn))))))))))
+  (undefined-value))
+
+
+;;;; Unknown values receiving:
+
+;;; Receive-Unknown-Values  --  Internal
+;;;
+;;;    Emit code needed at the return point for an unknown-values call for an
+;;; arbitrary number of values.
+;;;
+;;;    We do the single and non-single cases with no shared code: there doesn't
+;;; seem to be any potential overlap, and receiving a single value is more
+;;; important efficiency-wise.
+;;;
+;;;    When there is a single value, we just push it on the stack, returning
+;;; the old SP and 1.
+;;;
+;;;    When there is a variable number of values, we move all of the argument
+;;; registers onto the stack, and return Args and Nargs.
+;;;
+;;;    Args and Nargs are TNs wired to the named locations.  We must
+;;; explicitly allocate these TNs, since their lifetimes overlap with the
+;;; results Start and Count (also, it's nice to be able to target them).
+;;;
+(defun receive-unknown-values (args nargs start count lra-label temp)
+  (declare (type tn args nargs start count temp))
+  (let ((variable-values (gen-label))
+	(done (gen-label)))
+    (inst b variable-values)
+    (inst nop)
+    
+    (inst compute-code-from-lra code-tn code-tn lra-label temp)
+    (inst add csp-tn 4)
+    (storew (first register-arg-tns) csp-tn -1)
+    (inst sub start csp-tn 4)
+    (inst li count (fixnum 1))
+    
+    (emit-label done)
+    
+    (assemble (*elsewhere*)
+      (emit-label variable-values)
+      (inst compute-code-from-lra code-tn code-tn lra-label temp)
+      (do ((arg register-arg-tns (rest arg))
+	   (i 0 (1+ i)))
+	  ((null arg))
+	(storew (first arg) args i))
+      (move start args)
+      (move count nargs)
+      (inst b done)
+      (inst nop)))
+  (undefined-value))
+
+
+;;; VOP that can be inherited by unknown values receivers.  The main thing this
+;;; handles is allocation of the result temporaries.
+;;;
+(define-vop (unknown-values-receiver)
+  (:results
+   (start :scs (any-reg))
+   (count :scs (any-reg)))
+  (:temporary (:sc descriptor-reg :offset ocfp-offset
+		   :from :eval :to (:result 0))
+	      values-start)
+  (:temporary (:sc any-reg :offset nargs-offset
+	       :from :eval :to (:result 1))
+	      nvals)
+  (:temporary (:scs (non-descriptor-reg)) temp))
+
+
+
+;;;; Local call with unknown values convention return:
+
+;;; Non-TR local call for a fixed number of values passed according to the
+;;; unknown values convention.
+;;;
+;;; Args are the argument passing locations, which are specified only to
+;;; terminate their lifetimes in the caller.
+;;;
+;;; Values are the return value locations (wired to the standard passing
+;;; locations).
+;;;
+;;; Save is the save info, which we can ignore since saving has been done.
+;;; Return-PC is the TN that the return PC should be passed in.
+;;; Target is a continuation pointing to the start of the called function.
+;;; Nvals is the number of values received.
+;;;
+;;; Note: we can't use normal load-tn allocation for the fixed args, since all
+;;; registers may be tied up by the more operand.  Instead, we use
+;;; MAYBE-LOAD-STACK-TN.
+;;;
+(define-vop (call-local)
+  (:args (fp)
+	 (nfp)
+	 (args :more t))
+  (:results (values :more t))
+  (:save-p t)
+  (:move-args :local-call)
+  (:info arg-locs callee target nvals)
+  (:vop-var vop)
+  (:temporary (:scs (descriptor-reg) :from (:eval 0)) move-temp)
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
+  (:temporary (:sc any-reg :offset ocfp-offset :from (:eval 0)) ocfp)
+  (:ignore arg-locs args ocfp)
+  (:generator 5
+    (let ((label (gen-label))
+	  (cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(store-stack-tn nfp-save cur-nfp))
+      (maybe-load-stack-tn cfp-tn fp)
+      (let ((callee-nfp (callee-nfp-tn callee)))
+	(when callee-nfp
+	  (move callee-nfp nfp)))
+      (inst compute-lra-from-code
+	    (callee-return-pc-tn callee) code-tn label temp)
+      (inst b target)
+      (inst nop)
+      (emit-return-pc label)
+      (note-this-location vop :unknown-return)
+      (default-unknown-values values nvals move-temp temp label)
+      (when cur-nfp
+	(load-stack-tn cur-nfp nfp-save)))))
+
+
+;;; Non-TR local call for a variable number of return values passed according
+;;; to the unknown values convention.  The results are the start of the values
+;;; glob and the number of values received.
+;;;
+;;; Note: we can't use normal load-tn allocation for the fixed args, since all
+;;; registers may be tied up by the more operand.  Instead, we use
+;;; MAYBE-LOAD-STACK-TN.
+;;;
+(define-vop (multiple-call-local unknown-values-receiver)
+  (:args (fp)
+	 (nfp)
+	 (args :more t))
+  (:save-p t)
+  (:move-args :local-call)
+  (:info save callee target)
+  (:ignore args save)
+  (:vop-var vop)
+  (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
+  (:generator 20
+    (let ((label (gen-label))
+	  (cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(store-stack-tn nfp-save cur-nfp))
+      (maybe-load-stack-tn cfp-tn fp)
+      (let ((callee-nfp (callee-nfp-tn callee)))
+	(when callee-nfp
+	  (move callee-nfp nfp)))
+      (inst compute-lra-from-code
+	    (callee-return-pc-tn callee) code-tn label temp)
+      (inst b target)
+      (inst nop)
+      (emit-return-pc label)
+      (note-this-location vop :unknown-return)
+      (receive-unknown-values values-start nvals start count label temp)
+      (when cur-nfp
+	(load-stack-tn cur-nfp nfp-save)))))
+
+
+;;;; Local call with known values return:
+
+;;; Non-TR local call with known return locations.  Known-value return works
+;;; just like argument passing in local call.
+;;;
+;;; Note: we can't use normal load-tn allocation for the fixed args, since all
+;;; registers may be tied up by the more operand.  Instead, we use
+;;; MAYBE-LOAD-STACK-TN.
+;;;
+(define-vop (known-call-local)
+  (:args (fp)
+	 (nfp)
+	 (args :more t))
+  (:results (res :more t))
+  (:move-args :local-call)
+  (:save-p t)
+  (:info save callee target)
+  (:ignore args res save)
+  (:vop-var vop)
+  (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:generator 5
+    (let ((label (gen-label))
+	  (cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(store-stack-tn nfp-save cur-nfp))
+      (maybe-load-stack-tn cfp-tn fp)
+      (let ((callee-nfp (callee-nfp-tn callee)))
+	(when callee-nfp
+	  (move callee-nfp nfp)))
+      (inst compute-lra-from-code
+	    (callee-return-pc-tn callee) code-tn label temp)
+      (inst b target)
+      (inst nop)
+      (emit-return-pc label)
+      (note-this-location vop :known-return)
+      (when cur-nfp
+	(load-stack-tn cur-nfp nfp-save)))))
+
+;;; Return from known values call.  We receive the return locations as
+;;; arguments to terminate their lifetimes in the returning function.  We
+;;; restore FP and CSP and jump to the Return-PC.
+;;;
+;;; Note: we can't use normal load-tn allocation for the fixed args, since all
+;;; registers may be tied up by the more operand.  Instead, we use
+;;; MAYBE-LOAD-STACK-TN.
+;;;
+(define-vop (known-return)
+  (:args (old-fp :target old-fp-temp)
+	 (return-pc :target return-pc-temp)
+	 (vals :more t))
+  (:temporary (:sc any-reg :from (:argument 0)) old-fp-temp)
+  (:temporary (:sc descriptor-reg :from (:argument 1)) return-pc-temp)
+  (:move-args :known-return)
+  (:info val-locs)
+  (:ignore val-locs vals)
+  (:vop-var vop)
+  (:generator 6
+    (maybe-load-stack-tn old-fp-temp old-fp)
+    (maybe-load-stack-tn return-pc-temp return-pc)
+    (move csp-tn cfp-tn)
+    (let ((cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(inst add nsp-tn cur-nfp 
+	      (- (bytes-needed-for-non-descriptor-stack-frame)
+		 number-stack-displacement))))
+    (inst j return-pc-temp (- vm:word-bytes vm:other-pointer-type))
+    (move cfp-tn old-fp-temp)))
+
+
+;;;; Full call:
+;;;
+;;;    There is something of a cross-product effect with full calls.  Different
+;;; versions are used depending on whether we know the number of arguments or
+;;; the name of the called function, and whether we want fixed values, unknown
+;;; values, or a tail call.
+;;;
+;;; In full call, the arguments are passed creating a partial frame on the
+;;; stack top and storing stack arguments into that frame.  On entry to the
+;;; callee, this partial frame is pointed to by FP.  If there are no stack
+;;; arguments, we don't bother allocating a partial frame, and instead set FP
+;;; to SP just before the call.
+
+;;; Define-Full-Call  --  Internal
+;;;
+;;;    This macro helps in the definition of full call VOPs by avoiding code
+;;; replication in defining the cross-product VOPs.
+;;;
+;;; Name is the name of the VOP to define.
+;;; 
+;;; Named is true if the first argument is a symbol whose global function
+;;; definition is to be called.
+;;;
+;;; Return is either :Fixed, :Unknown or :Tail:
+;;; -- If :Fixed, then the call is for a fixed number of values, returned in
+;;;    the standard passing locations (passed as result operands).
+;;; -- If :Unknown, then the result values are pushed on the stack, and the
+;;;    result values are specified by the Start and Count as in the
+;;;    unknown-values continuation representation.
+;;; -- If :Tail, then do a tail-recursive call.  No values are returned.
+;;;    The Old-Fp and Return-PC are passed as the second and third arguments.
+;;;
+;;; In non-tail calls, the pointer to the stack arguments is passed as the last
+;;; fixed argument.  If Variable is false, then the passing locations are
+;;; passed as a more arg.  Variable is true if there are a variable number of
+;;; arguments passed on the stack.  Variable cannot be specified with :Tail
+;;; return.  TR variable argument call is implemented separately.
+;;;
+;;; In tail call with fixed arguments, the passing locations are passed as a
+;;; more arg, but there is no new-FP, since the arguments have been set up in
+;;; the current frame.
+;;;
+(defmacro define-full-call (name named return variable)
+  (assert (not (and variable (eq return :tail))))
+  `(define-vop (,name
+		,@(when (eq return :unknown)
+		    '(unknown-values-receiver)))
+     (:args
+      ,@(unless (eq return :tail)
+	  '((new-fp :scs (any-reg) :to :eval)))
+
+      ,(if named
+	   '(name :target name-pass)
+	   '(arg-fun :target lexenv))
+      
+      ,@(when (eq return :tail)
+	  '((old-fp :target old-fp-pass)
+	    (return-pc :target return-pc-pass)))
+      
+      ,@(unless variable '((args :more t))))
+
+     ,@(when (eq return :fixed)
+	 '((:results (values :more t))))
+   
+     ,@(unless (eq return :tail)
+	 `((:save-p t)
+	   ,@(unless variable
+	       '((:move-args :full-call)))))
+
+     (:vop-var vop)
+     (:info ,@(unless (or variable (eq return :tail)) '(arg-locs))
+	    ,@(unless variable '(nargs))
+	    ,@(when (eq return :fixed) '(nvals)))
+
+     (:ignore
+      ,@(unless (or variable (eq return :tail)) '(arg-locs))
+      ,@(unless variable '(args)))
+
+     (:temporary (:sc descriptor-reg
+		  :offset ocfp-offset
+		  :from (:argument 1)
+		  ,@(unless (eq return :fixed)
+		      '(:to :eval)))
+		 old-fp-pass)
+
+     (:temporary (:sc descriptor-reg
+		  :offset lra-offset
+		  :from (:argument ,(if (eq return :tail) 2 1))
+		  :to :eval)
+		 return-pc-pass)
+
+     ,(if named
+	  `(:temporary (:sc descriptor-reg :offset cname-offset
+			    :from (:argument ,(if (eq return :tail) 0 1))
+			    :to :eval)
+		       name-pass)
+	  `(:temporary (:sc descriptor-reg :offset lexenv-offset
+			    :from (:argument ,(if (eq return :tail) 0 1))
+			    :to :eval)
+		       lexenv))
+
+     (:temporary (:scs (descriptor-reg) :from (:argument 0) :to :eval)
+		 function)
+     (:temporary (:sc any-reg :offset nargs-offset :to :eval)
+		 nargs-pass)
+
+     ,@(when variable
+	 (mapcar #'(lambda (name offset)
+		     `(:temporary (:sc descriptor-reg
+				   :offset ,offset
+				   :to :eval)
+			 ,name))
+		 register-arg-names register-arg-offsets))
+     ,@(when (eq return :fixed)
+	 '((:temporary (:scs (descriptor-reg) :from :eval) move-temp)))
+
+     ,@(unless (eq return :tail)
+	 '((:temporary (:scs (non-descriptor-reg) :from :eval) temp)
+	   (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)))
+
+     (:generator ,(+ (if named 5 0)
+		     (if variable 19 1)
+		     (if (eq return :tail) 0 10)
+		     15
+		     (if (eq return :unknown) 25 0))
+       (let* ((cur-nfp (current-nfp-tn vop))
+	      ,@(unless (eq return :tail)
+		  '((lra-label (gen-label))))
+	      (filler
+	       (remove nil
+		       (list :load-nargs
+			     ,@(if (eq return :tail)
+				   '((unless (location= old-fp old-fp-pass)
+				       :load-old-fp)
+				     (unless (location= return-pc
+							return-pc-pass)
+				       :load-return-pc)
+				     (when cur-nfp
+				       :frob-nfp))
+				   '(:comp-lra
+				     (when cur-nfp
+				       :frob-nfp)
+				     :save-fp
+				     :load-fp))))))
+	 (flet ((do-next-filler ()
+		  (let* ((next (pop filler))
+			 (what (if (consp next) (car next) next)))
+		    (ecase what
+		      (:load-nargs
+		       ,@(if variable
+			     `((inst sub nargs-pass csp-tn new-fp)
+			       ,@(let ((index -1))
+				   (mapcar #'(lambda (name)
+					       `(loadw ,name new-fp
+						       ,(incf index)))
+					   register-arg-names)))
+			     '((inst li nargs-pass (fixnum nargs)))))
+		      ,@(if (eq return :tail)
+			    '((:load-old-fp
+			       (sc-case old-fp
+				 (any-reg
+				  (inst move old-fp-pass old-fp))
+				 (control-stack
+				  (loadw old-fp-pass cfp-tn
+					 (tn-offset old-fp)))))
+			      (:load-return-pc
+			       (sc-case return-pc
+				 (descriptor-reg
+				  (inst move return-pc-pass return-pc))
+				 (control-stack
+				  (loadw return-pc-pass cfp-tn
+					 (tn-offset return-pc)))))
+			      (:frob-nfp
+			       (inst add nsp-tn cur-nfp
+				     (- (bytes-needed-for-non-descriptor-stack-frame)
+					number-stack-displacement))))
+			    `((:comp-lra
+			       (inst compute-lra-from-code
+				     return-pc-pass code-tn lra-label temp))
+			      (:frob-nfp
+			       (store-stack-tn nfp-save cur-nfp))
+			      (:save-fp
+			       (inst move old-fp-pass cfp-tn))
+			      (:load-fp
+			       ,(if variable
+				    '(move cfp-tn new-fp)
+				    '(if (> nargs register-arg-count)
+					 (move cfp-tn new-fp)
+					 (move cfp-tn csp-tn))))))
+		      ((nil))))))
+
+	   ,@(if named
+		 `((sc-case name
+		     (descriptor-reg (move name-pass name))
+		     (control-stack
+		      (loadw name-pass cfp-tn (tn-offset name))
+		      (do-next-filler))
+		     (immediate
+		      (load-symbol name-pass (tn-value name)))
+		     (constant
+		      (loadw name-pass code-tn (tn-offset name)
+			     vm:other-pointer-type)
+		      (do-next-filler)))
+		   (loadw function name-pass vm:symbol-raw-function-addr-slot
+			  vm:other-pointer-type)
+		   (do-next-filler))
+		 `((sc-case arg-fun
+		     (descriptor-reg (move lexenv arg-fun))
+		     (control-stack
+		      (loadw lexenv cfp-tn (tn-offset arg-fun))
+		      (do-next-filler))
+		     (constant
+		      (loadw lexenv code-tn (tn-offset arg-fun)
+			     vm:other-pointer-type)
+		      (do-next-filler)))
+		   (loadw function lexenv vm:closure-function-slot
+			  vm:function-pointer-type)
+		   (do-next-filler)))
+	   (loop
+	     (if filler
+		 (do-next-filler)
+		 (return)))
+	   
+	   (inst j function
+		 (- (ash vm:function-header-code-offset vm:word-shift)
+		    vm:function-pointer-type))
+	   (inst move code-tn function))
+
+	 ,@(ecase return
+	     (:fixed
+	      '((emit-return-pc lra-label)
+		(note-this-location vop :unknown-return)
+		(default-unknown-values values nvals move-temp temp lra-label)
+		(when cur-nfp
+		  (load-stack-tn cur-nfp nfp-save))))
+	     (:unknown
+	      '((emit-return-pc lra-label)
+		(note-this-location vop :unknown-return)
+		(receive-unknown-values values-start nvals start count
+					lra-label temp)
+		(when cur-nfp
+		  (load-stack-tn cur-nfp nfp-save))))
+	     (:tail))))))
+
+
+(define-full-call call nil :fixed nil)
+(define-full-call call-named t :fixed nil)
+(define-full-call multiple-call nil :unknown nil)
+(define-full-call multiple-call-named t :unknown nil)
+(define-full-call tail-call nil :tail nil)
+(define-full-call tail-call-named t :tail nil)
+
+(define-full-call call-variable nil :fixed t)
+(define-full-call multiple-call-variable nil :unknown t)
+
+
+;;; Defined separately, since needs special code that BLT's the arguments
+;;; down.
+;;;
+(define-vop (tail-call-variable)
+  (:args
+   (args-arg :scs (any-reg) :target args)
+   (function-arg :scs (descriptor-reg) :target lexenv)
+   (old-fp-arg :scs (any-reg) :target old-fp)
+   (lra-arg :scs (descriptor-reg) :target lra))
+
+  (:temporary (:sc any-reg :offset nl0-offset :from (:argument 0)) args)
+  (:temporary (:sc any-reg :offset lexenv-offset :from (:argument 1)) lexenv)
+  (:temporary (:sc any-reg :offset ocfp-offset :from (:argument 2)) old-fp)
+  (:temporary (:sc any-reg :offset lra-offset :from (:argument 3)) lra)
+
+  (:temporary (:scs (any-reg) :from :eval) temp)
+
+  (:vop-var vop)
+
+  (:generator 75
+
+    ;; Move these into the passing locations if they are not already there.
+    (move args args-arg)
+    (move lexenv function-arg)
+    (move old-fp old-fp-arg)
+    (move lra lra-arg)
+
+    ;; Clear the number stack if anything is there.
+    (let ((cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(inst add nsp-tn cur-nfp
+	      (- (bytes-needed-for-non-descriptor-stack-frame)
+		 number-stack-displacement))))
+
+    ;; And jump to the assembly-routine that does the bliting.
+    (inst li temp (make-fixup 'tail-call-variable :assembly-routine))
+    (inst j temp)
+    (inst nop)))
+
+
+;;;; Unknown values return:
+
+
+;;; Do unknown-values return of a fixed number of values.  The Values are
+;;; required to be set up in the standard passing locations.  Nvals is the
+;;; number of values returned.
+;;;
+;;; If returning a single value, then deallocate the current frame, restore
+;;; FP and jump to the single-value entry at Return-PC + 8.
+;;;
+;;; If returning other than one value, then load the number of values returned,
+;;; NIL out unsupplied values registers, restore FP and return at Return-PC.
+;;; When there are stack values, we must initialize the argument pointer to
+;;; point to the beginning of the values block (which is the beginning of the
+;;; current frame.)
+;;;
+(define-vop (return)
+  (:args
+   (old-fp :scs (any-reg))
+   (return-pc :scs (descriptor-reg) :to (:eval 1))
+   (values :more t))
+  (:ignore values)
+  (:info nvals)
+  (:temporary (:sc descriptor-reg :offset a0-offset :from (:eval 0)) a0)
+  (:temporary (:sc descriptor-reg :offset a1-offset :from (:eval 0)) a1)
+  (:temporary (:sc descriptor-reg :offset a2-offset :from (:eval 0)) a2)
+  (:temporary (:sc descriptor-reg :offset a3-offset :from (:eval 0)) a3)
+  (:temporary (:sc descriptor-reg :offset a4-offset :from (:eval 0)) a4)
+  (:temporary (:sc descriptor-reg :offset a5-offset :from (:eval 0)) a5)
+  (:temporary (:sc any-reg :offset nargs-offset) nargs)
+  (:temporary (:sc any-reg :offset ocfp-offset) val-ptr)
+  (:vop-var vop)
+  (:generator 6
+    ;; Clear the number stack.
+    (let ((cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(inst add nsp-tn cur-nfp
+	      (- (bytes-needed-for-non-descriptor-stack-frame)
+		 number-stack-displacement))))
+    (cond ((= nvals 1)
+	   ;; Clear the control stack, and restore the frame pointer.
+	   (move csp-tn cfp-tn)
+	   (move cfp-tn old-fp)
+	   ;; Out of here.
+	   (lisp-return return-pc :offset 2))
+	  (t
+	   ;; Establish the values pointer and values count.
+	   (move val-ptr cfp-tn)
+	   (inst li nargs (fixnum nvals))
+	   ;; restore the frame pointer and clear as much of the control
+	   ;; stack as possible.
+	   (move cfp-tn old-fp)
+	   (inst add csp-tn val-ptr (* nvals word-bytes))
+	   ;; pre-default any argument register that need it.
+	   (when (< nvals register-arg-count)
+	     (dolist (reg (subseq (list a0 a1 a2 a3 a4 a5) nvals))
+	       (move reg null-tn)))
+	   ;; And away we go.
+	   (lisp-return return-pc)))))
+
+;;; Do unknown-values return of an arbitrary number of values (passed on the
+;;; stack.)  We check for the common case of a single return value, and do that
+;;; inline using the normal single value return convention.  Otherwise, we
+;;; branch off to code that calls an assembly-routine.
+;;;
+(define-vop (return-multiple)
+  (:args
+   (old-fp-arg :scs (any-reg) :to (:eval 1))
+   (lra-arg :scs (descriptor-reg) :to (:eval 1))
+   (vals-arg :scs (any-reg) :target vals)
+   (nvals-arg :scs (any-reg) :target nvals))
+
+  (:temporary (:sc any-reg :offset nl1-offset :from (:argument 0)) old-fp)
+  (:temporary (:sc descriptor-reg :offset lra-offset :from (:argument 1)) lra)
+  (:temporary (:sc any-reg :offset nl0-offset :from (:argument 2)) vals)
+  (:temporary (:sc any-reg :offset nargs-offset :from (:argument 3)) nvals)
+  (:temporary (:sc descriptor-reg :offset a0-offset) a0)
+
+  (:temporary (:scs (any-reg) :from (:eval 1)) temp)
+
+  (:vop-var vop)
+
+  (:generator 13
+    (let ((not-single (gen-label)))
+      ;; Clear the number stack.
+      (let ((cur-nfp (current-nfp-tn vop)))
+	(when cur-nfp
+	  (inst add nsp-tn cur-nfp
+		(- (bytes-needed-for-non-descriptor-stack-frame)
+		   number-stack-displacement))))
+
+      ;; Check for the single case.
+      (inst cmp nvals-arg (fixnum 1))
+      (inst b :ne not-single)
+      (inst ld a0 vals-arg)
+
+      ;; Return with one value.
+      (move csp-tn cfp-tn)
+      (move cfp-tn old-fp-arg)
+      (lisp-return lra-arg :offset 2)
+		
+      ;; Nope, not the single case.
+      (emit-label not-single)
+      (move old-fp old-fp-arg)
+      (move lra lra-arg)
+      (move vals vals-arg)
+      (move nvals nvals-arg)
+      (inst li temp (make-fixup 'return-multiple :assembly-routine))
+      (inst j temp)
+      (inst nop))))
+
+
+
+;;;; XEP hackery:
+
+
+;;; We don't need to do anything special for regular functions.
+;;;
+(define-vop (setup-environment)
+  (:info label)
+  (:ignore label)
+  (:generator 0
+    ;; Don't bother doing anything.
+    ))
+
+;;; Get the lexical environment from it's passing location.
+;;;
+(define-vop (setup-closure-environment)
+  (:temporary (:sc descriptor-reg :offset lexenv-offset :target closure
+	       :to (:result 0))
+	      lexenv)
+  (:results (closure :scs (descriptor-reg)))
+  (:info label)
+  (:ignore label)
+  (:generator 6
+    ;; Get result.
+    (move closure lexenv)))
+
+;;; Copy a more arg from the argument area to the end of the current frame.
+;;; Fixed is the number of non-more arguments. 
+;;;
+(define-vop (copy-more-arg)
+  (:temporary (:sc any-reg :offset nl0-offset) result)
+  (:temporary (:sc any-reg :offset nl1-offset) count)
+  (:temporary (:sc any-reg :offset nl2-offset) src)
+  (:temporary (:sc any-reg :offset nl3-offset) dst)
+  (:temporary (:sc descriptor-reg :offset l0-offset) temp)
+  (:info fixed)
+  (:generator 20
+    (let ((loop (gen-label))
+	  (do-regs (gen-label))
+	  (done (gen-label)))
+      (when (< fixed register-arg-count)
+	;; Save a pointer to the results so we can fill in register args.
+	;; We don't need this if there are more fixed args than reg args.
+	(move result csp-tn))
+      ;; Allocate the space on the stack.
+      (cond ((zerop fixed)
+	     (inst cmp nargs-tn)
+	     (inst b :eq done)
+	     (inst add csp-tn csp-tn nargs-tn))
+	    (t
+	     (inst subcc count nargs-tn (fixnum fixed))
+	     (inst b :le done)
+	     (inst nop)
+	     (inst add csp-tn csp-tn count)))
+      (when (< fixed register-arg-count)
+	;; We must stop when we run out of stack args, not when we run out of
+	;; more args.
+	(inst subcc count nargs-tn (fixnum register-arg-count))
+	;; Everything of interest in registers.
+	(inst b :le do-regs))
+      ;; Initialize dst to be end of stack.
+      (move dst csp-tn)
+      ;; Initialize src to be end of args.
+      (inst add src cfp-tn nargs-tn)
+
+      (emit-label loop)
+      ;; *--dst = *--src, --count
+      (inst add src src (- vm:word-bytes))
+      (inst subcc count count (fixnum 1))
+      (loadw temp src)
+      (inst add dst dst (- vm:word-bytes))
+      (inst b :gt loop)
+      (storew temp dst)
+
+      (emit-label do-regs)
+      (when (< fixed register-arg-count)
+	;; Now we have to deposit any more args that showed up in registers.
+	(inst subcc count nargs-tn (fixnum fixed))
+	(do ((i fixed (1+ i)))
+	    ((>= i register-arg-count))
+	  ;; Don't deposit any more than there are.
+	  (inst b :eq done)
+	  (inst subcc count (fixnum 1))
+	  ;; Store it relative to the pointer saved at the start.
+	  (storew (nth i register-arg-tns) result (- i fixed))))
+      (emit-label done))))
+
+
+;;; More args are stored consequtively on the stack, starting immediately at
+;;; the context pointer.  The context pointer is not typed, so the lowtag is 0.
+;;;
+(define-vop (more-arg word-index-ref)
+  (:variant 0 0)
+  (:translate %more-arg))
+
+
+;;; Turn more arg (context, count) into a list.
+;;;
+(define-vop (listify-rest-args)
+  (:args (context-arg :target context :scs (descriptor-reg))
+	 (count-arg :target count :scs (any-reg)))
+  (:arg-types * tagged-num)
+  (:temporary (:scs (any-reg) :from (:argument 0)) context)
+  (:temporary (:scs (any-reg) :from (:argument 1)) count)
+  (:temporary (:scs (descriptor-reg) :from :eval) temp)
+  (:temporary (:scs (non-descriptor-reg) :from :eval) ndescr dst)
+  (:results (result :scs (descriptor-reg)))
+  (:translate %listify-rest-args)
+  (:policy :safe)
+  (:generator 20
+    (let ((enter (gen-label))
+	  (loop (gen-label))
+	  (done (gen-label)))
+      (move context context-arg)
+      (move count count-arg)
+      ;; Check to see if there are any arguments.
+      (inst cmp count)
+      (inst b :eq done)
+      (move result null-tn)
+
+      ;; We need to do this atomically.
+      (pseudo-atomic (ndescr)
+	;; Allocate a cons (2 words) for each item.
+	(inst add result alloc-tn vm:list-pointer-type)
+	(move dst result)
+	(inst add alloc-tn alloc-tn count)
+	(inst b enter)
+	(inst add alloc-tn alloc-tn count)
+
+	;; Store the current cons in the cdr of the previous cons.
+	(emit-label loop)
+	(storew dst dst -1 vm:list-pointer-type)
+
+	;; Grab one value and stash it in the car of this cons.
+	(emit-label enter)
+	(loadw temp context)
+	(inst add context context vm:word-bytes)
+	(storew temp dst 0 vm:list-pointer-type)
+
+	;; Dec count, and if != zero, go back for more.
+	(inst subcc count (fixnum 1))
+	(inst b :gt loop)
+	(inst add dst dst (* 2 vm:word-bytes))
+
+	;; NIL out the last cons.
+	(storew null-tn dst -1 vm:list-pointer-type))
+      (emit-label done))))
+
+
+;;; Return the location and size of the more arg glob created by Copy-More-Arg.
+;;; Supplied is the total number of arguments supplied (originally passed in
+;;; NARGS.)  Fixed is the number of non-rest arguments.
+;;;
+;;; We must duplicate some of the work done by Copy-More-Arg, since at that
+;;; time the environment is in a pretty brain-damaged state, preventing this
+;;; info from being returned as values.  What we do is compute
+;;; supplied - fixed, and return a pointer that many words below the current
+;;; stack top.
+;;;
+(define-vop (more-arg-context)
+  (:args (supplied :scs (any-reg)))
+  (:arg-types positive-fixnum)
+  (:info fixed)
+  (:results
+   (context :scs (descriptor-reg))
+   (count :scs (any-reg)))
+  (:generator 5
+    (inst sub count supplied (fixnum fixed))
+    (inst sub context csp-tn count)))
+
+
+;;; Signal wrong argument count error if Nargs isn't = to Count.
+;;;
+(define-vop (verify-argument-count)
+  (:args (nargs :scs (any-reg)))
+  (:arg-types positive-fixnum)
+  (:info count)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 3
+    (let ((err-lab
+	   (generate-error-code vop invalid-argument-count-error nargs)))
+      (inst cmp nargs (fixnum count))
+      (inst b :ne err-lab)
+      (inst nop))))
+
+;;; Signal various errors.
+;;;
+(macrolet ((frob (name error &rest args)
+	     `(define-vop (,name)
+		(:args ,@(mapcar #'(lambda (arg)
+				     `(,arg :scs (any-reg descriptor-reg)))
+				 args))
+		(:vop-var vop)
+		(:save-p :compute-only)
+		(:generator 1000
+		  (error-call vop ,error ,@args)))))
+  (frob argument-count-error invalid-argument-count-error nargs)
+  (frob type-check-error object-not-type-error object type)
+  (frob odd-keyword-arguments-error odd-keyword-arguments-error)
+  (frob unknown-keyword-argument-error unknown-keyword-argument-error key))
diff --git a/compiler/sparc/cell.lisp b/compiler/sparc/cell.lisp
new file mode 100644
index 000000000..bb62a1db6
--- /dev/null
+++ b/compiler/sparc/cell.lisp
@@ -0,0 +1,336 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/cell.lisp,v 1.1 1990/11/30 17:04:38 wlott Exp $
+;;;
+;;;    This file contains the VM definition of various primitive memory access
+;;; VOPs for the SPARC.
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Converted by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+
+;;;; Data object definition macros.
+
+(vm:define-for-each-primitive-object (obj)
+  (collect ((forms))
+    (let ((lowtag (vm:primitive-object-lowtag obj)))
+      (dolist (slot (vm:primitive-object-slots obj))
+	(let* ((name (vm:slot-name slot))
+	       (offset (vm:slot-offset slot))
+	       (rest-p (vm:slot-rest-p slot))
+	       (slot-opts (vm:slot-options slot))
+	       (ref-trans (getf slot-opts :ref-trans))
+	       (ref-vop (getf slot-opts :ref-vop ref-trans))
+	       (set-trans (getf slot-opts :set-trans))
+	       (setf-function-p (and (listp set-trans)
+				     (= (length set-trans) 2)
+				     (eq (car set-trans) 'setf)))
+	       (setf-vop (getf slot-opts :setf-vop
+			       (when setf-function-p
+				 (intern (concatenate
+					  'simple-string
+					  "SET-"
+					  (string (cadr set-trans)))))))
+	       (set-vop (getf slot-opts :set-vop
+			      (if setf-vop nil set-trans))))
+	  (when ref-vop
+	    (forms `(define-vop (,ref-vop ,(if rest-p 'slot-ref 'cell-ref))
+				(:variant ,offset ,lowtag)
+		      ,@(when ref-trans
+			  `((:translate ,ref-trans))))))
+	  (when (or set-vop setf-vop)
+	    (forms `(define-vop ,(cond ((and rest-p setf-vop)
+					(error "Can't automatically generate ~
+					a setf VOP for :rest-p ~
+					slots: ~S in ~S"
+					       name
+					       (vm:primitive-object-name obj)))
+				       (rest-p `(,set-vop slot-set))
+				       ((and set-vop setf-function-p)
+					(error "Setf functions (list ~S) must ~
+					use :setf-vops."
+					       set-trans))
+				       (set-vop `(,set-vop cell-set))
+				       (setf-function-p
+					`(,setf-vop cell-setf-function))
+				       (t
+					`(,setf-vop cell-setf)))
+		      (:variant ,offset ,lowtag)
+		      ,@(when set-trans
+			  `((:translate ,set-trans)))))))))
+    (when (forms)
+      `(progn
+	 ,@(forms)))))
+
+
+
+;;;; Symbol hacking VOPs:
+
+;;; Do a cell ref with an error check for being unbound.
+;;;
+(define-vop (checked-cell-ref)
+  (:args (object :scs (descriptor-reg) :target obj-temp))
+  (:results (value :scs (descriptor-reg any-reg)))
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:temporary (:scs (descriptor-reg) :from (:argument 0)) obj-temp))
+
+;;; With Symbol-Value, we check that the value isn't the trap object.  So
+;;; Symbol-Value of NIL is NIL.
+;;;
+(define-vop (symbol-value checked-cell-ref)
+  (:translate symbol-value)
+  (:generator 9
+    (move obj-temp object)
+    (loadw value obj-temp vm:symbol-value-slot vm:other-pointer-type)
+    (let ((err-lab (generate-error-code vop unbound-symbol-error obj-temp)))
+      (inst cmp value vm:unbound-marker-type)
+      (inst b :eq err-lab)
+      (inst nop))))
+
+;;; With Symbol-Function, we check that the result is a function, so NIL is
+;;; always un-fbound.
+;;;
+(define-vop (symbol-function checked-cell-ref)
+  (:translate symbol-function)
+  (:temporary (:type random  :scs (non-descriptor-reg)) temp)
+  (:generator 10
+    (move obj-temp object)
+    (loadw value obj-temp vm:symbol-function-slot vm:other-pointer-type)
+    (let ((err-lab (generate-error-code vop undefined-symbol-error obj-temp)))
+      (test-type value temp err-lab t vm:function-pointer-type))))
+
+#+nil
+(define-vop (symbol-setf-function checked-cell-ref)
+  (:temporary (:type random  :scs (non-descriptor-reg)) temp)
+  (:translate symbol-setf-function)
+  (:generator 10
+    (move obj-temp object)
+    (loadw value obj-temp vm:symbol-setf-function-slot vm:other-pointer-type)
+    (let ((err-lab (generate-error-code vop undefined-symbol-error obj-temp)))
+      (test-type value temp err-lab t vm:function-pointer-type))))
+
+
+;;; Like CHECKED-CELL-REF, only we are a predicate to see if the cell is bound.
+(define-vop (boundp-frob)
+  (:args (object :scs (descriptor-reg)))
+  (:conditional)
+  (:info target not-p)
+  (:policy :fast-safe)
+  (:temporary (:scs (descriptor-reg)) value))
+
+(define-vop (boundp boundp-frob)
+  (:translate boundp)
+  (:generator 9
+    (loadw value object vm:symbol-value-slot vm:other-pointer-type)
+    (inst cmp value vm:unbound-marker-type)
+    (inst b (if not-p :eq :ne) target)
+    (inst nop)))
+
+
+;;; SYMBOL isn't a primitive type, so we can't use it for the arg restriction
+;;; on the symbol case of fboundp.  Instead, we transform to a funny function.
+
+(defknown fboundp/symbol (t) boolean (flushable))
+;;;
+(deftransform fboundp ((x) (symbol))
+  '(fboundp/symbol x))
+;;;
+(define-vop (fboundp/symbol boundp-frob)
+  (:translate fboundp/symbol)
+  (:temporary (:type random  :scs (non-descriptor-reg)) temp)
+  (:generator 10
+    (loadw value object vm:symbol-function-slot vm:other-pointer-type)
+    (test-type value temp target not-p vm:function-pointer-type)))
+
+#+nil(progn
+(defknown fboundp/setf (t) boolean (flushable))
+;;;
+(deftransform fboundp ((x) (cons))
+  '(fboundp/setf (cadr x)))
+;;;
+(define-vop (fboundp/setf boundp-frob)
+  (:translate fboundp/setf)
+  (:temporary (:type random  :scs (non-descriptor-reg)) temp)
+  (:generator 10
+    (loadw value object vm:symbol-setf-function-slot vm:other-pointer-type)
+    (test-type value temp target not-p vm:function-pointer-type)))
+)
+
+(define-vop (fast-symbol-value cell-ref)
+  (:variant vm:symbol-value-slot vm:other-pointer-type)
+  (:policy :fast)
+  (:translate symbol-value))
+
+(define-vop (fast-symbol-function cell-ref)
+  (:variant vm:symbol-function-slot vm:other-pointer-type)
+  (:policy :fast)
+  (:translate symbol-function))
+
+
+(define-vop (set-symbol-function)
+  (:translate %sp-set-definition)
+  (:policy :fast-safe)
+  (:args (symbol :scs (descriptor-reg))
+	 (function :scs (descriptor-reg) :target result))
+  (:results (result :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) type)
+  (:temporary (:scs (any-reg)) temp)
+  (:save-p :compute-only)
+  (:vop-var vop)
+  (:generator 30
+    (let ((closure (gen-label))
+	  (normal-fn (gen-label)))
+      (load-type type function (- vm:function-pointer-type))
+      (inst nop)
+      (inst cmp type vm:closure-header-type)
+      (inst b :eq closure)
+      (inst cmp type vm:function-header-type)
+      (inst b :eq normal-fn)
+      (inst move temp function)
+      (error-call vop kernel:object-not-function-error function)
+      (emit-label closure)
+      (inst li temp (make-fixup "_closure_tramp" :foreign))
+      (emit-label normal-fn)
+      (storew function symbol vm:symbol-function-slot vm:other-pointer-type)
+      (storew temp symbol vm:symbol-raw-function-addr-slot
+	      vm:other-pointer-type)
+      (move result function))))
+
+
+(defknown fmakunbound/symbol (symbol) symbol (unsafe))
+;;;
+(deftransform fmakunbound ((symbol) (symbol))
+  '(progn
+     (fmakunbound/symbol symbol)
+     t))
+;;;
+(define-vop (fmakunbound/symbol)
+  (:translate fmakunbound/symbol)
+  (:policy :fast-safe)
+  (:args (symbol :scs (descriptor-reg) :target result))
+  (:results (result :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:generator 5
+    (inst li temp vm:unbound-marker-type)
+    (storew temp symbol vm:symbol-function-slot vm:other-pointer-type)
+    (inst li temp (make-fixup "_undefined_tramp" :foreign))
+    (storew temp symbol vm:symbol-raw-function-addr-slot vm:other-pointer-type)
+    (move result symbol)))
+
+
+;;; Binding and Unbinding.
+
+;;; BIND -- Establish VAL as a binding for SYMBOL.  Save the old value and
+;;; the symbol on the binding stack and stuff the new value into the
+;;; symbol.
+
+(define-vop (bind)
+  (:args (val :scs (any-reg descriptor-reg))
+	 (symbol :scs (descriptor-reg)))
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:generator 5
+    (loadw temp symbol vm:symbol-value-slot vm:other-pointer-type)
+    (inst add bsp-tn bsp-tn (* 2 vm:word-bytes))
+    (storew temp bsp-tn (- vm:binding-value-slot vm:binding-size))
+    (storew symbol bsp-tn (- vm:binding-symbol-slot vm:binding-size))
+    (storew val symbol vm:symbol-value-slot vm:other-pointer-type)))
+
+
+(define-vop (unbind)
+  (:temporary (:scs (descriptor-reg)) symbol value)
+  (:generator 0
+    (loadw symbol bsp-tn (- vm:binding-symbol-slot vm:binding-size))
+    (loadw value bsp-tn (- vm:binding-value-slot vm:binding-size))
+    (storew value symbol vm:symbol-value-slot vm:other-pointer-type)
+    (storew zero-tn bsp-tn (- vm:binding-symbol-slot vm:binding-size))
+    (inst sub bsp-tn bsp-tn (* 2 vm:word-bytes))))
+
+
+(define-vop (unbind-to-here)
+  (:args (arg :scs (descriptor-reg any-reg) :target where))
+  (:temporary (:scs (any-reg) :from (:argument 0)) where)
+  (:temporary (:scs (descriptor-reg)) symbol value)
+  (:generator 0
+    (let ((loop (gen-label))
+	  (skip (gen-label))
+	  (done (gen-label)))
+      (move where arg)
+      (inst cmp where bsp-tn)
+      (inst b :eq done)
+      (loadw symbol bsp-tn (- vm:binding-symbol-slot vm:binding-size))
+
+      (emit-label loop)
+      (inst cmp symbol)
+      (inst b :eq skip)
+      (loadw value bsp-tn (- vm:binding-value-slot vm:binding-size))
+      (storew value symbol vm:symbol-value-slot vm:other-pointer-type)
+      (storew zero-tn bsp-tn (- vm:binding-symbol-slot vm:binding-size))
+
+      (emit-label skip)
+      (inst sub bsp-tn bsp-tn (* 2 vm:word-bytes))
+      (inst cmp where bsp-tn)
+      (inst b :ne loop)
+      (loadw symbol bsp-tn (- vm:binding-symbol-slot vm:binding-size))
+
+      (emit-label done))))
+
+
+
+;;;; Closure indexing.
+
+(define-vop (closure-index-ref word-index-ref)
+  (:variant vm:closure-info-offset vm:function-pointer-type)
+  (:translate %closure-index-ref))
+
+
+;;;; Structure hackery:
+
+(define-vop (structure-length cell-ref)
+  (:variant vm:vector-length-slot vm:other-pointer-type)
+  (:policy :fast-safe)
+  (:translate structure-length))
+
+(define-vop (structure-ref slot-ref)
+  (:variant vm:vector-data-offset vm:other-pointer-type)
+  (:policy :fast-safe)
+  (:translate structure-ref)
+  (:arg-types structure (:constant (integer 0 #.(1- (ash 1 29))))))
+
+(define-vop (structure-set slot-set)
+  (:policy :fast-safe)
+  (:translate structure-set)
+  (:variant vm:vector-data-offset vm:other-pointer-type)
+  (:arg-types structure (:constant (integer 0 #.(1- (ash 1 29)))) *))
+
+(define-vop (structure-index-ref word-index-ref)
+  (:policy :fast-safe) 
+  (:translate structure-ref)
+  (:variant vm:vector-data-offset vm:other-pointer-type)
+  (:arg-types structure positive-fixnum))
+
+(define-vop (structure-index-set word-index-set)
+  (:policy :fast-safe) 
+  (:translate structure-set)
+  (:variant vm:vector-data-offset vm:other-pointer-type)
+  (:arg-types structure positive-fixnum *))
+
+
+
+;;;; Extra random indexers.
+
+(define-vop (code-constant-set word-index-set)
+  (:variant vm:code-constants-offset vm:other-pointer-type))
+
diff --git a/compiler/sparc/char.lisp b/compiler/sparc/char.lisp
new file mode 100644
index 000000000..eb8a6e629
--- /dev/null
+++ b/compiler/sparc/char.lisp
@@ -0,0 +1,133 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/char.lisp,v 1.1 1990/11/30 17:04:40 wlott Exp $
+;;; 
+;;; This file contains the SPARC VM definition of character operations.
+;;;
+;;; Written by Rob MacLachlan
+;;; Converted for the MIPS R2000 by Christopher Hoover.
+;;; And then to the SPARC by William Lott.
+;;;
+(in-package "SPARC")
+
+
+
+;;;; Moves and coercions:
+
+;;; Move a tagged char to an untagged representation.
+;;;
+(define-vop (move-to-base-character)
+  (:args (x :scs (any-reg)))
+  (:results (y :scs (base-character-reg)))
+  (:generator 1
+    (inst srl y x vm:type-bits)))
+;;;
+(define-move-vop move-to-base-character :move
+  (any-reg) (base-character-reg))
+
+
+;;; Move an untagged char to a tagged representation.
+;;;
+(define-vop (move-from-base-character)
+  (:args (x :scs (base-character-reg)))
+  (:results (y :scs (any-reg)))
+  (:generator 1
+    (inst sll y x vm:type-bits)
+    (inst or y vm:base-character-type)))
+;;;
+(define-move-vop move-from-base-character :move
+  (base-character-reg) (any-reg))
+
+;;; Move untagged base-character values.
+;;;
+(define-vop (base-character-move)
+  (:args (x :target y
+	    :scs (base-character-reg)
+	    :load-if (not (location= x y))))
+  (:results (y :scs (base-character-reg)
+	       :load-if (not (location= x y))))
+  (:effects)
+  (:affected)
+  (:generator 0
+    (move y x)))
+;;;
+(define-move-vop base-character-move :move
+  (base-character-reg) (base-character-reg))
+
+
+;;; Move untagged base-character arguments/return-values.
+;;;
+(define-vop (move-base-character-argument)
+  (:args (x :target y
+	    :scs (base-character-reg))
+	 (fp :scs (any-reg)
+	     :load-if (not (sc-is y base-character-reg))))
+  (:results (y))
+  (:generator 0
+    (sc-case y
+      (base-character-reg
+       (move y x))
+      (base-character-stack
+       (storew x fp (tn-offset y))))))
+;;;
+(define-move-vop move-base-character-argument :move-argument
+  (any-reg base-character-reg) (base-character-reg))
+
+
+;;; Use standard MOVE-ARGUMENT + coercion to move an untagged base-character
+;;; to a descriptor passing location.
+;;;
+(define-move-vop move-argument :move-argument
+  (base-character-reg) (any-reg descriptor-reg))
+
+
+
+;;;; Other operations:
+
+(define-vop (char-code)
+  (:translate char-code)
+  (:policy :fast-safe)
+  (:args (ch :scs (base-character-reg) :target res))
+  (:arg-types base-character)
+  (:results (res :scs (any-reg)))
+  (:result-types positive-fixnum)
+  (:generator 1
+    (inst sll res ch 2)))
+
+(define-vop (code-char)
+  (:translate code-char)
+  (:policy :fast-safe)
+  (:args (code :scs (any-reg) :target res))
+  (:arg-types positive-fixnum)
+  (:results (res :scs (base-character-reg)))
+  (:result-types base-character)
+  (:generator 1
+    (inst srl res code 2)))
+
+
+;;; Comparison of base-characters.
+;;;
+(define-vop (base-character-compare pointer-compare)
+  (:args (x :scs (base-character-reg))
+	 (y :scs (base-character-reg)))
+  (:arg-types base-character base-character))
+
+(define-vop (fast-char=/base-character base-character-compare)
+  (:translate char=)
+  (:variant :eq :ne))
+
+(define-vop (fast-char</base-character base-character-compare)
+  (:translate char<)
+  (:variant :ltu :geu))
+
+(define-vop (fast-char>/base-character base-character-compare)
+  (:translate char>)
+  (:variant :gtu :leu))
+
diff --git a/compiler/sparc/debug.lisp b/compiler/sparc/debug.lisp
new file mode 100644
index 000000000..fe306eaf6
--- /dev/null
+++ b/compiler/sparc/debug.lisp
@@ -0,0 +1,108 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/debug.lisp,v 1.1 1990/11/30 17:04:41 wlott Exp $
+;;;
+;;; Compiler support for the new whizzy debugger.
+;;;
+;;; Written by William Lott.
+;;; 
+(in-package "SPARC")
+
+(defknown di::current-sp () system-area-pointer (movable flushable))
+(defknown di::current-fp () system-area-pointer (movable flushable))
+(defknown di::stack-ref (system-area-pointer index) t (flushable))
+(defknown di::%set-stack-ref (system-area-pointer index t) t (unsafe))
+(defknown di::lra-code-header (t) t (movable flushable))
+(defknown di::function-code-header (t) t (movable flushable))
+(defknown di::make-lisp-obj ((unsigned-byte 32)) t (movable flushable))
+(defknown di::get-lisp-obj-address (t) (unsigned-byte 32) (movable flushable))
+
+(define-vop (debug-cur-sp)
+  (:translate di::current-sp)
+  (:policy :fast-safe)
+  (:results (res :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:generator 1
+    (move res csp-tn)))
+
+(define-vop (debug-cur-fp)
+  (:translate di::current-fp)
+  (:policy :fast-safe)
+  (:results (res :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:generator 1
+    (move res cfp-tn)))
+
+(define-vop (read-control-stack sap-ref)
+  (:translate di::stack-ref)
+  (:policy :fast-safe)
+  (:results (result :scs (descriptor-reg)))
+  (:result-types *)
+  (:variant :long nil))
+
+(define-vop (write-control-stack sap-set)
+  (:translate di::%set-stack-ref)
+  (:policy :fast-safe)
+  (:args (sap :scs (sap-reg))
+	 (offset :scs (any-reg signed-reg zero immediate))
+	 (value :scs (descriptor-reg) :target result))
+  (:arg-types system-area-pointer positive-fixnum *)
+  (:results (result :scs (descriptor-reg)))
+  (:result-types *)
+  (:variant :long))
+
+(define-vop (code-from-mumble)
+  (:policy :fast-safe)
+  (:args (thing :scs (descriptor-reg)))
+  (:results (code :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:variant-vars lowtag)
+  (:generator 5
+    (let ((bogus (gen-label))
+	  (done (gen-label)))
+      (loadw temp thing 0 lowtag)
+      (inst srl temp vm:type-bits)
+      (inst cmp temp)
+      (inst b :eq bogus)
+      (inst sll temp (1- (integer-length vm:word-bytes)))
+      (unless (= lowtag vm:other-pointer-type)
+	(inst add temp (- lowtag vm:other-pointer-type)))
+      (inst sub code thing temp)
+      (emit-label done)
+      (assemble (*elsewhere*)
+	(emit-label bogus)
+	(inst b done)
+	(move code null-tn)))))
+
+(define-vop (code-from-lra code-from-mumble)
+  (:translate di::lra-code-header)
+  (:variant vm:other-pointer-type))
+
+(define-vop (code-from-function code-from-mumble)
+  (:translate di::function-code-header)
+  (:variant vm:function-pointer-type))
+
+(define-vop (make-lisp-obj)
+  (:policy :fast-safe)
+  (:translate di::make-lisp-obj)
+  (:args (value :scs (unsigned-reg) :target result))
+  (:arg-types unsigned-num)
+  (:results (result :scs (descriptor-reg)))
+  (:generator 1
+    (move result value)))
+
+(define-vop (get-lisp-obj-address)
+  (:policy :fast-safe)
+  (:translate di::get-lisp-obj-address)
+  (:args (thing :scs (descriptor-reg) :target result))
+  (:results (result :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:generator 1
+    (move result thing)))
diff --git a/compiler/sparc/float.lisp b/compiler/sparc/float.lisp
new file mode 100644
index 000000000..75f839d27
--- /dev/null
+++ b/compiler/sparc/float.lisp
@@ -0,0 +1,529 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/float.lisp,v 1.1 1990/11/30 17:04:42 wlott Exp $
+;;;
+;;;    This file contains floating point support for the MIPS.
+;;;
+;;; Written by Rob MacLachlan
+;;; Sparc conversion by William Lott.
+;;;
+(in-package "SPARC")
+
+
+;;;; Move functions:
+
+(define-move-function (load-single 1) (vop x y)
+  ((single-stack) (single-reg))
+  (inst ldf y (current-nfp-tn vop) (* (tn-offset x) vm:word-bytes)))
+
+(define-move-function (store-single 1) (vop x y)
+  ((single-reg) (single-stack))
+  (inst stf x (current-nfp-tn vop) (* (tn-offset y) vm:word-bytes)))
+
+
+(define-move-function (load-double 2) (vop x y)
+  ((double-stack) (double-reg))
+  (let ((nfp (current-nfp-tn vop))
+	(offset (* (tn-offset x) vm:word-bytes)))
+    (inst lddf y nfp offset)))
+
+(define-move-function (store-double 2) (vop x y)
+  ((double-reg) (double-stack))
+  (let ((nfp (current-nfp-tn vop))
+	(offset (* (tn-offset y) vm:word-bytes)))
+    (inst stdf x nfp offset)))
+
+
+
+;;;; Move VOPs:
+
+(macrolet ((frob (vop sc double-p)
+	     `(progn
+		(define-vop (,vop)
+		  (:args (x :scs (,sc)
+			    :target y
+			    :load-if (not (location= x y))))
+		  (:results (y :scs (,sc)
+			       :load-if (not (location= x y))))
+		  (:generator 0
+		    (unless (location= y x)
+		      (inst fmovs y x)
+		      ,@(when double-p
+			  '((inst fmovs-odd y x))))))
+		(define-move-vop ,vop :move (,sc) (,sc)))))
+  (frob single-move single-reg nil)
+  (frob double-move double-reg t))
+
+
+(define-vop (move-from-float)
+  (:args (x :to :save))
+  (:results (y))
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:variant-vars double-p size type data)
+  (:generator 13
+    (with-fixed-allocation (y ndescr type size)
+      (if double-p
+	  (inst stdf x y (- (* data vm:word-bytes) vm:other-pointer-type))
+	  (inst stf x y (- (* data vm:word-bytes) vm:other-pointer-type))))))
+
+(macrolet ((frob (name sc &rest args)
+	     `(progn
+		(define-vop (,name move-from-float)
+		  (:args (x :scs (,sc) :to :save))
+		  (:results (y :scs (descriptor-reg)))
+		  (:variant ,@args))
+		(define-move-vop ,name :move (,sc) (descriptor-reg)))))
+  (frob move-from-single single-reg
+    nil vm:single-float-size vm:single-float-type vm:single-float-value-slot)
+  (frob move-from-double double-reg
+    t vm:double-float-size vm:double-float-type vm:double-float-value-slot))
+
+(macrolet ((frob (name sc double-p value)
+	     `(progn
+		(define-vop (,name)
+		  (:args (x :scs (descriptor-reg)))
+		  (:results (y :scs (,sc)))
+		  (:generator 2
+		    (inst ,(if double-p 'lddf 'ldf) y x
+			  (- (* ,value vm:word-bytes) vm:other-pointer-type))))
+		(define-move-vop ,name :move (descriptor-reg) (,sc)))))
+  (frob move-to-single single-reg nil vm:single-float-value-slot)
+  (frob move-to-double double-reg t vm:double-float-value-slot))
+
+
+(macrolet ((frob (name sc stack-sc double-p)
+	     `(progn
+		(define-vop (,name)
+		  (:args (x :scs (,sc) :target y)
+			 (nfp :scs (any-reg)
+			      :load-if (not (sc-is y ,sc))))
+		  (:results (y))
+		  (:generator ,(if double-p 2 1)
+		    (sc-case y
+		      (,sc
+		       (unless (location= x y)
+			 (inst fmovs y x)
+			 ,@(when double-p
+			     '((inst fmovs-odd y x)))))
+		      (,stack-sc
+		       (let ((offset (* (tn-offset y) vm:word-bytes)))
+			 (inst ,(if double-p 'stdf 'stf) x nfp offset))))))
+		(define-move-vop ,name :move-argument
+		  (,sc descriptor-reg) (,sc)))))
+  (frob move-single-float-argument single-reg single-stack nil)
+  (frob move-double-float-argument double-reg double-stack t))
+
+
+(define-move-vop move-argument :move-argument
+  (single-reg double-reg) (descriptor-reg))
+
+
+;;;; Arithmetic VOPs:
+
+(define-vop (float-op)
+  (:args (x) (y))
+  (:results (r))
+  (:policy :fast-safe)
+  (:note "inline float arithmetic")
+  (:vop-var vop)
+  (:save-p :compute-only))
+
+(macrolet ((frob (name sc ptype)
+	     `(define-vop (,name float-op)
+		(:args (x :scs (,sc))
+		       (y :scs (,sc)))
+		(:results (r :scs (,sc)))
+		(:arg-types ,ptype ,ptype)
+		(:result-types ,ptype))))
+  (frob single-float-op single-reg single-float)
+  (frob double-float-op double-reg double-float))
+
+(macrolet ((frob (op sinst sname scost dinst dname dcost)
+	     `(progn
+		(define-vop (,sname single-float-op)
+		  (:translate ,op)
+		  (:generator ,scost
+		    (inst ,sinst r x y)))
+		(define-vop (,dname double-float-op)
+		  (:translate ,op)
+		  (:generator ,dcost
+		    (inst ,dinst r x y))))))
+  (frob + fadds +/single-float 2 faddd +/double-float 2)
+  (frob - fsubs -/single-float 2 fsubd -/double-float 2)
+  (frob * fmuls */single-float 4 fmuld */double-float 5)
+  (frob / fdivs //single-float 12 fdivd //double-float 19))
+
+(macrolet ((frob (name inst translate double-p sc type)
+	     `(define-vop (,name)
+		(:args (x :scs (,sc)))
+		(:results (y :scs (,sc)))
+		(:translate ,translate)
+		(:policy :fast-safe)
+		(:arg-types ,type)
+		(:result-types ,type)
+		(:note "inline float arithmetic")
+		(:vop-var vop)
+		(:save-p :compute-only)
+		(:generator 1
+		  (note-this-location vop :internal-error)
+		  (inst ,inst y x)
+		  ,@(when double-p
+		      '((inst fmovs-odd y x)))))))
+  (frob abs/single-float fabss abs nil single-reg single-float)
+  (frob abs/double-float fabss abs t double-reg double-float)
+  (frob %negate/single-float fnegs %negate nil single-reg single-float)
+  (frob %negate/double-float fnegs %negate t double-reg double-float))
+
+
+;;;; Comparison:
+
+(define-vop (float-compare)
+  (:args (x) (y))
+  (:conditional)
+  (:info target not-p)
+  (:variant-vars format yep nope)
+  (:policy :fast-safe)
+  (:note "inline float comparison")
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 3
+    (note-this-location vop :internal-error)
+    (ecase format
+      (:single (inst fcmps x y))
+      (:double (inst fcmpd x y)))
+    (inst fb (if not-p nope yep) target)
+    (inst nop)))
+
+(macrolet ((frob (name sc ptype)
+	     `(define-vop (,name float-compare)
+		(:args (x :scs (,sc))
+		       (y :scs (,sc)))
+		(:arg-types ,ptype ,ptype))))
+  (frob single-float-compare single-reg single-float)
+  (frob double-float-compare double-reg double-float))
+
+(macrolet ((frob (translate yep nope sname dname)
+	     `(progn
+		(define-vop (,sname single-float-compare)
+		  (:translate ,translate)
+		  (:variant :single ,yep ,nope))
+		(define-vop (,dname double-float-compare)
+		  (:translate ,translate)
+		  (:variant :double ,yep ,nope)))))
+  (frob < :l :ge </single-float </double-float)
+  (frob > :g :le >/single-float >/double-float)
+  (frob eql :eq :ne eql/single-float eql/double-float))
+
+
+;;;; Conversion:
+
+(macrolet ((frob (name translate inst to-sc to-type)
+	     `(define-vop (,name)
+		(:args (x :scs (signed-reg) :target temp
+			  :load-if (not (sc-is x signed-stack))))
+		(:temporary (:scs (single-stack)) temp)
+		(:results (y :scs (,to-sc)))
+		(:arg-types signed-num)
+		(:result-types ,to-type)
+		(:policy :fast-safe)
+		(:note "inline float coercion")
+		(:translate ,translate)
+		(:vop-var vop)
+		(:save-p :compute-only)
+		(:generator 5
+		  (let ((stack-tn
+			 (sc-case x
+			   (signed-reg
+			    (inst st x
+				  (current-nfp-tn vop)
+				  (* (tn-offset temp) vm:word-bytes))
+			    temp)
+			   (signed-stack
+			    x))))
+		    (inst ldf y
+			  (current-nfp-tn vop)
+			  (* (tn-offset stack-tn) vm:word-bytes))
+		    (note-this-location vop :internal-error)
+		    (inst ,inst y y))))))
+  (frob %single-float/signed %single-float fitos single-reg single-float)
+  (frob %double-float/signed %double-float fitod double-reg double-float))
+
+(macrolet ((frob (name translate inst from-sc from-type to-sc to-type)
+	     `(define-vop (,name)
+		(:args (x :scs (,from-sc)))
+		(:results (y :scs (,to-sc)))
+		(:arg-types ,from-type)
+		(:result-types ,to-type)
+		(:policy :fast-safe)
+		(:note "inline float coercion")
+		(:translate ,translate)
+		(:vop-var vop)
+		(:save-p :compute-only)
+		(:generator 2
+		  (note-this-location vop :internal-error)
+		  (inst ,inst y x)))))
+  (frob %single-float/double-float %single-float fdtos
+    double-reg double-float single-reg single-float)
+  (frob %double-float/single-float %double-float fstod
+    single-reg single-float double-reg double-float))
+
+(macrolet ((frob (name from-sc from-type inst)
+	     `(define-vop (,name)
+		(:args (x :scs (,from-sc) :target temp))
+		(:temporary (:from (:argument 0) :sc single-reg) temp)
+		(:temporary (:scs (signed-stack)) stack-temp)
+		(:results (y :scs (signed-reg)
+			     :load-if (not (sc-is y signed-stack))))
+		(:arg-types ,from-type)
+		(:result-types signed-num)
+		(:translate %unary-truncate)
+		(:policy :fast-safe)
+		(:note "inline float truncate")
+		(:vop-var vop)
+		(:save-p :compute-only)
+		(:generator 5
+		  (note-this-location vop :internal-error)
+		  (inst ,inst temp x)
+		  (sc-case y
+		    (signed-stack
+		     (inst stf temp (current-nfp-tn vop)
+			   (* (tn-offset y) vm:word-bytes)))
+		    (signed-reg
+		     (inst stf temp (current-nfp-tn vop)
+			   (* (tn-offset stack-temp) vm:word-bytes))
+		     (inst ld y (current-nfp-tn vop)
+			   (* (tn-offset stack-temp) vm:word-bytes))))))))
+  (frob %unary-truncate/single-float single-reg single-float fstoi)
+  (frob %unary-truncate/double-float double-reg double-float fdtoi))
+
+
+(define-vop (make-single-float)
+  (:args (bits :scs (signed-reg) :target res
+	       :load-if (not (sc-is bits signed-stack))))
+  (:results (res :scs (single-reg)
+		 :load-if (not (sc-is res single-stack))))
+  (:temporary (:scs (signed-reg) :from (:argument 0) :to (:result 0)) temp)
+  (:temporary (:scs (signed-stack)) stack-temp)
+  (:arg-types signed-num)
+  (:result-types single-float)
+  (:translate make-single-float)
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:generator 4
+    (sc-case bits
+      (signed-reg
+       (sc-case res
+	 (single-reg
+	  (inst st bits (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes))
+	  (inst ldf res (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes)))
+	 (single-stack
+	  (inst st bits (current-nfp-tn vop)
+		(* (tn-offset res) vm:word-bytes)))))
+      (signed-stack
+       (sc-case res
+	 (single-reg
+	  (inst ldf res (current-nfp-tn vop)
+		(* (tn-offset bits) vm:word-bytes)))
+	 (single-stack
+	  (unless (location= bits res)
+	    (inst ld temp (current-nfp-tn vop)
+		  (* (tn-offset bits) vm:word-bytes))
+	    (inst st temp (current-nfp-tn vop)
+		  (* (tn-offset res) vm:word-bytes)))))))))
+
+(define-vop (make-double-float)
+  (:args (hi-bits :scs (signed-reg))
+	 (lo-bits :scs (unsigned-reg)))
+  (:results (res :scs (double-reg)
+		 :load-if (not (sc-is res double-stack))))
+  (:temporary (:scs (double-stack)) temp)
+  (:arg-types signed-num unsigned-num)
+  (:result-types double-float)
+  (:translate make-double-float)
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:generator 2
+    (let ((stack-tn (sc-case res
+		      (double-stack res)
+		      (double-reg temp))))
+      (inst st hi-bits (current-nfp-tn vop)
+	    (* (tn-offset stack-tn) vm:word-bytes))
+      (inst st lo-bits (current-nfp-tn vop)
+	    (* (1+ (tn-offset stack-tn)) vm:word-bytes)))
+    (when (sc-is res double-reg)
+      (inst lddf res (current-nfp-tn vop)
+	    (* (tn-offset temp) vm:word-bytes)))))
+
+(define-vop (single-float-bits)
+  (:args (float :scs (single-reg descriptor-reg)
+		:load-if (not (sc-is float single-stack))))
+  (:results (bits :scs (signed-reg)
+		  :load-if (or (sc-is float descriptor-reg single-stack)
+			       (not (sc-is bits signed-stack)))))
+  (:temporary (:scs (signed-stack)) stack-temp)
+  (:arg-types single-float)
+  (:result-types signed-num)
+  (:translate single-float-bits)
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:generator 4
+    (sc-case bits
+      (signed-reg
+       (sc-case float
+	 (single-reg
+	  (inst stf float (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes))
+	  (inst ld bits (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes)))
+	 (single-stack
+	  (inst ld bits (current-nfp-tn vop)
+		(* (tn-offset float) vm:word-bytes)))
+	 (descriptor-reg
+	  (loadw bits float vm:single-float-value-slot vm:other-pointer-type))))
+      (signed-stack
+       (sc-case float
+	 (single-reg
+	  (inst stf float (current-nfp-tn vop)
+		(* (tn-offset bits) vm:word-bytes))))))))
+
+(define-vop (double-float-high-bits)
+  (:args (float :scs (double-reg descriptor-reg)
+		:load-if (not (sc-is float double-stack))))
+  (:results (hi-bits :scs (signed-reg)
+		     :load-if (or (sc-is float descriptor-reg double-stack)
+				  (not (sc-is hi-bits signed-stack)))))
+  (:temporary (:scs (signed-stack)) stack-temp)
+  (:arg-types double-float)
+  (:result-types signed-num)
+  (:translate double-float-high-bits)
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:generator 5
+    (sc-case hi-bits
+      (signed-reg
+       (sc-case float
+	 (double-reg
+	  (inst stf float (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes))
+	  (inst ld hi-bits (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes)))
+	 (double-stack
+	  (inst ld hi-bits (current-nfp-tn vop)
+		(* (tn-offset float) vm:word-bytes)))
+	 (descriptor-reg
+	  (loadw hi-bits float vm:double-float-value-slot
+		 vm:other-pointer-type))))
+      (signed-stack
+       (sc-case float
+	 (double-reg
+	  (inst stf float (current-nfp-tn vop)
+		(* (tn-offset hi-bits) vm:word-bytes))))))))
+
+(define-vop (double-float-low-bits)
+  (:args (float :scs (double-reg descriptor-reg)
+		:load-if (not (sc-is float double-stack))))
+  (:results (lo-bits :scs (unsigned-reg)
+		     :load-if (or (sc-is float descriptor-reg double-stack)
+				  (not (sc-is lo-bits unsigned-stack)))))
+  (:temporary (:scs (unsigned-stack)) stack-temp)
+  (:arg-types double-float)
+  (:result-types unsigned-num)
+  (:translate double-float-low-bits)
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:generator 5
+    (sc-case lo-bits
+      (unsigned-reg
+       (sc-case float
+	 (double-reg
+	  (inst stf-odd float (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes))
+	  (inst ld lo-bits (current-nfp-tn vop)
+		(* (tn-offset stack-temp) vm:word-bytes)))
+	 (double-stack
+	  (inst ld lo-bits (current-nfp-tn vop)
+		(* (tn-offset float) vm:word-bytes)))
+	 (descriptor-reg
+	  (loadw lo-bits float (1+ vm:double-float-value-slot)
+		 vm:other-pointer-type))))
+      (unsigned-stack
+       (sc-case float
+	 (double-reg
+	  (inst stf-odd float (current-nfp-tn vop)
+		(* (tn-offset lo-bits) vm:word-bytes))))))))
+
+
+;;;; SAP accessors/setters
+
+(define-vop (sap-ref-single sap-ref)
+  (:translate sap-ref-single)
+  (:results (result :scs (single-reg)))
+  (:result-types single-float)
+  (:variant :single nil))
+
+(define-vop (sap-set-single sap-set)
+  (:translate %set-sap-ref-single)
+  (:args (sap :scs (sap-reg))
+	 (offset :scs (any-reg signed-reg zero immediate))
+	 (value :scs (single-reg) :target result))
+  (:arg-types system-area-pointer positive-fixnum single-float)
+  (:results (result :scs (single-reg)))
+  (:result-types single-float)
+  (:variant :single))
+
+(define-vop (sap-ref-double sap-ref)
+  (:translate sap-ref-double)
+  (:results (result :scs (double-reg)))
+  (:result-types double-float)
+  (:variant :double nil))
+
+(define-vop (sap-set-double sap-set)
+  (:translate %set-sap-ref-double)
+  (:args (sap :scs (sap-reg))
+	 (offset :scs (signed-reg any-reg zero immediate))
+	 (value :scs (double-reg) :target result))
+  (:arg-types system-area-pointer positive-fixnum double-float)
+  (:results (result :scs (double-reg)))
+  (:result-types double-float)
+  (:variant :double))
+
+
+;;;; Float mode hackery:
+
+#|
+
+(deftype float-modes () '(unsigned-byte 24))
+(defknown floating-point-modes () float-modes (flushable))
+(defknown ((setf floating-point-modes)) (float-modes)
+  float-modes)
+
+(define-vop (floating-point-modes)
+  (:results (res :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:translate floating-point-modes)
+  (:policy :fast-safe)
+  (:generator 3
+    (inst cfc1 res 31)
+    (inst nop)))
+
+(define-vop (set-floating-point-modes)
+  (:args (new :scs (unsigned-reg) :target res))
+  (:results (res :scs (unsigned-reg)))
+  (:arg-types unsigned-num)
+  (:result-types unsigned-num)
+  (:translate (setf floating-point-modes))
+  (:policy :fast-safe)
+  (:generator 3
+    (inst ctc1 res 31)
+    (move res new)))
+
+|#
diff --git a/compiler/sparc/insts.lisp b/compiler/sparc/insts.lisp
new file mode 100644
index 000000000..ea62df0b7
--- /dev/null
+++ b/compiler/sparc/insts.lisp
@@ -0,0 +1,612 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/insts.lisp,v 1.1 1990/11/30 17:04:46 wlott Exp $
+;;;
+;;; Description of the SPARC architecture.
+;;;
+;;; Written by William Lott
+;;;
+
+(in-package "SPARC")
+(use-package "ASSEM")
+(use-package "EXT")
+(use-package "C")
+
+
+
+;;;; Formats:
+
+(define-format (format-1 32)
+  (op (byte 2 30) :default 1)
+  (disp (byte 30 0)))
+
+
+(define-format (format-2-immed 32)
+  (op (byte 2 30) :default 0)
+  (rd (byte 5 25))
+  (op2 (byte 3 22))
+  (immed (byte 22 0)))
+
+(define-format (format-2-branch 32)
+  (op (byte 2 30) :default 0)
+  (a (byte 1 29))
+  (cond (byte 4 25))
+  (op2 (byte 3 22))
+  (disp (byte 22 0)))
+
+(define-format (format-2-unimp 32)
+  (op (byte 2 30) :default 0)
+  (ignore (byte 5 25) :default 0)
+  (op2 (byte 3 22) :default 0)
+  (data (byte 22 0)))
+
+
+(define-format (format-3-reg 32)
+  (op (byte 2 30))
+  (rd (byte 5 25))
+  (op3 (byte 6 19))
+  (rs1 (byte 5 14))
+  (i (byte 1 13) :default 0)
+  (asi (byte 8 5) :default 0)
+  (rs2 (byte 5 0)))
+
+(define-format (format-3-immed 32)
+  (op (byte 2 30))
+  (rd (byte 5 25))
+  (op3 (byte 6 19))
+  (rs1 (byte 5 14))
+  (i (byte 1 13) :default 1)
+  (immed (byte 13 0)))
+
+(define-format (format-3-fpop 32)
+  (op (byte 2 30))
+  (rd (byte 5 25))
+  (op3 (byte 6 19))
+  (rs1 (byte 5 14))
+  (opf (byte 9 5))
+  (rs2 (byte 5 0)))
+
+
+
+;;;; Special argument types and fixups.
+
+(define-argument-type reg
+  :type '(satisfies (lambda (object)
+		      (and (tn-p object)
+			   (or (eq (sc-name (tn-sc object)) 'null)
+			       (eq (sc-name (tn-sc object)) 'zero)
+			       (eq (sb-name (sc-sb (tn-sc object)))
+				   'registers)))))
+  :function (lambda (tn)
+	      (case (sc-name (tn-sc tn))
+		(null null-offset)
+		(zero 0)
+		(t (tn-offset tn)))))
+
+
+(define-argument-type fp-reg
+  :type '(satisfies (lambda (object)
+		      (and (tn-p object)
+			   (eq (sb-name (sc-sb (tn-sc object)))
+			       'float-registers))))
+  :function tn-offset)
+
+(define-argument-type odd-fp-reg
+  :type '(satisfies (lambda (object)
+		      (and (tn-p object)
+			   (eq (sb-name (sc-sb (tn-sc object)))
+			       'float-registers))))
+  :function (lambda (tn) (1+ (tn-offset tn))))
+
+
+(define-argument-type relative-label
+  :type 'label
+  :function (lambda (label)
+	      (ash (- (label-position label) *current-position*) -2)))
+
+
+(eval-when (compile eval load)
+  (defconstant branch-conditions
+    '(:f :eq :le :lt :leu :ltu :n :vs :t :ne :gt :ge :gtu :geu :p :vc)))
+
+(define-argument-type branch-condition
+  :type '(member . #.branch-conditions)
+  :function (lambda (cond) (position cond branch-conditions)))
+
+
+(eval-when (compile eval load)
+  (defconstant branch-fp-conditions
+    '(:f :ne :lg :ul :l :ug :g :u :t :eq :ue :ge :uge :le :ule :o)))
+
+
+(define-argument-type branch-fp-condition
+  :type '(member . #.branch-fp-conditions)
+  :function (lambda (fp-cond) (position fp-cond branch-fp-conditions)))
+
+
+(define-fixup-type :call)
+(define-fixup-type :sethi)
+(define-fixup-type :add)
+
+
+
+;;;; Instructions.
+
+
+
+(eval-when (compile eval)
+
+(defmacro define-f3-inst (name op op3 &key (dest-kind 'reg) fixup load-store)
+  `(define-instruction (,name)
+     (format-3-reg (op :constant ,op)
+		   (rd :argument ,dest-kind)
+		   (op3 :constant ,op3)
+		   (rs1 :argument reg)
+		   (rs2 :argument reg))
+     ,(if (not load-store)
+	  `(format-3-reg (op :constant ,op)
+			 (rd :argument ,dest-kind)
+			 (op3 :constant ,op3)
+			 (rs1 :same-as rd)
+			 (rs2 :argument reg))
+	  `(format-3-immed (op :constant ,op)
+			   (rd :argument ,dest-kind)
+			   (op3 :constant ,op3)
+			   (rs1 :argument reg)
+			   (immed :constant 0)))
+     (format-3-immed (op :constant ,op)
+		     (rd :argument ,dest-kind)
+		     (op3 :constant ,op3)
+		     (rs1 :argument reg)
+		     (immed :argument (signed-byte 13)))
+     (format-3-immed (op :constant ,op)
+		     (rd :argument ,dest-kind)
+		     (op3 :constant ,op3)
+		     (rs1 :same-as rd)
+		     (immed :argument (signed-byte 13)))
+     ,@(when (or load-store fixup)
+	 `((format-3-immed (op :constant ,op)
+			   (rd :argument ,dest-kind)
+			   (op3 :constant ,op3)
+			   (rs1 :argument reg)
+			   (immed :argument add-fixup))
+	   (format-3-immed (op :constant ,op)
+			   (rd :argument ,dest-kind)
+			   (op3 :constant ,op3)
+			   (rs1 :same-as rd)
+			   (immed :argument add-fixup))))))
+
+(setf (macro-function 'define-f3-inst)
+      (compile nil (function-lambda-expression
+		    (macro-function 'define-f3-inst))))
+
+) ; eval-when
+
+(define-f3-inst ldsb #b11 #b001001 :load-store t)
+(define-f3-inst ldsh #b11 #b001010 :load-store t)
+(define-f3-inst ldub #b11 #b000001 :load-store t)
+(define-f3-inst lduh #b11 #b000010 :load-store t)
+(define-f3-inst ld #b11 #b000000 :load-store t)
+(define-f3-inst ldd #b11 #b000011 :load-store t)
+
+(define-f3-inst ldf #b11 #b100000 :dest-kind fp-reg :load-store t)
+(define-f3-inst ldf-odd #b11 #b100000 :dest-kind odd-fp-reg :load-store t)
+(define-f3-inst lddf #b11 #b100011 :dest-kind fp-reg :load-store t)
+
+(define-f3-inst stb #b11 #b000101 :load-store t)
+(define-f3-inst sth #b11 #b000110 :load-store t)
+(define-f3-inst st #b11 #b000100 :load-store t)
+(define-f3-inst std #b11 #b000111 :load-store t)
+
+(define-f3-inst stf #b11 #b100100 :dest-kind fp-reg :load-store t)
+(define-f3-inst stf-odd #b11 #b100100 :dest-kind odd-fp-reg :load-store t)
+(define-f3-inst stdf #b11 #b100111 :dest-kind fp-reg :load-store t)
+
+(define-f3-inst ldstub #b11 #b001101 :load-store t)
+(define-f3-inst swap #b11 #b001111 :load-store t)
+
+
+
+(define-f3-inst add #b10 #b000000 :fixup t)
+(define-f3-inst addcc #b10 #b010000)
+(define-f3-inst addx #b10 #b001000)
+(define-f3-inst addxcc #b10 #b011000)
+
+(define-f3-inst taddcc #b10 #b100000)
+(define-f3-inst taddcctv #b10 #b100010)
+
+(define-f3-inst sub #b10 #b000100)
+(define-f3-inst subcc #b10 #b010100)
+(define-f3-inst subx #b10 #b001100)
+(define-f3-inst subxcc #b10 #b011100)
+
+(define-f3-inst tsubcc #b10 #b100001)
+(define-f3-inst tsubcctv #b10 #b100011)
+
+(define-f3-inst mulscc #b10 #b100100)
+
+(define-f3-inst and #b10 #b000001)
+(define-f3-inst andcc #b10 #b010001)
+(define-f3-inst andn #b10 #b000101)
+(define-f3-inst andncc #b10 #b010101)
+(define-f3-inst or #b10 #b000010)
+(define-f3-inst orcc #b10 #b010010)
+(define-f3-inst orn #b10 #b000110)
+(define-f3-inst orncc #b10 #b010110)
+(define-f3-inst xor #b10 #b000011)
+(define-f3-inst xorcc #b10 #b010011)
+(define-f3-inst xnor #b10 #b000111)
+(define-f3-inst xnorcc #b10 #b010111)
+
+(define-f3-inst sll #b10 #b100101)
+(define-f3-inst srl #b10 #b100110)
+(define-f3-inst sra #b10 #b100111)
+
+(define-instruction (sethi)
+  (format-2-immed (rd :argument reg)
+		  (op2 :constant #b100)
+		  (immed :argument (or (unsigned-byte 22) (signed-byte 22))))
+  (format-2-immed (rd :argument reg)
+		  (op2 :constant #b100)
+		  (immed :argument sethi-fixup)))
+
+(define-f3-inst save #b10 #b111100)
+(define-f3-inst restore #b10 #b111101)
+
+(define-instruction (b)
+  (format-2-branch (op :constant #b00)
+		   (a :constant 0)
+		   (cond :argument branch-condition)
+		   (op2 :constant #b010)
+		   (disp :argument relative-label))
+  (format-2-branch (op :constant #b00)
+		   (a :constant 0)
+		   (cond :constant #b1000)
+		   (op2 :constant #b010)
+		   (disp :argument relative-label)))
+
+(define-instruction (ba)
+  (format-2-branch (op :constant #b00)
+		   (a :constant 1)
+		   (cond :argument branch-condition)
+		   (op2 :constant #b010)
+		   (disp :argument relative-label))
+  (format-2-branch (op :constant #b00)
+		   (a :constant 1)
+		   (cond :constant #b1000)
+		   (op2 :constant #b010)
+		   (disp :argument relative-label)))
+
+(define-instruction (fb)
+  (format-2-branch (op :constant #b00)
+		   (a :constant 0)
+		   (cond :argument branch-fp-condition)
+		   (op2 :constant #b110)
+		   (disp :argument relative-label)))
+
+
+(define-instruction (jal)
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b111000)
+		(rs1 :argument reg)
+		(rs2 :argument reg))
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b111000)
+		(rs1 :constant 0)
+		(rs2 :argument reg))
+  (format-3-immed (op :constant #b10)
+		  (rd :argument reg)
+		  (op3 :constant #b111000)
+		  (rs1 :argument reg)
+		  (immed :argument (signed-byte 13))))
+
+(define-instruction (j)
+  (format-3-reg (op :constant #b10)
+		(rd :constant 0)
+		(op3 :constant #b111000)
+		(rs1 :argument reg)
+		(rs2 :argument reg))
+  (format-3-reg (op :constant #b10)
+		(rd :constant 0)
+		(op3 :constant #b111000)
+		(rs1 :argument reg)
+		(rs2 :constant 0))
+  (format-3-immed (op :constant #b10)
+		  (rd :constant 0)
+		  (op3 :constant #b111000)
+		  (rs1 :argument reg)
+		  (immed :argument (signed-byte 13))))
+
+(define-instruction (rdy)
+  (format-3-immed (op :constant #b10)
+		  (rd :argument reg)
+		  (op3 :constant #b101000)
+		  (rs1 :constant 0)
+		  (immed :constant 0)))
+
+(define-instruction (wry)
+  (format-3-reg (op :constant #b10)
+		(rd :constant 0)
+		(op3 :constant #b110000)
+		(rs1 :argument reg)
+		(rs2 :argument reg))
+  (format-3-reg (op :constant #b10)
+		(rd :constant 0)
+		(op3 :constant #b110000)
+		(rs1 :argument reg)
+		(rs2 :constant 0))
+  (format-3-immed (op :constant #b10)
+		  (rd :constant 0)
+		  (op3 :constant #b110000)
+		  (rs1 :argument reg)
+		  (immed :argument (signed-byte 13))))
+
+(define-instruction (unimp)
+  (format-2-unimp (data :argument (unsigned-byte 22))))
+
+
+(eval-when (compile eval)
+
+(defmacro define-unary-fp-inst (name opf &optional odd)
+  (let ((kind (if odd 'odd-fp-reg 'fp-reg)))
+    `(define-instruction (,name)
+       (format-3-fpop (op :constant #b10)
+		      (rd :argument ,kind)
+		      (op3 :constant #b110100)
+		      (rs1 :argument ,kind)
+		      (opf :constant ,opf)
+		      (rs2 :argument ,kind))
+       (format-3-fpop (op :constant #b10)
+		      (rd :argument ,kind)
+		      (op3 :constant #b110100)
+		      (rs1 :same-as rd)
+		      (opf :constant ,opf)
+		      (rs2 :argument ,kind)))))
+
+(defmacro define-binary-fp-inst (name opf &optional (op3 #b110100))
+  `(define-instruction (,name)
+     (format-3-fpop (op :constant #b10)
+		    (rd :argument fp-reg)
+		    (op3 :constant ,op3)
+		    (rs1 :argument fp-reg)
+		    (opf :constant ,opf)
+		    (rs2 :argument fp-reg))
+     (format-3-fpop (op :constant #b10)
+		    (rd :argument fp-reg)
+		    (op3 :constant ,op3)
+		    (rs1 :same-as rd)
+		    (opf :constant ,opf)
+		    (rs2 :argument fp-reg))))
+
+); eval-when (compile eval)
+
+(define-unary-fp-inst fitos #b011000100)
+(define-unary-fp-inst fitod #b011001000)
+(define-unary-fp-inst fitox #b011001100)
+
+(define-unary-fp-inst fstoir #b011000001)
+(define-unary-fp-inst fdtoir #b011000010)
+(define-unary-fp-inst fxtoir #b011000011)
+
+(define-unary-fp-inst fstoi #b011010001)
+(define-unary-fp-inst fdtoi #b011010010)
+(define-unary-fp-inst fxtoi #b011010011)
+
+(define-unary-fp-inst fstod #b011001001)
+(define-unary-fp-inst fstox #b011001101)
+(define-unary-fp-inst fdtos #b011000110)
+(define-unary-fp-inst fdtox #b011001110)
+(define-unary-fp-inst fxtos #b011000111)
+(define-unary-fp-inst fxtod #b011001011)
+
+(define-unary-fp-inst fmovs #b000000001)
+(define-unary-fp-inst fmovs-odd #b000000001 t)
+(define-unary-fp-inst fnegs #b000000101)
+(define-unary-fp-inst fabss #b000001001)
+
+(define-unary-fp-inst fsqrts #b000101001)
+(define-unary-fp-inst fsqrtd #b000101010)
+(define-unary-fp-inst fsqrtx #b000101011)
+
+
+(define-binary-fp-inst fadds #b001000001)
+(define-binary-fp-inst faddd #b001000010)
+(define-binary-fp-inst faddx #b001000011)
+(define-binary-fp-inst fsubs #b001000101)
+(define-binary-fp-inst fsubd #b001000110)
+(define-binary-fp-inst fsubx #b001000111)
+
+(define-binary-fp-inst fmuls #b001001001)
+(define-binary-fp-inst fmuld #b001001010)
+(define-binary-fp-inst fmulx #b001001011)
+(define-binary-fp-inst fdivs #b001001101)
+(define-binary-fp-inst fdivd #b001001110)
+(define-binary-fp-inst fdivx #b001001111)
+
+(define-binary-fp-inst fcmps #b001010001 #b110101)
+(define-binary-fp-inst fcmpd #b001010010 #b110101)
+(define-binary-fp-inst fcmpx #b001010011 #b110101)
+(define-binary-fp-inst fcmpes #b001010101 #b110101)
+(define-binary-fp-inst fcmped #b001010110 #b110101)
+(define-binary-fp-inst fcmpex #b001010111 #b110101)
+
+
+
+
+;;;; Pseudo-instructions, etc.
+
+(define-pseudo-instruction li 64 (reg value)
+  (etypecase value
+    ((signed-byte 13)
+     (inst add reg zero-tn value))
+    ((or (signed-byte 32) (unsigned-byte 32))
+     (let ((hi (ldb (byte 22 10) value))
+	   (lo (ldb (byte 10 0) value)))
+       (inst sethi reg hi)
+       (unless (zerop lo)
+	 (inst add reg lo))))
+    (fixup
+     (inst sethi reg value)
+     (inst add reg value))))
+
+(define-instruction (nop)
+  (format-2-immed (rd :constant 0)
+		  (op2 :constant #b100)
+		  (immed :constant 0)))
+
+(define-instruction (cmp)
+  (format-3-reg (op :constant #b10)
+		(rd :constant 0)
+		(op3 :constant #b010100)
+		(rs1 :argument reg)
+		(rs2 :argument reg))
+  (format-3-reg (op :constant #b10)
+		(rd :constant 0)
+		(op3 :constant #b010100)
+		(rs1 :argument reg)
+		(rs2 :constant 0))
+  (format-3-immed (op :constant #b10)
+		  (rd :constant 0)
+		  (op3 :constant #b010100)
+		  (rs1 :argument reg)
+		  (immed :argument (signed-byte 13))))
+
+(define-instruction (not)
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b000111)
+		(rs1 :argument reg)
+		(rs2 :constant 0))
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b000111)
+		(rs1 :same-as rd)
+		(rs2 :constant 0)))
+
+(define-instruction (neg)
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b000100)
+		(rs1 :constant 0)
+		(rs2 :argument reg))
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b000100)
+		(rs1 :constant 0)
+		(rs2 :same-as rd)))
+
+(define-instruction (move)
+  (format-3-reg (op :constant #b10)
+		(rd :argument reg)
+		(op3 :constant #b000010)
+		(rs1 :constant 0)
+		(rs2 :argument reg)))
+
+
+;;; Instructions for dumping data and header objects.
+
+(define-format (word-format 32)
+  (data (byte 32 0)))
+(define-instruction (word)
+  (word-format (data :argument (or (unsigned-byte 32) (signed-byte 32)))))
+
+(define-format (short-format 16)
+  (data (byte 16 0)))
+(define-instruction (short)
+  (short-format (data :argument (or (unsigned-byte 16) (signed-byte 16)))))
+
+(define-format (byte-format 8)
+  (data (byte 8 0)))
+(define-instruction (byte)
+  (byte-format (data :argument (or (unsigned-byte 8) (signed-byte 8)))))
+
+
+(define-format (header-object 32)
+  (type (byte 8 0))
+  (data (byte 24 8)
+	:default 0
+	:function (lambda (ignore)
+		    (declare (ignore ignore))
+		    (ash (+ *current-position* (component-header-length))
+			 (- vm:word-shift)))))
+
+(define-instruction (function-header-word)
+  (header-object (type :constant vm:function-header-type)))
+
+(define-instruction (lra-header-word)
+  (header-object (type :constant vm:return-pc-header-type)))
+
+
+
+;;;; Instructions for converting between code objects, functions, and lras
+
+(eval-when (compile eval)
+
+(defmacro define-compute-instruction (name calculation)
+  (let ((add (symbolicate name "-ADD"))
+	(sethi (symbolicate name "-SETHI"))
+	(or (symbolicate name "-OR")))
+    `(progn
+       (define-instruction (,add)
+	 (format-3-immed
+	  (op :constant #b10)
+	  (rd :argument reg)
+	  (op3 :constant #b000000)
+	  (rs1 :argument reg)
+	  (immed :argument label
+		 :function (lambda (label)
+			     (let ((result ,calculation))
+			       (assert (typep result '(signed-byte 13)))
+			       result)))))
+       (define-instruction (,sethi)
+	 (format-2-immed (rd :argument reg)
+			 (op2 :constant #b100)
+			 (immed :argument label
+				:function (lambda (label)
+					    (ash ,calculation -10)))))
+       (define-instruction (,or)
+	 (format-3-immed (op :constant #b10)
+			 (rd :argument reg)
+			 (op3 :constant #b000010)
+			 (rs1 :same-as rd)
+			 (immed :argument label
+				:function (lambda (label)
+					    (logand ,calculation
+						    (1- (ash 1 10)))))))
+       (define-pseudo-instruction ,name 96 (dst src label temp)
+	 (cond ((typep ,calculation '(signed-byte 13))
+		(inst ,add dst src label))
+	       (t
+		(inst ,sethi temp label)
+		(inst ,or temp label)
+		(inst add dst src temp)))))))
+
+); eval-when (compile eval)
+
+
+;; code = fn - fn-ptr-type - header - label-offset + other-pointer-tag
+(define-compute-instruction compute-code-from-fn
+			    (- vm:other-pointer-type
+			       vm:function-pointer-type
+			       (label-position label)
+			       (component-header-length)))
+
+;; code = lra - other-pointer-tag - header - label-offset + other-pointer-tag
+(define-compute-instruction compute-code-from-lra
+			    (- (+ (label-position label)
+				  (component-header-length))))
+
+;; lra = code + other-pointer-tag + header + label-offset - other-pointer-tag
+(define-compute-instruction compute-lra-from-code
+			    (+ (label-position label)
+			       (component-header-length)))
+
diff --git a/compiler/sparc/macros.lisp b/compiler/sparc/macros.lisp
new file mode 100644
index 000000000..fc03e12c7
--- /dev/null
+++ b/compiler/sparc/macros.lisp
@@ -0,0 +1,458 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/macros.lisp,v 1.1 1990/11/30 17:04:49 wlott Exp $
+;;;
+;;; This file contains various useful macros for generating SPARC code.
+;;;
+;;; Written by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+
+;;; Instruction-like macros.
+
+(defmacro move (dst src)
+  "Move SRC into DST unless they are location=."
+  (once-only ((n-dst dst)
+	      (n-src src))
+    `(unless (location= ,n-dst ,n-src)
+       (inst move ,n-dst ,n-src))))
+
+(macrolet
+    ((frob (op inst shift)
+       `(defmacro ,op (object base &optional (offset 0) (lowtag 0))
+	  `(inst ,',inst ,object ,base (- (ash ,offset ,,shift) ,lowtag)))))
+  (frob loadw ld word-shift)
+  (frob storew st word-shift))
+
+(defmacro load-symbol (reg symbol)
+  `(inst add ,reg null-tn (static-symbol-offset ,symbol)))
+
+(macrolet
+    ((frob (slot)
+       (let ((loader (intern (concatenate 'simple-string
+					  "LOAD-SYMBOL-"
+					  (string slot))))
+	     (storer (intern (concatenate 'simple-string
+					  "STORE-SYMBOL-"
+					  (string slot))))
+	     (offset (intern (concatenate 'simple-string
+					  "SYMBOL-"
+					  (string slot)
+					  "-SLOT")
+			     (find-package "VM"))))
+	 `(progn
+	    (defmacro ,loader (reg symbol)
+	      `(inst ld ,reg null-tn
+		     (+ (static-symbol-offset ',symbol)
+			(ash ,',offset word-shift)
+			(- other-pointer-type))))
+	    (defmacro ,storer (reg symbol)
+	      `(inst st ,reg null-tn
+		     (+ (static-symbol-offset ',symbol)
+			(ash ,',offset word-shift)
+			(- other-pointer-type))))))))
+  (frob value)
+  (frob function))
+
+(defmacro load-type (target source &optional (offset 0))
+  "Loads the type bits of a pointer into target independent of
+  byte-ordering issues."
+  (once-only ((n-target target)
+	      (n-source source)
+	      (n-offset offset))
+    (ecase (backend-byte-order *target-backend*)
+      (:little-endian
+       `(inst ldub ,n-target ,n-source ,n-offset))
+      (:big-endian
+       `(inst ldub ,n-target ,n-source (+ ,n-offset 3))))))
+
+;;; Macros to handle the fact that we cannot use the machine native call and
+;;; return instructions. 
+
+(defmacro lisp-jump (function)
+  "Jump to the lisp function FUNCTION.  LIP is an interior-reg temporary."
+  `(progn
+     (inst j ,function (- (ash function-header-code-offset
+			       word-shift)
+			  function-pointer-type))
+     (move code-tn ,function)))
+
+(defmacro lisp-return (return-pc &key (offset 0) (frob-code t))
+  "Return to RETURN-PC."
+  `(progn
+     (inst j ,return-pc
+	   (- (* (1+ ,offset) word-bytes) other-pointer-type))
+     ,(if frob-code
+	  `(move code-tn ,return-pc)
+	  '(inst nop))))
+
+(defmacro emit-return-pc (label)
+  "Emit a return-pc header word.  LABEL is the label to use for this return-pc."
+  `(progn
+     (align lowtag-bits)
+     (emit-label ,label)
+     (inst lra-header-word)))
+
+
+
+;;;; Stack TN's
+
+;;; Load-Stack-TN, Store-Stack-TN  --  Interface
+;;;
+;;;    Move a stack TN to a register and vice-versa.
+;;;
+(defmacro load-stack-tn (reg stack)
+  `(let ((reg ,reg)
+	 (stack ,stack))
+     (let ((offset (tn-offset stack)))
+       (sc-case stack
+	 ((control-stack)
+	  (loadw reg cfp-tn offset))))))
+
+(defmacro store-stack-tn (stack reg)
+  `(let ((stack ,stack)
+	 (reg ,reg))
+     (let ((offset (tn-offset stack)))
+       (sc-case stack
+	 ((control-stack)
+	  (storew reg cfp-tn offset))))))
+
+
+;;; MAYBE-LOAD-STACK-TN  --  Interface
+;;;
+(defmacro maybe-load-stack-tn (reg reg-or-stack)
+  "Move the TN Reg-Or-Stack into Reg if it isn't already there."
+  (once-only ((n-reg reg)
+	      (n-stack reg-or-stack))
+    `(sc-case ,n-reg
+       ((any-reg descriptor-reg)
+	(sc-case ,n-stack
+	  ((any-reg descriptor-reg)
+	   (move ,n-reg ,n-stack))
+	  ((control-stack)
+	   (loadw ,n-reg cfp-tn (tn-offset ,n-stack))))))))
+
+
+;;;; Storage allocation:
+
+(defmacro with-fixed-allocation ((result-tn temp-tn type-code size)
+				 &body body)
+  "Do stuff to allocate an other-pointer object of fixed Size with a single
+  word header having the specified Type-Code.  The result is placed in
+  Result-TN, and Temp-TN is a non-descriptor temp (which may be randomly used
+  by the body.)  The body is placed inside the PSEUDO-ATOMIC, and presumably
+  initializes the object."
+  `(pseudo-atomic (,temp-tn)
+     (inst add ,result-tn alloc-tn other-pointer-type)
+     (inst add alloc-tn alloc-tn (pad-data-block ,size))
+     (inst li ,temp-tn (logior (ash (1- ,size) type-bits) ,type-code))
+     (storew ,temp-tn ,result-tn 0 other-pointer-type)
+     ,@body))
+
+
+
+;;;; Type testing noise.
+
+;;; GEN-RANGE-TEST -- internal
+;;;
+;;; Generate code that branches to TARGET iff REG contains one of VALUES.
+;;; If NOT-P is true, invert the test.  Jumping to NOT-TARGET is the same
+;;; as falling out the bottom.
+;;; 
+(defun gen-range-test (reg target not-target not-p min seperation max values)
+  (let ((tests nil)
+	(start nil)
+	(end nil)
+	(insts nil))
+    (multiple-value-bind (equal less-or-equal greater-or-equal label)
+			 (if not-p
+			     (values :ne :gt :lt not-target)
+			     (values :eq :le :ge target))
+      (flet ((emit-test ()
+	       (if (= start end)
+		   (push start tests)
+		   (push (cons start end) tests))))
+	(dolist (value values)
+	  (cond ((< value min)
+		 (error "~S is less than the specified minimum of ~S"
+			value min))
+		((> value max)
+		 (error "~S is greater than the specified maximum of ~S"
+			value max))
+		((not (zerop (rem (- value min) seperation)))
+		 (error "~S isn't an even multiple of ~S from ~S"
+			value seperation min))
+		((null start)
+		 (setf start value))
+		((> value (+ end seperation))
+		 (emit-test)
+		 (setf start value)))
+	  (setf end value))
+	(emit-test))
+      (macrolet ((inst (name &rest args)
+		       `(push (list 'inst ',name ,@args) insts)))
+	(do ((remaining (nreverse tests) (cdr remaining)))
+	    ((null remaining))
+	  (let ((test (car remaining))
+		(last (null (cdr remaining))))
+	    (if (atom test)
+		(progn
+		  (inst cmp reg test)
+		  (if last
+		      (inst b equal target)
+		      (inst b :eq label)))
+		(let ((start (car test))
+		      (end (cdr test)))
+		  (cond ((and (= start min) (= end max))
+			 (warn "The values ~S cover the entire range from ~
+			 ~S to ~S [step ~S]."
+			       values min max seperation)
+			 (push `(unless ,not-p (inst b ,target)) insts))
+			((= start min)
+			 (inst cmp reg end)
+			 (if last
+			     (inst b less-or-equal target)
+			     (inst b :le label)))
+			((= end max)
+			 (inst cmp reg start)
+			 (if last
+			     (inst b greater-or-equal target)
+			     (inst b :ge label)))
+			(t
+			 (inst cmp reg start)
+			 (inst b :lt (if not-p target not-target))
+			 (inst cmp reg end)
+			 (if last
+			     (inst b less-or-equal target)
+			     (inst b :le label))))))))))
+    (nreverse insts)))
+
+(defun gen-other-immediate-test (reg target not-target not-p values)
+  (gen-range-test reg target not-target not-p
+		  (+ other-immediate-0-type lowtag-limit)
+		  (- other-immediate-1-type other-immediate-0-type)
+		  (ash 1 type-bits)
+		  values))
+
+
+(defun test-type-aux (reg temp target not-target not-p lowtags immed hdrs)
+  (let* ((fixnump (and (member even-fixnum-type lowtags :test #'eql)
+		       (member odd-fixnum-type lowtags :test #'eql)))
+	 (lowtags (sort (if fixnump
+			    (delete even-fixnum-type
+				    (remove odd-fixnum-type lowtags
+					    :test #'eql)
+				    :test #'eql)
+			    (copy-list lowtags))
+			#'<))
+	 (hdrs (sort (copy-list hdrs) #'<))
+	 (immed (sort (copy-list immed) #'<)))
+    (append
+     (when immed
+       `((inst and ,temp ,reg type-mask)
+	 ,@(if (or fixnump lowtags hdrs)
+	       (let ((fall-through (gensym)))
+		 `((let (,fall-through (gen-label))
+		     ,@(gen-other-immediate-test
+			temp (if not-p not-target target)
+			fall-through nil immed)
+		     (emit-label ,fall-through))))
+	       (gen-other-immediate-test temp target not-target not-p immed))))
+     (when fixnump
+       `((inst andcc zero-tn ,reg 3)
+	 ,(if (or lowtags hdrs)
+	      `(inst b :eq ,(if not-p not-target target))
+	      `(inst b ,(if not-p :ne :eq) ,target))))
+     (when (or lowtags hdrs)
+       `((inst and ,temp ,reg lowtag-mask)))
+     (when lowtags
+       (if hdrs
+	   (let ((fall-through (gensym)))
+	     `((let ((,fall-through (gen-label)))
+		 ,@(gen-range-test temp (if not-p not-target target)
+				   fall-through nil
+				   0 1 (1- lowtag-limit) lowtags)
+		 (emit-label ,fall-through))))
+	   (gen-range-test temp target not-target not-p 0 1
+			   (1- lowtag-limit) lowtags)))
+     (when hdrs
+       `((inst cmp ,temp other-pointer-type)
+	 (inst b :ne ,(if not-p target not-target))
+	 (inst nop)
+	 (load-type ,temp ,reg (- other-pointer-type))
+	 ,@(gen-other-immediate-test temp target not-target not-p hdrs))))))
+
+(defconstant immediate-types
+  (list base-character-type unbound-marker-type))
+
+(defmacro test-type (register temp target not-p &rest type-codes)
+  (let* ((type-codes (mapcar #'eval type-codes))
+	 (lowtags (remove lowtag-limit type-codes :test #'<))
+	 (extended (remove lowtag-limit type-codes :test #'>))
+	 (immediates (intersection extended immediate-types :test #'eql))
+	 (headers (set-difference extended immediate-types :test #'eql)))
+    (unless type-codes
+      (error "Must supply at least on type for test-type."))
+    (when (and headers (member other-pointer-type lowtags))
+      (warn "OTHER-POINTER-TYPE supersedes the use of ~S" headers)
+      (setf headers nil))
+    (when (and immediates
+	       (or (member other-immediate-0-type lowtags)
+		   (member other-immediate-1-type lowtags)))
+      (warn "OTHER-IMMEDIATE-n-TYPE supersedes the use of ~S" immediates)
+      (setf immediates nil))
+    (let ((n-reg (gensym))
+	  (n-temp (gensym))
+	  (n-target (gensym))
+	  (not-target (gensym)))
+      `(let ((,n-reg ,register)
+	     (,n-temp ,temp)
+	     (,n-target ,target)
+	     (,not-target (gen-label)))
+	 (declare (ignorable ,n-temp))
+	 ,@(if (constantp not-p)
+	       (test-type-aux n-reg n-temp n-target not-target
+			      (eval not-p) lowtags immediates headers)
+	       `((cond (,not-p
+			,@(test-type-aux n-reg n-temp n-target not-target t
+					 lowtags immediates headers))
+		       (t
+			,@(test-type-aux n-reg n-temp n-target not-target nil
+					 lowtags immediates headers)))))
+	 (inst nop)
+	 (emit-label ,not-target)))))
+
+
+;;;; Error Code
+
+(defvar *adjustable-vectors* nil)
+
+(defmacro with-adjustable-vector ((var) &rest body)
+  `(let ((,var (or (pop *adjustable-vectors*)
+		   (make-array 16
+			       :element-type '(unsigned-byte 8)
+			       :fill-pointer 0
+			       :adjustable t))))
+     (setf (fill-pointer ,var) 0)
+     (unwind-protect
+	 (progn
+	   ,@body)
+       (push ,var *adjustable-vectors*))))
+
+(eval-when (compile load eval)
+  (defun emit-error-break (vop kind code values)
+    (let ((vector (gensym)))
+      `((let ((vop ,vop))
+	  (when vop
+	    (note-this-location vop :internal-error)))
+	(inst unimp ,kind)
+	(with-adjustable-vector (,vector)
+	  (write-var-integer (error-number-or-lose ',code) ,vector)
+	  ,@(mapcar #'(lambda (tn)
+			`(let ((tn ,tn))
+			   (write-var-integer (make-sc-offset (sc-number
+							       (tn-sc tn))
+							      (tn-offset tn))
+					      ,vector)))
+		    values)
+	  (inst byte (length ,vector))
+	  (dotimes (i (length ,vector))
+	    (inst byte (aref ,vector i))))
+	(align word-shift)))))
+
+(defmacro error-call (vop error-code &rest values)
+  "Cause an error.  ERROR-CODE is the error to cause."
+  (cons 'progn
+	(emit-error-break vop error-trap error-code values)))
+
+
+(defmacro cerror-call (vop label error-code &rest values)
+  "Cause a continuable error.  If the error is continued, execution resumes at
+  LABEL."
+  `(progn
+     (inst b ,label)
+     ,@(emit-error-break vop cerror-trap error-code values)))
+
+(defmacro generate-error-code (vop error-code &rest values)
+  "Generate-Error-Code Error-code Value*
+  Emit code for an error with the specified Error-Code and context Values."
+  `(assemble (*elsewhere*)
+     (let ((start-lab (gen-label)))
+       (emit-label start-lab)
+       (error-call ,vop ,error-code ,@values)
+       start-lab)))
+
+(defmacro generate-cerror-code (vop error-code &rest values)
+  "Generate-CError-Code Error-code Value*
+  Emit code for a continuable error with the specified Error-Code and
+  context Values.  If the error is continued, execution resumes after
+  the GENERATE-CERROR-CODE form."
+  (let ((continue (gensym "CONTINUE-LABEL-"))
+	(error (gensym "ERROR-LABEL-")))
+    `(let ((,continue (gen-label)))
+       (emit-label ,continue)
+       (assemble (*elsewhere*)
+	 (let ((,error (gen-label)))
+	   (emit-label ,error)
+	   (cerror-call ,vop ,continue ,error-code ,@values)
+	   ,error)))))
+
+
+
+;;; PSEUDO-ATOMIC -- Handy macro for making sequences look atomic.
+;;;
+(defmacro pseudo-atomic ((ndescr-temp) &rest forms)
+  (let ((label (gensym "LABEL-")))
+    `(let ((,label (gen-label)))
+       (store-symbol-value zero-tn lisp::*pseudo-atomic-interrupted*)
+       ;; Note: we just use cfp as some not-zero value.
+       (store-symbol-value cfp-tn lisp::*pseudo-atomic-atomic*)
+       ,@forms
+       (store-symbol-value zero-tn lisp::*pseudo-atomic-atomic*)
+       (load-symbol-value ,ndescr-temp lisp::*pseudo-atomic-interrupted*)
+       (inst cmp ,ndescr-temp)
+       (inst b :eq ,label)
+       (inst nop)
+       (inst unimp pending-interrupt-trap)
+       (emit-label ,label))))
+
+
+
+
+(defmacro pad-data-block (words)
+  `(logandc2 (+ (ash ,words word-shift) lowtag-mask) lowtag-mask))
+
+
+(defmacro defenum ((&key (prefix "") (suffix "") (start 0) (step 1))
+		   &rest identifiers)
+  (let ((results nil)
+	(index 0)
+	(start (eval start))
+	(step (eval step)))
+    (dolist (id identifiers)
+      (when id
+	(multiple-value-bind
+	    (root docs)
+	    (if (consp id)
+		(values (car id) (cdr id))
+		(values id nil))
+	  (push `(defconstant ,(intern (concatenate 'simple-string
+						    (string prefix)
+						    (string root)
+						    (string suffix)))
+		   ,(+ start (* step index))
+		   ,@docs)
+		results)))
+      (incf index))
+    `(eval-when (compile load eval)
+       ,@(nreverse results))))
+
diff --git a/compiler/sparc/memory.lisp b/compiler/sparc/memory.lisp
new file mode 100644
index 000000000..fa90d7bab
--- /dev/null
+++ b/compiler/sparc/memory.lisp
@@ -0,0 +1,160 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/memory.lisp,v 1.1 1990/11/30 17:04:52 wlott Exp $
+;;;
+;;;    This file contains the SPARC definitions of some general purpose memory
+;;; reference VOPs inherited by basic memory reference operations.
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Converted by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+;;; Cell-Ref and Cell-Set are used to define VOPs like CAR, where the offset to
+;;; be read or written is a property of the VOP used.  Cell-Setf is similar to
+;;; Cell-Set, but delivers the new value as the result.  Cell-Setf-Function
+;;; takes its arguments as if it were a setf function (new value first, as
+;;; apposed to a setf macro, which takes the new value last).
+;;;
+(define-vop (cell-ref)
+  (:args (object :scs (descriptor-reg)))
+  (:results (value :scs (descriptor-reg any-reg)))
+  (:variant-vars offset lowtag)
+  (:policy :fast-safe)
+  (:generator 4
+    (loadw value object offset lowtag)))
+;;;
+(define-vop (cell-set)
+  (:args (object :scs (descriptor-reg))
+         (value :scs (descriptor-reg any-reg)))
+  (:variant-vars offset lowtag)
+  (:policy :fast-safe)
+  (:generator 4
+    (storew value object offset lowtag)))
+;;;
+(define-vop (cell-setf)
+  (:args (object :scs (descriptor-reg))
+	 (value :scs (descriptor-reg any-reg)
+		:target result))
+  (:results (result :scs (descriptor-reg any-reg)))
+  (:variant-vars offset lowtag)
+  (:policy :fast-safe)
+  (:generator 4
+    (storew value object offset lowtag)
+    (move result value)))
+;;;
+(define-vop (cell-setf-function)
+  (:args (value :scs (descriptor-reg any-reg)
+		:target result)
+	 (object :scs (descriptor-reg)))
+  (:results (result :scs (descriptor-reg any-reg)))
+  (:variant-vars offset lowtag)
+  (:policy :fast-safe)
+  (:generator 4
+    (storew value object offset lowtag)
+    (move result value)))
+
+;;; Define-Cell-Accessors  --  Interface
+;;;
+;;;    Define accessor VOPs for some cells in an object.  If the operation name
+;;; is NIL, then that operation isn't defined.  If the translate function is
+;;; null, then we don't define a translation.
+;;;
+(defmacro define-cell-accessors (offset lowtag
+					ref-op ref-trans set-op set-trans)
+  `(progn
+     ,@(when ref-op
+	 `((define-vop (,ref-op cell-ref)
+	     (:variant ,offset ,lowtag)
+	     ,@(when ref-trans
+		 `((:translate ,ref-trans))))))
+     ,@(when set-op
+	 `((define-vop (,set-op cell-setf)
+	     (:variant ,offset ,lowtag)
+	     ,@(when set-trans
+		 `((:translate ,set-trans))))))))
+
+
+;;; Slot-Ref and Slot-Set are used to define VOPs like Closure-Ref, where the
+;;; offset is constant at compile time, but varies for different uses.  We add
+;;; in the stardard g-vector overhead.
+;;;
+(define-vop (slot-ref)
+  (:args (object :scs (descriptor-reg)))
+  (:results (value :scs (descriptor-reg any-reg)))
+  (:variant-vars base lowtag)
+  (:info offset)
+  (:generator 4
+    (loadw value object (+ base offset) lowtag)))
+;;;
+(define-vop (slot-set)
+  (:args (object :scs (descriptor-reg))
+	 (value :scs (descriptor-reg any-reg)))
+  (:variant-vars base lowtag)
+  (:info offset)
+  (:generator 4
+    (storew value object (+ base offset) lowtag)))
+
+
+
+;;;; Indexed references:
+
+;;; Define-Indexer  --  Internal
+;;;
+;;;    Define some VOPs for indexed memory reference.
+;;;
+(defmacro define-indexer (name write-p op shift)
+  `(define-vop (,name)
+     (:args (object :scs (descriptor-reg))
+	    (index :scs (any-reg zero immediate))
+	    ,@(when write-p
+		'((value :scs (any-reg descriptor-reg) :target result))))
+     (:arg-types * tagged-num ,@(when write-p '(*)))
+     (:temporary (:scs (non-descriptor-reg)) temp)
+     (:results (,(if write-p 'result 'value)
+		:scs (any-reg descriptor-reg)))
+     (:result-types *)
+     (:variant-vars offset lowtag)
+     (:policy :fast-safe)
+     (:generator 5
+       (sc-case index
+	 ((immediate zero)
+	  (let ((offset (- (+ (if (sc-is index zero)
+				  0
+				  (ash (tn-value index)
+				       (- vm:word-shift ,shift)))
+			      (ash offset vm:word-shift))
+			   lowtag)))
+	    (etypecase offset
+	      ((signed-byte 13)
+	       (inst ,op value object offset))
+	      ((or (unsigned-byte 32) (signed-byte 32))
+	       (inst li temp offset)
+	       (inst ,op value object temp)))))
+	 (t
+	  ,@(unless (zerop shift)
+	      `((inst srl temp index ,shift)))
+	  (inst add temp ,(if (zerop shift) 'index 'temp)
+		(- (ash offset vm:word-shift) lowtag))
+	  (inst ,op value object temp)))
+       ,@(when write-p
+	   '((move result value))))))
+
+(define-indexer word-index-ref nil ld 0)
+(define-indexer word-index-set t st 0)
+(define-indexer halfword-index-ref nil lduh 1)
+(define-indexer signed-halfword-index-ref nil ldsh 1)
+(define-indexer halfword-index-set t sth 1)
+(define-indexer byte-index-ref nil ldub 2)
+(define-indexer signed-byte-index-ref nil ldsb 2)
+(define-indexer byte-index-set t stb 2)
+
diff --git a/compiler/sparc/move.lisp b/compiler/sparc/move.lisp
new file mode 100644
index 000000000..d4bdbaa29
--- /dev/null
+++ b/compiler/sparc/move.lisp
@@ -0,0 +1,278 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/move.lisp,v 1.1 1990/11/30 17:04:53 wlott Exp $
+;;;
+;;;    This file contains the SPARC VM definition of operand loading/saving and
+;;; the Move VOP.
+;;;
+;;; Written by Rob MacLachlan.
+;;; SPARC conversion by William Lott.
+;;;
+(in-package "SPARC")
+
+
+(define-move-function (load-immediate 1) (vop x y)
+  ((null immediate zero)
+   (any-reg descriptor-reg))
+  (let ((val (tn-value x)))
+    (etypecase val
+      (integer
+       (inst li y (fixnum val)))
+      (null
+       (move y null-tn))
+      (symbol
+       (load-symbol y val))
+      (character
+       (inst li y (logior (ash (char-code val) type-bits)
+			  base-character-type))))))
+
+(define-move-function (load-number 1) (vop x y)
+  ((immediate zero)
+   (signed-reg unsigned-reg))
+  (inst li y (tn-value x)))
+
+(define-move-function (load-base-character 1) (vop x y)
+  ((immediate) (base-character-reg))
+  (inst li y (char-code (tn-value x))))
+
+(define-move-function (load-system-area-pointer 1) (vop x y)
+  ((immediate) (sap-reg))
+  (inst li y (sap-int (tn-value x))))
+
+(define-move-function (load-constant 5) (vop x y)
+  ((constant) (descriptor-reg))
+  (loadw y code-tn (tn-offset x) other-pointer-type))
+
+(define-move-function (load-stack 5) (vop x y)
+  ((control-stack) (any-reg descriptor-reg))
+  (load-stack-tn y x))
+
+(define-move-function (load-number-stack 5) (vop x y)
+  ((base-character-stack) (base-character-reg)
+   (sap-stack) (sap-reg)
+   (signed-stack) (signed-reg)
+   (unsigned-stack) (unsigned-reg))
+  (let ((nfp (current-nfp-tn vop)))
+    (loadw y nfp (tn-offset x))))
+
+(define-move-function (store-stack 5) (vop x y)
+  ((any-reg descriptor-reg) (control-stack))
+  (store-stack-tn y x))
+
+(define-move-function (store-number-stack 5) (vop x y)
+  ((base-character-reg) (base-character-stack)
+   (sap-reg) (sap-stack)
+   (signed-reg) (signed-stack)
+   (unsigned-reg) (unsigned-stack))
+  (let ((nfp (current-nfp-tn vop)))
+    (storew x nfp (tn-offset y))))
+
+
+;;;; The Move VOP:
+;;;
+(define-vop (move)
+  (:args (x :target y
+	    :scs (any-reg descriptor-reg zero null)
+	    :load-if (not (location= x y))))
+  (:results (y :scs (any-reg descriptor-reg)
+	       :load-if (not (location= x y))))
+  (:effects)
+  (:affected)
+  (:generator 0
+    (move y x)))
+
+(define-move-vop move :move
+  (any-reg descriptor-reg)
+  (any-reg descriptor-reg))
+
+;;; Make Move the check VOP for T so that type check generation doesn't think
+;;; it is a hairy type.  This also allows checking of a few of the values in a
+;;; continuation to fall out.
+;;;
+(primitive-type-vop move (:check) t)
+
+;;;    The Move-Argument VOP is used for moving descriptor values into another
+;;; frame for argument or known value passing.
+;;;
+(define-vop (move-argument)
+  (:args (x :target y
+	    :scs (any-reg descriptor-reg zero null))
+	 (fp :scs (any-reg)
+	     :load-if (not (sc-is y any-reg descriptor-reg))))
+  (:results (y))
+  (:generator 0
+    (sc-case y
+      ((any-reg descriptor-reg)
+       (move y x))
+      (control-stack
+       (storew x fp (tn-offset y))))))
+;;;
+(define-move-vop move-argument :move-argument
+  (any-reg descriptor-reg)
+  (any-reg descriptor-reg))
+
+
+
+;;;; ILLEGAL-MOVE
+
+;;; This VOP exists just to begin the lifetime of a TN that couldn't be written
+;;; legally due to a type error.  An error is signalled before this VOP is
+;;; so we don't need to do anything (not that there would be anything sensible
+;;; to do anyway.)
+;;;
+(define-vop (illegal-move)
+  (:args (x) (type))
+  (:results (y))
+  (:ignore y)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 666
+    (error-call vop object-not-type-error x type)))
+
+
+
+;;;; Moves and coercions:
+
+;;; Move a tagged number to an untagged representation.
+;;;
+(define-vop (move-to-signed/unsigned)
+  (:args (x :scs (any-reg descriptor-reg constant)))
+  (:results (y :scs (signed-reg unsigned-reg)))
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:generator 4
+    (sc-case x
+      (any-reg
+       (inst sra y x 2))
+      (constant
+       (inst li y (tn-value x)))
+      (descriptor-reg
+       (let ((done (gen-label)))
+	 (inst andcc temp x 3)
+	 (inst b :eq done)
+	 (sc-case y
+	   (signed-reg
+	    (inst sra y x 2))
+	   (unsigned-reg
+	    (inst srl y x 2)))
+
+	 (loadw y x bignum-digits-offset other-pointer-type)
+
+	 (emit-label done))))))
+
+;;;
+(define-move-vop move-to-signed/unsigned :move
+  (any-reg descriptor-reg) (signed-reg unsigned-reg))
+
+
+;;; Move an untagged number to a tagged representation.
+;;;
+(define-vop (move-from-signed/unsigned)
+  (:args (arg :scs (signed-reg unsigned-reg) :target x))
+  (:results (y :scs (any-reg descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg) :from (:argument 0)) x temp)
+  (:generator 20
+    (sc-case y
+      (any-reg
+       ;; The results must be a fixnum, so we can just do the shift.
+       (inst sll y arg 2))
+      (descriptor-reg
+       ;; The results might be a bignum, so we have to make sure.
+       (move x arg)
+       (sc-case arg
+	 (signed-reg
+	  (let ((fixnum (gen-label))
+		(done (gen-label)))
+	    (inst sra temp x 29)
+	    (inst cmp temp)
+	    (inst b :eq fixnum)
+	    (inst orncc temp zero-tn temp)
+	    (inst b :eq done)
+	    (inst sll y x 2)
+
+	    (with-fixed-allocation
+		(y temp bignum-type (1+ bignum-digits-offset))
+	      (storew x y bignum-digits-offset other-pointer-type))
+	    (inst b done)
+	    (inst nop)
+
+	    (emit-label fixnum)
+	    (inst sll y x 2)
+	    (emit-label done)))
+	 (unsigned-reg
+	  (let ((done (gen-label))
+		(one-word (gen-label)))
+	    (inst sra temp x 29)
+	    (inst cmp temp)
+	    (inst b :eq done)
+	    (inst sll y x 2)
+
+	    (pseudo-atomic (temp)
+	      (inst add y alloc-tn other-pointer-type)
+	      (inst add alloc-tn
+		    (pad-data-block (1+ bignum-digits-offset)))
+	      (inst cmp x)
+	      (inst b :ge one-word)
+	      (inst li temp (logior (ash 1 type-bits) bignum-type))
+	      (inst add alloc-tn
+		    (- (pad-data-block (+ bignum-digits-offset 2))
+		       (pad-data-block (+ bignum-digits-offset 1))))
+	      (inst li temp (logior (ash 2 type-bits) bignum-type))
+	      (emit-label one-word)
+	      (storew temp y 0 other-pointer-type)
+	      (storew x y bignum-digits-offset other-pointer-type))
+	    (emit-label done))))))))
+      
+;;;
+(define-move-vop move-from-signed/unsigned :move
+  (signed-reg unsigned-reg) (any-reg descriptor-reg))
+
+
+;;; Move untagged numbers.
+;;;
+(define-vop (signed/unsigned-move)
+  (:args (x :target y
+	    :scs (signed-reg unsigned-reg)
+	    :load-if (not (location= x y))))
+  (:results (y :scs (signed-reg unsigned-reg)
+	       :load-if (not (location= x y))))
+  (:effects)
+  (:affected)
+  (:generator 1
+    (move y x)))
+;;;
+(define-move-vop signed/unsigned-move :move
+  (signed-reg unsigned-reg) (signed-reg unsigned-reg))
+
+
+;;; Move untagged number arguments/return-values.
+;;;
+(define-vop (move-signed/unsigned-argument)
+  (:args (x :target y
+	    :scs (signed-reg unsigned-reg))
+	 (fp :scs (any-reg)
+	     :load-if (not (sc-is y sap-reg))))
+  (:results (y))
+  (:generator 0
+    (sc-case y
+      ((signed-reg unsigned-reg)
+       (move y x))
+      ((signed-stack unsigned-stack)
+       (storew x fp (tn-offset y))))))
+;;;
+(define-move-vop move-signed/unsigned-argument :move-argument
+  (descriptor-reg any-reg signed-reg unsigned-reg) (signed-reg unsigned-reg))
+
+
+;;; Use standard MOVE-ARGUMENT + coercion to move an untagged number to a
+;;; descriptor passing location.
+;;;
+(define-move-vop move-argument :move-argument
+  (signed-reg unsigned-reg) (any-reg descriptor-reg))
+
diff --git a/compiler/sparc/nlx.lisp b/compiler/sparc/nlx.lisp
new file mode 100644
index 000000000..7602c99c5
--- /dev/null
+++ b/compiler/sparc/nlx.lisp
@@ -0,0 +1,306 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/nlx.lisp,v 1.1 1990/11/30 17:04:55 wlott Exp $
+;;;
+;;;    This file contains the definitions of VOPs used for non-local exit
+;;; (throw, lexical exit, etc.)
+;;;
+;;; Written by Rob MacLachlan
+;;;
+(in-package "SPARC")
+
+;;; MAKE-NLX-SP-TN  --  Interface
+;;;
+;;;    Make an environment-live stack TN for saving the SP for NLX entry.
+;;;
+(def-vm-support-routine make-nlx-sp-tn (env)
+  (environment-live-tn
+   (make-representation-tn *fixnum-primitive-type* immediate-arg-scn)
+   env))
+
+
+
+;;; Save and restore dynamic environment.
+;;;
+;;;    These VOPs are used in the reentered function to restore the appropriate
+;;; dynamic environment.  Currently we only save the Current-Catch and binding
+;;; stack pointer.  We don't need to save/restore the current unwind-protect,
+;;; since unwind-protects are implicitly processed during unwinding.  If there
+;;; were any additional stacks, then this would be the place to restore the top
+;;; pointers.
+
+
+;;; Make-Dynamic-State-TNs  --  Interface
+;;;
+;;;    Return a list of TNs that can be used to snapshot the dynamic state for
+;;; use with the Save/Restore-Dynamic-Environment VOPs.
+;;;
+(def-vm-support-routine make-dynamic-state-tns ()
+  (make-n-tns 5 *any-primitive-type*))
+
+(define-vop (save-dynamic-state)
+  (:results (catch :scs (descriptor-reg))
+	    (special :scs (descriptor-reg))
+	    (nfp :scs (descriptor-reg))
+	    (nsp :scs (descriptor-reg))
+	    (eval :scs (descriptor-reg)))
+  (:vop-var vop)
+  (:generator 13
+    (load-symbol-value catch lisp::*current-catch-block*)
+    (move special bsp-tn)
+    (let ((cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(move nfp cur-nfp)))
+    (move nsp nsp-tn)
+    (load-symbol-value eval lisp::*eval-stack-top*)))
+
+(define-vop (restore-dynamic-state)
+  (:args (catch :scs (descriptor-reg))
+	 (special :scs (descriptor-reg))
+	 (nfp :scs (descriptor-reg))
+	 (nsp :scs (descriptor-reg))
+	 (eval :scs (descriptor-reg)))
+  (:temporary (:scs (descriptor-reg)) symbol value)
+  (:vop-var vop)
+  (:generator 10
+    (let ((done (gen-label))
+	  (skip (gen-label))
+	  (loop (gen-label)))
+
+      (store-symbol-value catch lisp::*current-catch-block*)
+      (store-symbol-value eval lisp::*eval-stack-top*)
+      (let ((cur-nfp (current-nfp-tn vop)))
+	(when cur-nfp
+	  (move cur-nfp nfp)))
+      (move nsp-tn nsp)
+      
+      (inst cmp special bsp-tn)
+      (inst b :eq done)
+      (inst nop)
+
+      (emit-label loop)
+      (loadw symbol bsp-tn (- binding-symbol-slot binding-size))
+      (inst cmp symbol)
+      (inst b :eq skip)
+      (loadw value bsp-tn (- binding-value-slot binding-size))
+      (storew value symbol vm:symbol-value-slot vm:other-pointer-type)
+      (storew zero-tn bsp-tn (- binding-symbol-slot binding-size))
+      (emit-label skip)
+      (inst add bsp-tn bsp-tn (* -2 vm:word-bytes))
+      (inst cmp bsp-tn special)
+      (inst b :ne loop)
+      (inst nop)
+
+      (emit-label done))))
+
+(define-vop (current-stack-pointer)
+  (:results (res :scs (any-reg descriptor-reg)))
+  (:generator 1
+    (move res csp-tn)))
+
+(define-vop (current-binding-pointer)
+  (:results (res :scs (any-reg descriptor-reg)))
+  (:generator 1
+    (move res bsp-tn)))
+
+
+
+;;;; Unwind block hackery:
+
+;;; Compute the address of the catch block from its TN, then store into the
+;;; block the current Fp, Env, Unwind-Protect, and the entry PC.
+;;;
+(define-vop (make-unwind-block)
+  (:args (tn))
+  (:info entry-label)
+  (:results (block :scs (any-reg)))
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:generator 22
+    (inst add block cfp-tn (* (tn-offset tn) vm:word-bytes))
+    (load-symbol-value temp lisp::*current-unwind-protect-block*)
+    (storew temp block vm:unwind-block-current-uwp-slot)
+    (storew cfp-tn block vm:unwind-block-current-cont-slot)
+    (storew code-tn block vm:unwind-block-current-code-slot)
+    (inst compute-lra-from-code temp code-tn entry-label ndescr)
+    (storew temp block vm:catch-block-entry-pc-slot)))
+
+
+;;; Like Make-Unwind-Block, except that we also store in the specified tag, and
+;;; link the block into the Current-Catch list.
+;;;
+(define-vop (make-catch-block)
+  (:args (tn)
+	 (tag :scs (descriptor-reg)))
+  (:info entry-label)
+  (:results (block :scs (any-reg)))
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:temporary (:scs (descriptor-reg) :target block :to (:result 0)) result)
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:generator 44
+    (inst add result cfp-tn (* (tn-offset tn) vm:word-bytes))
+    (load-symbol-value temp lisp::*current-unwind-protect-block*)
+    (storew temp result vm:catch-block-current-uwp-slot)
+    (storew cfp-tn result vm:catch-block-current-cont-slot)
+    (storew code-tn result vm:catch-block-current-code-slot)
+    (inst compute-lra-from-code temp code-tn entry-label ndescr)
+    (storew temp result vm:catch-block-entry-pc-slot)
+
+    (storew tag result vm:catch-block-tag-slot)
+    (load-symbol-value temp lisp::*current-catch-block*)
+    (storew temp result vm:catch-block-previous-catch-slot)
+    (store-symbol-value result lisp::*current-catch-block*)
+
+    (move block result)))
+
+
+;;; Just set the current unwind-protect to TN's address.  This instantiates an
+;;; unwind block as an unwind-protect.
+;;;
+(define-vop (set-unwind-protect)
+  (:args (tn))
+  (:temporary (:scs (descriptor-reg)) new-uwp)
+  (:generator 7
+    (inst add new-uwp cfp-tn (* (tn-offset tn) vm:word-bytes))
+    (store-symbol-value new-uwp lisp::*current-unwind-protect-block*)))
+
+
+(define-vop (unlink-catch-block)
+  (:temporary (:scs (any-reg)) block)
+  (:policy :fast-safe)
+  (:translate %catch-breakup)
+  (:generator 17
+    (load-symbol-value block lisp::*current-catch-block*)
+    (loadw block block vm:catch-block-previous-catch-slot)
+    (store-symbol-value block lisp::*current-catch-block*)))
+
+(define-vop (unlink-unwind-protect)
+  (:temporary (:scs (any-reg)) block)
+  (:policy :fast-safe)
+  (:translate %unwind-protect-breakup)
+  (:generator 17
+    (load-symbol-value block lisp::*current-unwind-protect-block*)
+    (loadw block block vm:unwind-block-current-uwp-slot)
+    (store-symbol-value block lisp::*current-unwind-protect-block*)))
+
+
+;;;; NLX entry VOPs:
+
+
+(define-vop (nlx-entry)
+  (:args (sp) ; Note: we can't list an sc-restriction, 'cause any load vops
+	      ; would be inserted before the LRA.
+	 (start)
+	 (count))
+  (:results (values :more t))
+  (:temporary (:scs (descriptor-reg)) move-temp)
+  (:info label nvals)
+  (:save-p :force-to-stack)
+  (:generator 30
+    (emit-return-pc label)
+    (cond ((zerop nvals))
+	  ((= nvals 1)
+	   (let ((no-values (gen-label)))
+	     (inst cmp count)
+	     (inst b :eq no-values)
+	     (move (tn-ref-tn values) null-tn)
+	     (loadw (tn-ref-tn values) start)
+	     (emit-label no-values)))
+	  (t
+	   (collect ((defaults))
+	     (inst subcc count (fixnum 1))
+	     (do ((i 0 (1+ i))
+		  (tn-ref values (tn-ref-across tn-ref)))
+		 ((null tn-ref))
+	       (let ((default-lab (gen-label))
+		     (tn (tn-ref-tn tn-ref)))
+		 (defaults (cons default-lab tn))
+		 
+		 (inst b :l default-lab)
+		 (inst subcc count (fixnum 1))
+		 (sc-case tn
+			  ((descriptor-reg any-reg)
+			   (loadw tn start i))
+			  (control-stack
+			   (loadw move-temp start i)
+			   (store-stack-tn tn move-temp)))))
+	     
+	     (let ((defaulting-done (gen-label)))
+	       
+	       (emit-label defaulting-done)
+	       
+	       (assemble (*elsewhere*)
+		 (dolist (def (defaults))
+		   (emit-label (car def))
+		   (let ((tn (cdr def)))
+		     (sc-case tn
+			      ((descriptor-reg any-reg)
+			       (move tn null-tn))
+			      (control-stack
+			       (store-stack-tn tn null-tn)))))
+		 (inst b defaulting-done)
+		 (inst nop))))))
+    (load-stack-tn csp-tn sp)))
+
+
+(define-vop (nlx-entry-multiple)
+  (:args (top :target dst) (start :target src) (count :target num))
+  ;; Again, no SC restrictions for the args, 'cause the loading would
+  ;; happen before the entry label.
+  (:info label)
+  (:temporary (:scs (any-reg) :from (:argument 0)) dst)
+  (:temporary (:scs (any-reg) :from (:argument 1)) src)
+  (:temporary (:scs (any-reg) :from (:argument 2)) num)
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:results (new-start) (new-count))
+  (:save-p :force-to-stack)
+  (:generator 30
+    (emit-return-pc label)
+    (let ((loop (gen-label))
+	  (done (gen-label)))
+
+      ;; Copy args.
+      (load-stack-tn dst top)
+      (move src start)
+      (move num count)
+
+      ;; Establish results.
+      (sc-case new-start
+	(any-reg (move new-start dst))
+	(control-stack (store-stack-tn new-start dst)))
+      (inst cmp num)
+      (inst b :eq done)
+      (sc-case new-count
+	(any-reg (inst move new-count num))
+	(control-stack (store-stack-tn new-count num)))
+
+      ;; Copy stuff on stack.
+      (emit-label loop)
+      (loadw temp src)
+      (inst add src src vm:word-bytes)
+      (storew temp dst)
+      (inst subcc num (fixnum 1))
+      (inst b :ge loop)
+      (inst add dst dst vm:word-bytes)
+
+      (emit-label done)
+      (inst move csp-tn dst))))
+
+
+;;; This VOP is just to force the TNs used in the cleanup onto the stack.
+;;;
+(define-vop (uwp-entry)
+  (:info label)
+  (:save-p :force-to-stack)
+  (:results (block) (start) (count))
+  (:ignore block start count)
+  (:generator 0
+    (emit-return-pc label)))
+
diff --git a/compiler/sparc/parms.lisp b/compiler/sparc/parms.lisp
new file mode 100644
index 000000000..787d51886
--- /dev/null
+++ b/compiler/sparc/parms.lisp
@@ -0,0 +1,176 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/parms.lisp,v 1.1 1990/11/30 17:04:57 wlott Exp $
+;;;
+;;;    This file contains some parameterizations of various VM
+;;; attributes for the SPARC.  This file is separate from other stuff so 
+;;; that it can be compiled and loaded earlier. 
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Converted to MIPS by William Lott.
+;;;
+
+(in-package "SPARC")
+(use-package "C")
+
+(export '(word-bits byte-bits word-shift word-bytes))
+
+(export '(float-underflow-trap-bit float-overflow-trap-bit
+	  float-imprecise-trap-bit float-invalid-trap-bit
+	  float-divide-by-zero-trap-bit single-float-trapping-nan-bit
+	  double-float-trapping-nan-bit *fixup-values*))
+
+(export '(check-cons check-symbol check-fixnum check-unsigned-byte-32
+	  check-signed-byte-32 check-function check-function-or-symbol))
+
+
+;;;; Compiler constants.
+
+(eval-when (compile eval load)
+
+(setf (backend-name *target-backend*) "SPARC")
+(setf (backend-version *target-backend*) "SPARCstation/Mach 0.0")
+(setf (backend-fasl-file-type *target-backend*) "sparcf")
+(setf (backend-fasl-file-implementation *target-backend*)
+      sparc-fasl-file-implementation)
+(setf (backend-fasl-file-version *target-backend*) 1)
+(setf (backend-register-save-penalty *target-backend*) 3)
+(setf (backend-byte-order *target-backend*) :big-endian)
+
+); eval-when
+
+
+;;;; Machine Architecture parameters:
+
+(eval-when (compile load eval)
+
+(defconstant word-bits 32
+  "Number of bits per word where a word holds one lisp descriptor.")
+
+(defconstant byte-bits 8
+  "Number of bits per byte where a byte is the smallest addressable object.")
+
+(defconstant word-shift (1- (integer-length (/ word-bits byte-bits)))
+  "Number of bits to shift between word addresses and byte addresses.")
+
+(defconstant word-bytes (/ word-bits byte-bits)
+  "Number of bytes in a word.")
+
+
+(defconstant float-sign-shift 31)
+
+(defconstant single-float-bias 126)
+(defconstant single-float-exponent-byte (byte 8 23))
+(defconstant single-float-significand-byte (byte 23 0))
+(defconstant single-float-normal-exponent-min 1)
+(defconstant single-float-normal-exponent-max 254)
+(defconstant single-float-hidden-bit (ash 1 23))
+(defconstant single-float-trapping-nan-bit (ash 1 22))
+
+(defconstant double-float-bias 1022)
+(defconstant double-float-exponent-byte (byte 11 20))
+(defconstant double-float-significand-byte (byte 20 0))
+(defconstant double-float-normal-exponent-min 1)
+(defconstant double-float-normal-exponent-max #x7FE)
+(defconstant double-float-hidden-bit (ash 1 20))
+(defconstant double-float-trapping-nan-bit (ash 1 19))
+
+(defconstant single-float-digits
+  (+ (byte-size single-float-significand-byte) 1))
+
+(defconstant double-float-digits
+  (+ (byte-size double-float-significand-byte) word-bits 1))
+
+); eval-when
+
+
+;;;; Description of the target address space.
+
+(export '(target-read-only-space-start
+	  target-static-space-start
+	  target-dynamic-space-start))
+
+;;; Where to put the different spaces.
+;;; 
+(defparameter target-read-only-space-start #x01000000)
+(defparameter target-static-space-start    #x04000000)
+(defparameter target-dynamic-space-start   #x06000000)
+
+
+
+;;;; Other random constants.
+
+(export '(halt-trap pending-interrupt-trap error-trap cerror-trap))
+
+(defconstant halt-trap 8)
+(defconstant pending-interrupt-trap 9)
+(defconstant error-trap 10)
+(defconstant cerror-trap 11)
+
+
+;;;; Static symbols.
+
+(export '(static-symbols exported-static-symbols))
+
+;;; These symbols are loaded into static space directly after NIL so
+;;; that the system can compute their address by adding a constant
+;;; amount to NIL.
+;;;
+;;; The exported static symbols are a subset of the static symbols that get
+;;; exported to the C header file.
+;;;
+(defparameter static-symbols
+  '(t
+
+    ;; The C startup code must fill these in.
+    lisp::lisp-environment-list
+    lisp::lisp-command-line-list
+
+    ;; Functions that the C code needs to call
+    lisp::%initial-function
+    lisp::maybe-gc
+    kernel::internal-error
+
+    ;; Free Pointers.
+    lisp::*read-only-space-free-pointer*
+    lisp::*static-space-free-pointer*
+    lisp::*initial-dynamic-space-free-pointer*
+
+    ;; Things needed for non-local-exit.
+    lisp::*current-catch-block*
+    lisp::*current-unwind-protect-block*
+    *eval-stack-top*
+
+    ;; Interrupt Handling
+    lisp::*free-interrupt-context-index*
+    lisp::*pseudo-atomic-atomic*
+    lisp::*pseudo-atomic-interrupted*
+    mach::*interrupts-enabled*
+    mach::*interrupt-pending*
+
+    ;; Static functions.
+    length
+    two-arg-+ two-arg-- two-arg-* two-arg-/ two-arg-< two-arg-> two-arg-=
+    two-arg-<= two-arg->= two-arg-/= eql %negate
+    two-arg-and two-arg-ior two-arg-xor
+    two-arg-gcd two-arg-lcm
+    ))
+
+(defparameter exported-static-symbols
+  (subseq static-symbols 0 (position 'length static-symbols)))
+
+
+
+;;;; Assembler parameters:
+
+;;; The number of bits per element in the assemblers code vector.
+;;;
+(defparameter *assembly-unit-length* 8)
diff --git a/compiler/sparc/pred.lisp b/compiler/sparc/pred.lisp
new file mode 100644
index 000000000..3dd37ef3f
--- /dev/null
+++ b/compiler/sparc/pred.lisp
@@ -0,0 +1,46 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/pred.lisp,v 1.1 1990/11/30 17:04:59 wlott Exp $
+;;;
+;;;    This file contains the VM definition of predicate VOPs for the SPARC.
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Converted by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+
+;;;; The Branch VOP.
+
+;;; The unconditional branch, emitted when we can't drop through to the desired
+;;; destination.  Dest is the continuation we transfer control to.
+;;;
+(define-vop (branch)
+  (:info dest)
+  (:generator 5
+    (inst b dest)
+    (inst nop)))
+
+
+;;;; Conditional VOPs:
+
+(define-vop (if-eq)
+  (:args (x :scs (any-reg descriptor-reg zero null))
+	 (y :scs (any-reg descriptor-reg zero null)))
+  (:conditional)
+  (:info target not-p)
+  (:policy :fast-safe)
+  (:translate eq)
+  (:generator 3
+    (inst cmp x y)
+    (inst b (if not-p :ne :eq) target)
+    (inst nop)))
diff --git a/compiler/sparc/print.lisp b/compiler/sparc/print.lisp
new file mode 100644
index 000000000..66361f358
--- /dev/null
+++ b/compiler/sparc/print.lisp
@@ -0,0 +1,41 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/print.lisp,v 1.1 1990/11/30 17:05:00 wlott Exp $
+;;;
+;;; This file contains VOPs for things like printing during %initial-function
+;;; before the world is initialized.
+;;;
+;;; Written by William Lott.
+
+(in-package "SPARC")
+
+
+(define-vop (print)
+  (:args (object :scs (descriptor-reg any-reg) :target nl0))
+  (:results (result :scs (descriptor-reg)))
+  (:save-p t)
+  (:temporary (:sc any-reg :offset nl0-offset :from (:argument 0)) nl0)
+  (:temporary (:sc any-reg :offset cfunc-offset) cfunc)
+  (:temporary (:sc interior-reg :offset lip-offset) lip)
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save)
+  (:vop-var vop)
+  (:generator 100
+    (let ((cur-nfp (current-nfp-tn vop)))
+      (when cur-nfp
+	(store-stack-tn nfp-save cur-nfp))
+      (move nl0 object)
+      (inst li cfunc (make-fixup "_debug_print" :foreign))
+      (inst li temp (make-fixup "_call_into_c" :foreign))
+      (inst jal lip temp)
+      (inst nop)
+      (when cur-nfp
+	(load-stack-tn cur-nfp nfp-save))
+      (move result nl0))))
diff --git a/compiler/sparc/sap.lisp b/compiler/sparc/sap.lisp
new file mode 100644
index 000000000..824645ca4
--- /dev/null
+++ b/compiler/sparc/sap.lisp
@@ -0,0 +1,365 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/sap.lisp,v 1.1 1990/11/30 17:05:01 wlott Exp $
+;;;
+;;; This file contains the SPARC VM definition of SAP operations.
+;;;
+;;; Written by William Lott.
+;;;
+(in-package "SPARC")
+
+
+;;;; Moves and coercions:
+
+;;; Move a tagged SAP to an untagged representation.
+;;;
+(define-vop (move-to-sap)
+  (:args (x :scs (any-reg descriptor-reg)))
+  (:results (y :scs (sap-reg)))
+  (:generator 1
+    (loadw y x sap-pointer-slot other-pointer-type)))
+
+;;;
+(define-move-vop move-to-sap :move
+  (descriptor-reg) (sap-reg))
+
+
+;;; Move an untagged SAP to a tagged representation.
+;;;
+(define-vop (move-from-sap)
+  (:args (sap :scs (sap-reg) :to :save))
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:results (res :scs (descriptor-reg)))
+  (:generator 1
+    (with-fixed-allocation (res ndescr sap-type sap-size)
+      (storew sap res sap-pointer-slot other-pointer-type))))
+;;;
+(define-move-vop move-from-sap :move
+  (sap-reg) (descriptor-reg))
+
+
+;;; Move untagged sap values.
+;;;
+(define-vop (sap-move)
+  (:args (x :target y
+	    :scs (sap-reg)
+	    :load-if (not (location= x y))))
+  (:results (y :scs (sap-reg)
+	       :load-if (not (location= x y))))
+  (:effects)
+  (:affected)
+  (:generator 0
+    (move y x)))
+;;;
+(define-move-vop sap-move :move
+  (sap-reg) (sap-reg))
+
+
+;;; Move untagged sap arguments/return-values.
+;;;
+(define-vop (move-sap-argument)
+  (:args (x :target y
+	    :scs (sap-reg))
+	 (fp :scs (any-reg)
+	     :load-if (not (sc-is y sap-reg))))
+  (:results (y))
+  (:generator 0
+    (sc-case y
+      (sap-reg
+       (move y x))
+      (sap-stack
+       (storew x fp (tn-offset y))))))
+;;;
+(define-move-vop move-sap-argument :move-argument
+  (descriptor-reg sap-reg) (sap-reg))
+
+
+;;; Use standard MOVE-ARGUMENT + coercion to move an untagged sap to a
+;;; descriptor passing location.
+;;;
+(define-move-vop move-argument :move-argument
+  (sap-reg) (descriptor-reg))
+
+
+
+;;;; SAP-INT and INT-SAP
+
+(define-vop (sap-int)
+  (:args (sap :scs (sap-reg) :target int))
+  (:arg-types system-area-pointer)
+  (:results (int :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:translate sap-int)
+  (:policy :fast-safe)
+  (:generator 1
+    (move int sap)))
+
+(define-vop (int-sap)
+  (:args (int :scs (unsigned-reg) :target sap))
+  (:arg-types unsigned-num)
+  (:results (sap :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:translate int-sap)
+  (:policy :fast-safe)
+  (:generator 1
+    (move sap int)))
+
+
+
+;;;; POINTER+ and POINTER-
+
+(define-vop (pointer+)
+  (:translate sap+)
+  (:args (ptr :scs (sap-reg))
+	 (offset :scs (signed-reg immediate)))
+  (:arg-types system-area-pointer signed-num)
+  (:results (res :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:policy :fast-safe)
+  (:generator 1
+    (sc-case offset
+      (signed-reg
+       (inst add res ptr offset))
+      (immediate
+       (inst add res ptr (tn-value offset))))))
+
+(define-vop (pointer-)
+  (:translate sap-)
+  (:args (ptr1 :scs (sap-reg))
+	 (ptr2 :scs (sap-reg)))
+  (:arg-types system-area-pointer system-area-pointer)
+  (:policy :fast-safe)
+  (:results (res :scs (signed-reg)))
+  (:result-types signed-num)
+  (:generator 1
+    (inst sub res ptr1 ptr2)))
+
+
+
+;;;; mumble-SYSTEM-REF and mumble-SYSTEM-SET
+
+(define-vop (sap-ref)
+  (:policy :fast-safe)
+  (:variant-vars size signed)
+  (:args (sap :scs (sap-reg))
+	 (offset :scs (any-reg signed-reg zero immediate)))
+  (:arg-types system-area-pointer positive-fixnum)
+  (:results (result))
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:generator 5
+    (let* ((shift (ecase size
+		    (:byte 0)
+		    (:short 1)
+		    ((:long :single :double) 2)))
+	   (offset
+	    (sc-case offset
+	      (zero offset)
+	      (immediate
+	       (let ((offset (ash (tn-value offset) shift)))
+		 (cond ((typep offset '(signed-byte 13))
+			offset)
+		       (t
+			(inst li temp offset)
+			temp))))
+	      ((any-reg signed-reg)
+	       (when (sc-is offset any-reg)
+		 (decf shift 2))
+	       (cond ((plusp shift)
+		      (inst sll temp offset shift)
+		      temp)
+		     ((minusp shift)
+		      (inst sra temp offset (- shift))
+		      temp)
+		     (t
+		      offset))))))
+      (ecase size
+	(:byte
+	 (if signed
+	     (inst ldsb result sap offset)
+	     (inst ldub result sap offset)))
+	(:short
+	 (if signed
+	     (inst ldsh result sap offset)
+	     (inst lduh result sap offset)))
+	(:long
+	 (inst ld result sap offset))
+	(:single
+	 (inst ldf result sap offset))
+	(:double
+	 (inst lddf result sap offset))))))
+
+
+(define-vop (sap-set)
+  (:policy :fast-safe)
+  (:variant-vars size)
+  (:args (sap :scs (sap-reg))
+	 (offset :scs (any-reg signed-reg zero immediate))
+	 (value :scs (signed-reg unsigned-reg) :target result))
+  (:arg-types system-area-pointer positive-fixnum (:or signed-num unsigned-num))
+  (:results (result :scs (signed-reg unsigned-reg)))
+  (:result-types (:or signed-num unsigned-num))
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:generator 5
+    (let* ((shift (ecase size
+		    (:byte 0)
+		    (:short 1)
+		    ((:long :single :double) 2)))
+	   (offset
+	    (sc-case offset
+	      (zero offset)
+	      (immediate
+	       (let ((offset (ash (tn-value offset) shift)))
+		 (cond ((typep offset '(signed-byte 13))
+			offset)
+		       (t
+			(inst li temp offset)
+			temp))))
+	      ((any-reg signed-reg)
+	       (when (sc-is offset any-reg)
+		 (decf shift 2))
+	       (cond ((plusp shift)
+		      (inst sll temp offset shift)
+		      temp)
+		     ((minusp shift)
+		      (inst sra temp offset (- shift))
+		      temp)
+		     (t
+		      offset))))))
+      (ecase size
+	(:byte
+	 (inst stb value sap offset)
+	 (move result value))
+	(:short
+	 (inst sth value sap offset)
+	 (move result value))
+	(:long
+	 (inst st value sap offset)
+	 (move result value))
+	(:single
+	 (inst stf value sap offset)
+	 (unless (location= result value)
+	   (inst fmovs result value)))
+	(:double
+	 (inst stdf value sap offset)
+	 (unless (location= result value)
+	   (inst fmovs result value)
+	   (inst fmovs-odd result value)))))))
+
+
+
+(define-vop (sap-system-ref sap-ref)
+  (:translate sap-ref-sap)
+  (:results (result :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:variant :long nil))
+
+(define-vop (sap-system-set sap-set)
+  (:translate %set-sap-ref-sap)
+  (:args (sap :scs (sap-reg))
+	 (offset :scs (any-reg signed-reg zero immediate))
+	 (value :scs (sap-reg) :target result))
+  (:arg-types system-area-pointer positive-fixnum system-area-pointer)
+  (:results (result :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:variant :long))
+
+
+
+(define-vop (32bit-system-ref sap-ref)
+  (:translate sap-ref-32)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types unsigned-num)
+  (:variant :long nil))
+
+(define-vop (signed-32bit-system-ref sap-ref)
+  (:translate signed-sap-ref-32)
+  (:results (result :scs (signed-reg)))
+  (:result-types signed-num)
+  (:variant :long t))
+
+(define-vop (32bit-system-set sap-set)
+  (:translate %set-sap-ref-32)
+  (:arg-types system-area-pointer positive-fixnum
+	      (:or unsigned-num signed-num))
+  (:variant :long))
+
+
+(define-vop (16bit-system-ref sap-ref)
+  (:translate sap-ref-16)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types positive-fixnum)
+  (:variant :short nil))
+
+(define-vop (signed-16bit-system-ref sap-ref)
+  (:translate signed-sap-ref-16)
+  (:results (result :scs (signed-reg)))
+  (:result-types tagged-num)
+  (:variant :short t))
+
+(define-vop (16bit-system-set sap-set)
+  (:translate %set-sap-ref-16)
+  (:arg-types system-area-pointer positive-fixnum tagged-num)
+  (:variant :short))
+
+
+(define-vop (8bit-system-ref sap-ref)
+  (:translate sap-ref-8)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types positive-fixnum)
+  (:variant :byte nil))
+
+(define-vop (signed-8bit-system-ref sap-ref)
+  (:translate signed-sap-ref-8)
+  (:results (result :scs (signed-reg)))
+  (:result-types tagged-num)
+  (:variant :byte t))
+
+(define-vop (8bit-system-set sap-set)
+  (:translate %set-sap-ref-8)
+  (:arg-types system-area-pointer positive-fixnum tagged-num)
+  (:variant :byte))
+
+
+
+;;; Noise to convert normal lisp data objects into SAPs.
+
+(define-vop (vector-sap)
+  (:translate vector-sap)
+  (:policy :fast-safe)
+  (:args (vector :scs (descriptor-reg)))
+  (:results (sap :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:generator 2
+    (inst add sap vector
+	  (- (* vector-data-offset word-bytes) other-pointer-type))))
+
+
+
+;;;; ### Noise to allow old forms to continue to work until they are gone.
+
+(macrolet ((frob (prim func)
+	     `(def-primitive-translator ,prim (&rest args)
+		(warn "Someone used %primitive ~S -- should be ~S."
+		      ',prim ',func)
+		`(,',func ,@args))))
+  (frob 32bit-system-ref sap-ref-32)
+  (frob unsigned-32bit-system-ref sap-ref-32)
+  (frob 16bit-system-ref sap-ref-16)
+  (frob 8bit-system-ref sap-ref-8))
+
+(macrolet ((frob (prim func)
+	     `(def-primitive-translator ,prim (&rest args)
+		(warn "Someone used %primitive ~S -- should be ~S."
+		      ',prim (list 'setf ',func))
+		`(setf ,',func ,@args))))
+  (frob 32bit-system-set sap-ref-32)
+  (frob signed-32bit-system-set sap-ref-32)
+  (frob 16bit-system-set sap-ref-16)
+  (frob 8bit-system-set sap-ref-8))
diff --git a/compiler/sparc/static-fn.lisp b/compiler/sparc/static-fn.lisp
new file mode 100644
index 000000000..cc4ba81de
--- /dev/null
+++ b/compiler/sparc/static-fn.lisp
@@ -0,0 +1,154 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the CMU Common Lisp project at
+;;; Carnegie Mellon University, and has been placed in the public
+;;; domain.  If you want to use this code or any part of CMU Common
+;;; Lisp, please contact Scott Fahlman (Scott.Fahlman@CS.CMU.EDU)
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/static-fn.lisp,v 1.1 1990/11/30 17:05:03 wlott Exp $
+;;;
+;;; This file contains the VOPs and macro magic necessary to call static
+;;; functions.
+;;;
+;;; Written by William Lott.
+;;;
+(in-package "SPARC")
+
+
+
+(define-vop (static-function-template)
+  (:save-p t)
+  (:policy :safe)
+  (:variant-vars symbol)
+  (:vop-var vop)
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:temporary (:scs (descriptor-reg)) move-temp)
+  (:temporary (:sc descriptor-reg :offset lra-offset) lra)
+  (:temporary (:sc descriptor-reg :offset cname-offset) cname)
+  (:temporary (:scs (descriptor-reg)) func)
+  (:temporary (:sc any-reg :offset nargs-offset) nargs)
+  (:temporary (:sc any-reg :offset ocfp-offset) old-fp)
+  (:temporary (:sc control-stack :offset nfp-save-offset) nfp-save))
+
+
+(eval-when (compile load eval)
+
+
+(defun static-function-template-name (num-args num-results)
+  (intern (format nil "~:@(~R-arg-~R-result-static-function~)"
+		  num-args num-results)))
+
+
+(defun moves (dst src)
+  (collect ((moves))
+    (do ((dst dst (cdr dst))
+	 (src src (cdr src)))
+	((or (null dst) (null src)))
+      (moves `(move ,(car dst) ,(car src))))
+    (moves)))
+
+(defun static-function-template-vop (num-args num-results)
+  (assert (and (<= num-args register-arg-count)
+	       (<= num-results register-arg-count))
+	  (num-args num-results)
+	  "Either too many args (~D) or too many results (~D).  Max = ~D"
+	  num-args num-results register-arg-count)
+  (let ((num-temps (max num-args num-results)))
+    (collect ((temp-names) (temps) (arg-names) (args) (result-names) (results))
+      (dotimes (i num-results)
+	(let ((result-name (intern (format nil "RESULT-~D" i))))
+	  (result-names result-name)
+	  (results `(,result-name :scs (any-reg descriptor-reg)))))
+      (dotimes (i num-temps)
+	(let ((temp-name (intern (format nil "TEMP-~D" i))))
+	  (temp-names temp-name)
+	  (temps `(:temporary (:sc descriptor-reg
+			       :offset ,(nth i register-arg-offsets)
+			       ,@(when (< i num-args)
+				   `(:from (:argument ,i)))
+			       ,@(when (< i num-results)
+				   `(:to (:result ,i)
+				     :target ,(nth i (result-names)))))
+			      ,temp-name))))
+      (dotimes (i num-args)
+	(let ((arg-name (intern (format nil "ARG-~D" i))))
+	  (arg-names arg-name)
+	  (args `(,arg-name
+		  :scs (any-reg descriptor-reg)
+		  :target ,(nth i (temp-names))))))
+      `(define-vop (,(static-function-template-name num-args num-results)
+		    static-function-template)
+	 (:args ,@(args))
+	 ,@(temps)
+	 (:results ,@(results))
+	 (:generator ,(+ 50 num-args num-results)
+	   (let ((lra-label (gen-label))
+		 (cur-nfp (current-nfp-tn vop)))
+	     ,@(moves (temp-names) (arg-names))
+	     (inst li nargs (fixnum ,num-args))
+	     (load-symbol cname symbol)
+	     (inst ld func cname
+		   (- (ash symbol-raw-function-addr-slot word-shift)
+		      other-pointer-type))
+	     (when cur-nfp
+	       (store-stack-tn nfp-save cur-nfp))
+	     (inst move old-fp cfp-tn)
+	     (inst move cfp-tn csp-tn)
+	     (inst compute-lra-from-code lra code-tn lra-label temp)
+	     (inst j func (- (ash function-header-code-offset word-shift)
+			     function-pointer-type))
+	     (inst move code-tn func)
+	     (emit-return-pc lra-label)
+	     (note-this-location vop :unknown-return)
+	     ,(collect ((bindings) (links))
+		(do ((temp (temp-names) (cdr temp))
+		     (name 'values (gensym))
+		     (prev nil name)
+		     (i 0 (1+ i)))
+		    ((= i num-results))
+		  (bindings `(,name
+			      (make-tn-ref ,(car temp) nil)))
+		  (when prev
+		    (links `(setf (tn-ref-across ,prev) ,name))))
+		`(let ,(bindings)
+		   ,@(links)
+		   (default-unknown-values
+		       ,(if (zerop num-results) nil 'values)
+		       ,num-results move-temp temp lra-label)))
+	     (when cur-nfp
+	       (load-stack-tn cur-nfp nfp-save))
+	     ,@(moves (result-names) (temp-names))))))))
+
+
+) ; eval-when (compile load eval)
+
+
+(macrolet ((frob (num-args num-res)
+	     (static-function-template-vop (eval num-args) (eval num-res))))
+  (frob 0 1)
+  (frob 1 1)
+  (frob 2 1)
+  (frob 3 1)
+  (frob 4 1)
+  (frob 5 1))
+
+
+(defmacro define-static-function (name args &key (results '(x)) translate
+				       policy cost arg-types result-types)
+  `(define-vop (,name
+		,(static-function-template-name (length args)
+						(length results)))
+     (:variant ',name)
+     (:note ,(format nil "static-function ~@(~S~)" name))
+     ,@(when translate
+	 `((:translate ,translate)))
+     ,@(when policy
+	 `((:policy ,policy)))
+     ,@(when cost
+	 `((:generator-cost ,cost)))
+     ,@(when arg-types
+	 `((:arg-types ,@arg-types)))
+     ,@(when result-types
+	 `((:result-types ,@result-types)))))
diff --git a/compiler/sparc/subprim.lisp b/compiler/sparc/subprim.lisp
new file mode 100644
index 000000000..fce7835e9
--- /dev/null
+++ b/compiler/sparc/subprim.lisp
@@ -0,0 +1,60 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/subprim.lisp,v 1.1 1990/11/30 17:05:04 wlott Exp $
+;;;
+;;;    Linkage information for standard static functions, and random vops.
+;;;
+;;; Written by William Lott.
+;;; 
+(in-package "SPARC")
+
+
+
+;;;; Length
+
+(define-vop (length/list)
+  (:translate length)
+  (:args (object :scs (descriptor-reg) :target ptr))
+  (:arg-types list)
+  (:temporary (:scs (descriptor-reg) :from (:argument 0)) ptr)
+  (:temporary (:scs (non-descriptor-reg) :type random) temp)
+  (:temporary (:scs (any-reg) :type fixnum :to (:result 0) :target result)
+	      count)
+  (:results (result :scs (any-reg descriptor-reg)))
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 50
+    (let ((done (gen-label))
+	  (loop (gen-label))
+	  (not-list (generate-cerror-code vop object-not-list-error object)))
+      (move ptr object)
+      (move count zero-tn)
+
+      (emit-label loop)
+
+      (inst cmp ptr null-tn)
+      (inst b :eq done)
+      (inst nop)
+
+      (test-type ptr temp not-list t vm:list-pointer-type)
+
+      (loadw ptr ptr vm:cons-cdr-slot vm:list-pointer-type)
+      (inst add count count (fixnum 1))
+      (test-type ptr temp loop nil vm:list-pointer-type)
+
+      (cerror-call vop done object-not-list-error ptr)
+
+      (emit-label done)
+      (move result count))))
+       
+
+(define-static-function length (object) :translate length)
+
diff --git a/compiler/sparc/system.lisp b/compiler/sparc/system.lisp
new file mode 100644
index 000000000..d23200008
--- /dev/null
+++ b/compiler/sparc/system.lisp
@@ -0,0 +1,272 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/system.lisp,v 1.1 1990/11/30 17:05:05 wlott Exp $
+;;;
+;;;    MIPS VM definitions of various system hacking operations.
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Mips conversion by William Lott and Christopher Hoover.
+;;;
+(in-package "SPARC")
+
+
+;;;; Random pointer comparison VOPs
+
+(define-vop (pointer-compare)
+  (:args (x :scs (sap-reg))
+	 (y :scs (sap-reg)))
+  (:arg-types system-area-pointer system-area-pointer)
+  (:conditional)
+  (:info target not-p)
+  (:policy :fast-safe)
+  (:note "inline comparison")
+  (:variant-vars condition not-condition)
+  (:generator 3
+    (inst cmp x y)
+    (inst b (if not-p not-condition condition) target)
+    (inst nop)))
+
+(macrolet ((frob (name cond not-cond)
+	     `(progn
+		(def-primitive-translator ,name (x y)
+		  (warn "Someone used %primitive ~S" ',name)
+		  `(,',name ,x ,y))
+		(defknown ,name (t t) boolean (movable foldable flushable))
+		(define-vop (,name pointer-compare)
+		  (:translate ,name)
+		  (:variant ,cond ,not-cond)))))
+  (frob pointer< :ltu :geu)
+  (frob pointer> :gtu :leu))
+
+
+
+;;;; Random assertions VOPS.
+
+(define-vop (check-op)
+  (:args (x :scs (any-reg descriptor-reg))
+	 (y :scs (any-reg descriptor-reg)))
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:policy :fast-safe))
+
+(define-vop (check<= check-op)
+  (:translate system:check<=)
+  (:generator 3
+    (let ((target (generate-error-code vop not-<=-error x y)))
+      (inst cmp x y)
+      (inst b :gt target)
+      (inst nop))))
+
+(define-vop (check= check-op)
+  (:translate system:check=)
+  (:generator 3
+    (let ((target (generate-error-code vop not-<=-error x y)))
+      (inst cmp x y)
+      (inst b :ne target)
+      (inst nop))))
+
+
+
+;;;; Type frobbing VOPs
+
+(define-vop (get-lowtag)
+  (:translate get-lowtag)
+  (:policy :fast-safe)
+  (:args (object :scs (any-reg descriptor-reg)))
+  (:results (result :scs (unsigned-reg)))
+  (:result-types positive-fixnum)
+  (:generator 1
+    (inst and result object vm:lowtag-mask)))
+
+(define-vop (get-type)
+  (:translate get-type)
+  (:policy :fast-safe)
+  (:args (object :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:results (result :scs (unsigned-reg)))
+  (:result-types positive-fixnum)
+  (:generator 6
+    (let ((other-ptr (gen-label))
+	  (function-ptr (gen-label))
+	  (done (gen-label)))
+      (test-type object ndescr other-ptr nil vm:other-pointer-type)
+      (test-type object ndescr function-ptr nil vm:function-pointer-type)
+      (inst andcc result object
+	    (logand vm:other-immediate-0-type vm:other-immediate-1-type))
+      (inst b :eq done)
+      (inst nop)
+
+      (inst b done)
+      (inst and result object vm:type-mask)
+
+      (emit-label function-ptr)
+      (load-type result object (- vm:function-pointer-type))
+      (inst b done)
+      (inst nop)
+
+      (emit-label other-ptr)
+      (load-type result object (- vm:other-pointer-type))
+      (inst nop)
+      
+      (emit-label done))))
+
+(define-vop (get-header-data)
+  (:translate get-header-data)
+  (:policy :fast-safe)
+  (:args (x :scs (descriptor-reg)))
+  (:results (res :scs (unsigned-reg)))
+  (:result-types positive-fixnum)
+  (:generator 6
+    (loadw res x 0 vm:other-pointer-type)
+    (inst srl res res vm:type-bits)))
+
+(define-vop (get-closure-length)
+  (:translate get-closure-length)
+  (:policy :fast-safe)
+  (:args (x :scs (descriptor-reg)))
+  (:results (res :scs (unsigned-reg)))
+  (:result-types positive-fixnum)
+  (:generator 6
+    (loadw res x 0 vm:function-pointer-type)
+    (inst srl res res vm:type-bits)))
+
+(define-vop (set-header-data)
+  (:translate set-header-data)
+  (:policy :fast-safe)
+  (:args (x :scs (descriptor-reg) :target res)
+	 (data :scs (any-reg immediate zero)))
+  (:arg-types * positive-fixnum)
+  (:results (res :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg) :type random) t1 t2)
+  (:generator 6
+    (loadw t1 x 0 vm:other-pointer-type)
+    (inst and t1 vm:type-mask)
+    (sc-case data
+      (any-reg
+       (inst sll t2 data (- vm:type-bits 2))
+       (inst or t1 t2))
+      (immediate
+       (inst or t1 (ash (tn-value data) vm:type-bits)))
+      (zero))
+    (storew t1 x 0 vm:other-pointer-type)
+    (move res x)))
+
+
+(define-vop (structurify)
+  (:policy :fast-safe)
+  (:translate structurify)
+  (:args (vec :scs (descriptor-reg) :target struct))
+  (:results (struct :scs (descriptor-reg)))
+  (:temporary (:scs (any-reg)) temp)
+  (:generator 2
+    (inst li temp vm:structure-header-type)
+    (storew temp vec 0 vm:other-pointer-type)
+    (move struct vec)))
+
+
+(define-vop (make-fixnum)
+  (:args (ptr :scs (any-reg descriptor-reg)))
+  (:results (res :scs (any-reg descriptor-reg)))
+  (:generator 1
+    ;;
+    ;; Some code (the hash table code) depends on this returning a
+    ;; positive number so make sure it does.
+    (inst sll res ptr 3)
+    (inst srl res res 1)))
+
+(define-vop (make-other-immediate-type)
+  (:args (val :scs (any-reg descriptor-reg))
+	 (type :scs (any-reg descriptor-reg immediate)
+	       :target temp))
+  (:results (res :scs (any-reg descriptor-reg)))
+  (:temporary (:type random  :scs (non-descriptor-reg)) temp)
+  (:generator 2
+    (sc-case type
+      (immediate
+       (inst sll temp val vm:type-bits)
+       (inst or res temp (tn-value type)))
+      (t
+       (inst sra temp type 2)
+       (inst sll res val (- vm:type-bits 2))
+       (inst or res res temp)))))
+
+
+;;;; Allocation
+
+(define-vop (dynamic-space-free-pointer)
+  (:results (int :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:translate dynamic-space-free-pointer)
+  (:policy :fast-safe)
+  (:generator 1
+    (move int alloc-tn)))
+
+(define-vop (binding-stack-pointer-sap)
+  (:results (int :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:translate binding-stack-pointer-sap)
+  (:policy :fast-safe)
+  (:generator 1
+    (move int bsp-tn)))
+
+(define-vop (control-stack-pointer-sap)
+  (:results (int :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:translate control-stack-pointer-sap)
+  (:policy :fast-safe)
+  (:generator 1
+    (move int csp-tn)))
+
+
+;;;; Code object frobbing.
+
+(define-vop (code-instructions)
+  (:args (code :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:results (sap :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:generator 10
+    (loadw ndescr code 0 vm:other-pointer-type)
+    (inst srl ndescr vm:type-bits)
+    (inst sll ndescr vm:word-shift)
+    (inst sub ndescr vm:other-pointer-type)
+    (inst add sap code ndescr)))
+
+(define-vop (compute-function)
+  (:args (code :scs (descriptor-reg))
+	 (offset :scs (signed-reg unsigned-reg)))
+  (:arg-types * positive-fixnum)
+  (:results (func :scs (descriptor-reg)))
+  (:temporary (:scs (non-descriptor-reg)) ndescr)
+  (:generator 10
+    (loadw ndescr code 0 vm:other-pointer-type)
+    (inst srl ndescr vm:type-bits)
+    (inst sll ndescr vm:word-shift)
+    (inst add ndescr offset)
+    (inst add ndescr (- vm:function-pointer-type vm:other-pointer-type))
+    (inst add func code ndescr)))
+
+
+;;;; Other random VOPs.
+
+
+(defknown mach::do-pending-interrupt () (values))
+(define-vop (mach::do-pending-interrupt)
+  (:policy :fast-safe)
+  (:translate mach::do-pending-interrupt)
+  (:generator 1
+    (inst unimp pending-interrupt-trap)))
+
+
+(define-vop (halt)
+  (:generator 1
+    (inst unimp halt-trap)))
+
diff --git a/compiler/sparc/type-vops.lisp b/compiler/sparc/type-vops.lisp
new file mode 100644
index 000000000..bcc4328f7
--- /dev/null
+++ b/compiler/sparc/type-vops.lisp
@@ -0,0 +1,447 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/type-vops.lisp,v 1.1 1990/11/30 17:05:06 wlott Exp $
+;;; 
+;;; This file contains the VM definition of type testing and checking VOPs
+;;; for the SPARC.
+;;;
+;;; Written by William Lott.
+;;;
+(in-package "SPARC")
+
+
+;;;; Simple type checking and testing:
+;;;
+;;;    These types are represented by a single type code, so are easily
+;;; open-coded as a mask and compare.
+
+(define-vop (check-type)
+  (:args (value :target result :scs (any-reg descriptor-reg)))
+  (:results (result :scs (any-reg descriptor-reg)))
+  (:temporary (:type random :scs (non-descriptor-reg)) temp)
+  (:vop-var vop)
+  (:save-p :compute-only))
+
+(define-vop (type-predicate)
+  (:args (value :scs (any-reg descriptor-reg)))
+  (:conditional)
+  (:info target not-p)
+  (:policy :fast-safe)
+  (:temporary (:type random :scs (non-descriptor-reg)) temp))
+
+(eval-when (compile eval)
+
+(defun cost-to-test-types (type-codes)
+  (+ (* 2 (length type-codes))
+     (if (> (apply #'max type-codes) vm:lowtag-limit) 7 2)))
+
+(defmacro def-type-vops (pred-name check-name ptype error-code
+				   &rest type-codes)
+  (let ((cost (cost-to-test-types (mapcar #'eval type-codes))))
+    `(progn
+       ,@(when pred-name
+	   `((define-vop (,pred-name type-predicate)
+	       (:translate ,pred-name)
+	       (:generator ,cost
+		 (test-type value temp target not-p ,@type-codes)))))
+       ,@(when check-name
+	   `((define-vop (,check-name check-type)
+	       (:generator ,cost
+		 (let ((err-lab
+			(generate-error-code vop ,error-code value)))
+		   (test-type value temp err-lab t ,@type-codes)
+		   (move result value))))))
+       ,@(when ptype
+	   `((primitive-type-vop ,check-name (:check) ,ptype))))))
+
+); eval-when (compile eval)
+
+
+(def-type-vops fixnump check-fixnum nil object-not-fixnum-error
+  vm:even-fixnum-type vm:odd-fixnum-type)
+
+(def-type-vops functionp check-function function
+  object-not-function-error vm:function-pointer-type)
+
+(def-type-vops listp check-list list
+  object-not-list-error vm:list-pointer-type)
+
+#+nil ;; ### Only after we have real structures.
+(def-type-vops structurep check-structure structure
+  object-not-structure vm:structure-pointer-type)
+
+(def-type-vops structurep check-structure structure
+  object-not-structure-error vm:structure-header-type))
+
+(def-type-vops bignump check-bigunm bignum
+  object-not-bignum-error vm:bignum-type)
+
+(def-type-vops ratiop check-ratio ratio
+  object-not-ratio-error vm:ratio-type)
+
+(def-type-vops complexp check-complex complex
+  object-not-complex-error vm:complex-type)
+
+(def-type-vops single-float-p check-single-float single-float
+  object-not-single-float-error vm:single-float-type)
+
+(def-type-vops double-float-p check-double-float double-float
+  object-not-double-float-error vm:double-float-type)
+
+(def-type-vops simple-string-p check-simple-string simple-string
+  object-not-simple-string-error vm:simple-string-type)
+
+(def-type-vops simple-bit-vector-p check-simple-bit-vector simple-bit-vector
+  object-not-simple-bit-vector-error vm:simple-bit-vector-type)
+
+(def-type-vops simple-vector-p check-simple-vector simple-vector
+  object-not-simple-vector-error vm:simple-vector-type)
+
+(def-type-vops simple-array-unsigned-byte-2-p
+  check-simple-array-unsigned-byte-2
+  simple-array-unsigned-byte-2
+  object-not-simple-array-unsigned-byte-2-error
+  vm:simple-array-unsigned-byte-2-type)
+
+(def-type-vops simple-array-unsigned-byte-4-p
+  check-simple-array-unsigned-byte-4
+  simple-array-unsigned-byte-4
+  object-not-simple-array-unsigned-byte-4-error
+  vm:simple-array-unsigned-byte-4-type)
+
+(def-type-vops simple-array-unsigned-byte-8-p
+  check-simple-array-unsigned-byte-8
+  simple-array-unsigned-byte-8
+  object-not-simple-array-unsigned-byte-8-error
+  vm:simple-array-unsigned-byte-8-type)
+
+(def-type-vops simple-array-unsigned-byte-16-p
+  check-simple-array-unsigned-byte-16
+  simple-array-unsigned-byte-16
+  object-not-simple-array-unsigned-byte-16-error
+  vm:simple-array-unsigned-byte-16-type)
+
+(def-type-vops simple-array-unsigned-byte-32-p
+  check-simple-array-unsigned-byte-32
+  simple-array-unsigned-byte-32
+  object-not-simple-array-unsigned-byte-32-error
+  vm:simple-array-unsigned-byte-32-type)
+
+(def-type-vops simple-array-single-float-p check-simple-array-single-float
+  simple-array-single-float object-not-simple-array-single-float-error
+  vm:simple-array-single-float-type)
+
+(def-type-vops simple-array-double-float-p check-simple-array-double-float
+  simple-array-double-float object-not-simple-array-double-float-error
+  vm:simple-array-double-float-type)
+
+(def-type-vops base-char-p check-base-character base-character
+  object-not-base-character-error vm:base-character-type)
+
+(def-type-vops system-area-pointer-p check-system-area-pointer
+  system-area-pointer object-not-sap-error vm:sap-type)
+
+(def-type-vops weak-pointer-p check-weak-pointer weak-pointer
+  object-not-weak-pointer-error vm:weak-pointer-type)
+
+(def-type-vops array-header-p nil nil nil
+  vm:simple-array-type vm:complex-string-type vm:complex-bit-vector-type
+  vm:complex-vector-type vm:complex-array-type)
+
+(def-type-vops nil check-function-or-symbol nil object-not-function-or-symbol-error
+  vm:function-pointer-type vm:symbol-header-type)
+
+(def-type-vops stringp check-string nil object-not-string-error
+  vm:simple-string-type vm:complex-string-type)
+
+(def-type-vops bit-vector-p check-bit-vector nil object-not-bit-vector-error
+  vm:simple-bit-vector-type vm:complex-bit-vector-type)
+
+(def-type-vops vectorp check-vector nil object-not-vector-error
+  vm:simple-string-type vm:simple-bit-vector-type vm:simple-vector-type
+  vm:simple-array-unsigned-byte-2-type vm:simple-array-unsigned-byte-4-type
+  vm:simple-array-unsigned-byte-8-type vm:simple-array-unsigned-byte-16-type
+  vm:simple-array-unsigned-byte-32-type vm:simple-array-single-float-type
+  vm:simple-array-double-float-type vm:complex-string-type
+  vm:complex-bit-vector-type vm:complex-vector-type)
+
+(def-type-vops simple-array-p check-simple-array nil object-not-simple-array-error
+  vm:simple-array-type vm:simple-string-type vm:simple-bit-vector-type
+  vm:simple-vector-type vm:simple-array-unsigned-byte-2-type
+  vm:simple-array-unsigned-byte-4-type vm:simple-array-unsigned-byte-8-type
+  vm:simple-array-unsigned-byte-16-type vm:simple-array-unsigned-byte-32-type
+  vm:simple-array-single-float-type vm:simple-array-double-float-type)
+
+(def-type-vops arrayp check-array nil object-not-array-error
+  vm:simple-array-type vm:simple-string-type vm:simple-bit-vector-type
+  vm:simple-vector-type vm:simple-array-unsigned-byte-2-type
+  vm:simple-array-unsigned-byte-4-type vm:simple-array-unsigned-byte-8-type
+  vm:simple-array-unsigned-byte-16-type vm:simple-array-unsigned-byte-32-type
+  vm:simple-array-single-float-type vm:simple-array-double-float-type
+  vm:complex-string-type vm:complex-bit-vector-type vm:complex-vector-type
+  vm:complex-array-type)
+
+(def-type-vops numberp check-number nil object-not-number-error
+  vm:even-fixnum-type vm:odd-fixnum-type vm:bignum-type vm:ratio-type
+  vm:single-float-type vm:double-float-type vm:complex-type)
+
+(def-type-vops rationalp check-rational nil object-not-rational-error
+  vm:even-fixnum-type vm:odd-fixnum-type vm:ratio-type vm:bignum-type)
+
+(def-type-vops integerp check-integer nil object-not-integer-error
+  vm:even-fixnum-type vm:odd-fixnum-type vm:bignum-type)
+
+(def-type-vops floatp check-float nil object-not-float-error
+  vm:single-float-type vm:double-float-type)
+
+(def-type-vops realp check-real nil object-not-real-error
+  vm:even-fixnum-type vm:odd-fixnum-type vm:ratio-type vm:bignum-type
+  vm:single-float-type vm:double-float-type)
+
+
+;;;; Other integer ranges.
+
+;;; A (signed-byte 32) can be represented with either fixnum or a bignum with
+;;; exactly one digit.
+
+(define-vop (signed-byte-32-p type-predicate)
+  (:translate signed-byte-32-p)
+  (:generator 45
+    (let ((not-target (gen-label)))
+      (multiple-value-bind
+	  (yep nope)
+	  (if not-p
+	      (values not-target target)
+	      (values target not-target))
+	(inst andcc zero-tn value #x3)
+	(inst b :eq yep)
+	(test-type value temp nope t vm:other-pointer-type)
+	(loadw temp value 0 vm:other-pointer-type)
+	(inst cmp temp (+ (ash 1 vm:type-bits)
+			  vm:bignum-type))
+	(inst b (if not-p :ne :eq) target)
+	(inst nop)
+	(emit-label not-target)))))
+
+(define-vop (check-signed-byte-32 check-type)
+  (:generator 45
+    (let ((nope (generate-error-code vop object-not-signed-byte-32-error value))
+	  (yep (gen-label)))
+      (inst andcc temp value #x3)
+      (inst b :eq yep)
+      (test-type value temp nope t vm:other-pointer-type)
+      (loadw temp value 0 vm:other-pointer-type)
+      (inst cmp temp (+ (ash 1 vm:type-bits) vm:bignum-type))
+      (inst b :ne nope)
+      (inst nop)
+      (emit-label yep)
+      (move result value))))
+
+
+;;; An (unsigned-byte 32) can be represented with either a positive fixnum, a
+;;; bignum with exactly one positive digit, or a bignum with exactly two digits
+;;; and the second digit all zeros.
+
+(define-vop (unsigned-byte-32-p type-predicate)
+  (:translate unsigned-byte-32-p)
+  (:generator 45
+    (let ((not-target (gen-label))
+	  (single-word (gen-label))
+	  (fixnum (gen-label)))
+      (multiple-value-bind
+	  (yep nope)
+	  (if not-p
+	      (values not-target target)
+	      (values target not-target))
+	;; Is it a fixnum?
+	(inst andcc temp value #x3)
+	(inst b :eq fixnum)
+	(inst cmp value)
+
+	;; If not, is it an other pointer?
+	(test-type value temp nope t vm:other-pointer-type)
+	;; Get the header.
+	(loadw temp value 0 vm:other-pointer-type)
+	;; Is it one?
+	(inst cmp temp (+ (ash 1 vm:type-bits) vm:bignum-type))
+	(inst b :eq single-word)
+	;; If it's other than two, we can't be an (unsigned-byte 32)
+	(inst cmp temp (+ (ash 2 vm:type-bits) vm:bignum-type))
+	(inst b :ne nope)
+	;; Get the second digit.
+	(loadw temp value (1+ vm:bignum-digits-offset) vm:other-pointer-type)
+	;; All zeros, its an (unsigned-byte 32).
+	(inst cmp temp)
+	(inst b :eq yep)
+	(inst nop)
+	;; Otherwise, it isn't.
+	(inst b nope)
+	(inst nop)
+	
+	(emit-label single-word)
+	;; Get the single digit.
+	(loadw temp value vm:bignum-digits-offset vm:other-pointer-type)
+	(inst cmp temp)
+
+	;; positive implies (unsigned-byte 32).
+	(emit-label fixnum)
+	(inst b (if not-p :lt :ge) target)
+	(inst nop)
+
+	(emit-label not-target)))))	  
+
+(define-vop (check-unsigned-byte-32 check-type)
+  (:generator 45
+    (let ((nope
+	   (generate-error-code vop object-not-unsigned-byte-32-error value))
+	  (yep (gen-label))
+	  (fixnum (gen-label))
+	  (single-word (gen-label)))
+      ;; Is it a fixnum?
+      (inst andcc temp value #x3)
+      (inst b :eq fixnum)
+      (inst cmp value)
+
+      ;; If not, is it an other pointer?
+      (test-type value temp nope t vm:other-pointer-type)
+      ;; Get the number of digits.
+      (loadw temp value 0 vm:other-pointer-type)
+      ;; Is it one?
+      (inst cmp temp (+ (ash 1 vm:type-bits) vm:bignum-type))
+      (inst b :eq single-word)
+      ;; If it's other than two, we can't be an (unsigned-byte 32)
+      (inst cmp temp (+ (ash 2 vm:type-bits) vm:bignum-type))
+      (inst b :ne nope)
+      ;; Get the second digit.
+      (loadw temp value (1+ vm:bignum-digits-offset) vm:other-pointer-type)
+      ;; All zeros, its an (unsigned-byte 32).
+      (inst cmp temp)
+      (inst b :eq yep)
+      ;; Otherwise, it isn't.
+      (inst b :ne nope)
+      (inst nop)
+      
+      (emit-label single-word)
+      ;; Get the single digit.
+      (loadw temp value vm:bignum-digits-offset vm:other-pointer-type)
+      ;; positive implies (unsigned-byte 32).
+      (inst cmp temp)
+      
+      (emit-label fixnum)
+      (inst b :lt nope)
+      (inst nop)
+      
+      (emit-label yep)
+      (move result value))))
+
+
+
+
+;;;; List/symbol types:
+;;; 
+;;; symbolp (or symbol (eq nil))
+;;; consp (and list (not (eq nil)))
+
+(define-vop (symbolp type-predicate)
+  (:translate symbolp)
+  (:generator 12
+    (let* ((drop-thru (gen-label))
+	   (is-symbol-label (if not-p drop-thru target)))
+      (inst cmp value null-tn)
+      (inst b :eq is-symbol-label)
+      (test-type value temp target not-p vm:symbol-header-type)
+      (emit-label drop-thru))))
+
+(define-vop (check-symbol check-type)
+  (:generator 12
+    (let ((drop-thru (gen-label))
+	  (error (generate-error-code vop object-not-symbol-error value)))
+      (inst cmp value null-tn)
+      (inst b :eq drop-thru)
+      (test-type value temp error t vm:symbol-header-type)
+      (emit-label drop-thru)
+      (move result value))))
+  
+(define-vop (consp type-predicate)
+  (:translate consp)
+  (:generator 8
+    (let* ((drop-thru (gen-label))
+	   (is-not-cons-label (if not-p target drop-thru)))
+      (inst cmp value null-tn)
+      (inst b :eq is-not-cons-label)
+      (test-type value temp target not-p vm:list-pointer-type)
+      (emit-label drop-thru))))
+
+(define-vop (check-cons check-type)
+  (:generator 8
+    (let ((error (generate-error-code vop object-not-cons-error value)))
+      (inst cmp value null-tn)
+      (inst b :eq error)
+      (test-type value temp error t vm:list-pointer-type)
+      (move result value))))
+
+
+;;;; Function Coercion
+
+;;; If not a function, get the symbol value and test for that being a
+;;; function.  Since we test for a function rather than the unbound
+;;; marker, this works on NIL.
+;;;
+(define-vop (coerce-to-function)
+  (:args (object :scs (descriptor-reg)
+		 :target result))
+  (:results (result :scs (descriptor-reg)))
+  (:temporary (:type random  :scs (non-descriptor-reg)) nd-temp)
+  (:temporary (:scs (descriptor-reg)) saved-object)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 0
+    (let ((not-function-label (gen-label))
+	  (not-coercable-label (gen-label))
+	  (done-label (gen-label)))
+      (test-type object nd-temp not-function-label t
+		 vm:function-pointer-type)
+      (move result object)
+      (emit-label done-label)
+
+      (assemble (*elsewhere*)
+	(emit-label not-function-label)
+	(test-type object nd-temp not-coercable-label t
+		   vm:symbol-header-type)
+	(move saved-object object)
+	(loadw result object vm:symbol-function-slot vm:other-pointer-type)
+	(test-type result nd-temp done-label nil
+		   vm:function-pointer-type)
+	(error-call vop undefined-symbol-error saved-object)
+	
+	(emit-label not-coercable-label)
+	(error-call vop object-not-coercable-to-function-error object)))))
+
+(define-vop (fast-safe-coerce-to-function)
+  (:args (object :scs (descriptor-reg)
+		 :target result))
+  (:results (result :scs (descriptor-reg)))
+  (:temporary (:type random  :scs (non-descriptor-reg)) nd-temp)
+  (:temporary (:scs (descriptor-reg)) saved-object)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 10
+    (let ((not-function-label (gen-label))
+	  (done-label (gen-label)))
+      (test-type object nd-temp not-function-label t vm:function-pointer-type)
+      (move result object)
+      (emit-label done-label)
+
+      (assemble (*elsewhere*)
+	(emit-label not-function-label)
+	(move saved-object object)
+	(loadw result object vm:symbol-function-slot vm:other-pointer-type)
+	(test-type result nd-temp done-label nil vm:function-pointer-type)
+	(error-call vop undefined-symbol-error saved-object)))))
diff --git a/compiler/sparc/values.lisp b/compiler/sparc/values.lisp
new file mode 100644
index 000000000..b32dae5cf
--- /dev/null
+++ b/compiler/sparc/values.lisp
@@ -0,0 +1,89 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the Spice Lisp project at
+;;; Carnegie-Mellon University, and has been placed in the public domain.
+;;; If you want to use this code or any part of Spice Lisp, please contact
+;;; Scott Fahlman (FAHLMAN@CMUC). 
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/values.lisp,v 1.1 1990/11/30 17:05:10 wlott Exp $
+;;;
+;;;    This file contains the implementation of unknown-values VOPs.
+;;;
+;;; Written by Rob MacLachlan
+;;;
+;;; Converted for SPARC by William Lott.
+;;; 
+
+(in-package "SPARC")
+
+(define-vop (reset-stack-pointer)
+  (:args (ptr :scs (any-reg)))
+  (:generator 1
+    (move csp-tn ptr)))
+
+
+;;; Push some values onto the stack, returning the start and number of values
+;;; pushed as results.  It is assumed that the Vals are wired to the standard
+;;; argument locations.  Nvals is the number of values to push.
+;;;
+;;; The generator cost is pseudo-random.  We could get it right by defining a
+;;; bogus SC that reflects the costs of the memory-to-memory moves for each
+;;; operand, but this seems unworthwhile.
+;;;
+(define-vop (push-values)
+  (:args (vals :more t))
+  (:results (start :scs (any-reg) :from :load)
+	    (count :scs (any-reg)))
+  (:info nvals)
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:generator 20
+    (inst move start csp-tn)
+    (inst add csp-tn csp-tn (* nvals vm:word-bytes))
+    (do ((val vals (tn-ref-across val))
+	 (i 0 (1+ i)))
+	((null val))
+      (let ((tn (tn-ref-tn val)))
+	(sc-case tn
+	  (descriptor-reg
+	   (storew tn start i))
+	  (control-stack
+	   (load-stack-tn temp tn)
+	   (storew temp start i)))))
+    (inst li count (fixnum nvals))))
+
+;;; Push a list of values on the stack, returning Start and Count as used in
+;;; unknown values continuations.
+;;;
+(define-vop (values-list)
+  (:args (arg :scs (descriptor-reg) :target list))
+  (:arg-types list)
+  (:policy :fast-safe)
+  (:results (start :scs (any-reg))
+	    (count :scs (any-reg)))
+  (:temporary (:scs (descriptor-reg) :type list :from (:argument 0)) list)
+  (:temporary (:scs (descriptor-reg)) temp)
+  (:temporary (:scs (non-descriptor-reg) :type random) ndescr)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 0
+    (let ((loop (gen-label))
+	  (done (gen-label)))
+
+      (move list arg)
+      (move start csp-tn)
+
+      (emit-label loop)
+      (inst cmp list null-tn)
+      (inst b :eq done)
+      (loadw temp list vm:cons-car-slot vm:list-pointer-type)
+      (loadw list list vm:cons-cdr-slot vm:list-pointer-type)
+      (inst add csp-tn csp-tn vm:word-bytes)
+      (storew temp csp-tn -1)
+      (test-type list ndescr loop nil vm:list-pointer-type)
+      (error-call vop bogus-argument-to-values-list-error list)
+
+      (emit-label done)
+      (inst sub count csp-tn start))))
+
diff --git a/compiler/sparc/vm.lisp b/compiler/sparc/vm.lisp
new file mode 100644
index 000000000..1663ab498
--- /dev/null
+++ b/compiler/sparc/vm.lisp
@@ -0,0 +1,334 @@
+;;; -*- Package: SPARC -*-
+;;;
+;;; **********************************************************************
+;;; This code was written as part of the CMU Common Lisp project at
+;;; Carnegie Mellon University, and has been placed in the public
+;;; domain.  If you want to use this code or any part of CMU Common
+;;; Lisp, please contact Scott Fahlman (Scott.Fahlman@CS.CMU.EDU)
+;;; **********************************************************************
+;;;
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/vm.lisp,v 1.1 1990/11/30 17:03:26 wlott Exp $
+;;;
+;;; This file contains the VM definition for the SPARC.
+;;;
+;;; Written by William Lott.
+;;;
+(in-package "SPARC")
+
+
+;;;; Define the registers
+
+(eval-when (compile eval)
+
+(defmacro defreg (name offset)
+  (let ((offset-sym (symbolicate name "-OFFSET")))
+    `(progn
+       (eval-when (compile eval load)
+	 (defconstant ,offset-sym ,offset))
+       (setf (svref *register-names* ,offset-sym) ,(symbol-name name)))))
+
+(defmacro defregset (name &rest regs)
+  `(eval-when (compile eval load)
+     (defconstant ,name
+       (list ,@(mapcar #'(lambda (name) (symbolicate name "-OFFSET")) regs)))))
+
+); eval-when (compile eval)
+
+(defvar *register-names* (make-array 32 :initial-element nil))
+
+;; Globals.  These are difficult to extract from a sigcontext.
+(defreg zero 0)
+(defreg alloc 1)
+(defreg null 2)
+(defreg csp 3)
+(defreg cfp 4)
+(defreg bsp 5)
+(defreg nfp 6)
+(defreg cfunc 7)
+
+;; Outs.  These get clobbered when we call into C.
+(defreg nl0 8)
+(defreg nl1 9)
+(defreg nl2 10)
+(defreg nl3 11)
+(defreg nl4 12)
+(defreg nl5 13)
+(defreg nsp 14)
+(defreg nargs 15)
+
+;; Locals.  These are preserved when we call into C.
+(defreg a0 16)
+(defreg a1 17)
+(defreg a2 18)
+(defreg a3 19)
+(defreg a4 20)
+(defreg a5 21)
+(defreg ocfp 22)
+(defreg lra 23)
+
+;; Ins.  These are preserved just like locals.
+(defreg cname 24)
+(defreg lexenv 25)
+(defreg l0 26)
+(defreg l1 27)
+(defreg l2 28)
+(defreg code 29)
+;; we can't touch reg 30 if we ever want to return
+(defreg lip 31)
+
+(defregset non-descriptor-regs
+  nl0 nl1 nl2 nl3 nl4 nl5 cfunc nargs nfp)
+
+(defregset descriptor-regs
+  a0 a1 a2 a3 a4 a5 ocfp lra cname lexenv l0 l1 l2)
+
+(defregset register-arg-offsets
+  a0 a1 a2 a3 a4 a5)
+
+
+
+;;;; SB and SC definition:
+
+(define-storage-base registers :finite :size 32)
+(define-storage-base float-registers :finite :size 32)
+(define-storage-base control-stack :unbounded :size 8)
+(define-storage-base non-descriptor-stack :unbounded :size 0)
+(define-storage-base constant :non-packed)
+(define-storage-base immediate-constant :non-packed)
+
+;;;
+;;; Handy macro so we don't have to keep changing all the numbers whenever
+;;; we insert a new storage class.
+;;; 
+(defmacro define-storage-classes (&rest classes)
+  (do ((forms (list 'progn)
+	      (let* ((class (car classes))
+		     (sc-name (car class))
+		     (constant-name (intern (concatenate 'simple-string
+							 (string sc-name)
+							 "-SC-NUMBER"))))
+		(list* `(define-storage-class ,sc-name ,index
+			  ,@(cdr class))
+		       `(defconstant ,constant-name ,index)
+		       `(export ',constant-name)
+		       forms)))
+       (index 0 (1+ index))
+       (classes classes (cdr classes)))
+      ((null classes)
+       (nreverse forms))))
+
+(define-storage-classes
+
+  ;; Non-immediate contstants in the constant pool
+  (constant constant)
+
+  ;; ZERO and NULL are in registers.
+  (zero immediate-constant)
+  (null immediate-constant)
+
+  ;; Anything else that can be an immediate.
+  (immediate immediate-constant)
+
+
+  ;; **** The stacks.
+
+  ;; The control stack.  (Scanned by GC)
+  (control-stack control-stack)
+
+  ;; The non-descriptor stacks.
+  (signed-stack non-descriptor-stack) ; (signed-byte 32)
+  (unsigned-stack non-descriptor-stack) ; (unsigned-byte 32)
+  (base-character-stack non-descriptor-stack) ; non-descriptor characters.
+  (sap-stack non-descriptor-stack) ; System area pointers.
+  (single-stack non-descriptor-stack) ; single-floats
+  (double-stack non-descriptor-stack :element-size 2) ; double floats.
+
+
+  ;; **** Things that can go in the integer registers.
+
+  ;; Immediate descriptor objects.  Don't have to be seen by GC, but nothing
+  ;; bad will happen if they are.  (fixnums, characters, header values, etc).
+  (any-reg
+   registers
+   :locations #.(append non-descriptor-regs descriptor-regs)
+   :constant-scs (zero immediate)
+   :save-p t
+   :alternate-scs (control-stack))
+
+  ;; Pointer descriptor objects.  Must be seen by GC.
+  (descriptor-reg registers
+   :locations #.descriptor-regs
+   :constant-scs (constant null immediate)
+   :save-p t
+   :alternate-scs (control-stack))
+
+  ;; Non-Descriptor characters
+  (base-character-reg registers
+   :locations #.non-descriptor-regs
+   :constant-scs (immediate)
+   :save-p t
+   :alternate-scs (base-character-stack))
+
+  ;; Non-Descriptor SAP's (arbitrary pointers into address space)
+  (sap-reg registers
+   :locations #.non-descriptor-regs
+   :constant-scs (immediate)
+   :save-p t
+   :alternate-scs (sap-stack))
+
+  ;; Non-Descriptor (signed or unsigned) numbers.
+  (signed-reg registers
+   :locations #.non-descriptor-regs
+   :constant-scs (zero immediate)
+   :save-p t
+   :alternate-scs (signed-stack))
+  (unsigned-reg registers
+   :locations #.non-descriptor-regs
+   :constant-scs (zero immediate)
+   :save-p t
+   :alternate-scs (unsigned-stack))
+
+  ;; Random objects that must not be seen by GC.  Used only as temporaries.
+  (non-descriptor-reg registers
+   :locations #.non-descriptor-regs)
+
+  ;; Pointers to the interior of objects.  Used only as an temporary.
+  (interior-reg registers
+   :locations (#.lip-offset))
+
+
+  ;; **** Things that can go in the floating point registers.
+
+  ;; Non-Descriptor single-floats.
+  (single-reg float-registers
+   :locations (0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
+   ;; ### Note: We really should have every location listed, but then we
+   ;; would have to make load-tns work with element-sizes other than 1.
+   :constant-scs ()
+   :save-p t
+   :alternate-scs (single-stack))
+
+  ;; Non-Descriptor double-floats.
+  (double-reg float-registers
+   :locations (0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
+   ;; ### Note: load-tns don't work with an element-size other than 1.
+   ;; :element-size 2
+   :constant-scs ()
+   :save-p t
+   :alternate-scs (double-stack))
+
+
+  ;; A catch or unwind block.
+  (catch-block control-stack :element-size vm:catch-block-size))
+
+
+
+;;;; Make some random tns for important registers.
+
+(eval-when (compile eval)
+
+(defmacro defregtn (name sc)
+  (let ((offset-sym (symbolicate name "-OFFSET"))
+	(tn-sym (symbolicate name "-TN")))
+    `(defparameter ,tn-sym
+       (make-random-tn :kind :normal
+		       :sc (sc-or-lose ',sc)
+		       :offset ,offset-sym))))
+
+); eval-when (compile eval)
+
+(defregtn zero any-reg)
+(defregtn null descriptor-reg)
+(defregtn code descriptor-reg)
+(defregtn alloc any-reg)
+
+(defregtn nargs any-reg)
+(defregtn bsp any-reg)
+(defregtn csp any-reg)
+(defregtn cfp any-reg)
+(defregtn ocfp any-reg)
+(defregtn nsp any-reg)
+
+
+
+;;;; Side-Effect Classes
+
+(export '(vop-attributes))
+
+(def-boolean-attribute vop
+  any)
+
+
+;;; Immediate-Constant-SC  --  Interface
+;;;
+;;; If value can be represented as an immediate constant, then return the
+;;; appropriate SC number, otherwise return NIL.
+;;;
+(def-vm-support-routine immediate-constant-sc (value)
+  (typecase value
+    ((integer 0 0)
+     (sc-number-or-lose 'zero *backend*))
+    (null
+     (sc-number-or-lose 'null *backend*))
+    ((or fixnum system-area-pointer character)
+     (sc-number-or-lose 'immediate *backend*))
+    (symbol
+     (if (static-symbol-p value)
+	 (sc-number-or-lose 'immediate *backend*)
+	 nil))))
+
+
+;;;; Function Call Parameters
+
+;;; The SC numbers for register and stack arguments/return values.
+;;;
+(defconstant register-arg-scn (meta-sc-number-or-lose 'descriptor-reg))
+(defconstant immediate-arg-scn (meta-sc-number-or-lose 'any-reg))
+(defconstant control-stack-arg-scn (meta-sc-number-or-lose 'control-stack))
+
+(eval-when (compile load eval)
+
+;;; Offsets of special stack frame locations
+(defconstant ocfp-save-offset 0)
+(defconstant lra-save-offset 1)
+(defconstant nfp-save-offset 2)
+
+;;; The number of arguments/return values passed in registers.
+;;;
+(defconstant register-arg-count 6)
+
+;;; Names to use for the argument registers.
+;;; 
+(defconstant register-arg-names '(a0 a1 a2 a3 a4 a5))
+
+); Eval-When (Compile Load Eval)
+
+
+;;; A list of TN's describing the register arguments.
+;;;
+(defparameter register-arg-tns
+  (mapcar #'(lambda (n)
+	      (make-random-tn :kind :normal
+			      :sc (sc-or-lose 'descriptor-reg)
+			      :offset n))
+	  register-arg-offsets))
+
+
+
+;;; LOCATION-PRINT-NAME  --  Interface
+;;;
+;;;    This function is called by debug output routines that want a pretty name
+;;; for a TN's location.  It returns a thing that can be printed with PRINC.
+;;;
+(def-vm-support-routine location-print-name (tn)
+  (declare (type tn tn))
+  (let ((sb (sb-name (sc-sb (tn-sc tn))))
+	(offset (tn-offset tn)))
+    (ecase sb
+      (registers (or (svref *register-names* offset)
+		     (format nil "R~D" offset)))
+      (float-registers (format nil "F~D" offset))
+      (control-stack (format nil "CS~D" offset))
+      (non-descriptor-stack (format nil "NS~D" offset))
+      (constant (format nil "Const~D" offset))
+      (immediate-constant "Immed"))))
-- 
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