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Commit 646c3e32 authored by dtc's avatar dtc
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Add the FSTPD instruction.

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...@@ -7,7 +7,7 @@ ...@@ -7,7 +7,7 @@
;;; Scott Fahlman or slisp-group@cs.cmu.edu. ;;; Scott Fahlman or slisp-group@cs.cmu.edu.
;;; ;;;
(ext:file-comment (ext:file-comment
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/x86/insts.lisp,v 1.10 1997/09/29 16:51:18 dtc Exp $") "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/x86/insts.lisp,v 1.11 1997/10/18 04:09:50 dtc Exp $")
;;; ;;;
;;; ********************************************************************** ;;; **********************************************************************
;;; ;;;
...@@ -2434,7 +2434,6 @@ ...@@ -2434,7 +2434,6 @@
;;; ;;;
(define-instruction fstp (segment dest) (define-instruction fstp (segment dest)
(:printer floating-point ((op '(#b001 #b011)))) (:printer floating-point ((op '(#b001 #b011))))
(:printer floating-point-fp ((op '(#b101 #b011))))
(:emitter (:emitter
(cond ((fp-reg-tn-p dest) (cond ((fp-reg-tn-p dest)
(emit-byte segment #b11011101) (emit-byte segment #b11011101)
...@@ -2443,6 +2442,19 @@ ...@@ -2443,6 +2442,19 @@
(emit-byte segment #b11011001) (emit-byte segment #b11011001)
(emit-fp-op segment dest #b011))))) (emit-fp-op segment dest #b011)))))
;;; ;;;
;;; store double from st(0) and pop
;;;
(define-instruction fstpd (segment dest)
(:printer floating-point ((op '(#b101 #b011))))
(:printer floating-point-fp ((op '(#b101 #b011))))
(:emitter
(cond ((fp-reg-tn-p dest)
(emit-byte segment #b11011101)
(emit-fp-op segment dest #b011))
(t
(emit-byte segment #b11011101)
(emit-fp-op segment dest #b011)))))
;;;
;;; decrement stack-top pointer ;;; decrement stack-top pointer
;;; ;;;
(define-instruction fdecstp (segment) (define-instruction fdecstp (segment)
......
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