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Carl Shapiro
cmucl
Commits
52cb4577
Commit
52cb4577
authored
34 years ago
by
wlott
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parent
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compiler/mips/c-call.lisp
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compiler/mips/c-call.lisp
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52cb4577
;;; -*- Package: MIPS -*-
;;;
;;; **********************************************************************
;;; 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/mips/c-call.lisp,v 1.1 1990/11/03 03:23:55 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
"MIPS"
)
(
def-vm-support-routine
make-call-out-nsp-tn
()
(
make-wired-tn
(
primitive-type-or-lose
'positive-fixnum
)
(
sc-number-or-lose
'any-reg
)
nsp-offset
))
(
def-vm-support-routine
make-call-out-argument-tns
(
arg-types
)
(
let
((
stack-frame-size
0
)
(
did-int-arg
nil
)
(
float-args
0
))
(
collect
((
tns
))
(
dolist
(
type
arg-types
)
(
let
((
name
(
if
(
consp
type
)
(
car
type
)
type
)))
(
ecase
name
((
unsigned-byte
port
)
(
if
(
<
stack-frame-size
4
)
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'unsigned-byte-32
)
(
sc-number-or-lose
'unsigned-reg
)
(
+
stack-frame-size
4
)))
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'unsigned-byte-32
)
(
sc-number-or-lose
'unsigned-stack
)
stack-frame-size
)))
(
incf
stack-frame-size
)
(
setf
did-int-arg
t
))
(
signed-byte
(
if
(
<
stack-frame-size
4
)
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'signed-byte-32
)
(
sc-number-or-lose
'signed-reg
)
(
+
stack-frame-size
4
)))
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'signed-byte-32
)
(
sc-number-or-lose
'signed-stack
)
stack-frame-size
)))
(
incf
stack-frame-size
)
(
setf
did-int-arg
t
))
(
system-area-pointer
(
if
(
<
stack-frame-size
4
)
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'system-area-pointer
)
(
sc-number-or-lose
'sap-reg
)
(
+
stack-frame-size
4
)))
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'system-area-pointer
)
(
sc-number-or-lose
'sap-stack
)
stack-frame-size
)))
(
incf
stack-frame-size
)
(
setf
did-int-arg
t
))
(
double-float
;; Round to a dual-word.
(
setf
stack-frame-size
(
logandc2
(
1+
stack-frame-size
)
1
))
(
cond
((
>=
stack-frame-size
4
)
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'double-float
)
(
sc-number-or-lose
'double-stack
)
stack-frame-size
)))
((
and
(
not
did-int-arg
)
(
<
float-args
2
))
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'double-float
)
(
sc-number-or-lose
'double-reg
)
(
+
(
*
float-args
2
)
12
))))
(
t
(
error
"Can't put floats in int regs yet."
)))
(
incf
stack-frame-size
2
)
(
incf
float-args
))
(
single-float
(
cond
((
>=
stack-frame-size
4
)
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'single-float
)
(
sc-number-or-lose
'single-stack
)
stack-frame-size
)))
((
and
(
not
did-int-arg
)
(
<
float-args
2
))
(
tns
(
make-wired-tn
(
primitive-type-or-lose
'single-float
)
(
sc-number-or-lose
'single-reg
)
(
+
(
*
float-args
2
)
12
))))
(
t
(
error
"Can't put floats in int regs yet."
)))
(
incf
stack-frame-size
)
(
incf
float-args
)))))
(
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
)
(
make-wired-tn
(
primitive-type-or-lose
'unsigned-byte-32
)
(
sc-number-or-lose
'unsigned-reg
)
2
))
(
signed-byte
(
make-wired-tn
(
primitive-type-or-lose
'signed-byte-32
)
(
sc-number-or-lose
'signed-reg
)
2
))
(
system-area-pointer
(
make-wired-tn
(
primitive-type-or-lose
'system-area-pointer
)
(
sc-number-or-lose
'sap-reg
)
2
))
(
double-float
(
make-wired-tn
(
primitive-type-or-lose
'double-float
)
(
sc-number-or-lose
'double-reg
)
0
))
(
single-float
(
make-wired-tn
(
primitive-type-or-lose
'single-float
)
(
sc-number-or-lose
'single-reg
)
0
)))))
(
define-vop
(
foreign-symbol-address
)
(
:info
foreign-symbol
)
(
:results
(
res
:scs
(
sap-reg
)))
(
:generator
2
(
inst
li
res
(
make-fixup
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
2
:to
(
:result
0
))
v0
)
(
:temporary
(
:sc
control-stack
:offset
nfp-save-offset
)
nfp-save
)
(
:vop-var
vop
)
(
:generator
0
(
let
((
lra-label
(
gen-label
))
(
cur-nfp
(
current-nfp-tn
vop
)))
(
when
cur-nfp
(
store-stack-tn
nfp-save
cur-nfp
))
(
inst
li
v0
(
make-fixup
function
:foreign
))
(
inst
jal
(
make-fixup
"call_into_c"
:foreign
))
(
inst
nop
)
(
when
cur-nfp
(
load-stack-tn
cur-nfp
nfp-save
)))))
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