-;;;
-;;; Written by William Lott.
-;;;
+;;;; the PPC VM definition of SAP operations
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+
(in-package "SB!VM")
\f
;;;; 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-lowtag)))
-;;;
(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)
(:temporary (:sc non-descriptor-reg :offset nl3-offset) pa-flag)
(:results (res :scs (descriptor-reg)))
- (:note "SAP to pointer coercion")
+ (:note "SAP to pointer coercion")
(:generator 20
(with-fixed-allocation (res pa-flag ndescr sap-widetag sap-size)
(storew sap res sap-pointer-slot other-pointer-lowtag))))
-;;;
+
(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))))
+ :scs (sap-reg)
+ :load-if (not (location= x y))))
(:results (y :scs (sap-reg)
- :load-if (not (location= x y))))
+ :load-if (not (location= x y))))
(:note "SAP move")
(: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-arg)
(:args (x :target y
- :scs (sap-reg))
- (fp :scs (any-reg)
- :load-if (not (sc-is y sap-reg))))
+ :scs (sap-reg))
+ (fp :scs (any-reg)
+ :load-if (not (sc-is y sap-reg))))
(:results (y))
(:note "SAP argument move")
(:generator 0
(move y x))
(sap-stack
(storew x fp (tn-offset y))))))
-;;;
+
(define-move-vop move-sap-arg :move-arg
(descriptor-reg sap-reg) (sap-reg))
-
;;; Use standard MOVE-ARG + coercion to move an untagged sap to a
;;; descriptor passing location.
-;;;
(define-move-vop move-arg :move-arg
(sap-reg) (descriptor-reg))
-
-
\f
;;;; SAP-INT and INT-SAP
-
(define-vop (sap-int)
(:args (sap :scs (sap-reg) :target int))
(:arg-types system-area-pointer)
(:policy :fast-safe)
(:generator 1
(move sap int)))
-
-
\f
;;;; POINTER+ and POINTER-
-
(define-vop (pointer+)
(:translate sap+)
(:args (ptr :scs (sap-reg))
- (offset :scs (signed-reg)))
+ (offset :scs (signed-reg)))
(:arg-types system-area-pointer signed-num)
(:results (res :scs (sap-reg)))
(:result-types system-area-pointer)
(define-vop (pointer-)
(:translate sap-)
(:args (ptr1 :scs (sap-reg))
- (ptr2 :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)))
-
-
\f
;;;; mumble-SYSTEM-REF and mumble-SYSTEM-SET
-
(macrolet ((def-system-ref-and-set
- (ref-name set-name sc type size &optional signed)
- (let ((ref-name-c (symbolicate ref-name "-C"))
- (set-name-c (symbolicate set-name "-C")))
- `(progn
- (define-vop (,ref-name)
- (:translate ,ref-name)
- (:policy :fast-safe)
- (:args (sap :scs (sap-reg))
- (offset :scs (signed-reg)))
- (:arg-types system-area-pointer signed-num)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- (:generator 5
- (inst ,(ecase size
- (:byte 'lbzx)
- (:short (if signed 'lhax 'lhzx))
- (:long 'lwzx)
- (:single 'lfsx)
- (:double 'lfdx))
- result sap offset)
- ,@(when (and (eq size :byte) signed)
- '((inst extsb result result)))))
- (define-vop (,ref-name-c)
- (:translate ,ref-name)
- (:policy :fast-safe)
- (:args (sap :scs (sap-reg)))
- (:arg-types system-area-pointer (:constant (signed-byte 16)))
- (:info offset)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- (:generator 4
- (inst ,(ecase size
- (:byte 'lbz)
- (:short (if signed 'lha 'lhz))
- (:long 'lwz)
- (:single 'lfs)
- (:double 'lfd))
- result sap offset)
- ,@(when (and (eq size :byte) signed)
- '((inst extsb result result)))))
- (define-vop (,set-name)
- (:translate ,set-name)
- (:policy :fast-safe)
- (:args (sap :scs (sap-reg))
- (offset :scs (signed-reg))
- (value :scs (,sc) :target result))
- (:arg-types system-area-pointer signed-num ,type)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- (:generator 5
- (inst ,(ecase size
- (:byte 'stbx)
- (:short 'sthx)
- (:long 'stwx)
- (:single 'stfsx)
- (:double 'stfdx))
- value sap offset)
- (unless (location= result value)
- ,@(case size
- (:single
- '((inst frsp result value)))
- (:double
- '((inst fmr result value)))
- (t
- '((inst mr result value)))))))
- (define-vop (,set-name-c)
- (:translate ,set-name)
- (:policy :fast-safe)
- (:args (sap :scs (sap-reg))
- (value :scs (,sc) :target result))
- (:arg-types system-area-pointer (:constant (signed-byte 16)) ,type)
- (:info offset)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- (:generator 4
- (inst ,(ecase size
- (:byte 'stb)
- (:short 'sth)
- (:long 'stw)
- (:single 'stfs)
- (:double 'stfd))
- value sap offset)
- (unless (location= result value)
- ,@(case size
- (:single
- '((inst frsp result value)))
- (:double
- '((inst fmr result value)))
- (t
- '((inst mr result value)))))))))))
+ (ref-name set-name sc type size &optional signed)
+ (let ((ref-name-c (symbolicate ref-name "-C"))
+ (set-name-c (symbolicate set-name "-C")))
+ `(progn
+ (define-vop (,ref-name)
+ (:translate ,ref-name)
+ (:policy :fast-safe)
+ (:args (sap :scs (sap-reg))
+ (offset :scs (signed-reg)))
+ (:arg-types system-area-pointer signed-num)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ (:generator 5
+ (inst ,(ecase size
+ (:byte 'lbzx)
+ (:short (if signed 'lhax 'lhzx))
+ (:long 'lwzx)
+ (:single 'lfsx)
+ (:double 'lfdx))
+ result sap offset)
+ ,@(when (and (eq size :byte) signed)
+ '((inst extsb result result)))))
+ (define-vop (,ref-name-c)
+ (:translate ,ref-name)
+ (:policy :fast-safe)
+ (:args (sap :scs (sap-reg)))
+ (:arg-types system-area-pointer (:constant (signed-byte 16)))
+ (:info offset)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ (:generator 4
+ (inst ,(ecase size
+ (:byte 'lbz)
+ (:short (if signed 'lha 'lhz))
+ (:long 'lwz)
+ (:single 'lfs)
+ (:double 'lfd))
+ result sap offset)
+ ,@(when (and (eq size :byte) signed)
+ '((inst extsb result result)))))
+ (define-vop (,set-name)
+ (:translate ,set-name)
+ (:policy :fast-safe)
+ (:args (sap :scs (sap-reg))
+ (offset :scs (signed-reg))
+ (value :scs (,sc) :target result))
+ (:arg-types system-area-pointer signed-num ,type)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ (:generator 5
+ (inst ,(ecase size
+ (:byte 'stbx)
+ (:short 'sthx)
+ (:long 'stwx)
+ (:single 'stfsx)
+ (:double 'stfdx))
+ value sap offset)
+ (unless (location= result value)
+ ,@(case size
+ (:single
+ '((inst frsp result value)))
+ (:double
+ '((inst fmr result value)))
+ (t
+ '((inst mr result value)))))))
+ (define-vop (,set-name-c)
+ (:translate ,set-name)
+ (:policy :fast-safe)
+ (:args (sap :scs (sap-reg))
+ (value :scs (,sc) :target result))
+ (:arg-types system-area-pointer (:constant (signed-byte 16)) ,type)
+ (:info offset)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ (:generator 4
+ (inst ,(ecase size
+ (:byte 'stb)
+ (:short 'sth)
+ (:long 'stw)
+ (:single 'stfs)
+ (:double 'stfd))
+ value sap offset)
+ (unless (location= result value)
+ ,@(case size
+ (:single
+ '((inst frsp result value)))
+ (:double
+ '((inst fmr result value)))
+ (t
+ '((inst mr result value)))))))))))
(def-system-ref-and-set sap-ref-8 %set-sap-ref-8
unsigned-reg positive-fixnum :byte nil)
(def-system-ref-and-set signed-sap-ref-8 %set-signed-sap-ref-8
signed-reg signed-num :long t)
(def-system-ref-and-set sap-ref-sap %set-sap-ref-sap
sap-reg system-area-pointer :long)
+ (def-system-ref-and-set sap-ref-lispobj %set-sap-ref-lispobj
+ descriptor-reg * :long)
(def-system-ref-and-set sap-ref-single %set-sap-ref-single
single-reg single-float :single)
(def-system-ref-and-set sap-ref-double %set-sap-ref-double
double-reg double-float :double))
-
-
\f
;;; Noise to convert normal lisp data objects into SAPs.
-
(define-vop (vector-sap)
(:translate vector-sap)
(:policy :fast-safe)
(:result-types system-area-pointer)
(:generator 2
(inst addi sap vector
- (- (* vector-data-offset n-word-bytes) other-pointer-lowtag))))
-
-\f
-;;; Transforms for 64-bit SAP accessors.
-#|
-(deftransform sap-ref-64 ((sap offset) (* *))
- '(logior (ash (sap-ref-32 sap offset) 32)
- (sap-ref-32 sap (+ offset 4))))
-
-(deftransform signed-sap-ref-64 ((sap offset) (* *))
- '(logior (ash (signed-sap-ref-32 sap offset) 32)
- (sap-ref-32 sap (+ 4 offset))))
-
-(deftransform %set-sap-ref-64 ((sap offset value) (* * *))
- '(progn
- (%set-sap-ref-32 sap offset (ash value -32))
- (%set-sap-ref-32 sap (+ offset 4) (logand value #xffffffff))))
-
-(deftransform %set-signed-sap-ref-64 ((sap offset value) (* * *))
- '(progn
- (%set-signed-sap-ref-32 sap offset (ash value -32))
- (%set-sap-ref-32 sap (+ 4 offset) (logand value #xffffffff))))
-|#
\ No newline at end of file
+ (- (* vector-data-offset n-word-bytes) other-pointer-lowtag))))
projects / sbcl.git / blobdiff