-(in-package "SB!VM")
+;;;; the HPPA 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 (descriptor-reg)))
(:results (y :scs (sap-reg)))
(:note "system area pointer indirection")
(: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 (x :scs (sap-reg) :to (:eval 1)))
(:temporary (:scs (non-descriptor-reg)) ndescr)
(:generator 20
(with-fixed-allocation (y ndescr sap-widetag sap-size)
(storew x y 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))))
(:effects)
(:affected)
(:generator 0
(move x y)))
-;;;
(define-move-vop sap-move :move
(sap-reg) (sap-reg))
-
-;;; Move untagged sap arguments/return-values.
-;;;
-(define-vop (move-sap-argument)
+;;; Move untagged sap args/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))
(:generator 0
(sc-case y
(move x y))
(sap-stack
(storew x fp (tn-offset y))))))
-;;;
-(define-move-vop move-sap-argument :move-arg
+(define-move-vop move-sap-arg :move-arg
(descriptor-reg sap-reg) (sap-reg))
-
-;;; Use standard MOVE-ARGUMENT + coercion to move an untagged sap to a
+;;; Use standard MOVE-ARG + coercion to move an untagged sap to a
;;; descriptor passing location.
-;;;
-(define-move-vop move-argument :move-arg
+(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 int sap)))
-
-
\f
;;;; POINTER+ and POINTER-
-
(define-vop (pointer+)
(:translate sap+)
(:args (ptr :scs (sap-reg) :target res)
- (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 ptr1 ptr2 res)))
-
-
\f
;;;; mumble-SYSTEM-REF and mumble-SYSTEM-SET
-
(macrolet ((def-system-ref-and-set
- (ref-name set-name sc type size &optional signed)
+ (ref-name set-name sc type size &optional signed)
(let ((ref-name-c (symbolicate ref-name "-C"))
- (set-name-c (symbolicate set-name "-C")))
+ (set-name-c (symbolicate set-name "-C")))
`(progn
(define-vop (,ref-name)
- (:translate ,ref-name)
- (:policy :fast-safe)
- (:args (object :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 'ldbx)
- (:short 'ldhx)
- (:long 'ldwx)
- (:float 'fldx))
- offset object result)
- ,@(when (and signed (not (eq size :long)))
- `((inst extrs result 31 ,(ecase size
- (:byte 8)
- (:short 16))
- result)))))
+ (:translate ,ref-name)
+ (:policy :fast-safe)
+ (:args (object :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 'ldbx)
+ (:short 'ldhx)
+ (:long 'ldwx)
+ (:float 'fldx))
+ offset object result)
+ ,@(when (and signed (not (eq size :long)))
+ `((inst extrs result 31 ,(ecase size
+ (:byte 8)
+ (:short 16))
+ result)))))
(define-vop (,ref-name-c)
- (:translate ,ref-name)
- (:policy :fast-safe)
- (:args (object :scs (sap-reg)))
- (:arg-types system-area-pointer
- (:constant ,(if (eq size :float)
- '(signed-byte 5)
- '(signed-byte 14))))
- (:info offset)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- (:generator 4
- (inst ,(ecase size
- (:byte 'ldb)
- (:short 'ldh)
- (:long 'ldw)
- (:float 'flds))
- offset object result)
- ,@(when (and signed (not (eq size :long)))
- `((inst extrs result 31 ,(ecase size
- (:byte 8)
- (:short 16))
- result)))))
+ (:translate ,ref-name)
+ (:policy :fast-safe)
+ (:args (object :scs (sap-reg)))
+ (:arg-types system-area-pointer
+ (:constant ,(if (eq size :float)
+ '(signed-byte 5)
+ '(signed-byte 14))))
+ (:info offset)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ (:generator 4
+ (inst ,(ecase size
+ (:byte 'ldb)
+ (:short 'ldh)
+ (:long 'ldw)
+ (:float 'flds))
+ offset object result)
+ ,@(when (and signed (not (eq size :long)))
+ `((inst extrs result 31 ,(ecase size
+ (:byte 8)
+ (:short 16))
+ result)))))
(define-vop (,set-name)
- (:translate ,set-name)
- (:policy :fast-safe)
- (:args (object :scs (sap-reg)
- ,@(unless (eq size :float) '(:target sap)))
- (offset :scs (signed-reg))
- (value :scs (,sc) :target result))
- (:arg-types system-area-pointer signed-num ,type)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- ,@(unless (eq size :float)
- '((:temporary (:scs (sap-reg) :from (:argument 0)) sap)))
- (:generator 5
- ,@(if (eq size :float)
- `((inst fstx value offset object)
- (unless (location= value result)
- (inst funop :copy value result)))
- `((inst add object offset sap)
- (inst ,(ecase size (:byte 'stb) (:short 'sth) (:long 'stw))
- value 0 sap)
- (move value result)))))
+ (:translate ,set-name)
+ (:policy :fast-safe)
+ (:args (object :scs (sap-reg)
+ ,@(unless (eq size :float) '(:target sap)))
+ (offset :scs (signed-reg))
+ (value :scs (,sc) :target result))
+ (:arg-types system-area-pointer signed-num ,type)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ ,@(unless (eq size :float)
+ '((:temporary (:scs (sap-reg) :from (:argument 0)) sap)))
+ (:generator 5
+ ,@(if (eq size :float)
+ `((inst fstx value offset object)
+ (unless (location= value result)
+ (inst funop :copy value result)))
+ `((inst add object offset sap)
+ (inst ,(ecase size (:byte 'stb) (:short 'sth) (:long 'stw))
+ value 0 sap)
+ (move value result)))))
(define-vop (,set-name-c)
- (:translate ,set-name)
- (:policy :fast-safe)
- (:args (object :scs (sap-reg))
- (value :scs (,sc) :target result))
- (:arg-types system-area-pointer
- (:constant ,(if (eq size :float)
- '(signed-byte 5)
- '(signed-byte 14)))
- ,type)
- (:info offset)
- (:results (result :scs (,sc)))
- (:result-types ,type)
- (:generator 5
- ,@(if (eq size :float)
- `((inst fsts value offset object)
- (unless (location= value result)
- (inst funop :copy value result)))
- `((inst ,(ecase size (:byte 'stb) (:short 'sth) (:long 'stw))
- value offset object)
- (move value result)))))))))
+ (:translate ,set-name)
+ (:policy :fast-safe)
+ (:args (object :scs (sap-reg))
+ (value :scs (,sc) :target result))
+ (:arg-types system-area-pointer
+ (:constant ,(if (eq size :float)
+ '(signed-byte 5)
+ '(signed-byte 14)))
+ ,type)
+ (:info offset)
+ (:results (result :scs (,sc)))
+ (:result-types ,type)
+ (:generator 5
+ ,@(if (eq size :float)
+ `((inst fsts value offset object)
+ (unless (location= value result)
+ (inst funop :copy value result)))
+ `((inst ,(ecase size (:byte 'stb) (:short 'sth) (:long 'stw))
+ value offset object)
+ (move value result)))))))))
(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
single-reg single-float :float)
(def-system-ref-and-set sap-ref-double %set-sap-ref-double
double-reg double-float :float))
-
\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
- (- (* vector-data-offset n-word-bytes) other-pointer-lowtag)
- vector
- sap)))
-
+ (- (* vector-data-offset n-word-bytes) other-pointer-lowtag)
+ vector
+ sap)))
\f
;;; Transforms for 64-bit SAP accessors.
-;;; FIXME: So these are now commented out on the SPARC, PPC and HPPA
-;;; backends. Did they ever serve a purpose? Could they in future? --
-;;; CSR, 2002-08-10
-#|
(deftransform sap-ref-64 ((sap offset) (* *))
'(logior (ash (sap-ref-32 sap offset) 32)
- (sap-ref-32 sap (+ offset 4))))
+ (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))))
+ (sap-ref-32 sap (+ 4 offset))))
(deftransform %set-sap-ref-64 ((sap offset value) (* * *))
'(progn
'(progn
(%set-signed-sap-ref-32 sap offset (ash value -32))
(%set-sap-ref-32 sap (+ 4 offset) (logand value #xffffffff))))
-|#
projects / sbcl.git / blobdiff