;;;; addition, subtraction, and multiplication
(macrolet ((define-generic-arith-routine ((fun cost) &body body)
- `(define-assembly-routine (,(symbolicate "GENERIC-" fun)
- (:cost ,cost)
- (:return-style :full-call)
- (:translate ,fun)
- (:policy :safe)
- (:save-p t))
- ((:arg x (descriptor-reg any-reg) rdx-offset)
- (:arg y (descriptor-reg any-reg)
- ;; this seems wrong esi-offset -- FIXME: What's it mean?
- rdi-offset)
-
- (:res res (descriptor-reg any-reg) rdx-offset)
-
- (:temp rax unsigned-reg rax-offset)
- (:temp rbx unsigned-reg rbx-offset)
- (:temp rcx unsigned-reg rcx-offset))
-
- (declare (ignorable rbx))
-
- (inst test x 7) ; fixnum?
- (inst jmp :nz DO-STATIC-FUN) ; no - do generic
- (inst test y 7) ; fixnum?
- (inst jmp :z DO-BODY) ; yes - doit here
-
- DO-STATIC-FUN
- (inst pop rax)
- (inst push rbp-tn)
- (inst lea
- rbp-tn
- (make-ea :qword :base rsp-tn :disp n-word-bytes))
- (inst sub rsp-tn (fixnumize 2))
- (inst push rax) ; callers return addr
- (inst mov rcx (fixnumize 2)) ; arg count
- (inst jmp
- (make-ea :qword
- :disp (+ nil-value
- (static-fun-offset
- ',(symbolicate "TWO-ARG-" fun)))))
-
- DO-BODY
- ,@body)))
+ `(define-assembly-routine (,(symbolicate "GENERIC-" fun)
+ (:cost ,cost)
+ (:return-style :full-call)
+ (:translate ,fun)
+ (:policy :safe)
+ (:save-p t))
+ ((:arg x (descriptor-reg any-reg) rdx-offset)
+ (:arg y (descriptor-reg any-reg)
+ ;; this seems wrong esi-offset -- FIXME: What's it mean?
+ rdi-offset)
+
+ (:res res (descriptor-reg any-reg) rdx-offset)
+
+ (:temp rax unsigned-reg rax-offset)
+ (:temp rbx unsigned-reg rbx-offset)
+ (:temp rcx unsigned-reg rcx-offset))
+
+ (declare (ignorable rbx))
+
+ (inst test x 7) ; fixnum?
+ (inst jmp :nz DO-STATIC-FUN) ; no - do generic
+ (inst test y 7) ; fixnum?
+ (inst jmp :z DO-BODY) ; yes - doit here
+
+ DO-STATIC-FUN
+ (inst pop rax)
+ (inst push rbp-tn)
+ (inst lea
+ rbp-tn
+ (make-ea :qword :base rsp-tn :disp n-word-bytes))
+ (inst sub rsp-tn (fixnumize 2))
+ (inst push rax) ; callers return addr
+ (inst mov rcx (fixnumize 2)) ; arg count
+ (inst jmp
+ (make-ea :qword
+ :disp (+ nil-value
+ (static-fun-offset
+ ',(symbolicate "TWO-ARG-" fun)))))
+
+ DO-BODY
+ ,@body)))
(define-generic-arith-routine (+ 10)
(move res x)
(inst add res y)
(inst jmp :no OKAY)
- (inst rcr res 1) ; carry has correct sign
- (inst sar res 2) ; remove type bits
+ (inst rcr res 1) ; carry has correct sign
+ (inst sar res 2) ; remove type bits
(move rcx res)
(inst jmp :no OKAY)
(inst cmc) ; carry has correct sign now
(inst rcr res 1)
- (inst sar res 2) ; remove type bits
+ (inst sar res 2) ; remove type bits
(move rcx res)
OKAY)
(define-generic-arith-routine (* 30)
- (move rax x) ; must use eax for 64-bit result
- (inst sar rax 3) ; remove *4 fixnum bias
- (inst imul y) ; result in edx:eax
- (inst jmp :no OKAY) ; still fixnum
+ (move rax x) ; must use eax for 64-bit result
+ (inst sar rax 3) ; remove *4 fixnum bias
+ (inst imul y) ; result in edx:eax
+ (inst jmp :no OKAY) ; still fixnum
;; zzz jrd changed edx to ebx in here, as edx isn't listed as a temp, above
;; pfw says that loses big -- edx is target for arg x and result res
;; note that 'edx' is not defined -- using x
- (inst shrd rax x 3) ; high bits from edx
- (inst sar x 3) ; now shift edx too
+ (inst shrd rax x 3) ; high bits from edx
+ (inst sar x 3) ; now shift edx too
- (move rcx x) ; save high bits from cqo
- (inst cqo) ; edx:eax <- sign-extend of eax
+ (move rcx x) ; save high bits from cqo
+ (inst cqo) ; edx:eax <- sign-extend of eax
(inst cmp x rcx)
(inst jmp :e SINGLE-WORD-BIGNUM)
;;;; negation
(define-assembly-routine (generic-negate
- (:cost 10)
- (:return-style :full-call)
- (:policy :safe)
- (:translate %negate)
- (:save-p t))
- ((:arg x (descriptor-reg any-reg) rdx-offset)
- (:res res (descriptor-reg any-reg) rdx-offset)
-
- (:temp rax unsigned-reg rax-offset)
- (:temp rcx unsigned-reg rcx-offset))
+ (:cost 10)
+ (:return-style :full-call)
+ (:policy :safe)
+ (:translate %negate)
+ (:save-p t))
+ ((:arg x (descriptor-reg any-reg) rdx-offset)
+ (:res res (descriptor-reg any-reg) rdx-offset)
+
+ (:temp rax unsigned-reg rax-offset)
+ (:temp rcx unsigned-reg rcx-offset))
(inst test x 7)
(inst jmp :z FIXNUM)
(inst lea rbp-tn (make-ea :qword :base rsp-tn :disp n-word-bytes))
(inst sub rsp-tn (fixnumize 2))
(inst push rax)
- (inst mov rcx (fixnumize 1)) ; arg count
+ (inst mov rcx (fixnumize 1)) ; arg count
(inst jmp (make-ea :qword
- :disp (+ nil-value (static-fun-offset '%negate))))
+ :disp (+ nil-value (static-fun-offset '%negate))))
FIXNUM
(move res x)
- (inst neg res) ; (- most-negative-fixnum) is BIGNUM
+ (inst neg res) ; (- most-negative-fixnum) is BIGNUM
(inst jmp :no OKAY)
- (inst shr res 3) ; sign bit is data - remove type bits
+ (inst shr res 3) ; sign bit is data - remove type bits
(move rcx res)
(with-fixed-allocation (res bignum-widetag (1+ bignum-digits-offset))
;;;; comparison
(macrolet ((define-cond-assem-rtn (name translate static-fn test)
- `(define-assembly-routine (,name
- (:cost 10)
- (:return-style :full-call)
- (:policy :safe)
- (:translate ,translate)
- (:save-p t))
- ((:arg x (descriptor-reg any-reg) rdx-offset)
- (:arg y (descriptor-reg any-reg) rdi-offset)
-
- (:res res descriptor-reg rdx-offset)
-
- (:temp eax unsigned-reg rax-offset)
- (:temp ecx unsigned-reg rcx-offset))
-
- ;; KLUDGE: The "3" here is a mask for the bits which will be
- ;; zero in a fixnum. It should have a symbolic name. (Actually,
- ;; it might already have a symbolic name which the coder
- ;; couldn't be bothered to use..) -- WHN 19990917
- (inst test x 7)
- (inst jmp :nz TAIL-CALL-TO-STATIC-FN)
- (inst test y 7)
- (inst jmp :z INLINE-FIXNUM-COMPARE)
-
- TAIL-CALL-TO-STATIC-FN
- (inst pop eax)
- (inst push rbp-tn)
- (inst lea rbp-tn (make-ea :qword
- :base rsp-tn
- :disp n-word-bytes))
- (inst sub rsp-tn (fixnumize 2)) ; FIXME: Push 2 words on stack,
- ; weirdly?
- (inst push eax)
- (inst mov ecx (fixnumize 2)) ; FIXME: FIXNUMIZE and
- ; SINGLE-FLOAT-BITS are parallel,
- ; should be named parallelly.
- (inst jmp (make-ea :qword
- :disp (+ nil-value
- (static-fun-offset ',static-fn))))
-
- INLINE-FIXNUM-COMPARE
- (inst cmp x y)
- (inst jmp ,test RETURN-TRUE)
- (inst mov res nil-value)
- ;; FIXME: A note explaining this return convention, or a
- ;; symbolic name for it, would be nice. (It looks as though we
- ;; should be hand-crafting the same return sequence as would be
- ;; produced by GENERATE-RETURN-SEQUENCE, but in that case it's
- ;; not clear why we don't just jump to the end of this function
- ;; to share the return sequence there.
- (inst pop eax)
- (inst add eax 3)
- (inst jmp eax)
-
- RETURN-TRUE
- (load-symbol res t))))
+ `(define-assembly-routine (,name
+ (:cost 10)
+ (:return-style :full-call)
+ (:policy :safe)
+ (:translate ,translate)
+ (:save-p t))
+ ((:arg x (descriptor-reg any-reg) rdx-offset)
+ (:arg y (descriptor-reg any-reg) rdi-offset)
+
+ (:res res descriptor-reg rdx-offset)
+
+ (:temp eax unsigned-reg rax-offset)
+ (:temp ecx unsigned-reg rcx-offset))
+
+ ;; KLUDGE: The "3" here is a mask for the bits which will be
+ ;; zero in a fixnum. It should have a symbolic name. (Actually,
+ ;; it might already have a symbolic name which the coder
+ ;; couldn't be bothered to use..) -- WHN 19990917
+ (inst test x 7)
+ (inst jmp :nz TAIL-CALL-TO-STATIC-FN)
+ (inst test y 7)
+ (inst jmp :z INLINE-FIXNUM-COMPARE)
+
+ TAIL-CALL-TO-STATIC-FN
+ (inst pop eax)
+ (inst push rbp-tn)
+ (inst lea rbp-tn (make-ea :qword
+ :base rsp-tn
+ :disp n-word-bytes))
+ (inst sub rsp-tn (fixnumize 2)) ; FIXME: Push 2 words on stack,
+ ; weirdly?
+ (inst push eax)
+ (inst mov ecx (fixnumize 2)) ; FIXME: FIXNUMIZE and
+ ; SINGLE-FLOAT-BITS are parallel,
+ ; should be named parallelly.
+ (inst jmp (make-ea :qword
+ :disp (+ nil-value
+ (static-fun-offset ',static-fn))))
+
+ INLINE-FIXNUM-COMPARE
+ (inst cmp x y)
+ (inst jmp ,test RETURN-TRUE)
+ (inst mov res nil-value)
+ ;; FIXME: A note explaining this return convention, or a
+ ;; symbolic name for it, would be nice. (It looks as though we
+ ;; should be hand-crafting the same return sequence as would be
+ ;; produced by GENERATE-RETURN-SEQUENCE, but in that case it's
+ ;; not clear why we don't just jump to the end of this function
+ ;; to share the return sequence there.
+ (inst pop eax)
+ (inst add eax 3)
+ (inst jmp eax)
+
+ RETURN-TRUE
+ (load-symbol res t))))
(define-cond-assem-rtn generic-< < two-arg-< :l)
(define-cond-assem-rtn generic-> > two-arg-> :g))
(define-assembly-routine (generic-eql
- (:cost 10)
- (:return-style :full-call)
- (:policy :safe)
- (:translate eql)
- (:save-p t))
- ((:arg x (descriptor-reg any-reg) rdx-offset)
- (:arg y (descriptor-reg any-reg) rdi-offset)
-
- (:res res descriptor-reg rdx-offset)
-
- (:temp eax unsigned-reg rax-offset)
- (:temp ecx unsigned-reg rcx-offset))
+ (:cost 10)
+ (:return-style :full-call)
+ (:policy :safe)
+ (:translate eql)
+ (:save-p t))
+ ((:arg x (descriptor-reg any-reg) rdx-offset)
+ (:arg y (descriptor-reg any-reg) rdi-offset)
+
+ (:res res descriptor-reg rdx-offset)
+
+ (:temp eax unsigned-reg rax-offset)
+ (:temp ecx unsigned-reg rcx-offset))
(inst cmp x y)
(inst jmp :e RETURN-T)
(inst test x 7)
(inst push eax)
(inst mov ecx (fixnumize 2))
(inst jmp (make-ea :qword
- :disp (+ nil-value (static-fun-offset 'eql))))
+ :disp (+ nil-value (static-fun-offset 'eql))))
RETURN-T
(load-symbol res t)
)
(define-assembly-routine (generic-=
- (:cost 10)
- (:return-style :full-call)
- (:policy :safe)
- (:translate =)
- (:save-p t))
- ((:arg x (descriptor-reg any-reg) rdx-offset)
- (:arg y (descriptor-reg any-reg) rdi-offset)
-
- (:res res descriptor-reg rdx-offset)
-
- (:temp eax unsigned-reg rax-offset)
- (:temp ecx unsigned-reg rcx-offset)
- )
- (inst test x 7) ; descriptor?
+ (:cost 10)
+ (:return-style :full-call)
+ (:policy :safe)
+ (:translate =)
+ (:save-p t))
+ ((:arg x (descriptor-reg any-reg) rdx-offset)
+ (:arg y (descriptor-reg any-reg) rdi-offset)
+
+ (:res res descriptor-reg rdx-offset)
+
+ (:temp eax unsigned-reg rax-offset)
+ (:temp ecx unsigned-reg rcx-offset)
+ )
+ (inst test x 7) ; descriptor?
(inst jmp :nz DO-STATIC-FN) ; yes, do it here
- (inst test y 7) ; descriptor?
+ (inst test y 7) ; descriptor?
(inst jmp :nz DO-STATIC-FN)
(inst cmp x y)
- (inst jmp :e RETURN-T) ; ok
+ (inst jmp :e RETURN-T) ; ok
(inst mov res nil-value)
(inst pop eax)
(inst push eax)
(inst mov ecx (fixnumize 2))
(inst jmp (make-ea :qword
- :disp (+ nil-value (static-fun-offset 'two-arg-=))))
+ :disp (+ nil-value (static-fun-offset 'two-arg-=))))
RETURN-T
(load-symbol res t))
projects / sbcl.git / blobdiff