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x8632-numbers.lisp
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x8632-numbers.lisp
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;;;
;;; Copyright 2009 Clozure Associates
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
(in-package "CCL")
(defx8632lapfunction %fixnum-signum ((number arg_z))
(mov ($ '-1) (% temp0))
(mov ($ '1) (% temp1))
(test (% number) (% number))
(cmovs (% temp0) (% arg_z))
(cmovns (% temp1) (% arg_z))
(single-value-return))
;;; see %logcount.
(defx86lapfunction %ilogcount ((number arg_z))
(mark-as-imm temp0)
(let ((rshift imm0)
(temp temp0))
(unbox-fixnum number rshift)
(xor (% arg_z) (% arg_z))
(test (% rshift) (% rshift))
(jmp @test)
@next
(lea (@ -1 (% rshift)) (% temp))
(and (% temp) (% rshift)) ;sets flags
(lea (@ '1 (% arg_z)) (% arg_z)) ;doesn't set flags
@test
(jne @next))
(mark-as-node temp0)
(single-value-return))
;;; might be able to get away with not marking ecx as imm.
(defx8632lapfunction %iash ((number arg_y) (count arg_z))
(mark-as-imm ecx) ;aka temp0
(unbox-fixnum count ecx)
(test (% count) (% count))
(jge @left)
(negb (% cl))
(unbox-fixnum number imm0)
(sar (% cl) (% imm0))
(box-fixnum imm0 arg_z)
(mark-as-node ecx)
(single-value-return)
@left
(shl (% cl) (% number))
(movl (% number) (% arg_z))
(mark-as-node ecx)
(single-value-return))
(defparameter *double-float-zero* 0.0d0)
(defparameter *short-float-zero* 0.0s0)
(defx8632lapfunction %sfloat-hwords ((sfloat arg_z))
(movl (% esp) (% temp0))
(movzwl (@ (+ 2 x8632::misc-data-offset) (% sfloat)) (% imm0))
(box-fixnum imm0 temp1)
(pushl (% temp1)) ;high
(movzwl (@ x8632::misc-data-offset (% sfloat)) (% imm0))
(box-fixnum imm0 temp1)
(pushl (% temp1)) ;low
(set-nargs 2)
(jmp-subprim .SPvalues))
(defx8632lapfunction %fixnum-intlen ((number arg_z))
(mark-as-imm temp0)
(let ((imm1 temp0))
(unbox-fixnum arg_z imm0)
(mov (% imm0) (% imm1))
(not (% imm1))
(test (% imm0) (% imm0))
(cmovs (% imm1) (% imm0))
(bsrl (% imm0) (% imm0))
(setne (%b imm1))
(addb (%b imm1) (%b imm0))
(box-fixnum imm0 arg_z))
(mark-as-node temp0)
(single-value-return))
;;; Caller guarantees that result fits in a fixnum.
(defx8632lapfunction %truncate-double-float->fixnum ((arg arg_z))
(get-double-float arg fp1)
(cvttsd2si (% fp1) (% imm0))
(box-fixnum imm0 arg_z)
(single-value-return))
(defx8632lapfunction %truncate-short-float->fixnum ((arg arg_z))
(get-single-float arg fp1)
(cvttss2si (% fp1) (% imm0))
(box-fixnum imm0 arg_z)
(single-value-return))
;;; DOES round to even
(defx8632lapfunction %round-nearest-double-float->fixnum ((arg arg_z))
(get-double-float arg fp1)
(cvtsd2si (% fp1) (% imm0))
(box-fixnum imm0 arg_z)
(single-value-return))
(defx8632lapfunction %round-nearest-short-float->fixnum ((arg arg_z))
(get-single-float arg fp1)
(cvtss2si (% fp1) (% imm0))
(box-fixnum imm0 arg_z)
(single-value-return))
;;; We'll get a SIGFPE if divisor is 0.
(defx8632lapfunction %fixnum-truncate ((dividend arg_y) (divisor arg_z))
(cmpl ($ '-1) (% divisor))
(je @neg)
(mark-as-imm temp0)
(mark-as-imm temp1)
(let ((imm2 temp0)
(imm1 temp1)) ;edx
(unbox-fixnum dividend imm0)
(unbox-fixnum divisor imm2)
(cltd) ;edx:eax = sign_extend(eax)
(idivl (% imm2))
(box-fixnum imm0 arg_z) ;quotient
(box-fixnum imm1 arg_y)) ;remainder
(mark-as-node temp0)
(mark-as-node temp1)
(movl (% esp) (% temp0))
(push (% arg_z))
(push (% arg_y))
(set-nargs 2)
(jmp-subprim .SPvalues)
@neg
(negl (% dividend))
(load-constant *least-positive-bignum* arg_z)
(cmovol (@ x8632::symbol.vcell (% arg_z)) (% dividend))
(movl (% esp) (% temp0))
(pushl (% dividend))
(pushl ($ 0))
(set-nargs 2)
(jmp-subprim .SPvalues))
(defx8632lapfunction called-for-mv-p ()
(movl (@ x8632::lisp-frame.return-address (% ebp)) (% imm0))
(cmpl (% imm0) (@ (+ (target-nil-value) (x8632::kernel-global ret1valaddr))))
(movl ($ (target-t-value)) (% imm0))
(movl ($ (target-nil-value)) (% arg_z))
(cmove (% imm0) (% arg_z))
(single-value-return))
;;; n1 and n2 must be positive (esp non zero)
(defx86lapfunction %fixnum-gcd ((boxed-u arg_y) (boxed-v arg_z))
(mark-as-imm temp0)
(mark-as-imm temp1)
(let ((u imm0)
(v temp1)
(k temp0)) ;temp0 = ecx
(xorl (% k) (% k))
(bsfl (% boxed-u) (% u))
(bsfl (% boxed-v) (% v))
(rcmp (% u) (% v))
(cmovlel (%l u) (%l k))
(cmovgl (%l v) (%l k))
(unbox-fixnum boxed-u u)
(unbox-fixnum boxed-v v)
(subb ($ x8632::fixnumshift) (%b k))
(jz @start)
(shrl (% cl) (% u))
(shrl (% cl) (% v))
@start
;; At least one of u or v is odd at this point
@loop
;; if u is even, shift it right one bit
(testb ($ 1) (%b u))
(jne @u-odd)
(shrl ($ 1) (% u))
(jmp @test)
@u-odd
;; if v is even, shift it right one bit
(testb ($ 1) (%b v))
(jne @both-odd)
(shrl ($ 1) (% v))
(jmp @test-u)
@both-odd
(cmpl (% v) (% u))
(jb @v>u)
(subl (% v) (% u))
(shrl ($ 1) (% u))
(jmp @test)
@v>u
(subl (% u) (% v))
(shrl ($ 1) (% v))
@test-u
(testl (% u) (% u))
@test
(ja @loop)
(shll (% cl) (% v))
(movb ($ 0) (% cl))
(box-fixnum v arg_z))
(mark-as-node temp0)
(mark-as-node temp1)
(single-value-return))
(defx8632lapfunction %mrg31k3p ((state arg_z))
(let ((seed temp0)
(m1 #x7fffffff)
(m2 #x7fffadb3)
(negative-m1 #x80000001)
(negative-m2 #x8000524d)
(imm1 temp1))
(mark-as-imm temp1)
(svref state 1 seed)
(movl (@ (+ x8632::misc-data-offset (* 4 1)) (% seed)) (% imm0))
(andl ($ #x1ff) (% imm0))
(shll ($ 22) (% imm0))
(movl (@ (+ x8632::misc-data-offset (* 4 1)) (% seed)) (% imm1))
(shrl ($ 9) (% imm1))
(addl (% imm1) (% imm0))
(movl (@ (+ x8632::misc-data-offset (* 4 2)) (% seed)) (% imm1))
(andl ($ #xffffff) (% imm1))
(shll ($ 7) (% imm1))
(addl (% imm1) (% imm0))
(movl (@ (+ x8632::misc-data-offset (* 4 2)) (% seed)) (% imm1))
(shrl ($ 24) (% imm1))
(addl (% imm1) (% imm0))
(leal (@ negative-m1 (% imm0)) (% imm1))
(cmpl ($ m1) (% imm0))
(cmovael (% imm1) (% imm0))
(addl (@ (+ x8632::misc-data-offset (* 4 2)) (% seed)) (% imm0))
(leal (@ negative-m1 (% imm0)) (% imm1))
(cmpl ($ m1) (% imm0))
(cmovael (% imm1) (% imm0))
;; update state
(movl (@ (+ x8632::misc-data-offset (* 4 1)) (% seed)) (% imm1))
(movl (% imm1) (@ (+ x8632::misc-data-offset (* 4 2)) (% seed)))
(movl (@ (+ x8632::misc-data-offset (* 4 0)) (% seed)) (% imm1))
(movl (% imm1) (@ (+ x8632::misc-data-offset (* 4 1)) (% seed)))
(movl (% imm0) (@ (+ x8632::misc-data-offset (* 4 0)) (% seed)))
;; second component
(movzwl (@ (+ x8632::misc-data-offset (* 4 3)) (% seed)) (% imm0))
;(andl ($ #xffff) (% imm0))
(shll ($ 15) (% imm0))
(movl (@ (+ x8632::misc-data-offset (* 4 3)) (% seed)) (% imm1))
(shrl ($ 16) (% imm1))
(imull ($ 21069) (% imm1) (% imm1))
(addl (% imm1) (% imm0))
(leal (@ negative-m2 (% imm0)) (% imm1))
(cmpl ($ m2) (% imm0))
(cmovael (% imm1) (% imm0))
(movl (% imm0) (:rcontext x8632::tcr.unboxed0)) ;stash t1
(movzwl (@ (+ x8632::misc-data-offset (* 4 5)) (% seed)) (% imm0))
;(andl ($ #xffff) (% imm0))
(shll ($ 15) (% imm0))
(movl (@ (+ x8632::misc-data-offset (* 4 5)) (% seed)) (% imm1))
(shrl ($ 16) (% imm1))
(imull ($ 21069) (% imm1) (% imm1))
(addl (% imm1) (% imm0))
(leal (@ negative-m2 (% imm0)) (% imm1))
(cmpl ($ m2) (% imm0))
(cmovael (% imm1) (% imm0))
(addl (@ (+ x8632::misc-data-offset (* 4 5)) (% seed)) (% imm0))
(leal (@ negative-m2 (% imm0)) (% imm1))
(cmpl ($ m2) (% imm0))
(cmovael (% imm1) (% imm0))
(addl (:rcontext x8632::tcr.unboxed0) (% imm0)) ;add in t1
(leal (@ negative-m2 (% imm0)) (% imm1))
(cmpl ($ m2) (% imm0))
(cmovael (% imm1) (% imm0))
;; update state
(movl (@ (+ x8632::misc-data-offset (* 4 4)) (% seed)) (% imm1))
(movl (% imm1) (@ (+ x8632::misc-data-offset (* 4 5)) (% seed)))
(movl (@ (+ x8632::misc-data-offset (* 4 3)) (% seed)) (% imm1))
(movl (% imm1) (@ (+ x8632::misc-data-offset (* 4 4)) (% seed)))
(movl (% imm0) (@ (+ x8632::misc-data-offset (* 4 3)) (% seed)))
;; combination
(movl (@ (+ x8632::misc-data-offset (* 4 0)) (% seed)) (% imm1))
(xchgl (% imm1) (% imm0)) ;for sanity
(rcmpl (% imm0) (% imm1))
(ja @ok)
(subl (% imm1) (% imm0))
(mark-as-node temp1)
(addl ($ m1) (% imm0))
(box-fixnum imm0 arg_z)
(andl ($ #x7fffffff) (% arg_z))
(single-value-return)
@ok
(subl (% imm1) (% imm0))
(mark-as-node temp1)
(box-fixnum imm0 arg_z)
(andl ($ #x7fffffff) (% arg_z))
(single-value-return)))
(defx8632lapfunction %make-complex-double-float ((r arg_y) (i arg_z))
(movsd (@ target::misc-dfloat-offset (% r)) (% xmm0))
(movsd (@ target::misc-dfloat-offset (% i)) (% xmm1))
(unpcklpd (% xmm1) (% xmm0))
(movl ($ (logior (ash 5 x8632::num-subtag-bits) x8632::subtag-complex-double-float)) (%l imm0))
(movd (% imm0) (% mm0))
(movl ($ (- (* 2 8) x8632::fulltag-misc)) (%l imm0))
(subl (% imm0) (:rcontext x8632::tcr.save-allocptr))
(movl (:rcontext x8632::tcr.save-allocptr) (% allocptr))
(cmpl (:rcontext x8632::tcr.save-allocbase) (% allocptr))
(ja @no-trap)
(uuo-alloc)
@no-trap
(movd (% mm0) (@ x8632::misc-header-offset (% temp0)))
(andb ($ (lognot x8632::fulltagmask)) (:rcontext x8632::tcr.save-allocptr))
(movl (% allocptr) (% arg_z))
(movdqu (% xmm0) (@ x8632::complex-double-float.realpart (% arg_z)))
(single-value-return))
(defx8632lapfunction %make-complex-single-float ((r arg_y) (i arg_z))
(movsd (@ target::misc-data-offset (% r)) (% xmm0))
(movsd (@ target::misc-data-offset (% i)) (% xmm1))
(unpcklps (% xmm1) (% xmm0))
(movl ($ (logior (ash 3 x8632::num-subtag-bits) x8632::subtag-complex-single-float)) (%l imm0))
(movd (% imm0) (% mm0))
(movl ($ (- (* 2 8) x8632::fulltag-misc)) (%l imm0))
(subl (% imm0) (:rcontext x8632::tcr.save-allocptr))
(movl (:rcontext x8632::tcr.save-allocptr) (% allocptr))
(cmpl (:rcontext x8632::tcr.save-allocbase) (% allocptr))
(ja @no-trap)
(uuo-alloc)
@no-trap
(movq (% mm0) (@ x8632::misc-header-offset (% temp0)))
(andb ($ (lognot x8632::fulltagmask)) (:rcontext x8632::tcr.save-allocptr))
(movl (% allocptr) (% arg_z))
(movq (% xmm0) (@ x8632::complex-single-float.realpart (% arg_z)))
(single-value-return))