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go/src/pkg/runtime/memmove_nacl_amd64p32.s

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all: nacl import round 2 These previously reviewed CLs are present in this CL. --- changeset: 18445:436bb084caed user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:50:34 2013 -0500 description: runtime: assembly and system calls for Native Client x86-64 See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡adg https://golang.org/cl/15760044 --- changeset: 18448:90bd871b5994 user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:51:36 2013 -0500 description: runtime: amd64p32 and Native Client assembly bootstrap See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡khr https://golang.org/cl/15820043 --- changeset: 18449:b011c3dc687e user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:51:58 2013 -0500 description: math: amd64p32 assembly routines These routines only manipulate float64 values, so the amd64 and amd64p32 can share assembly. The large number of files is symptomatic of a problem with package path: it is a Go package structured like a C library. But that will need to wait for another day. See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡bradfitz https://golang.org/cl/15870043 --- changeset: 18450:43234f082eec user: Russ Cox <rsc@golang.org> date: Mon Nov 11 10:03:19 2013 -0500 description: syscall: networking for Native Client See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡rsc https://golang.org/cl/15780043 --- changeset: 18451:9c8d1d890aaa user: Russ Cox <rsc@golang.org> date: Mon Nov 11 10:03:34 2013 -0500 description: runtime: assembly and system calls for Native Client x86-32 See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡rsc https://golang.org/cl/15800043 --- changeset: 18452:f90b1dd9228f user: Russ Cox <rsc@golang.org> date: Mon Nov 11 11:04:09 2013 -0500 description: runtime: fix frame size for linux/amd64 runtime.raise R≡rsc https://golang.org/cl/24480043 --- changeset: 18445:436bb084caed user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:50:34 2013 -0500 description: runtime: assembly and system calls for Native Client x86-64 See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡adg https://golang.org/cl/15760044 --- changeset: 18455:53b06799a938 user: Russ Cox <rsc@golang.org> date: Mon Nov 11 23:29:52 2013 -0500 description: cmd/gc: add -nolocalimports flag R≡dsymonds https://golang.org/cl/24990043 --- changeset: 18456:24f64e1eaa8a user: Russ Cox <rsc@golang.org> date: Tue Nov 12 22:06:29 2013 -0500 description: runtime: add comments for playback write R≡adg https://golang.org/cl/25190043 --- changeset: 18457:d1f615bbb6e4 user: Russ Cox <rsc@golang.org> date: Wed Nov 13 17:03:52 2013 -0500 description: runtime: write only to NaCl stdout, never to NaCl stderr NaCl writes some other messages on standard error that we would like to be able to squelch. R≡adg https://golang.org/cl/26240044 --- changeset: 18458:1f01be1a1dc2 tag: tip user: Russ Cox <rsc@golang.org> date: Wed Nov 13 19:45:16 2013 -0500 description: runtime: remove apparent debugging dreg Setting timens to 0 turns off fake time. TBR≡adg https://golang.org/cl/26400043 LGTM=bradfitz R=dave, bradfitz CC=golang-codereviews https://golang.org/cl/68730043
2014-02-25 15:00:08 -07:00
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "../../cmd/ld/textflag.h"
TEXT runtime·memmove(SB), NOSPLIT, $0-12
MOVL to+0(FP), DI
cmd/cc, runtime: convert C compilers to use Go calling convention To date, the C compilers and Go compilers differed only in how values were returned from functions. This made it difficult to call Go from C or C from Go if return values were involved. It also made assembly called from Go and assembly called from C different. This CL changes the C compiler to use the Go conventions, passing results on the stack, after the arguments. [Exception: this does not apply to C ... functions, because you can't know where on the stack the arguments end.] By doing this, the CL makes it possible to rewrite C functions into Go one at a time, without worrying about which languages call that function or which languages it calls. This CL also updates all the assembly files in package runtime to use the new conventions. Argument references of the form 40(SP) have been rewritten to the form name+10(FP) instead, and there are now Go func prototypes for every assembly function called from C or Go. This means that 'go vet runtime' checks effectively every assembly function, and go vet's output was used to automate the bulk of the conversion. Some functions, like seek and nsec on Plan 9, needed to be rewritten. Many assembly routines called from C were reading arguments incorrectly, using MOVL instead of MOVQ or vice versa, especially on the less used systems like openbsd. These were found by go vet and have been corrected too. If we're lucky, this may reduce flakiness on those systems. Tested on: darwin/386 darwin/amd64 linux/arm linux/386 linux/amd64 If this breaks another system, the bug is almost certainly in the sys_$GOOS_$GOARCH.s file, since the rest of the CL is tested by the combination of the above systems. LGTM=dvyukov, iant R=golang-codereviews, 0intro, dave, alex.brainman, dvyukov, iant CC=golang-codereviews, josharian, r https://golang.org/cl/135830043
2014-08-27 09:32:17 -06:00
MOVL from+4(FP), SI
all: nacl import round 2 These previously reviewed CLs are present in this CL. --- changeset: 18445:436bb084caed user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:50:34 2013 -0500 description: runtime: assembly and system calls for Native Client x86-64 See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡adg https://golang.org/cl/15760044 --- changeset: 18448:90bd871b5994 user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:51:36 2013 -0500 description: runtime: amd64p32 and Native Client assembly bootstrap See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡khr https://golang.org/cl/15820043 --- changeset: 18449:b011c3dc687e user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:51:58 2013 -0500 description: math: amd64p32 assembly routines These routines only manipulate float64 values, so the amd64 and amd64p32 can share assembly. The large number of files is symptomatic of a problem with package path: it is a Go package structured like a C library. But that will need to wait for another day. See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡bradfitz https://golang.org/cl/15870043 --- changeset: 18450:43234f082eec user: Russ Cox <rsc@golang.org> date: Mon Nov 11 10:03:19 2013 -0500 description: syscall: networking for Native Client See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡rsc https://golang.org/cl/15780043 --- changeset: 18451:9c8d1d890aaa user: Russ Cox <rsc@golang.org> date: Mon Nov 11 10:03:34 2013 -0500 description: runtime: assembly and system calls for Native Client x86-32 See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡rsc https://golang.org/cl/15800043 --- changeset: 18452:f90b1dd9228f user: Russ Cox <rsc@golang.org> date: Mon Nov 11 11:04:09 2013 -0500 description: runtime: fix frame size for linux/amd64 runtime.raise R≡rsc https://golang.org/cl/24480043 --- changeset: 18445:436bb084caed user: Russ Cox <rsc@golang.org> date: Mon Nov 11 09:50:34 2013 -0500 description: runtime: assembly and system calls for Native Client x86-64 See golang.org/s/go13nacl for design overview. This CL is publicly visible but not CC'ed to golang-dev, to avoid distracting from the preparation of the Go 1.2 release. This CL and the others will be checked into my rsc-go13nacl clone repo for now, and I will send CLs against the main repo early in the Go 1.3 development. R≡adg https://golang.org/cl/15760044 --- changeset: 18455:53b06799a938 user: Russ Cox <rsc@golang.org> date: Mon Nov 11 23:29:52 2013 -0500 description: cmd/gc: add -nolocalimports flag R≡dsymonds https://golang.org/cl/24990043 --- changeset: 18456:24f64e1eaa8a user: Russ Cox <rsc@golang.org> date: Tue Nov 12 22:06:29 2013 -0500 description: runtime: add comments for playback write R≡adg https://golang.org/cl/25190043 --- changeset: 18457:d1f615bbb6e4 user: Russ Cox <rsc@golang.org> date: Wed Nov 13 17:03:52 2013 -0500 description: runtime: write only to NaCl stdout, never to NaCl stderr NaCl writes some other messages on standard error that we would like to be able to squelch. R≡adg https://golang.org/cl/26240044 --- changeset: 18458:1f01be1a1dc2 tag: tip user: Russ Cox <rsc@golang.org> date: Wed Nov 13 19:45:16 2013 -0500 description: runtime: remove apparent debugging dreg Setting timens to 0 turns off fake time. TBR≡adg https://golang.org/cl/26400043 LGTM=bradfitz R=dave, bradfitz CC=golang-codereviews https://golang.org/cl/68730043
2014-02-25 15:00:08 -07:00
MOVL n+8(FP), BX
CMPL SI, DI
JLS back
forward:
MOVL BX, CX
SHRL $3, CX
ANDL $7, BX
REP; MOVSQ
MOVL BX, CX
REP; MOVSB
RET
back:
MOVL SI, CX
ADDL BX, CX
CMPL CX, DI
JLS forward
ADDL BX, DI
ADDL BX, SI
STD
MOVL BX, CX
SHRL $3, CX
ANDL $7, BX
SUBL $8, DI
SUBL $8, SI
REP; MOVSQ
ADDL $7, DI
ADDL $7, SI
MOVL BX, CX
REP; MOVSB
CLD
RET
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