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go/src/pkg/bytes/asm_amd64.s
Russ Cox 718be3215f in C and asm, replace pkg·name with ·name
(eliminate assumption of package global name space,
make code easier to move between packages).

R=r
CC=golang-dev
https://golang.org/cl/194072
2010-01-25 18:52:55 -08:00

18 lines
359 B
ArmAsm

// Copyright 2009 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.
TEXT ·IndexByte(SB),7,$0
MOVQ p+0(FP), SI
MOVL len+8(FP), CX
MOVB b+16(FP), AL
MOVQ SI, DI
REPN; SCASB
JZ 3(PC)
MOVL $-1, ret+24(FP)
RET
SUBQ SI, DI
SUBL $1, DI
MOVL DI, ret+24(FP)
RET