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go/src/runtime/memclr_arm64.s
Aram Hăvărneanu 846ee0465b runtime: add support for linux/arm64
Change-Id: Ibda6a5bedaff57fd161d63fc04ad260931d34413
Reviewed-on: https://go-review.googlesource.com/7142
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:54 +00:00

19 lines
392 B
ArmAsm

// Copyright 2014 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 "textflag.h"
// void runtime·memclr(void*, uintptr)
TEXT runtime·memclr(SB),NOSPLIT,$0-16
MOVD ptr+0(FP), R3
MOVD n+8(FP), R4
CMP $0, R4
BEQ done
ADD R3, R4, R4
MOVBU.P $0, 1(R3)
CMP R3, R4
BNE -2(PC)
done:
RET