1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
// 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"
// See memclrNoHeapPointers Go doc for important implementation constraints.
// func memclrNoHeapPointers(ptr unsafe.Pointer, n uintptr)
TEXT runtime·memclrNoHeapPointers(SB),NOSPLIT,$0-16
MOVQ ptr+0(FP), DI
MOVQ n+8(FP), CX
MOVQ CX, BX
ANDQ $7, BX
SHRQ $3, CX
MOVQ $0, AX
CLD
REP
STOSQ
MOVQ BX, CX
REP
STOSB
RET
|
