summaryrefslogtreecommitdiff
path: root/src/string/i386/memmove.s
blob: 6e6cc8e36da2779f30f2c6fbafd728989bb4d765 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
.global memmove
.type memmove,@function
memmove:
	mov 4(%esp),%eax
	sub 8(%esp),%eax
	cmp 12(%esp),%eax
	jae memcpy
	push %esi
	push %edi
	mov 12(%esp),%edi
	mov 16(%esp),%esi
	mov 20(%esp),%ecx
	lea -1(%edi,%ecx),%edi
	lea -1(%esi,%ecx),%esi
	std
	rep movsb
	cld
	lea 1(%edi),%eax
	pop %edi
	pop %esi
	ret