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movedata.s
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1993-06-28
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1KB
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52 lines
/* This is file MOVEDATA.S */
/*
** Copyright (C) 1993 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
**
** This file is distributed under the terms listed in the document
** "copying.dj", available from DJ Delorie at the address above.
** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained. This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
/* 8 segsrc
12 offsrc
16 segdest
20 offdest
24 length
*/
.globl _movedata
_movedata:
pushl %ebp
movl %esp,%ebp
pushl %esi
pushl %edi
pushl %ds
pushl %es
movw 8(%ebp),%ax
movw %ax,%ds
movl 12(%ebp),%esi
movw 16(%ebp),%ax
movw %ax,%es
movl 20(%ebp),%edi
movl 24(%ebp),%ecx
jecxz L2
cld
rep
movsb
L2:
popl %es
popl %ds
popl %edi
popl %esi
movl 8(%ebp),%eax
leave
ret