kolibrios-fun/programs/develop/open watcom/trunk/clib/string/fstrset.c
Sergey Semyonov (Serge) 836c97f0ac Clib string & memory functions
git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-06-26 00:54:22 +00:00

76 lines
2.7 KiB
C

/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
* DESCRIBE IT HERE!
*
****************************************************************************/
#include "variety.h"
#include <string.h>
#ifdef M_I86
extern char _WCFAR *fast_strset( char _WCFAR *, char );
#pragma aux fast_strset = \
0x1e /* push ds */\
0x56 /* push si */\
0x50 /* push ax */\
0x8e 0xda /* mov ds,dx */\
0x89 0xc6 /* mov si,ax */\
0x88 0xdf /* mov bh,bl */\
0xad /* L1:lodsw */\
0x84 0xc0 /* test al,al */\
0x74 0x0c /* je L3 */\
0x84 0xe4 /* test ah,ah */\
0x74 0x05 /* je L2 */\
0x89 0x5c 0xfe /* mov -2[si],bx */\
0xeb 0xf2 /* jmp L1 */\
0x88 0x5c 0xfe /* L2:mov -2[si],bl */\
0x58 /* L3:pop ax */\
0x5e /* pop si */\
0x1f /* pop ds */\
parm caller [dx ax] [bl] \
value [dx ax] \
modify exact [bh];
#endif
_WCRTLINK char _WCFAR *_fstrset( char _WCFAR *s, int c )
{
//#ifdef M_I86
//return( fast_strset( s, c ) );
//#else
char _WCFAR *p;
for( p = s; *p; ++p ) {
*p = c;
}
return( s );
//#endif
}