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Clib string & memory functions

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git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge)
2007-06-26 00:54:22 +00:00
parent d5f66e011c
commit 836c97f0ac
162 changed files with 11855 additions and 0 deletions
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programs/develop/open watcom/trunk/clib/memory/memset.c Normal file
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/****************************************************************************
*
* 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: Implementation of memset() and wmemset().
*
****************************************************************************/
#include "variety.h"
#include "widechar.h"
#include <string.h>
#include <wchar.h>
#include "xstring.h"
#if defined(__386__)
extern void __STOSB( void *, int, unsigned );
#pragma aux __STOSB "*" parm [eax] [edx] [ecx];
extern void *__set386( void *, int, unsigned );
#pragma aux __set386 = \
"push EAX" /* save return value*/\
"mov DH,DL" /* duplicate byte value thru EDX */\
"shl EDX,8" /* ... */\
"mov DL,DH" /* ... */\
"shl EDX,8" /* ... */\
"mov DL,DH" /* ... */\
"call __STOSB" /* do store */\
"pop EAX" /* restore return value*/\
parm [eax] [edx] [ecx] \
value [eax];
#endif
_WCRTLINK VOID_WC_TYPE *__F_NAME(memset,wmemset)( VOID_WC_TYPE *dst, INT_WC_TYPE c, size_t len )
{
#if defined(__INLINE_FUNCTIONS__) && !defined(__WIDECHAR__) && defined(_M_IX86)
#if defined(__386__)
return( __set386( dst, c, len ) );
#else
return( _inline_memset( dst, c, len ) );
#endif
#else
CHAR_TYPE *p;
for( p = dst; len; --len ) {
*p++ = c;
}
return( dst );
#endif
}