/**************************************************************************** * * 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 }