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| Rev | Author | Line No. | Line |
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| 359 | serge | 1 | /**************************************************************************** |
| 2 | * |
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| 3 | * Open Watcom Project |
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| 4 | * |
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| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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| 6 | * |
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| 7 | * ======================================================================== |
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| 8 | * |
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| 9 | * This file contains Original Code and/or Modifications of Original |
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| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
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| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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| 14 | * provided with the Original Code and Modifications, and is also |
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| 15 | * available at www.sybase.com/developer/opensource. |
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| 16 | * |
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| 17 | * The Original Code and all software distributed under the License are |
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| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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| 23 | * governing rights and limitations under the License. |
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| 24 | * |
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| 25 | * ======================================================================== |
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| 26 | * |
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| 27 | * Description: Implementation of memset() and wmemset(). |
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| 28 | * |
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| 29 | ****************************************************************************/ |
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| 30 | |||
| 31 | |||
| 32 | #include "variety.h" |
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| 33 | #include "widechar.h" |
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| 34 | #include |
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| 35 | #include |
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| 36 | #include "xstring.h" |
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| 37 | |||
| 38 | |||
| 39 | #if defined(__386__) |
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| 40 | extern void __STOSB( void *, int, unsigned ); |
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| 41 | #pragma aux __STOSB "*" parm [eax] [edx] [ecx]; |
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| 42 | |||
| 43 | extern void *__set386( void *, int, unsigned ); |
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| 44 | #pragma aux __set386 = \ |
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| 45 | "push EAX" /* save return value*/\ |
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| 46 | "mov DH,DL" /* duplicate byte value thru EDX */\ |
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| 47 | "shl EDX,8" /* ... */\ |
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| 48 | "mov DL,DH" /* ... */\ |
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| 49 | "shl EDX,8" /* ... */\ |
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| 50 | "mov DL,DH" /* ... */\ |
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| 51 | "call __STOSB" /* do store */\ |
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| 52 | "pop EAX" /* restore return value*/\ |
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| 53 | parm [eax] [edx] [ecx] \ |
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| 54 | value [eax]; |
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| 55 | #endif |
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| 56 | |||
| 57 | _WCRTLINK VOID_WC_TYPE *__F_NAME(memset,wmemset)( VOID_WC_TYPE *dst, INT_WC_TYPE c, size_t len ) |
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| 58 | { |
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| 59 | #if defined(__INLINE_FUNCTIONS__) && !defined(__WIDECHAR__) && defined(_M_IX86) |
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| 60 | #if defined(__386__) |
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| 61 | return( __set386( dst, c, len ) ); |
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| 62 | #else |
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| 63 | return( _inline_memset( dst, c, len ) ); |
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| 64 | #endif |
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| 65 | #else |
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| 66 | CHAR_TYPE *p; |
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| 67 | |||
| 68 | for( p = dst; len; --len ) { |
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| 69 | *p++ = c; |
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| 70 | } |
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| 71 | return( dst ); |
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| 72 | #endif |
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| 73 | } |