| 0,0 → 1,125 |
|---|
| /**************************************************************************** |
| * |
| * 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 strchr() and wcschr(). |
| * |
| ****************************************************************************/ |
| |
| |
| #include "variety.h" |
| #include "widechar.h" |
| #include <stddef.h> |
| #include <string.h> |
| #include "riscstr.h" |
| |
| #if defined(M_I86) && !defined(__WIDECHAR__) |
| |
| extern char * _scan1(); |
| |
| /* use scan1 to find the char we are looking for */ |
| |
| #if defined(__SMALL_DATA__) |
| #pragma aux _scan1 = 0xad /* L1:lodsw */\ |
| 0x38 0xd0 /* cmp al,dl */\ |
| 0x74 0x20 /* je L3 */\ |
| 0x84 0xc0 /* test al,al*/\ |
| 0x74 0x19 /* je L2 */\ |
| 0x38 0xd4 /* cmp ah,dl */\ |
| 0x74 0x19 /* je L4 */\ |
| 0x84 0xe4 /* test ah,ah*/\ |
| 0x74 0x11 /* je L2 */\ |
| 0xad /* lodsw */\ |
| 0x38 0xd0 /* cmp al,dl */\ |
| 0x74 0x0f /* je L3 */\ |
| 0x84 0xc0 /* test al,al*/\ |
| 0x74 0x08 /* je L2 */\ |
| 0x38 0xd4 /* cmp ah,dl */\ |
| 0x74 0x08 /* je L4 */\ |
| 0x84 0xe4 /* test ah,ah*/\ |
| 0x75 0xde /* jne L1 */\ |
| 0x31 0xf6 /* L2:xor si,si */\ |
| 0xa9 /* test ax,... */\ |
| 0x4e /* L3:dec si */\ |
| 0x4e /* L4:dec si */\ |
| parm caller [si] [dl]\ |
| value [si]\ |
| modify [ax si]; |
| #else |
| #pragma aux _scan1 = \ |
| 0x1e /* push ds */ \ |
| 0x8e 0xd9 /* mov ds,cx */ \ |
| 0x8c 0xda /* mov dx,ds */\ |
| 0xad /* L1:lodsw */\ |
| 0x38 0xd8 /* cmp al,bl */\ |
| 0x74 0x22 /* je L3 */\ |
| 0x84 0xc0 /* test al,al*/\ |
| 0x74 0x19 /* je L2 */\ |
| 0x38 0xdc /* cmp ah,bl */\ |
| 0x74 0x1b /* je L4 */\ |
| 0x84 0xe4 /* test ah,ah*/\ |
| 0x74 0x11 /* je L2 */\ |
| 0xad /* lodsw */\ |
| 0x38 0xd8 /* cmp al,bl */\ |
| 0x74 0x11 /* je L3 */\ |
| 0x84 0xc0 /* test al,al*/\ |
| 0x74 0x08 /* je L2 */\ |
| 0x38 0xdc /* cmp ah,bl */\ |
| 0x74 0x0a /* je L4 */\ |
| 0x84 0xe4 /* test ah,ah*/\ |
| 0x75 0xde /* jne L1 */\ |
| 0x31 0xf6 /* L2:xor si,si*/\ |
| 0x89 0xf2 /* mov dx,si */\ |
| 0xa9 /* test ax,... */\ |
| 0x4e /* L3:dec si */\ |
| 0x4e /* L4:dec si */\ |
| 0x1f /* pop ds */ \ |
| parm caller [cx si] [bl]\ |
| value [dx si]\ |
| modify [ax dx si]; |
| #endif |
| #endif |
| |
| |
| /* locate the first occurrence of c in the initial n characters of the |
| string pointed to by s. The terminating null character is considered |
| to be part of the string. |
| If the character c is not found, NULL is returned. |
| */ |
| #undef strchr |
| |
| |
| #if defined(__RISCSTR__) && defined(__WIDECHAR__) |
| _WCRTLINK CHAR_TYPE *__simple_wcschr( const CHAR_TYPE *s, INTCHAR_TYPE c ) |
| #else |
| _WCRTLINK CHAR_TYPE *__F_NAME(strchr,wcschr)( const CHAR_TYPE *s, INTCHAR_TYPE c ) |
| #endif |
| { |
| CHAR_TYPE cc = c; |
| do { |
| if( *s == cc ) return( (CHAR_TYPE *)s ); |
| } while( *s++ != NULLCHAR ); |
| return( NULL ); |
| } |