strcend.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:1k
- /* Copyright (C) 2000 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- /* File : strcend.c
- Author : Michael Widenius: ifdef MC68000
- Updated: 20 April 1984
- Defines: strcend()
- strcend(s, c) returns a pointer to the first place in s where c
- occurs, or a pointer to the end-null of s if c does not occur in s.
- */
- #include <my_global.h>
- #include "m_string.h"
- #if defined(MC68000) && defined(DS90)
- char *strcend(const char *s, pchar c)
- {
- asm(" movl 4(a7),a0 ");
- asm(" movl 8(a7),d1 ");
- asm(".L2: movb (a0)+,d0 ");
- asm(" cmpb d0,d1 ");
- asm(" beq .L1 ");
- asm(" tstb d0 ");
- asm(" bne .L2 ");
- asm(".L1: movl a0,d0 ");
- asm(" subql #1,d0 ");
- }
- #else
- char *strcend(register const char *s, register pchar c)
- {
- for (;;)
- {
- if (*s == (char) c) return (char*) s;
- if (!*s++) return (char*) s-1;
- }
- }
- #endif