strcend.c
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上传日期:2007-04-14
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- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; 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 <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