Annotation of sys/lib/libkern/arch/i386/scanc.S, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: scanc.S,v 1.2 1996/09/27 06:47:48 mickey Exp $ */
2: /* $NetBSD: scanc.S,v 1.5 1994/10/26 06:39:13 cgd Exp $ */
3:
4: /*
5: * Copyright (c) 1994 Charles Hannum. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by Charles Hannum.
18: * 4. The name of the author may not be used to endorse or promote products
19: * derived from this software without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: #include "DEFS.h"
34:
35: ENTRY(scanc)
36: movl 4(%esp),%ecx
37: testl %ecx,%ecx
38: jz 3f
39: pushl %esi
40: pushl %edi
41: movl 16(%esp),%esi
42: movl 20(%esp),%edi
43: movb 24(%esp),%dl
44: xorl %eax,%eax
45: cld
46: 1:
47: lodsb
48: testb %dl,(%eax,%edi)
49: jnz 2f
50: decl %ecx
51: jnz 1b
52: 2:
53: popl %edi
54: popl %esi
55: 3:
56: movl %ecx,%eax
57: ret
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