scanc.S revision 1.9
1 1.9 martin /* $NetBSD: scanc.S,v 1.9 2008/04/28 20:24:06 martin Exp $ */ 2 1.5 cgd 3 1.7 mycroft /*- 4 1.7 mycroft * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.7 mycroft * All rights reserved. 6 1.7 mycroft * 7 1.7 mycroft * This code is derived from software contributed to The NetBSD Foundation 8 1.7 mycroft * by Charles M. Hannum. 9 1.1 mycroft * 10 1.1 mycroft * Redistribution and use in source and binary forms, with or without 11 1.1 mycroft * modification, are permitted provided that the following conditions 12 1.1 mycroft * are met: 13 1.1 mycroft * 1. Redistributions of source code must retain the above copyright 14 1.1 mycroft * notice, this list of conditions and the following disclaimer. 15 1.1 mycroft * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 mycroft * notice, this list of conditions and the following disclaimer in the 17 1.1 mycroft * documentation and/or other materials provided with the distribution. 18 1.1 mycroft * 19 1.7 mycroft * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.7 mycroft * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.7 mycroft * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.7 mycroft * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.7 mycroft * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.7 mycroft * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.7 mycroft * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.7 mycroft * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.7 mycroft * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.7 mycroft * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.7 mycroft * POSSIBILITY OF SUCH DAMAGE. 30 1.1 mycroft */ 31 1.1 mycroft 32 1.8 drochner #include <machine/asm.h> 33 1.1 mycroft 34 1.1 mycroft ENTRY(scanc) 35 1.1 mycroft movl 4(%esp),%ecx 36 1.1 mycroft testl %ecx,%ecx 37 1.1 mycroft jz 3f 38 1.1 mycroft pushl %esi 39 1.2 mycroft pushl %edi 40 1.1 mycroft movl 16(%esp),%esi 41 1.2 mycroft movl 20(%esp),%edi 42 1.1 mycroft movb 24(%esp),%dl 43 1.2 mycroft xorl %eax,%eax 44 1.1 mycroft cld 45 1.1 mycroft 1: 46 1.1 mycroft lodsb 47 1.2 mycroft testb %dl,(%eax,%edi) 48 1.4 mycroft jnz 2f 49 1.4 mycroft decl %ecx 50 1.4 mycroft jnz 1b 51 1.1 mycroft 2: 52 1.2 mycroft popl %edi 53 1.1 mycroft popl %esi 54 1.1 mycroft 3: 55 1.1 mycroft movl %ecx,%eax 56 1.1 mycroft ret 57
Indexes created Thu Sep 25 16:09:42 GMT 2025