11.3Smaxv/*	$NetBSD: skpc.S,v 1.3 2017/10/30 17:13:39 maxv Exp $	*/
21.1Sfvdl
31.3Smaxv/*
41.1Sfvdl * Copyright (c) 1998 The NetBSD Foundation, Inc.
51.1Sfvdl * All rights reserved.
61.1Sfvdl *
71.1Sfvdl * This code is derived from software contributed to The NetBSD Foundation
81.1Sfvdl * by Charles M. Hannum.
91.1Sfvdl *
101.1Sfvdl * Redistribution and use in source and binary forms, with or without
111.1Sfvdl * modification, are permitted provided that the following conditions
121.1Sfvdl * are met:
131.1Sfvdl * 1. Redistributions of source code must retain the above copyright
141.1Sfvdl *    notice, this list of conditions and the following disclaimer.
151.1Sfvdl * 2. Redistributions in binary form must reproduce the above copyright
161.1Sfvdl *    notice, this list of conditions and the following disclaimer in the
171.1Sfvdl *    documentation and/or other materials provided with the distribution.
181.1Sfvdl *
191.1Sfvdl * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
201.1Sfvdl * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
211.1Sfvdl * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
221.1Sfvdl * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
231.1Sfvdl * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
241.1Sfvdl * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
251.1Sfvdl * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
261.1Sfvdl * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
271.1Sfvdl * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
281.1Sfvdl * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
291.1Sfvdl * POSSIBILITY OF SUCH DAMAGE.
301.1Sfvdl */
311.1Sfvdl
321.1Sfvdl/*
331.1Sfvdl * Adapted for NetBSD/x86_64 by Frank van der Linden <fvdl@wasabisystems.com>
341.1Sfvdl */
351.1Sfvdl
361.1Sfvdl#include <machine/asm.h>
371.1Sfvdl
381.1SfvdlENTRY(skpc)
391.1Sfvdl	movl	%edi,%eax
401.1Sfvdl	movq	%rsi,%rcx
411.1Sfvdl	movq	%rdx,%rdi
421.1Sfvdl	cld
431.1Sfvdl	repe
441.1Sfvdl	scasb
451.1Sfvdl	je	1f
461.1Sfvdl	incq	%rcx
471.1Sfvdl1:
481.1Sfvdl	movl	%ecx,%eax
491.1Sfvdl	ret
501.3SmaxvEND(skpc)
51