sys/arch/amiga/stand/bootblock/boot/muldi3.s
author martin <martin@NetBSD.org>
Mon, 28 Apr 2008 20:22:51 +0000
branchtrunk
changeset 169261 0fba8181c5ff
parent 77200 fffd2f87bd07
permissions -rw-r--r--
Remove clause 3 and 4 from TNF licenses

/*	$NetBSD: muldi3.s,v 1.7 2008/04/28 20:23:13 martin Exp $ */

/*-
 * Copyright (c) 1996 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Ignatios Souvatzis.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#include <machine/asm.h>

ENTRY_NOPROFILE(__muldi3)
	movml %d2/%d3/%d4/%d5/%d6,%sp@-	| 0..4 regs, 5 %pc, 6..9 parameters
	movml %sp@(24),%d2-%d5
|	movl %sp@(24),%d2
|	movl %sp@(28),%d3
|	movl %sp@(32),%d4
|	movl %sp@(36),%d5
	movq #0,%d0
	movq #0,%d1
	movq #63,%d6
L4:
	asrl #1,%d2
	roxrl #1,%d3
	jcc L5
	addl %d5,%d1
	addxl %d4,%d0
L5:
	addl %d5,%d5
	addxl %d4,%d4
L7:
	dbra %d6,L4
	movml %sp@+,%d2/%d3/%d4/%d5/%d6
	rts