/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Computer Consoles Inc.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

#if defined(LIBC_SCCS) && !defined(lint)
	.asciz "@(#)udiv.s	5.1 (Berkeley) 1/30/91"
#endif /* LIBC_SCCS and not lint */

/*
 * Unsigned divide.
 *
 * udiv(dividend, divisor)
 */
#include "DEFS.h"

ASENTRY(udiv, 0)
	bitl	$0x80000000,8(fp)	#  if (divisor & 0x80000000){
	jeql	1f			  
	cmpl	8(fp),4(fp)		#  if (divisor > dividend )
	jlequ	2f
	clrl	r0			#      return(0);
	ret
2:					#  else
	movl	$1,r0			#      return(1);}
	ret
1:
	clrl	r2			#  return(dividend/divisor);
	movl	4(fp),r3
	ediv	8(fp),r2,r0,r1
	ret

/*
 * audiv(dividendp, divisor) -- like udiv but uses address of dividend.
 *	Implements /= avoiding side effects in the dividend expression.
 */
ASENTRY(audiv, 0)
	bitl	$0x80000000,8(fp)	#  if (divisor & 0x80000000){
	jeql	1f			  
	cmpl	8(fp),*4(fp)		#  if (divisor > dividend )
	jlequ	2f
	clrl	r0			#      return(0);
	jbr	3f
2:					#  else
	movl	$1,r0			#      return(1);}
	jbr	3f
1:
	clrl	r2			#  return(dividend/divisor);
	movl	*4(fp),r3
	ediv	8(fp),r2,r0,r1
3:
	movl	r0,*4(fp)
	ret