/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * This code is derived from software contributed to Berkeley by
 * Computer Consoles Inc.
 */

#if defined(LIBC_SCCS) && !defined(lint)
	.asciz "@(#)udiv.s	1.4 (Berkeley) 6/27/88"
#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