[unix-history] / usr / src / lib / libc / quad / udivdi3.c

/*-
 * Copyright (c) 1992 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)udivdi3.c	5.1 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include "longlong.h"

extern void __bdiv ();

long long 
__udivdi3 (u, v)
     long long u, v;
{
  unsigned long a[2][2], b[2], q[2], r[2];
  long_long w;
  long_long uu, vv;

  uu.ll = u;
  vv.ll = v;

  a[HIGH][HIGH] = 0;
  a[HIGH][LOW] = 0;
  a[LOW][HIGH] = uu.s.high;
  a[LOW][LOW] = uu.s.low;
  b[HIGH] = vv.s.high;
  b[LOW] = vv.s.low;

  __bdiv (a, b, q, r, sizeof a, sizeof b);

  w.s.high = q[HIGH];
  w.s.low = q[LOW];
  return w.ll;
}
Commit	Line	Data
89a9f6b5 KB	1	/*-
	2	* Copyright (c) 1992 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* %sccs.include.redist.c%
	6	*/
	7
	8	#if defined(LIBC_SCCS) && !defined(lint)
	9	static char sccsid[] = "@(#)udivdi3.c 5.1 (Berkeley) %G%";
	10	#endif /* LIBC_SCCS and not lint */
	11
	12	#include "longlong.h"
	13
	14	extern void __bdiv ();
	15
	16	long long
	17	__udivdi3 (u, v)
	18	long long u, v;
	19	{
	20	unsigned long a[2][2], b[2], q[2], r[2];
	21	long_long w;
	22	long_long uu, vv;
	23
	24	uu.ll = u;
	25	vv.ll = v;
	26
	27	a[HIGH][HIGH] = 0;
	28	a[HIGH][LOW] = 0;
	29	a[LOW][HIGH] = uu.s.high;
	30	a[LOW][LOW] = uu.s.low;
	31	b[HIGH] = vv.s.high;
	32	b[LOW] = vv.s.low;
	33
	34	__bdiv (a, b, q, r, sizeof a, sizeof b);
	35
	36	w.s.high = q[HIGH];
	37	w.s.low = q[LOW];
	38	return w.ll;
	39	}