Home | History | Annotate | Line # | Download | only in gen
flt_rounds.c revision 1.2 
      1 /*	$NetBSD: flt_rounds.c,v 1.2 1996/09/16 18:10:42 jonathan Exp $	*/
      2 
      3 /*
      4  * Written by J.T. Conklin, Apr 11, 1995
      5  * Public domain.
      6  */
      7 
      8 static const int map[] = {
      9 	1,	/* round to nearest */
     10 	0,	/* round to zero */
     11 	2,	/* round to positive infinity */
     12 	3	/* round to negative infinity */
     13 };
     14 
     15 int
     16 __flt_rounds()
     17 {
     18 	int x;
     19 
     20 	__asm__("cfc1 %0,$31" : "=r" (x));
     21 	return map[x & 0x03];
     22 }
     23