blob: 289ed7cad3ab531f469ea1192434937b5d30eb8f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#include <sys/types.h>
#include <machine/float.h>
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD: flt_rounds.c,v 1.3 1997/08/01 21:36:28 deraadt Exp $";
#endif /* LIBC_SCCS and not lint */
static const int map[] = {
1, /* round to nearest */
0, /* round to zero */
2, /* round to positive infinity */
3 /* round to negative infinity */
};
int
__flt_rounds()
{
int x;
__asm__("cfc1 %0,$31" : "=r" (x));
return map[x & 0x03];
}
|
