| Current Path : /usr/src/lib/libc/i386/gen/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/lib/libc/i386/gen/flt_rounds.c |
/*
* Written by J.T. Conklin, Apr 10, 1995
* Public domain.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/lib/libc/i386/gen/flt_rounds.c 132383 2004-07-19 08:17:25Z das $");
#include <float.h>
static const int map[] = {
1, /* round to nearest */
3, /* round to zero */
2, /* round to negative infinity */
0 /* round to positive infinity */
};
int
__flt_rounds(void)
{
int x;
__asm("fnstcw %0" : "=m" (x));
return (map[(x >> 10) & 0x03]);
}