flt_rounds.c revision 256281 
1172301Spjd/*
2172301Spjd * Written by J.T. Conklin, Apr 10, 1995
3172301Spjd * Public domain.
4172301Spjd */
5172301Spjd
6172301Spjd#include <sys/cdefs.h>
7172301Spjd__FBSDID("$FreeBSD: stable/10/lib/libc/ia64/gen/flt_rounds.c 132383 2004-07-19 08:17:25Z das $");
8172301Spjd
9172301Spjd#include <float.h>
10172301Spjd
11172301Spjdstatic const int map[] = {
12172301Spjd	1,	/* round to nearest */
13172301Spjd	3,	/* round to zero */
14172301Spjd	2,	/* round to negative infinity */
15172301Spjd	0	/* round to positive infinity */
16172301Spjd};
17172301Spjd
18172301Spjdint
19172301Spjd__flt_rounds(void)
20172301Spjd{
21172301Spjd	int x;
22172301Spjd
23172301Spjd	__asm("mov %0=ar.fpsr" : "=r" (x));
24172301Spjd        return (map[(x >> 10) & 0x03]);
25172301Spjd}
26172301Spjd