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/* $NetBSD: flt_rounds.c,v 1.9 2015/03/19 21:22:59 joerg Exp $ */
/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: flt_rounds.c,v 1.9 2015/03/19 21:22:59 joerg Exp $");
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <machine/float.h>
#include <ieeefp.h>
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(void)
{
#ifdef SOFTFLOAT_FOR_GCC
return map[fpgetround()];
#else
int x;
__asm(".set push; .set noat; cfc1 %0,$31; .set pop" : "=r" (x));
return map[x & 0x03];
#endif
}
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