minix/lib/libc/arch/sparc/gen/flt_rounds.c
Lionel Sambuc e415d48872 Libc update to simplify merge.
Bumping libc files for unsupported architectures, to simplify merging.
A bunch of small fixes:
 * in libutil update
 * the macro in endian.h
 * some undefined types due to clear separation from host.
 * Fix a warning for cdbr.c

Some modification which were required for the new build system:
 * inclusion path for const.h in sconst, still hacky
 * Removed default malloc.c which conflicts on some occasions.
2012-11-15 16:07:29 +01:00

30 lines
631 B
C

/* $NetBSD: flt_rounds.c,v 1.7 2012/03/21 00:38:34 christos Exp $ */
/*
* Written by J.T. Conklin, Apr 10, 1995
* Public domain.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: flt_rounds.c,v 1.7 2012/03/21 00:38:34 christos Exp $");
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <machine/float.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)
{
unsigned int x;
__asm("st %%fsr,%0" : "=m" (*&x));
return map[(x >> 30) & 0x03];
}