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.
31 lines
726 B
C
31 lines
726 B
C
/* $NetBSD: flt_rounds.c,v 1.5 2012/03/23 09:34:09 skrll Exp $ */
|
|
|
|
/* $OpenBSD: flt_rounds.c,v 1.3 2002/10/21 18:41:05 mickey Exp $ */
|
|
|
|
/*
|
|
* Written by Miodrag Vallat. Public domain.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: flt_rounds.c,v 1.5 2012/03/23 09:34:09 skrll 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)
|
|
{
|
|
uint64_t fpsr;
|
|
|
|
__asm volatile("fstd %%fr0,0(%1)" : "=m" (fpsr) : "r" (&fpsr));
|
|
return map[(unsigned int)(fpsr >> 41) & 0x03];
|
|
}
|