e415d48872
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.
32 lines
726 B
C
32 lines
726 B
C
/* $NetBSD: flt_rounds.c,v 1.5 2012/03/23 09:34:09 skrll Exp $ */
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/* $OpenBSD: flt_rounds.c,v 1.3 2002/10/21 18:41:05 mickey Exp $ */
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/*
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* Written by Miodrag Vallat. Public domain.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: flt_rounds.c,v 1.5 2012/03/23 09:34:09 skrll Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <sys/types.h>
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#include <machine/float.h>
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static const int map[] = {
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1, /* round to nearest */
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0, /* round to zero */
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2, /* round to positive infinity */
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3 /* round to negative infinity */
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};
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int
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__flt_rounds(void)
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{
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uint64_t fpsr;
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__asm volatile("fstd %%fr0,0(%1)" : "=m" (fpsr) : "r" (&fpsr));
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return map[(unsigned int)(fpsr >> 41) & 0x03];
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}
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