32 lines
597 B
C
32 lines
597 B
C
/* $NetBSD: flt_rounds.c,v 1.4 1997/10/27 05:28:46 phil Exp $ */
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/*
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* Written by J.T. Conklin, Apr 28, 1995
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* 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 1.4 1997/10/27 05:28:46 phil Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <machine/cpufunc.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 __flt_rounds __P((void));
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int
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__flt_rounds(void)
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{
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int x;
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sfsr(x);
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return map[(x >> 7) & 0x03];
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}
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