27 lines
419 B
C
27 lines
419 B
C
/*
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* Written by J.T. Conklin, Apr 10, 1995
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* Public domain.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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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3, /* round to negative infinity */
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2 /* round to positive infinity */
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};
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int
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__flt_rounds()
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{
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int x;
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__asm("st %%fsr,%0" : "=m" (*&x));
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return map[(x >> 30) & 0x03];
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}
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