29 lines
429 B
C
29 lines
429 B
C
/*
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* Written by J.T. Conklin, Apr 11, 1995
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* Public domain.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char rcsid[] = "$OpenBSD$";
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#endif /* LIBC_SCCS and not lint */
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#include <ieeefp.h>
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fp_rnd
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fpsetround(rnd_dir)
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fp_rnd rnd_dir;
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{
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fp_rnd old;
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fp_rnd new;
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__asm__("cfc1 %0,$31" : "=r" (old));
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new = old;
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new &= ~0x03;
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new |= (rnd_dir & 0x03);
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__asm__("ctc1 %0,$31" : : "r" (new));
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return old & 0x03;
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}
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