27 lines
412 B
C
27 lines
412 B
C
/* $NetBSD: fpsetround.c,v 1.2 1998/01/09 03:15:18 perry Exp $ */
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/*
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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 <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__("st %%fsr,%0" : "=m" (*&old));
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new = old;
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new &= ~(0x03 << 30);
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new |= ((rnd_dir & 0x03) << 30);
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__asm__("ld %0,%%fsr" : : "m" (*&new));
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return (old >> 30) & 0x03;
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}
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