25 lines
330 B
C
25 lines
330 B
C
/*
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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 <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__("sfsr %0" : "=r" (old));
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new = old;
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new &= ~(0x03 << 7);
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new |= ((rnd_dir & 0x03) << 7);
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__asm__("lfsr %0" : : "r" (new));
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return (old >> 7) & 0x03;
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}
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