NetBSD/lib/libc/arch/mips/gen/fpsetmask.c

25 lines
340 B
C

/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#include <ieeefp.h>
fp_except
fpsetmask(mask)
fp_except mask;
{
fp_except old;
fp_except new;
__asm__("cfc1 %0,$31" : "=r" (old));
new = old;
new &= ~(0x1f << 7);
new |= ((mask & 0x1f) << 7);
__asm__("ctc1 %0,$31" : : "r" (new));
return (old >> 7) & 0x1f;
}