freebsd-dev/lib/libc/mips/gen/fpsetsticky.c

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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_except
fpsetsticky(sticky)
fp_except sticky;
{
fp_except old;
fp_except new;
__asm__("cfc1 %0,$31" : "=r" (old));
new = old;
new &= ~(0x1f << 2);
new |= ((sticky & 0x1f) << 2);
__asm__("ctc1 %0,$31" : : "r" (new));
return (old >> 2) & 0x1f;
}