28 lines
402 B
C
28 lines
402 B
C
|
/*
|
||
|
|
* Written by J.T. Conklin, Apr 10, 1995
|
||
|
|
* Public domain.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
__FBSDID("$FreeBSD$");
|
||
|
|
|
||
|
|
#include <ieeefp.h>
|
||
|
|
|
||
|
|
fp_except_t
|
||
|
|
fpsetmask(mask)
|
||
|
|
fp_except_t mask;
|
||
|
|
{
|
||
|
|
fp_except_t old;
|
||
|
|
fp_except_t new;
|
||
|
|
|
||
|
|
__asm__("st %%fsr,%0" : "=m" (*&old));
|
||
|
|
|
||
|
|
new = old;
|
||
|
|
new &= ~(0x1f << 23);
|
||
|
|
new |= ((mask & 0x1f) << 23);
|
||
|
|
|
||
|
|
__asm__("ld %0,%%fsr" : : "m" (*&new));
|
||
|
|
|
||
|
|
return (old >> 23) & 0x1f;
|
||
|
|
}
|