1998-01-09 06:15:09 +03:00
|
|
|
/* $NetBSD: fpsetmask.c,v 1.2 1998/01/09 03:15:17 perry Exp $ */
|
|
|
|
|
|
1995-04-11 01:09:06 +04:00
|
|
|
/*
|
|
|
|
|
* Written by J.T. Conklin, Apr 10, 1995
|
|
|
|
|
* Public domain.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <ieeefp.h>
|
|
|
|
|
|
|
|
|
|
fp_except
|
|
|
|
|
fpsetmask(mask)
|
|
|
|
|
fp_except mask;
|
|
|
|
|
{
|
|
|
|
|
fp_except old;
|
|
|
|
|
fp_except 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;
|
|
|
|
|
}
|
