/* $OpenBSD: fpsetmask.c,v 1.4 2013/01/05 11:20:55 miod Exp $ */ /* * Written by J.T. Conklin, Apr 10, 1995 * Public domain. * Porting to m88k by Nivas Madhur. */ #include fp_except fpsetmask(mask) fp_except mask; { fp_except old; fp_except new; __asm__ volatile("fldcr %0, %%fcr63" : "=r" (old)); new = old; new &= ~0x1f; /* clear bottom 5 bits and */ new |= (mask & 0x1f); /* set them to mask */ __asm__ volatile("fstcr %0, %%fcr63" : : "r" (new)); return (old & 0x1f); }