1 /* $OpenBSD: fpsetmask.c,v 1.3 2005/08/07 16:40:14 espie Exp $ */ 2 3 /* 4 * Written by J.T. Conklin, Apr 10, 1995 5 * Public domain. 6 * Porting to m88k by Nivas Madhur. 7 */ 8 9 #include <ieeefp.h> 10 11 fp_except 12 fpsetmask(mask) 13 fp_except mask; 14 { 15 fp_except old; 16 fp_except new; 17 18 __asm__ volatile("fldcr %0,fcr63" : "=r" (old)); 19 20 new = old; 21 new &= ~0x1f; /* clear bottom 5 bits and */ 22 new |= (mask & 0x1f); /* set them to mask */ 23 24 __asm__ volatile("fstcr %0,fcr63" : : "r" (new)); 25 26 return (old & 0x1f); 27 } 28