1 /* $NetBSD: fpsetround.c,v 1.2 1996/09/16 18:10:51 jonathan Exp $ */ 2 3 /* 4 * Written by J.T. Conklin, Apr 11, 1995 5 * Public domain. 6 */ 7 8 #include <ieeefp.h> 9 10 fp_rnd 11 fpsetround(rnd_dir) 12 fp_rnd rnd_dir; 13 { 14 fp_rnd old; 15 fp_rnd new; 16 17 __asm__("cfc1 %0,$31" : "=r" (old)); 18 19 new = old; 20 new &= ~0x03; 21 new |= (rnd_dir & 0x03); 22 23 __asm__("ctc1 %0,$31" : : "r" (new)); 24 25 return old & 0x03; 26 } 27