1 /* $NetBSD: fpsetround.c,v 1.2 1998/01/09 03:15:18 perry Exp $ */ 2 3 /* 4 * Written by J.T. Conklin, Apr 10, 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__("st %%fsr,%0" : "=m" (*&old)); 18 19 new = old; 20 new &= ~(0x03 << 30); 21 new |= ((rnd_dir & 0x03) << 30); 22 23 __asm__("ld %0,%%fsr" : : "m" (*&new)); 24 25 return (old >> 30) & 0x03; 26 } 27