1/* $NetBSD: fpsetround.S,v 1.2 1998/01/09 03:45:06 perry Exp $ */ 2 3/* 4 * Written by Charles M. Hannum, Apr 9, 1995 5 * Public domain. 6 */ 7 8#include <machine/asm.h> 9 10ENTRY(fpsetround) 11 subl $4,%esp 12 13 fnstcw (%esp) 14 movl (%esp),%eax 15 16 rorl $10,%eax 17 movl %eax,%edx 18 andl $3,%eax 19 20 subl %eax,%edx 21 movl 8(%esp),%ecx 22 andl $3,%ecx 23 orl %ecx,%edx 24 roll $10,%edx 25 movl %edx,(%esp) 26 fldcw (%esp) 27 28 addl $4,%esp 29 ret 30