/* $OpenBSD: fpsetround.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */
/*
 * Written by Charles M. Hannum, Apr 9, 1995
 * Public domain.
 */

#include <machine/asm.h>

ENTRY(fpsetround)
        subl $4,%esp

        fnstcw (%esp)
        movl (%esp),%eax

        rorl $10,%eax
        movl %eax,%edx
        andl $3,%eax

        subl %eax,%edx
        movl 8(%esp),%ecx
        andl $3,%ecx
        orl %ecx,%edx
        roll $10,%edx
        movl %edx,(%esp)
        fldcw (%esp)

        addl $4,%esp
        ret