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/* $OpenBSD: s_ceil.S,v 1.3 2005/08/02 11:17:31 espie Exp $ */
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#include <machine/asm.h>
ENTRY(ceil)
subl $8,%esp
fstcw 4(%esp) /* store fpu control word */
movw 4(%esp),%dx
orw $0x0800,%dx /* round towards +oo */
andw $0xfbff,%dx
movw %dx,(%esp)
fldcw (%esp) /* load modfied control word */
fldl 12(%esp); /* round */
frndint
fldcw 4(%esp) /* restore original control word */
addl $8,%esp
ret
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