xref: /dragonfly/contrib/openbsd_libm/arch/amd64/s_ceil.S (revision a27bb01fb90c87959b0c0dfacf7dd85d1308a35f) 
1/*        $OpenBSD: s_ceil.S,v 1.3 2009/04/08 22:30:41 martynas Exp $ */
2/*
3 * Written by J.T. Conklin <jtc@NetBSD.org>.
4 * Public domain.
5 */
6
7#include <machine/asm.h>
8
9#include "abi.h"
10
11ENTRY(ceil)
12          fstcw     -12(%rsp)
13          movw      -12(%rsp),%dx
14          orw       $0x0800,%dx
15          andw      $0xfbff,%dx
16          movw      %dx,-16(%rsp)
17          fldcw     -16(%rsp)
18          movsd     %xmm0,-8(%rsp)
19          fldl      -8(%rsp)
20          frndint
21          fldcw     -12(%rsp)
22          fstpl     -8(%rsp)
23          movsd     -8(%rsp),%xmm0
24          ret
25END(ceil)
26
27          .section .note.GNU-stack,"",%progbits
28