xref: /openbsd/lib/libm/arch/amd64/s_ceilf.S (revision 3cab2bb3)
1/*	$OpenBSD: s_ceilf.S,v 1.6 2018/07/03 22:43:34 mortimer Exp $ */
2/*
3 * Written by J.T. Conklin <jtc@NetBSD.org>.
4 * Public domain.
5 */
6
7#include <machine/asm.h>
8
9ENTRY(ceilf)
10	RETGUARD_SETUP(ceilf, r11)
11	fstcw	-8(%rsp)
12	movw	-8(%rsp),%dx
13	orw	$0x0800,%dx
14	andw	$0xfbff,%dx
15	movw	%dx,-12(%rsp)
16	fldcw	-12(%rsp)
17	movss	%xmm0,-4(%rsp)
18	flds	-4(%rsp)
19	frndint
20	fldcw	-8(%rsp)
21	fstps	-4(%rsp)
22	movss	-4(%rsp),%xmm0
23	RETGUARD_CHECK(ceilf, r11)
24	ret
25END(ceilf)
26