1/*	$OpenBSD: s_floorf.S,v 1.5 2022/12/27 17:10:07 jmc Exp $ */
2/*
3 * Written by J.T. Conklin <jtc@netbsd.org>.
4 * Public domain.
5 */
6
7#include "DEFS.h"
8
9ENTRY(floorf)
10	subl	$8,%esp
11
12	fstcw	4(%esp)		/* store fpu control word */
13	movw	4(%esp),%dx
14	orw	$0x0400,%dx		/* round towards -oo */
15	andw	$0xf7ff,%dx
16	movw	%dx,(%esp)
17	fldcw	(%esp)		/* load modified control word */
18
19	flds	12(%esp);		/* round */
20	frndint
21
22	fldcw	4(%esp)		/* restore original control word */
23
24	addl	$8,%esp
25	ret
26END_STD(floorf)
27