xref: /relibc/openlibm/i387/s_floorl.S (revision 307d7361c5b987d6a73cf5dc8abc170c5ed9807b)
1/*
2 * Based on code written by J.T. Conklin <jtc@NetBSD.org>.
3 * Public domain.
4 */
5
6#include <i387/bsd_asm.h>
7//__FBSDID("$FreeBSD: src/lib/msun/i387/s_floorl.S,v 1.3 2011/01/07 16:13:12 kib Exp $")
8
9ENTRY(floorl)
10	pushl	%ebp
11	movl	%esp,%ebp
12	subl	$8,%esp
13
14	fstcw	-4(%ebp)		/* store fpu control word */
15	movw	-4(%ebp),%dx
16	orw	$0x0400,%dx		/* round towards -oo */
17	andw	$0xf7ff,%dx
18	movw	%dx,-8(%ebp)
19	fldcw	-8(%ebp)		/* load modfied control word */
20
21	fldt	8(%ebp)			/* round */
22	frndint
23
24	fldcw	-4(%ebp)		/* restore original control word */
25
26	leave
27	ret
28END(floorl)
29
30
31