xref: /freebsd/lib/msun/i387/s_ceill.S (revision 8a744de27eef2a4266ce01b57267c42ff78ad488)
1/*
2 * Based on code written by J.T. Conklin <jtc@NetBSD.org>.
3 * Public domain.
4 */
5
6#include <machine/asm.h>
7__FBSDID("$FreeBSD$")
8
9ENTRY(ceill)
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	$0x0800,%dx		/* round towards +oo */
17	andw	$0xfbff,%dx
18	movw	%dx,-8(%ebp)
19	fldcw	-8(%ebp)		/* load modified 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(ceill)
29
30	.section .note.GNU-stack,"",%progbits
31