1/*
2 * Written by J.T. Conklin <jtc@netbsd.org>.
3 * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
4 * Changes for x86-64 by Andreas Jaeger <aj@suse.de>
5 * Public domain.
6 */
7
8#include <machine/asm.h>
9
10
11ENTRY(__ceill)
12 fldt 8(%rsp)
13
14 fstcw -4(%rsp) /* store fpu control word */
15
16 /* We use here %edx although only the low 1 bits are defined.
17 But none of the operations should care and they are faster
18 than the 16 bit operations. */
19 movl $0x0800,%edx /* round towards +oo */
20 orl -4(%rsp),%edx
21 andl $0xfbff,%edx
22 movl %edx,-8(%rsp)
23 fldcw -8(%rsp) /* load modified control word */
24
25 frndint /* round */
26
27 fldcw -4(%rsp) /* restore original control word */
28
29 ret
30END (__ceill)
31weak_alias (__ceill, ceill)
32