13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 */
24 /*
25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
27 */
28
29 .file "acosl.s"
30
31 #include "libm.h"
32 LIBM_ANSI_PRAGMA_WEAK(acosl,function)
33 #include "libm_synonyms.h"
34
35 #undef fabs
36
37 ENTRY(acosl)
38 fldt 8(%rsp) / push x
39 fld1 / push 1
40 fld %st(1) / x , 1 , x
41 fabs / |x| , 1 , x
42 fucomip %st(1),%st
43 ja 9f
44 fadd %st(1),%st / 1+x,x
45 fldz
46 fucomip %st(1),%st
47 jp .L1
48 jne .L1
49 / x is -1
50 fstp %st(0) / -1
51 fstp %st(0) / empty NPX stack
52 fldpi
53 ret
54 .L1:
55 fxch %st(1) / x,1+x
|
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 */
24 /*
25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
27 */
28
29 .file "acosl.s"
30
31 #include "libm.h"
32 LIBM_ANSI_PRAGMA_WEAK(acosl,function)
33
34 ENTRY(acosl)
35 fldt 8(%rsp) / push x
36 fld1 / push 1
37 fld %st(1) / x , 1 , x
38 fabs / |x| , 1 , x
39 fucomip %st(1),%st
40 ja 9f
41 fadd %st(1),%st / 1+x,x
42 fldz
43 fucomip %st(1),%st
44 jp .L1
45 jne .L1
46 / x is -1
47 fstp %st(0) / -1
48 fstp %st(0) / empty NPX stack
49 fldpi
50 ret
51 .L1:
52 fxch %st(1) / x,1+x
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