VirtualBox

source: vbox/trunk/src/VBox/Runtime/math/sinl.asm@ 3460

Last change on this file since 3460 was 2988, checked in by vboxsync, 18 years ago

InnoTek -> innotek part 4: more miscellaneous files.

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Line 
1; $Id: sinl.asm 2988 2007-06-01 17:36:09Z vboxsync $
2;; @file
3; innotek Portable Runtime - No-CRT sinl - AMD64 & X86.
4;
5
6;
7; Copyright (C) 2006-2007 innotek GmbH
8;
9; This file is part of VirtualBox Open Source Edition (OSE), as
10; available from http://www.virtualbox.org. This file is free software;
11; you can redistribute it and/or modify it under the terms of the GNU
12; General Public License as published by the Free Software Foundation,
13; in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14; distribution. VirtualBox OSE is distributed in the hope that it will
15; be useful, but WITHOUT ANY WARRANTY of any kind.
16;
17; If you received this file as part of a commercial VirtualBox
18; distribution, then only the terms of your commercial VirtualBox
19; license agreement apply instead of the previous paragraph.
20;
21
22
23%include "iprt/asmdefs.mac"
24
25BEGINCODE
26
27%ifdef __AMD64__
28 %define _SP rsp
29 %define _BP rbp
30 %define _S 8
31%else
32 %define _SP esp
33 %define _BP ebp
34 %define _S 4
35%endif
36
37;;
38; Compute the sine of lrd
39; @returns st(0)
40; @param lrd [_SP + _S*2]
41BEGINPROC RT_NOCRT(sinl)
42 push _BP
43 mov _BP, _SP
44 sub _SP, 10h
45
46 fld tword [_BP + _S*2]
47 fsin
48 fnstsw ax
49 test ah, 04h
50 jz .done
51
52 fldpi
53 fadd st0
54 fxch st1
55.again:
56 fprem1
57 fnstsw ax
58 test ah, 04h
59 jnz .again
60 fstp st1
61 fsin
62
63.done:
64 leave
65 ret
66ENDPROC RT_NOCRT(sinl)
67
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