VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/math/remainder.asm@ 18188

Last change on this file since 18188 was 16316, checked in by vboxsync, 16 years ago

IPRT/math: use xSP and friends from asmdefs.mac instead of cooking our own in each file.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 1.8 KB
Line 
1; $Id: remainder.asm 16316 2009-01-28 14:26:48Z vboxsync $
2;; @file
3; IPRT - No-CRT remainder - AMD64 & X86.
4;
5
6;
7; Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 (GPL) as published by the Free Software
13; Foundation, in version 2 as it comes in the "COPYING" file of the
14; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16;
17; The contents of this file may alternatively be used under the terms
18; of the Common Development and Distribution License Version 1.0
19; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20; VirtualBox OSE distribution, in which case the provisions of the
21; CDDL are applicable instead of those of the GPL.
22;
23; You may elect to license modified versions of this file under the
24; terms and conditions of either the GPL or the CDDL or both.
25;
26; Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27; Clara, CA 95054 USA or visit http://www.sun.com if you need
28; additional information or have any questions.
29;
30
31%include "iprt/asmdefs.mac"
32
33BEGINCODE
34
35;;
36; See SUS.
37; @returns st(0)
38; @param rd1 [ebp + 8h] xmm0
39; @param rd2 [ebp + 10h] xmm1
40BEGINPROC RT_NOCRT(remainder)
41 push xBP
42 mov xBP, xSP
43 sub xSP, 20h
44;int3
45
46%ifdef RT_ARCH_AMD64
47 movsd [rsp + 10h], xmm1
48 movsd [rsp], xmm0
49 fld qword [rsp + 10h]
50 fld qword [rsp]
51%else
52 fld qword [ebp + 10h]
53 fld qword [ebp + 8h]
54%endif
55
56 fprem1
57 fstsw ax
58 test ah, 04h
59 jnz .done
60 fstp st1
61
62.done:
63%ifdef RT_ARCH_AMD64
64 fstp qword [rsp]
65 movsd xmm0, [rsp]
66%endif
67
68 leave
69 ret
70ENDPROC RT_NOCRT(remainder)
71
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