/[pcsx2_0.9.7]/trunk/common/include/x86emitter/x86emitter.h
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Annotation of /trunk/common/include/x86emitter/x86emitter.h

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Revision 62 - (hide annotations) (download)
Tue Sep 7 11:08:22 2010 UTC (9 years, 11 months ago) by william
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File size: 2906 byte(s)
Auto Commited Import of: pcsx2-0.9.7-r3738-debug in ./trunk
1 william 31 /* PCSX2 - PS2 Emulator for PCs
2     * Copyright (C) 2002-2010 PCSX2 Dev Team
3     *
4     * PCSX2 is free software: you can redistribute it and/or modify it under the terms
5     * of the GNU Lesser General Public License as published by the Free Software Found-
6     * ation, either version 3 of the License, or (at your option) any later version.
7     *
8     * PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
9     * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
10     * PURPOSE. See the GNU General Public License for more details.
11     *
12     * You should have received a copy of the GNU General Public License along with PCSX2.
13     * If not, see <http://www.gnu.org/licenses/>.
14     */
15    
16     /*
17     * ix86 public header v0.9.1
18     *
19     * Original Authors (v0.6.2 and prior):
20     * linuzappz <linuzappz@pcsx.net>
21     * alexey silinov
22     * goldfinger
23     * zerofrog(@gmail.com)
24     *
25     * Authors of v0.9.1:
26     * Jake.Stine(@gmail.com)
27     * cottonvibes(@gmail.com)
28     * sudonim(1@gmail.com)
29     */
30    
31 william 62 // PCSX2's New C++ Emitter
32     // --------------------------------------------------------------------------------------
33 william 31 // To use it just include the x86Emitter namespace into your file/class/function off choice.
34     //
35     // This header file is intended for use by public code. It includes the appropriate
36     // inlines and class definitions for efficient codegen. (code internal to the emitter
37     // should usually use ix86_internal.h instead, and manually include the
38     // ix86_inlines.inl file when it is known that inlining of ModSib functions are
39     // wanted).
40     //
41    
42     #pragma once
43    
44     #include "x86types.h"
45     #include "tools.h"
46     #include "instructions.h"
47    
48     // Including legacy items for now, but these should be removed eventually,
49     // once most code is no longer dependent on them.
50     #include "legacy_types.h"
51     #include "legacy_instructions.h"
52    
53     // --------------------------------------------------------------------------------------
54     // CallAddress Macros -- An Optimization work-around hack!
55     // --------------------------------------------------------------------------------------
56     // MSVC 2008 fails to optimize direct invocation of static recompiled code buffers, instead
57     // insisting on "mov eax, immaddr; call eax". Likewise, GCC fails to optimize it also, unless
58     // the typecast is explicitly inlined. These macros account for these problems.
59     //
60    
61     #ifdef _MSC_VER
62    
63     # define CallAddress( ptr ) \
64     __asm{ call offset ptr }
65    
66     # define FastCallAddress( ptr, param1 ) \
67     __asm{ __asm mov ecx, param1 __asm call offset ptr }
68    
69     # define FastCallAddress2( ptr, param1, param2 ) \
70     __asm{ __asm mov ecx, param1 __asm mov edx, param2 __asm call offset ptr }
71    
72     #else
73    
74     # define CallAddress( ptr ) \
75     ( (void (*)()) &(ptr)[0] )()
76    
77     # define FastCallAddress( ptr, param1 ) \
78     ( (void (*)( int )) &(ptr)[0] )( param1 )
79    
80     # define FastCallAddress2( ptr, param1, param2 ) \
81     ( (void (*)( int, int )) &(ptr)[0] )( param1, param2 )
82    
83     #endif

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