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Turn the X86 emitter into a class, so the code pointer is no longer a global, yay! Created XCodeBlock that derives from XEmitter, and the Jit now derives from XCodeBlock so it can call all ADD SUB JNZ etc without having to prefix them with "emit.". I think someone's gonna like this.
There's some cleanup still to be done, but hey, it works. There shouldn't be a noticable speed difference. I hope GCC doesn't have a problem with the "member function pointers" I used. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1594 8ced0084-cf51-0410-be5f-012b33b47a6e
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31 changed files with 1297 additions and 1153 deletions
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#ifndef _THUNK_H
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#define _THUNK_H
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#include <map>
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#include "Common.h"
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#include "x64Emitter.h"
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// This simple class creates a wrapper around a C/C++ function that saves all fp state
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// before entering it, and restores it upon exit. This is required to be able to selectively
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// call functions from generated code, without inflicting the performance hit and increase
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// NOT THREAD SAFE. This may only be used from the CPU thread.
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// Any other thread using this stuff will be FATAL.
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void Thunk_Init();
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void Thunk_Reset();
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void Thunk_Shutdown();
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class ThunkManager : public Gen::XCodeBlock
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{
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std::map<void *, const u8 *> thunks;
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void *ProtectFunction(void *function, int num_params);
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const u8 *save_regs;
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const u8 *load_regs;
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public:
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void Init();
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void Reset();
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void Shutdown();
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void *ProtectFunction(void *function, int num_params);
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};
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extern ThunkManager thunks;
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#endif
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