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| == EE Memory Emulation == | | == EE Memory Emulation == |
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| ''' DRAFT/JUNK OF OLD DATA '''
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| All those blocks are managed by the BaseBlocks class.
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| [code]
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| static BaseBlocks recBlocks;
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| [/code]
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| _DynGen_* functions generate dispatcher functions and return a function pointer to the function. Full initialization is done in _DynGen_Dispatchers.
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| * JITCompile (generated by _DynGen_JITCompile) will
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| 1/ Call recRecompile(cpuRegs.pc) to recompile the current block
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| 2/ Jump to the recompiled block PC_GETBLOCK(cpuRegs.pc)->m_pFnptr()
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| Basically all BASEBLOCK will contains JITCompile as init address.
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| * JITCompileInBlock (generated by _DynGen_JITCompileInBlock)
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| 1/ Jump to JITCompile
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| Basically after the compilation of BLOCK of size N. First BASEBLOCK
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| will contains the x86 address. The remaining N-1 BLOCK will contain
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| JITCompileInBlock.
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| * DispatcherReg (generated by _DynGen_DispatcherReg) will
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| 1/ Jump to the current block (Note. Stack won't be realigned)
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| * EnterRecompiledCode (generated by _DynGen_EnterRecompiledCode) will
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| 1/ Setup the base frame pointer
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| 2/ Align the stack pointer
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| 3/ Save edi/esi/ebx on the stack
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| 4/ Simulate a function call? (potentially to help debugger to unwind the stack)
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| 5/ Simulate the stack frame preparation "push ebp, mov ebp, esp"
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| 6/ Save esp, ebp into static variable (for debug check). Code can surely be removed.
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| 7/ Jump to DispatcherReg
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| 8/ Handle the return of DispatcherReg (Leave and restore edi/esi/ebx)
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| 9/ Handle the return of current function (leave and ret)
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| * ExitRecompiledCode is the return address of DispatcherReg (end of EnterRecompiledCode)
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| * DispatchBlockDiscard (generated by _DynGen_DispatchBlockDiscard) is a wrapper to the C++ function dyna_block_discard
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| * DispatchPageReset (generated by _DynGen_DispatchPageReset) is a wrapper to the C++ function dyna_page_reset
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| [hr]
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| The details of the "recompilation" stage
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| Input: the PC (first instruction address)
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| Output: x86 code in a buffer that is ready to be executed.
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