mirror of
https://github.com/pj64team/Project64-Legacy.git
synced 2026-04-02 04:36:25 +00:00
f5b4998a70
The const evaluation for virtual address loads and stores is sometimes too eager. This bug causes the broken mechanism in the Indiana Jones intro. The fix is to deoptimize the const evaluation when virtual address resolution fails at compile time. This generates code that evaluates the VAddr at runtime (a deoptimization). Regenerating the block after it has run successfully just isn't an option right now. It would have to recompile everything, since invalidating only a subset of compiled blocks is not available. This would be a good way to regain the const evaluation optimization, if it were possible.
80 lines
3.7 KiB
C
80 lines
3.7 KiB
C
/*
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* Project 64 - A Nintendo 64 emulator.
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*
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* (c) Copyright 2001 zilmar (zilmar@emulation64.com) and
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* Jabo (jabo@emulation64.com).
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*
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* pj64 homepage: www.pj64.net
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*
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* Permission to use, copy, modify and distribute Project64 in both binary and
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* source form, for non-commercial purposes, is hereby granted without fee,
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* providing that this license information and copyright notice appear with
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* all copies and any derived work.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event shall the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Project64 is freeware for PERSONAL USE only. Commercial users should
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* seek permission of the copyright holders first. Commercial use includes
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* charging money for Project64 or software derived from Project64.
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*
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* The copyright holders request that bug fixes and improvements to the code
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* should be forwarded to them so if they want them.
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*
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*/
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#define LargeCompileBufferSize 0x03200000
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#define NormalCompileBufferSize 0x01400000
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#define ROM_IN_MAPSPACE
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extern DWORD *TLB_ReadMap, *TLB_WriteMap, RdramSize, SystemRdramSize;
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extern BYTE *N64MEM, *RDRAM, *DMEM, *IMEM, *ROM;
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extern void ** JumpTable, ** DelaySlotTable;
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extern BYTE *RecompCode, *RecompPos;
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extern BOOL WrittenToRom;
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/* Memory Control */
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int Allocate_ROM ( void );
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int Allocate_Memory ( void );
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void Release_Memory ( void );
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/* CPU memory functions */
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int r4300i_Command_MemoryFilter ( DWORD dwExptCode, LPEXCEPTION_POINTERS lpEP );
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int r4300i_CPU_MemoryFilter ( DWORD dwExptCode, LPEXCEPTION_POINTERS lpEP );
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int r4300i_LB_NonMemory ( DWORD PAddr, DWORD * Value, BOOL SignExtend );
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BOOL r4300i_LB_VAddr ( DWORD VAddr, BYTE * Value );
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BOOL r4300i_LB_VAddr_NonCPU ( DWORD VAddr, BYTE * Value );
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BOOL r4300i_LD_VAddr ( DWORD VAddr, unsigned _int64 * Value );
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int r4300i_LH_NonMemory ( DWORD PAddr, DWORD * Value, int SignExtend );
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BOOL r4300i_LH_VAddr ( DWORD VAddr, WORD * Value );
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BOOL r4300i_LH_VAddr_NonCPU ( DWORD VAddr, WORD * Value );
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int r4300i_LW_NonMemory ( DWORD PAddr, DWORD * Value );
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void r4300i_LW_PAddr ( DWORD PAddr, DWORD * Value );
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BOOL r4300i_LW_VAddr ( DWORD VAddr, DWORD * Value );
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BOOL r4300i_LW_VAddr_NonCPU ( DWORD VAddr, DWORD * Value );
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int r4300i_SB_NonMemory ( DWORD PAddr, BYTE Value );
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BOOL r4300i_SB_VAddr ( DWORD VAddr, BYTE Value );
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BOOL r4300i_SB_VAddr_NonCPU ( DWORD VAddr, BYTE Value );
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BOOL r4300i_SD_VAddr ( DWORD VAddr, unsigned _int64 Value );
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int r4300i_SH_NonMemory ( DWORD PAddr, WORD Value );
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BOOL r4300i_SH_VAddr ( DWORD VAddr, WORD Value );
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BOOL r4300i_SH_VAddr_NonCPU ( DWORD VAddr, WORD Value );
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int r4300i_SW_NonMemory ( DWORD PAddr, DWORD Value );
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BOOL r4300i_SW_VAddr ( DWORD VAddr, DWORD Value );
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BOOL r4300i_SW_VAddr_NonCPU ( DWORD VAddr, DWORD Value );
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/* Recompiler Memory Functions */
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BOOL Compile_LB ( int Reg, DWORD Addr, BOOL SignExtend );
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BOOL Compile_LH ( int Reg, DWORD Addr, BOOL SignExtend );
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BOOL Compile_LW ( int Reg, DWORD Addr );
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BOOL Compile_SB_Const ( BYTE Value, DWORD Addr );
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BOOL Compile_SB_Register ( int x86Reg, DWORD Addr );
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BOOL Compile_SH_Const ( WORD Value, DWORD Addr );
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BOOL Compile_SH_Register ( int x86Reg, DWORD Addr );
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BOOL Compile_SW_Const ( DWORD Value, DWORD Addr );
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BOOL Compile_SW_Register ( int x86Reg, DWORD Addr );
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void ResetMemoryStack ( BLOCK_SECTION * Section );
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void ResetRecompCode ( void );
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