PCSX2 Documentation/PCSX2 EE Recompiler: Difference between revisions
Jump to navigation
Jump to search
PCSX2 Documentation/PCSX2 EE Recompiler (view source)
Revision as of 09:33, 4 November 2015
, 4 November 2015→Memory Protection
| Line 73: | Line 73: | ||
A naive implementation would be to instrument all write to detect corresponding block. However it will cost a big penalty for each memory write. Another one will be to check the content of the instruction block at each execution. Again slow. A more complex implementation will use the page fault signal handler mechanism to detect invalid write. Guess what, we choose the later. | A naive implementation would be to instrument all write to detect corresponding block. However it will cost a big penalty for each memory write. Another one will be to check the content of the instruction block at each execution. Again slow. A more complex implementation will use the page fault signal handler mechanism to detect invalid write. Guess what, we choose the later. | ||
* <code>C++ function: void mmap_MarkCountedRamPage( u32 paddr )</code> | |||
* <code>C++ function: int mmap_GetRamPageInfo( u32 paddr )</code> | |||
* <code>C++ function: void mmap_ClearCpuBlock( uint offset )</code> | |||
* <code>C++ function: void dyna_page_reset(u32 start, u32 sz)</code> | |||
* <code>C++ function: void dyna_block_discard(u32 start, u32 sz)</code> | |||
* <code>C++ function: void recClear(u32 addr, u32 size)</code> | |||
* <code>C++ function: void mmap_PageFaultHandler::OnPageFaultEvent( const PageFaultInfo& info, bool& handled )</code> | |||
* <code>C++ array: u16 manual_page[Ps2MemSize::MainRam >> 12]</code> | |||
* <code>C++ array: u8 manual_counter[Ps2MemSize::MainRam >> 12]</code> | |||
* <code>C++ array: vtlb_PageProtectionInfo m_PageProtectInfo[Ps2MemSize::MainRam >> 12]</code> | |||
==== The Automatic Protection ==== | ==== The Automatic Protection ==== | ||