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CPU: Use lookup tables for memory access

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This commit is contained in:
Stenzek
2023-10-01 16:30:28 +10:00
parent 05fe925409
commit 56fc207af6
9 changed files with 1930 additions and 1530 deletions
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20
src/core/cpu_code_cache.cpp
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@ -263,8 +263,7 @@ void Initialize()
}
#endif
AllocateFastMap();
AllocateFastMap();
#ifdef ENABLE_RECOMPILER
if (g_settings.IsUsingRecompiler())
@ -531,7 +530,9 @@ void Flush()
}
#ifndef _MSC_VER
void __debugbreak() {}
void __debugbreak()
{
}
#endif
void LogCurrentState()
@ -1127,7 +1128,7 @@ bool InitializeFastmem()
}
Bus::UpdateFastmemViews(mode);
CPU::UpdateFastmemBase();
CPU::UpdateMemoryPointers();
return true;
}
@ -1135,21 +1136,22 @@ void ShutdownFastmem()
{
Common::PageFaultHandler::RemoveHandler(&s_host_code_map);
Bus::UpdateFastmemViews(CPUFastmemMode::Disabled);
CPU::UpdateFastmemBase();
CPU::UpdateMemoryPointers();
}
#ifdef ENABLE_MMAP_FASTMEM
Common::PageFaultHandler::HandlerResult MMapPageFaultHandler(void* exception_pc, void* fault_address, bool is_write)
{
if (static_cast<u8*>(fault_address) < g_state.fastmem_base ||
(static_cast<u8*>(fault_address) - g_state.fastmem_base) >= static_cast<ptrdiff_t>(Bus::FASTMEM_ARENA_SIZE))
if (static_cast<u8*>(fault_address) < static_cast<u8*>(g_state.fastmem_base) ||
(static_cast<u8*>(fault_address) - static_cast<u8*>(g_state.fastmem_base)) >=
static_cast<ptrdiff_t>(Bus::FASTMEM_ARENA_SIZE))
{
return Common::PageFaultHandler::HandlerResult::ExecuteNextHandler;
}
const PhysicalMemoryAddress fastmem_address =
static_cast<PhysicalMemoryAddress>(static_cast<ptrdiff_t>(static_cast<u8*>(fault_address) - g_state.fastmem_base));
const PhysicalMemoryAddress fastmem_address = static_cast<PhysicalMemoryAddress>(
static_cast<ptrdiff_t>(static_cast<u8*>(fault_address) - static_cast<u8*>(g_state.fastmem_base)));
Log_DevPrintf("Page fault handler invoked at PC=%p Address=%p %s, fastmem offset 0x%08X", exception_pc, fault_address,
is_write ? "(write)" : "(read)", fastmem_address);