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CPU/Recompiler: Use register cache for managing pc

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Reduces the number of loadstores after each instruction.
This commit is contained in:
Connor McLaughlin
2019-12-12 23:34:53 +10:00
parent 002d1cd4fd
commit aa52dbfeb8
7 changed files with 88 additions and 105 deletions
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11
src/core/cpu_code_cache.h
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@ -28,6 +28,8 @@ union CodeBlockKey
ALWAYS_INLINE u32 GetPC() const { return aligned_pc << 2; }
ALWAYS_INLINE void SetPC(u32 pc) { aligned_pc = pc >> 2; }
ALWAYS_INLINE u32 GetPCPhysicalAddress() const { return (aligned_pc << 2) & PHYSICAL_MEMORY_ADDRESS_MASK; }
ALWAYS_INLINE CodeBlockKey& operator=(const CodeBlockKey& rhs)
{
bits = rhs.bits;
@ -72,12 +74,15 @@ struct CodeBlock
const u32 GetPC() const { return key.GetPC(); }
const u32 GetSizeInBytes() const { return static_cast<u32>(instructions.size()) * sizeof(Instruction); }
const u32 GetStartPageIndex() const { return (key.GetPC() / CPU_CODE_CACHE_PAGE_SIZE); }
const u32 GetEndPageIndex() const { return ((key.GetPC() + GetSizeInBytes()) / CPU_CODE_CACHE_PAGE_SIZE); }
const u32 GetStartPageIndex() const { return (key.GetPCPhysicalAddress() / CPU_CODE_CACHE_PAGE_SIZE); }
const u32 GetEndPageIndex() const
{
return ((key.GetPCPhysicalAddress() + GetSizeInBytes()) / CPU_CODE_CACHE_PAGE_SIZE);
}
bool IsInRAM() const
{
// TODO: Constant
return key.GetPC() < 0x200000;
return key.GetPCPhysicalAddress() < 0x200000;
}
};