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make literal optimisation more reliable

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fixes spanish Pokemon HeartGold
This commit is contained in:
RSDuck
2019-11-03 15:33:20 +01:00
parent 803c61e126
commit 386100c053
4 changed files with 77 additions and 14 deletions
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52
src/ARMJIT.cpp
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@ -161,6 +161,27 @@ void FloodFillSetFlags(FetchedInstr instrs[], int start, u8 flags)
}
}
bool DecodeLiteral(const FetchedInstr& instr, u32& addr)
{
switch (instr.Info.Kind)
{
case ARMInstrInfo::ak_STR_IMM:
case ARMInstrInfo::ak_STRB_IMM:
addr = (instr.Addr + 8) + ((instr.Instr & 0xFFF) * (instr.Instr & (1 << 23) ? 1 : -1));
return true;
case ARMInstrInfo::ak_STRD_IMM:
case ARMInstrInfo::ak_STRH_IMM:
addr = (instr.Addr + 8) + (((instr.Instr & 0xF00) >> 4 | (instr.Instr & 0xF)) * (instr.Instr & (1 << 23) ? 1 : -1));
return true;
case ARMInstrInfo::ak_STM: // I honestly hope noone was ever crazy enough to do stm pc, {whatever}
addr = instr.Addr + 8;
return true;
default:
JIT_DEBUGPRINT("Literal %08x %x not recognised\n", instr.Instr, instr.Addr);
return false;
}
}
bool DecodeBranch(bool thumb, const FetchedInstr& instr, u32& cond, bool hasLink, u32 lr, bool& link,
u32& linkAddr, u32& targetAddr)
{
@ -463,6 +484,23 @@ void CompileBlock(ARM* cpu)
instrs[i].DataCycles = cpu->DataCycles;
instrs[i].DataRegion = cpu->DataRegion;
if (instrs[i].Info.SpecialKind == ARMInstrInfo::special_WriteMem
&& instrs[i].Info.SrcRegs == (1 << 15)
&& instrs[i].Info.DstRegs == 0)
{
assert (!thumb);
u32 addr;
if (DecodeLiteral(instrs[i], addr))
{
JIT_DEBUGPRINT("pc relative write detected\n");
u32 translatedAddr = cpu->Num == 0 ? TranslateAddr<0>(addr) : TranslateAddr<1>(addr);
ARMJIT::InvalidateByAddr(translatedAddr, false);
CodeRanges[translatedAddr / 512].InvalidLiterals |= (1 << ((translatedAddr & 0x1FF) / 16));
}
}
if (thumb && instrs[i].Info.Kind == ARMInstrInfo::tk_BL_LONG_2 && i > 0
&& instrs[i - 1].Info.Kind == ARMInstrInfo::tk_BL_LONG_1)
{
@ -631,7 +669,7 @@ void CompileBlock(ARM* cpu)
JitBlocks.Add(block);
}
void InvalidateByAddr(u32 pseudoPhysical)
void InvalidateByAddr(u32 pseudoPhysical, bool mayRestore)
{
JIT_DEBUGPRINT("invalidating by addr %x\n", pseudoPhysical);
AddressRange* range = &CodeRanges[pseudoPhysical / 512];
@ -657,11 +695,14 @@ void InvalidateByAddr(u32 pseudoPhysical)
FastBlockAccess[block->PseudoPhysicalAddr / 2] = NULL;
u32 slot = HashRestoreCandidate(block->PseudoPhysicalAddr);
if (RestoreCandidates[slot] && RestoreCandidates[slot] != block)
delete RestoreCandidates[slot];
if (mayRestore)
{
u32 slot = HashRestoreCandidate(block->PseudoPhysicalAddr);
if (RestoreCandidates[slot] && RestoreCandidates[slot] != block)
delete RestoreCandidates[slot];
RestoreCandidates[slot] = block;
RestoreCandidates[slot] = block;
}
}
if ((range->TimesInvalidated + 1) > range->TimesInvalidated)
range->TimesInvalidated++;
@ -732,6 +773,7 @@ void ResetBlockCache()
u32 addr = block->AddressRanges()[j];
CodeRanges[addr / 512].Blocks.Clear();
CodeRanges[addr / 512].TimesInvalidated = 0;
CodeRanges[addr / 512].InvalidLiterals = 0;
}
delete block;
}