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CPU/Recompiler: Fix ICache updates on ARM32

This commit is contained in:
Stenzek 2024-12-14 01:05:32 +10:00
parent 5687dd22bd
commit e683c89770
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1 changed files with 12 additions and 4 deletions
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16
src/core/cpu_recompiler_arm32.cpp
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@ -178,8 +178,8 @@ void armEmitFarLoad(vixl::aarch32::Assembler* armAsm, const vixl::aarch32::Regis
armAsm->ldr(reg, vixl::aarch32::MemOperand(reg));
}
void armEmitFarStore(vixl::aarch32::Assembler* armAsm, const vixl::aarch32::Register& reg, const void* addr,
const vixl::aarch32::Register& tempreg)
[[maybe_unused]] void armEmitFarStore(vixl::aarch32::Assembler* armAsm, const vixl::aarch32::Register& reg,
const void* addr, const vixl::aarch32::Register& tempreg)
{
armMoveAddressToReg(armAsm, tempreg, addr);
armAsm->str(reg, vixl::aarch32::MemOperand(tempreg));
@ -634,12 +634,20 @@ void CPU::ARM32Recompiler::GenerateICacheCheckAndUpdate()
const u32 line = GetICacheLine(current_pc);
const u32 offset = OFFSETOF(State, icache_tags) + (line * sizeof(u32));
// Offsets must be <4K on ARM.
MemOperand line_addr = MemOperand(RSTATE, offset);
if (offset >= 4096)
{
armEmitMov(armAsm, RSCRATCH, offset);
line_addr = MemOperand(RSTATE, RSCRATCH);
}
Label cache_hit;
armAsm->ldr(existing_tag_reg, MemOperand(RSTATE, offset));
armAsm->ldr(existing_tag_reg, line_addr);
armAsm->cmp(existing_tag_reg, current_tag_reg);
armAsm->b(eq, &cache_hit);
armAsm->str(current_tag_reg, MemOperand(RSTATE, offset));
armAsm->str(current_tag_reg, line_addr);
armAsm->add(ticks_reg, ticks_reg, armCheckAddSubConstant(static_cast<u32>(fill_ticks)));
armAsm->bind(&cache_hit);