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[JIT]: Implement LHU

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SimoneN64
2025-01-23 23:39:53 +01:00
parent ee75eb10cf
commit a1a19e72cd
1 changed files with 34 additions and 2 deletions
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36
src/backend/core/jit/instructions.cpp
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@@ -916,7 +916,7 @@ void JIT::lb(u32 instr) {
if (u32 paddr = 0; !regs.cop0.MapVAddr(Cop0::LOAD, address, paddr)) {
// regs.cop0.HandleTLBException(address);
// regs.cop0.FireException(Cop0::GetTLBExceptionCode(regs.cop0.tlbError, Cop0::LOAD), 0, regs.oldPC);
Util::panic("[JIT]: Unhandled TLBL exception in LB!");
Util::panic("[JIT]: Unhandled TLBL exception in LB (pc: 0x{:016X})!", blockPC);
} else {
code.mov(code.ARG2,
code.ptr[code.rbp + (reinterpret_cast<uintptr_t>(&regs) - reinterpret_cast<uintptr_t>(this))]);
@@ -1045,7 +1045,39 @@ void JIT::lh(u32 instr) {
Util::panic("[JIT]: Implement non constant LH!");
}
void JIT::lhu(u32) { Util::panic("[JIT]: Implement LHU!"); }
void JIT::lhu(u32 instr) {
u32 paddr;
if (regs.IsRegConstant(RS(instr))) {
const s64 address = regs.Read<s64>(RS(instr)) + (s16)instr;
if (check_address_error(0b1, address)) {
regs.cop0.HandleTLBException(address);
regs.cop0.FireException(ExceptionCode::AddressErrorLoad, 0, regs.oldPC);
return;
}
if (!regs.cop0.MapVAddr(Cop0::LOAD, address, paddr)) {
regs.cop0.HandleTLBException(address);
regs.cop0.FireException(Cop0::GetTLBExceptionCode(regs.cop0.tlbError, Cop0::LOAD), 0, regs.oldPC);
return;
}
code.mov(code.ARG2, code.ptr[code.rbp + (reinterpret_cast<uintptr_t>(&regs) - reinterpret_cast<uintptr_t>(this))]);
code.mov(code.ARG3, paddr);
emitMemberFunctionCall(&Mem::Read<u16>, &mem);
regs.Write<u16>(RT(instr), code.rax);
}
code.mov(code.ARG2, Cop0::LOAD);
regs.Read<s64>(RS(instr), code.ARG3);
code.add(code.ARG3, s16(instr));
code.mov(code.ARG4, reinterpret_cast<uintptr_t>(&paddr));
emitMemberFunctionCall(&Cop0::MapVAddr, &regs.cop0);
code.mov(code.ARG2, code.ptr[code.rbp + (reinterpret_cast<uintptr_t>(&regs) - reinterpret_cast<uintptr_t>(this))]);
code.mov(code.ARG3, paddr);
emitMemberFunctionCall(&Mem::Read<u16>, &mem);
regs.Write<u16>(RT(instr), code.rax);
}
void JIT::ll(u32) { Util::panic("[JIT]: Implement constant LL!"); }