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[JIT]: Implement non-constant dadd, daddu, daddi and daddiu

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This commit is contained in:
Simone
2025-01-22 15:02:59 +01:00
committed by GitHub
parent 9c78d71a29
commit 8c70a17c72
1 changed files with 32 additions and 19 deletions
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51
src/backend/core/jit/instructions.cpp
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@@ -544,24 +544,39 @@ void JIT::dadd(u32 instr) {
Util::panic("[JIT]: Unhandled Overflow exception in DADD!");
}
regs.Write(RD(instr), result);
} else {
Util::panic("[JIT]: Implement non constant DADD!");
return;
}
if(regs.IsRegConstant(RS(instr))) {
auto rs = regs.Read<u64>(RS(instr));
regs.Read<u64>(RT(instr), code.rax);
code.add(code.rax, rs);
regs.Write<u64>(RD(instr), code.rax);
return;
}
if(regs.IsRegConstant(RT(instr))) {
auto rt = regs.Read<u64>(RT(instr));
regs.Read<u64>(RS(instr), code.rax);
code.add(code.rax, rt);
regs.Write<u64>(RD(instr), code.rax);
return;
}
regs.Read<u64>(RS(instr), code.rax);
regs.Read<u64>(RT(instr), code.rdi);
code.add(code.rax, code.rdi);
regs.Write<u64>(RD(instr), code.rax);
}
void JIT::daddu(u32 instr) {
if (regs.IsRegConstant(RS(instr), RT(instr))) {
auto rs = regs.Read<s64>(RS(instr));
auto rt = regs.Read<s64>(RT(instr));
regs.Write(RD(instr), rt + rs);
} else {
Util::panic("[JIT]: Implement non constant DADD!");
}
// TODO: IMPLEMENT DADDU BY ITSELF ACTUALLY
dadd(instr);
}
void JIT::daddi(u32 instr) {
u64 imm = s64(s16(instr));
if (regs.IsRegConstant(RS(instr))) {
u64 imm = s64(s16(instr));
auto rs = regs.Read<u64>(RS(instr));
u64 result = imm + rs;
if (check_signed_overflow(rs, imm, result)) {
@@ -569,19 +584,17 @@ void JIT::daddi(u32 instr) {
Util::panic("[JIT]: Unhandled Overflow exception in DADDI!");
}
regs.Write(RT(instr), result);
} else {
Util::panic("[JIT]: Implement non constant DADDI!");
return;
}
regs.Read<u64>(RS(instr), code.rax);
code.add(code.rax, imm);
regs.Write(RT(instr), code.rax);
}
void JIT::daddiu(u32 instr) {
if (regs.IsRegConstant(RS(instr))) {
s16 imm = s16(instr);
auto rs = regs.Read<s64>(RS(instr));
regs.Write(RT(instr), imm + rs);
} else {
Util::panic("[JIT]: Implement non constant DADDI!");
}
// TODO: IMPLEMENT DADDIU BY ITSELF ACTUALLY
daddi(instr);
}
void JIT::ddiv(u32 instr) {