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Implement thumb1_ADD_reg_t1 and thumb1_ADD_reg_t2

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This commit is contained in:
MerryMage 2016-07-08 17:09:18 +08:00
parent e93fb0ba2b
commit d0b48bfb59
9 changed files with 144 additions and 6 deletions
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34
src/frontend/ir_emitter.cpp
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@ -14,13 +14,29 @@ void IREmitter::Unimplemented() {
}
IR::ValuePtr IREmitter::Imm1(bool value) {
auto imm1 = std::make_shared<IR::ImmU1>(value);
AddToBlock(imm1);
return imm1;
}
IR::ValuePtr IREmitter::Imm8(u8 i) {
auto imm8 = std::make_shared<IR::ImmU8>(i);
AddToBlock(imm8);
return imm8;
}
IR::ValuePtr IREmitter::GetRegister(Dynarmic::Arm::Reg reg) {
IR::ValuePtr IREmitter::Imm32(u32 i) {
auto imm32 = std::make_shared<IR::ImmU32>(i);
AddToBlock(imm32);
return imm32;
}
IR::ValuePtr IREmitter::GetRegister(Reg reg) {
if (reg == Reg::PC) {
u32 offset = current_location.TFlag ? 4 : 8;
return Imm32(current_location.arm_pc + offset);
}
return Inst(IR::Opcode::GetRegister, { RegRef(reg) });
}
@ -28,6 +44,11 @@ void IREmitter::SetRegister(const Reg reg, IR::ValuePtr value) {
Inst(IR::Opcode::SetRegister, { RegRef(reg), value });
}
void IREmitter::ALUWritePC(IR::ValuePtr value) {
// This behaviour is ARM version-dependent.
ASSERT_MSG(false, "Unimplemented");
}
IR::ValuePtr IREmitter::GetCFlag() {
return Inst(IR::Opcode::GetCFlag, {});
}
@ -44,6 +65,10 @@ void IREmitter::SetCFlag(IR::ValuePtr value) {
Inst(IR::Opcode::SetCFlag, {value});
}
void IREmitter::SetVFlag(IR::ValuePtr value) {
Inst(IR::Opcode::SetVFlag, {value});
}
IR::ValuePtr IREmitter::LeastSignificantByte(IR::ValuePtr value) {
return Inst(IR::Opcode::LeastSignificantByte, {value});
}
@ -74,6 +99,13 @@ IREmitter::ResultAndCarry IREmitter::ArithmeticShiftRight(IR::ValuePtr value_in,
return {result, carry_out};
}
IREmitter::ResultAndCarryAndOverflow IREmitter::AddWithCarry(IR::ValuePtr a, IR::ValuePtr b, IR::ValuePtr carry_in) {
auto result = Inst(IR::Opcode::AddWithCarry, {a, b, carry_in});
auto carry_out = Inst(IR::Opcode::GetCarryFromOp, {result});
auto overflow = Inst(IR::Opcode::GetOverflowFromOp, {result});
return {result, carry_out, overflow};
}
void IREmitter::SetTerm(const IR::Terminal& terminal) {
ASSERT_MSG(block.terminal.which() == 0, "Terminal has already been set.");
block.terminal = terminal;