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Implement data processing instructions

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ADC, ADD, AND, BIC, CMN, CMP, EOR, MOV, MVN, ORR, RSB, RSC, SBC, SUB,
TEQ, TST

The code could use some serious deduplication...
This commit is contained in:
Tillmann Karras
2016-08-03 00:44:35 +01:00
parent fe71cc9d78
commit 30a90295b9
4 changed files with 870 additions and 92 deletions
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45
src/frontend/translate/translate_arm.cpp
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@@ -93,5 +93,50 @@ bool ArmTranslatorVisitor::LinkToNextInstruction() {
return false;
}
IREmitter::ResultAndCarry ArmTranslatorVisitor::EmitImmShift(IR::Value value, ShiftType type, Imm5 imm5, IR::Value carry_in) {
IREmitter::ResultAndCarry result_and_carry;
switch (type)
{
case ShiftType::LSL:
result_and_carry = ir.LogicalShiftLeft(value, ir.Imm8(imm5), carry_in);
break;
case ShiftType::LSR:
imm5 = imm5 ? imm5 : 32;
result_and_carry = ir.LogicalShiftRight(value, ir.Imm8(imm5), carry_in);
break;
case ShiftType::ASR:
imm5 = imm5 ? imm5 : 32;
result_and_carry = ir.ArithmeticShiftRight(value, ir.Imm8(imm5), carry_in);
break;
case ShiftType::ROR:
if (imm5)
result_and_carry = ir.RotateRight(value, ir.Imm8(imm5), carry_in);
else
result_and_carry = ir.RotateRightExtended(value, carry_in);
break;
}
return result_and_carry;
}
IREmitter::ResultAndCarry ArmTranslatorVisitor::EmitRegShift(IR::Value value, ShiftType type, IR::Value amount, IR::Value carry_in) {
IREmitter::ResultAndCarry result_and_carry;
switch (type)
{
case ShiftType::LSL:
result_and_carry = ir.LogicalShiftLeft(value, amount, carry_in);
break;
case ShiftType::LSR:
result_and_carry = ir.LogicalShiftRight(value, amount, carry_in);
break;
case ShiftType::ASR:
result_and_carry = ir.ArithmeticShiftRight(value, amount, carry_in);
break;
case ShiftType::ROR:
result_and_carry = ir.RotateRight(value, amount, carry_in);
break;
}
return result_and_carry;
}
} // namespace Arm
} // namespace Dynarmic