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Implement UXTAB16 (#78)

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This commit is contained in:
Fernando Sahmkow
2016-12-29 07:15:18 -05:00
committed by Merry
parent 0d1fa85402
commit 70f4235ee9
2 changed files with 11 additions and 3 deletions
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12
src/frontend/translate/translate_arm/extension.cpp
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@@ -96,8 +96,16 @@ bool ArmTranslatorVisitor::arm_UXTAB(Cond cond, Reg n, Reg d, SignExtendRotation
}
bool ArmTranslatorVisitor::arm_UXTAB16(Cond cond, Reg n, Reg d, SignExtendRotation rotate, Reg m) {
UNUSED(cond, n, d, rotate, m);
return InterpretThisInstruction();
if (d == Reg::PC || m == Reg::PC || n == Reg::PC)
return UnpredictableInstruction();
if (ConditionPassed(cond)) {
auto rotated = SignZeroExtendRor(m, rotate);
auto result = ir.And(rotated, ir.Imm32(0x00FF00FF));
auto reg_n = ir.GetRegister(n);
result = ir.PackedAddU16(reg_n, result).result;
ir.SetRegister(d, result);
}
return true;
}
bool ArmTranslatorVisitor::arm_UXTAH(Cond cond, Reg n, Reg d, SignExtendRotation rotate, Reg m) {