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thumb32: Implement SHSUB16/UHSUB16

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This commit is contained in:
Lioncash 2021-02-01 17:21:24 -05:00
parent 51b7c32d02
commit afad76078d
4 changed files with 34 additions and 2 deletions
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26
src/frontend/A32/translate/impl/thumb32_parallel.cpp
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@ -401,6 +401,19 @@ bool ThumbTranslatorVisitor::thumb32_SHSAX(Reg n, Reg d, Reg m) {
return true;
}
bool ThumbTranslatorVisitor::thumb32_SHSUB16(Reg n, Reg d, Reg m) {
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
return UnpredictableInstruction();
}
const auto reg_m = ir.GetRegister(m);
const auto reg_n = ir.GetRegister(n);
const auto result = ir.PackedHalvingSubS16(reg_n, reg_m);
ir.SetRegister(d, result);
return true;
}
bool ThumbTranslatorVisitor::thumb32_UHADD16(Reg n, Reg d, Reg m) {
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
return UnpredictableInstruction();
@ -440,4 +453,17 @@ bool ThumbTranslatorVisitor::thumb32_UHSAX(Reg n, Reg d, Reg m) {
return true;
}
bool ThumbTranslatorVisitor::thumb32_UHSUB16(Reg n, Reg d, Reg m) {
if (d == Reg::PC || n == Reg::PC || m == Reg::PC) {
return UnpredictableInstruction();
}
const auto reg_m = ir.GetRegister(m);
const auto reg_n = ir.GetRegister(n);
const auto result = ir.PackedHalvingSubU16(reg_n, reg_m);
ir.SetRegister(d, result);
return true;
}
} // namespace Dynarmic::A32