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A64: Implement SQDMULL (vector), vector variant

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MerryMage
2018-09-15 13:38:37 +01:00
parent 3e447614c6
commit a9ffcf08b1
3 changed files with 22 additions and 6 deletions
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16
src/frontend/A64/translate/impl/simd_three_different.cpp
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@@ -249,4 +249,20 @@ bool TranslatorVisitor::USUBL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
return LongOperation(*this, Q, size, Vm, Vn, Vd, LongOperationBehavior::Subtraction, Signedness::Unsigned);
}
bool TranslatorVisitor::SQDMULL_vec_2(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b00 || size == 0b11) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend();
const size_t part = Q ? 1 : 0;
const IR::U128 operand1 = Vpart(64, Vn, part);
const IR::U128 operand2 = Vpart(64, Vm, part);
const IR::U128 result = ir.VectorSignedSaturatedDoublingMultiplyLong(esize, operand1, operand2);
V(128, Vd, result);
return true;
}
} // namespace Dynarmic::A64