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A64: Implement UABAL/UABAL2

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This commit is contained in:
Lioncash
2018-05-12 14:56:24 -04:00
committed by MerryMage
parent 3397742c74
commit 26d4473851
2 changed files with 34 additions and 9 deletions
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41
src/frontend/A64/translate/impl/simd_three_different.cpp
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@@ -7,6 +7,29 @@
#include "frontend/A64/translate/impl/impl.h"
namespace Dynarmic::A64 {
namespace {
enum class AbsoluteDifferenceBehavior {
None,
Accumulate
};
void UnsignedAbsoluteDifferenceLong(TranslatorVisitor& v, bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd,
AbsoluteDifferenceBehavior behavior) {
const size_t esize = 8 << size.ZeroExtend();
const size_t datasize = 64;
const IR::U128 operand1 = v.ir.VectorZeroExtend(esize, v.Vpart(datasize, Vn, Q));
const IR::U128 operand2 = v.ir.VectorZeroExtend(esize, v.Vpart(datasize, Vm, Q));
IR::U128 result = v.ir.VectorUnsignedAbsoluteDifference(esize, operand1, operand2);
if (behavior == AbsoluteDifferenceBehavior::Accumulate) {
const IR::U128 data = v.V(2 * datasize, Vd);
result = v.ir.VectorAdd(2 * esize, result, data);
}
v.V(2 * datasize, Vd, result);
}
} // Anonymous namespace
bool TranslatorVisitor::SADDL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11) {
@@ -88,19 +111,21 @@ bool TranslatorVisitor::UADDL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::UABAL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11) {
return ReservedValue();
}
UnsignedAbsoluteDifferenceLong(*this, Q, size, Vm, Vn, Vd, AbsoluteDifferenceBehavior::Accumulate);
return true;
}
bool TranslatorVisitor::UABDL(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend();
const size_t datasize = 64;
const IR::U128 operand1 = ir.VectorZeroExtend(esize, Vpart(datasize, Vn, Q));
const IR::U128 operand2 = ir.VectorZeroExtend(esize, Vpart(datasize, Vm, Q));
const IR::U128 result = ir.VectorUnsignedAbsoluteDifference(esize, operand1, operand2);
V(2 * datasize, Vd, result);
UnsignedAbsoluteDifferenceLong(*this, Q, size, Vm, Vn, Vd, AbsoluteDifferenceBehavior::None);
return true;
}