dynarmic/src/frontend/A64/translate/impl/simd_permute.cpp
2020-04-22 20:46:15 +01:00

51 lines
1.5 KiB
C++

/* This file is part of the dynarmic project.
* Copyright (c) 2018 MerryMage
* This software may be used and distributed according to the terms of the GNU
* General Public License version 2 or any later version.
*/
#include "frontend/A64/translate/impl/impl.h"
namespace Dynarmic::A64 {
bool TranslatorVisitor::ZIP1(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11 && !Q) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend<size_t>();
const size_t datasize = Q ? 128 : 64;
const IR::U128 operand1 = V(datasize, Vn);
const IR::U128 operand2 = V(datasize, Vm);
const IR::U128 result = ir.VectorInterleaveLower(esize, operand1, operand2);
V(datasize, Vd, result);
return true;
}
bool TranslatorVisitor::ZIP2(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
if (size == 0b11 && !Q) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend<size_t>();
const size_t datasize = Q ? 128 : 64;
const IR::U128 operand1 = V(datasize, Vn);
const IR::U128 operand2 = V(datasize, Vm);
const IR::U128 result = [&]{
if (Q) {
return ir.VectorInterleaveUpper(esize, operand1, operand2);
}
// TODO: Urgh.
const IR::U128 interleaved = ir.VectorInterleaveLower(esize, operand1, operand2);
return ir.VectorZeroUpper(ir.VectorShuffleWords(interleaved, 0b01001110));
}();
V(datasize, Vd, result);
return true;
}
} // namespace Dynarmic::A64