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A64: Implement DUP (element), vector variant

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This commit is contained in:
MerryMage
2018-02-11 14:34:13 +00:00
parent ce7628b6b5
commit 3738043e58
3 changed files with 19 additions and 2 deletions
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17
src/frontend/A64/translate/impl/simd_copy.cpp
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@@ -9,6 +9,23 @@
namespace Dynarmic::A64 {
bool TranslatorVisitor::DUP_elt_2(bool Q, Imm<5> imm5, Vec Vn, Vec Vd) {
const size_t size = Common::LowestSetBit(imm5.ZeroExtend());
if (size > 3) return UnallocatedEncoding();
if (size == 3 && !Q) return ReservedValue();
const size_t index = imm5.ZeroExtend<size_t>() >> (size + 1);
const size_t idxdsize = imm5.Bit<4>() ? 128 : 64;
const size_t esize = 8 << size;
const size_t datasize = Q ? 128 : 64;
const IR::U128 operand = V(idxdsize, Vn);
const IR::UAny element = ir.VectorGetElement(esize, operand, index);
const IR::U128 result = Q ? ir.VectorBroadcast(esize, element) : ir.VectorBroadcastLower(esize, element);
V(datasize, Vd, result);
return true;
}
bool TranslatorVisitor::DUP_gen(bool Q, Imm<5> imm5, Reg Rn, Vec Vd) {
const size_t size = Common::LowestSetBit(imm5.ZeroExtend());
if (size > 3) return UnallocatedEncoding();