mirror of
https://github.com/azahar-emu/dynarmic
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59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/* This file is part of the dynarmic project.
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* Copyright (c) 2018 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#include "common/bit_util.h"
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#include "frontend/A64/translate/impl/impl.h"
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namespace Dynarmic::A64 {
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bool TranslatorVisitor::DUP_gen(bool Q, Imm<5> imm5, Reg Rn, Vec Vd) {
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const size_t size = Common::LowestSetBit(imm5.ZeroExtend());
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if (size > 3) return UnallocatedEncoding();
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if (size == 3 && !Q) return ReservedValue();
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const size_t esize = 8 << size;
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const size_t datasize = Q ? 128 : 64;
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const IR::UAny element = X(esize, Rn);
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const IR::U128 result = [&]{
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switch (esize) {
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case 8:
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return Q ? ir.VectorBroadcast8(element) : ir.VectorLowerBroadcast8(element);
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case 16:
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return Q ? ir.VectorBroadcast16(element) : ir.VectorLowerBroadcast16(element);
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case 32:
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return Q ? ir.VectorBroadcast32(element) : ir.VectorLowerBroadcast32(element);
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default:
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return ir.VectorBroadcast64(element);
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}
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}();
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V(datasize, Vd, result);
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return true;
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}
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bool TranslatorVisitor::UMOV(bool Q, Imm<5> imm5, Vec Vn, Reg Rd) {
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const size_t size = Common::LowestSetBit(imm5.ZeroExtend());
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if (size < 3 && Q) return UnallocatedEncoding();
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if (size == 3 && !Q) return UnallocatedEncoding();
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if (size > 3) return UnallocatedEncoding();
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const size_t idxdsize = imm5.Bit<4>() ? 128 : 64;
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const size_t index = imm5.ZeroExtend<size_t>() >> (size + 1);
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const size_t esize = 8 << size;
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const size_t datasize = Q ? 64 : 32;
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const IR::U128 operand = V(idxdsize, Vn);
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const IR::UAny elem = ir.VectorGetElement(esize, operand, index);
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X(datasize, Rd, ZeroExtend(elem, datasize));
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return true;
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}
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} // namespace Dynarmic::A64
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