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32 lines
1.3 KiB
C#
32 lines
1.3 KiB
C#
namespace ARMeilleure.Decoders
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{
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class OpCode32SimdRegElem : OpCode32SimdReg
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{
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public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdRegElem(inst, address, opCode, false);
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public new static OpCode CreateT32(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdRegElem(inst, address, opCode, true);
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public OpCode32SimdRegElem(InstDescriptor inst, ulong address, int opCode, bool isThumb) : base(inst, address, opCode, isThumb)
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{
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Q = ((opCode >> (isThumb ? 28 : 24)) & 0x1) != 0;
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F = ((opCode >> 8) & 0x1) != 0;
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Size = (opCode >> 20) & 0x3;
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RegisterSize = Q ? RegisterSize.Simd128 : RegisterSize.Simd64;
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if (Size == 1)
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{
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Vm = ((opCode >> 3) & 0x1) | ((opCode >> 4) & 0x2) | ((opCode << 2) & 0x1c);
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}
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else /* if (Size == 2) */
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{
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Vm = ((opCode >> 5) & 0x1) | ((opCode << 1) & 0x1e);
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}
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if (GetType() == typeof(OpCode32SimdRegElem) && DecoderHelper.VectorArgumentsInvalid(Q, Vd, Vn) || Size == 0 || (Size == 1 && F))
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{
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Instruction = InstDescriptor.Undefined;
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}
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}
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}
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}
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