35 lines
1.1 KiB
C#
35 lines
1.1 KiB
C#
namespace ARMeilleure.Decoders
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{
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class OpCode32SimdS : OpCode32, IOpCode32Simd
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{
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public int Vd { get; protected set; }
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public int Vm { get; protected set; }
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public int Opc { get; protected set; } // "with_zero" (Opc<1>) [Vcmp, Vcmpe].
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public int Opc2 { get; private set; } // opc2 or RM (opc2<1:0>) [Vcvt, Vrint].
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public int Size { get; protected set; }
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public OpCode32SimdS(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
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{
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Opc = (opCode >> 15) & 0x3;
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Opc2 = (opCode >> 16) & 0x7;
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Size = (opCode >> 8) & 0x3;
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bool single = Size != 3;
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RegisterSize = single ? RegisterSize.Int32 : RegisterSize.Int64;
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if (single)
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{
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Vm = ((opCode >> 5) & 0x1) | ((opCode << 1) & 0x1e);
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Vd = ((opCode >> 22) & 0x1) | ((opCode >> 11) & 0x1e);
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}
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else
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{
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Vm = ((opCode >> 1) & 0x10) | ((opCode >> 0) & 0xf);
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Vd = ((opCode >> 18) & 0x10) | ((opCode >> 12) & 0xf);
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}
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}
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}
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}
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