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gdkchan 2018-02-04 20:08:20 -03:00
commit b7e1d9930d
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Ryujinx/Cpu/Decoder/AOpCodeSimdIns.cs Normal file
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using ChocolArm64.Instruction;
namespace ChocolArm64.Decoder
{
class AOpCodeSimdIns : AOpCodeSimd
{
public int SrcIndex { get; private set; }
public int DstIndex { get; private set; }
public AOpCodeSimdIns(AInst Inst, long Position, int OpCode) : base(Inst, Position, OpCode)
{
int Imm4 = (OpCode >> 11) & 0xf;
int Imm5 = (OpCode >> 16) & 0x1f;
if (Imm5 == 0b10000)
{
Emitter = AInstEmit.Und;
return;
}
Size = Imm5 & -Imm5;
switch (Size)
{
case 1: Size = 0; break;
case 2: Size = 1; break;
case 4: Size = 2; break;
case 8: Size = 3; break;
}
SrcIndex = Imm4 >> Size;
DstIndex = Imm5 >> (Size + 1);
}
}
}