1 files changed, 36 insertions, 0 deletions
diff --git a/src/ARMeilleure/Decoders/OpCode32SimdDupGP.cs b/src/ARMeilleure/Decoders/OpCode32SimdDupGP.cs
new file mode 100644
index 00000000..31546ea3
--- /dev/null
+++ b/src/ARMeilleure/Decoders/OpCode32SimdDupGP.cs
@@ -0,0 +1,36 @@
+namespace ARMeilleure.Decoders
+{
+    class OpCode32SimdDupGP : OpCode32, IOpCode32Simd
+    {
+        public int Size { get; }
+        public int Vd { get; }
+        public int Rt { get; }
+        public bool Q { get; }
+
+        public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdDupGP(inst, address, opCode, false);
+        public static OpCode CreateT32(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdDupGP(inst, address, opCode, true);
+
+        public OpCode32SimdDupGP(InstDescriptor inst, ulong address, int opCode, bool isThumb) : base(inst, address, opCode)
+        {
+            IsThumb = isThumb;
+
+            Size = 2 - (((opCode >> 21) & 0x2) | ((opCode >> 5) & 0x1)); // B:E - 0 for 32, 16 then 8.
+            if (Size == -1)
+            {
+                Instruction = InstDescriptor.Undefined;
+                return;
+            }
+            Q = ((opCode >> 21) & 0x1) != 0;
+
+            RegisterSize = Q ? RegisterSize.Simd128 : RegisterSize.Simd64;
+
+            Vd = ((opCode >> 3) & 0x10) | ((opCode >> 16) & 0xf);
+            Rt = ((opCode >> 12) & 0xf);
+
+            if (DecoderHelper.VectorArgumentsInvalid(Q, Vd))
+            {
+                Instruction = InstDescriptor.Undefined;
+            }
+        }
+    }
+}