1 files changed, 40 insertions, 0 deletions
diff --git a/ARMeilleure/Decoders/OpCode32SimdDupElem.cs b/ARMeilleure/Decoders/OpCode32SimdDupElem.cs
new file mode 100644
index 00000000..fd83aee5
--- /dev/null
+++ b/ARMeilleure/Decoders/OpCode32SimdDupElem.cs
@@ -0,0 +1,40 @@
+namespace ARMeilleure.Decoders
+{
+    class OpCode32SimdDupElem : OpCode32Simd
+    {
+        public int Index { get; private set; }
+
+        public OpCode32SimdDupElem(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
+        {
+            var opc = (opCode >> 16) & 0xf;
+
+            if ((opc & 0b1) == 1)
+            {
+                Size = 0;
+                Index = (opc >> 1) & 0x7;
+            }
+            else if ((opc & 0b11) == 0b10)
+            {
+                Size = 1;
+                Index = (opc >> 2) & 0x3;
+            }
+            else if ((opc & 0b111) == 0b100)
+            {
+                Size = 2;
+                Index = (opc >> 3) & 0x1;
+            }
+            else
+            {
+                Instruction = InstDescriptor.Undefined;
+            }
+
+            Vd = ((opCode >> 18) & 0x10) | ((opCode >> 12) & 0xf);
+            Vm = ((opCode >> 1) & 0x10) | ((opCode >> 0) & 0xf);
+
+            if (DecoderHelper.VectorArgumentsInvalid(Q, Vd))
+            {
+                Instruction = InstDescriptor.Undefined;
+            }
+        }
+    }
+}