1 files changed, 36 insertions, 0 deletions
diff --git a/src/ARMeilleure/Decoders/OpCodeSimdIns.cs b/src/ARMeilleure/Decoders/OpCodeSimdIns.cs
new file mode 100644
index 00000000..f6f9249d
--- /dev/null
+++ b/src/ARMeilleure/Decoders/OpCodeSimdIns.cs
@@ -0,0 +1,36 @@
+namespace ARMeilleure.Decoders
+{
+    class OpCodeSimdIns : OpCodeSimd
+    {
+        public int SrcIndex { get; }
+        public int DstIndex { get; }
+
+        public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeSimdIns(inst, address, opCode);
+
+        public OpCodeSimdIns(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
+        {
+            int imm4 = (opCode >> 11) & 0xf;
+            int imm5 = (opCode >> 16) & 0x1f;
+
+            if (imm5 == 0b10000)
+            {
+                Instruction = InstDescriptor.Undefined;
+
+                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);
+        }
+    }
+}
+\ No newline at end of file