1 files changed, 30 insertions, 0 deletions
diff --git a/src/ARMeilleure/Decoders/OpCode32SimdLong.cs b/src/ARMeilleure/Decoders/OpCode32SimdLong.cs
new file mode 100644
index 00000000..8d64d673
--- /dev/null
+++ b/src/ARMeilleure/Decoders/OpCode32SimdLong.cs
@@ -0,0 +1,30 @@
+namespace ARMeilleure.Decoders
+{
+    class OpCode32SimdLong : OpCode32SimdBase
+    {
+        public bool U { get; }
+
+        public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdLong(inst, address, opCode, false);
+        public static OpCode CreateT32(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdLong(inst, address, opCode, true);
+
+        public OpCode32SimdLong(InstDescriptor inst, ulong address, int opCode, bool isThumb) : base(inst, address, opCode, isThumb)
+        {
+            int imm3h = (opCode >> 19) & 0x7;
+
+            // The value must be a power of 2, otherwise it is the encoding of another instruction.
+            switch (imm3h)
+            {
+                case 1: Size = 0; break;
+                case 2: Size = 1; break;
+                case 4: Size = 2; break;
+            }
+
+            U = ((opCode >> (isThumb ? 28 : 24)) & 0x1) != 0;
+
+            RegisterSize = RegisterSize.Simd64;
+
+            Vd = ((opCode >> 18) & 0x10) | ((opCode >> 12) & 0xf);
+            Vm = ((opCode >> 1) & 0x10) | ((opCode >> 0) & 0xf);
+        }
+    }
+}