1 files changed, 51 insertions, 0 deletions
diff --git a/src/ARMeilleure/Decoders/OpCode32SimdMemSingle.cs b/src/ARMeilleure/Decoders/OpCode32SimdMemSingle.cs
new file mode 100644
index 00000000..35dd41c2
--- /dev/null
+++ b/src/ARMeilleure/Decoders/OpCode32SimdMemSingle.cs
@@ -0,0 +1,51 @@
+using ARMeilleure.State;
+
+namespace ARMeilleure.Decoders
+{
+    class OpCode32SimdMemSingle : OpCode32, IOpCode32Simd
+    {
+        public int Vd { get; }
+        public int Rn { get; }
+        public int Rm { get; }
+        public int IndexAlign { get; }
+        public int Index { get; }
+        public bool WBack { get; }
+        public bool RegisterIndex { get; }
+        public int Size { get; }
+        public bool Replicate { get; }
+        public int Increment { get; }
+
+        public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdMemSingle(inst, address, opCode, false);
+        public static OpCode CreateT32(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdMemSingle(inst, address, opCode, true);
+
+        public OpCode32SimdMemSingle(InstDescriptor inst, ulong address, int opCode, bool isThumb) : base(inst, address, opCode)
+        {
+            IsThumb = isThumb;
+
+            Vd = (opCode >> 12) & 0xf;
+            Vd |= (opCode >> 18) & 0x10;
+
+            IndexAlign = (opCode >> 4) & 0xf;
+
+            Size = (opCode >> 10) & 0x3;
+            Replicate = Size == 3;
+            if (Replicate)
+            {
+                Size = (opCode >> 6) & 0x3;
+                Increment = ((opCode >> 5) & 1) + 1;
+                Index = 0;
+            }
+            else
+            {
+                Increment = (((IndexAlign >> Size) & 1) == 0) ? 1 : 2;
+                Index = IndexAlign >> (1 + Size);
+            }
+
+            Rm = (opCode >> 0) & 0xf;
+            Rn = (opCode >> 16) & 0xf;
+
+            WBack = Rm != RegisterAlias.Aarch32Pc;
+            RegisterIndex = Rm != RegisterAlias.Aarch32Pc && Rm != RegisterAlias.Aarch32Sp;
+        }
+    }
+}