1 files changed, 23 insertions, 0 deletions
diff --git a/ARMeilleure/Decoders/OpCodeT16AddSubSp.cs b/ARMeilleure/Decoders/OpCodeT16AddSubSp.cs
new file mode 100644
index 00000000..b66fe0cd
--- /dev/null
+++ b/ARMeilleure/Decoders/OpCodeT16AddSubSp.cs
@@ -0,0 +1,23 @@
+using ARMeilleure.State;
+
+namespace ARMeilleure.Decoders
+{
+    class OpCodeT16AddSubSp : OpCodeT16, IOpCode32AluImm
+    {
+        public int Rd => RegisterAlias.Aarch32Sp;
+        public int Rn => RegisterAlias.Aarch32Sp;
+
+        public bool? SetFlags => false;
+
+        public int Immediate { get; }
+
+        public bool IsRotated => false;
+
+        public static new OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT16AddSubSp(inst, address, opCode);
+
+        public OpCodeT16AddSubSp(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
+        {
+            Immediate = ((opCode >> 0) & 0x7f) << 2;
+        }
+    }
+}