1 files changed, 24 insertions, 0 deletions
diff --git a/ARMeilleure/Decoders/OpCode32AluBf.cs b/ARMeilleure/Decoders/OpCode32AluBf.cs
new file mode 100644
index 00000000..7ee0ee34
--- /dev/null
+++ b/ARMeilleure/Decoders/OpCode32AluBf.cs
@@ -0,0 +1,24 @@
+namespace ARMeilleure.Decoders
+{
+    class OpCode32AluBf : OpCode32, IOpCode32AluBf
+    {
+        public int Rd { get; private set; }
+        public int Rn { get; private set; }
+
+        public int Msb { get; private set; }
+
+        public int Lsb { get; private set; }
+
+        public int SourceMask => (int)(0xFFFFFFFF >> (31 - Msb));
+        public int DestMask => SourceMask & (int)(0xFFFFFFFF << Lsb);
+
+        public OpCode32AluBf(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
+        {
+            Rd = (opCode >> 12) & 0xf;
+            Rn = (opCode >> 0) & 0xf;
+
+            Msb = (opCode >> 16) & 0x1f;
+            Lsb = (opCode >> 7) & 0x1f;
+        }
+    }
+}