diff --git a/src/py65/devices/mpu65c02.py b/src/py65/devices/mpu65c02.py
index 352078c..59781ae 100644
--- a/src/py65/devices/mpu65c02.py
+++ b/src/py65/devices/mpu65c02.py
@@ -267,6 +267,11 @@ class MPU(mpu6502.MPU):
     def inst_0xCB(self):
         self.waiting = True
 
+    @instruction(name="CMP", mode='zpi', cycles=6) # Don't know cycles
+    def inst_0xD2(self):
+        self.opCPY(self.ZeroPageIndirectAddr)
+        self.pc += 1
+
     @instruction(name="SBC", mode="zpi", cycles=5)
     def inst_0xf2(self):
         self.opSBC(self.ZeroPageIndirectAddr)