1 files changed, 7 insertions, 6 deletions
diff --git a/eater_cpu/cpp/disas.h b/eater_cpu/cpp/disas.h
index 9685e15..3fd4670 100644
--- a/eater_cpu/cpp/disas.h
+++ b/eater_cpu/cpp/disas.h
@@ -5,21 +5,22 @@
 #include <string>
 
 static std::string disas(uint8_t ins) {
+  const uint8_t arg = ins & 0x0f;
   switch (ins >> 4) {
   case 0:
     return "nop";
   case 1:
-    return std::format("lda {}", ins & 0x0f);
+    return std::format("lda {}", arg);
   case 2:
-    return std::format("add {}", ins & 0x0f);
+    return std::format("add {}", arg);
   case 3:
-    return std::format("sub {}", ins & 0x0f);
+    return std::format("sub {}", arg);
   case 4:
-    return std::format("sta {}", ins & 0x0f);
+    return std::format("sta {}", arg);
   case 5:
-    return std::format("ldi {}", ins & 0x0f);
+    return std::format("ldi {}", arg);
   case 6:
-    return std::format("jmp");
+    return std::format("jmp {}", arg);
   case 14:
     return std::format("out");
   case 15: