diff --git a/cpu/decoder.cpp b/cpu/decoder.cpp
index 5767112..b47702b 100644
--- a/cpu/decoder.cpp
+++ b/cpu/decoder.cpp
@@ -459,6 +459,10 @@ void Cpu::executeInstruction()
         case 0x76: // HALT
           halted = true;
           break;
+        case 0x10: // STOP n8
+          (void)readPC8();
+          stopped = true;
+          break;
 
         case 0xE8: // ADD SP, e8
           {