diff --git a/src/mos6502.c b/src/mos6502.c
index 3a05b41..1c0c9e7 100644
--- a/src/mos6502.c
+++ b/src/mos6502.c
@@ -14,6 +14,7 @@
 #include "log.h"
 #include "mos6502.h"
 #include "mos6502.dis.h"
+#include "vm_debug.h"
 
 // All of our address modes, instructions, etc. are defined here.
 #include "mos6502.enums.h"
@@ -363,6 +364,10 @@ mos6502_execute(mos6502 *cpu)
     mos6502_address_resolver resolver;
     mos6502_instruction_handler handler;
 
+    if (vm_debug_broke(cpu->PC)) {
+        return;
+    }
+
     opcode = mos6502_get(cpu, cpu->PC);
 
     // The disassembler knows how many bytes each operand requires