Completed the first 8086 simulation homework

8086_sim/include/reg_access.h

@@ -4,6 +4,8 @@
 #include "aliases.h"
 #include "sim86_instruction.h"
 
+#define REGISTER_COUNT 13
+
 void set_register(register_access reg, u16 new_value);
 u16 get_register(register_access reg);
 const char *get_register_name(register_access reg);