/vr/ - Retro Games

>>10262147
Title screen is just waiting for button input and will go somewhere depending on the button pressed. The state of the button is stored in a buffer so it doesn't act like a turbo button. Many other games use the exact same code.

>>10265183
in emuliscious and fceux what I do is go into the memory viewer, right click on the address I think might do something. Then I add break on write to memory and then once it gets there you will see exactly what code changes that memory. If its writing a number you can change that or just put in a nop which is 00 on z80 and EA on 6502 to see what happens. It seems hard at first but it gets easier pretty quickly. You shouldn't feel embaressed to ask questions because it can be pretty confusing and it is all for fun afterall.
The debugger you are using looks pretty difficult to use.

>>10263632
The credits for micro machines on genesis say something like thanks to the Nintendo original, seems like that Nintendo wouldn't allow something like that in their own game.