Mame TAB menu and the NOT command.....

[LeedsFan]

I wonder if anyone can help me with a problem I have with my Robotron project. I built a little bartop some time ago (build thread is linked in my sig) and the control panel is basically the same as the original machine. Two joysticks and two buttons for P1 and P2 start. On my machine I'm using U360s with the two buttons wired into one of the sticks. So no IPac or Minipac etc.

I don't want a credit button on the machine anywhere so I figured I could input credits by pushing UP on one of the sticks while pressing P1 button. That's fine but as you enter the second credit you start a game because you're pressing P1 start.  I read up on the TAB button command and I understand that by pressing one key then pressing a second key twice quickly this implements the NOT command.

So you get Player 1 Start:   Button X NOT Button Y

But I can't get this to work with the joysticks. I'm trying to press P1 start then move the joystick up twice very quickly to get the stick movement to be NOT... but it just registers it as P1 AND Joystick Up.   

Is there any other way to implement this NOT command for P1 Start? Any .ini or config files I can manually input this without using the automated TAB menu?

[chopperthedog]

Set it to free play. http://www.robotron-2084.co.uk/manuals/robotron/robotron_upright_instruction_manual_may_82.pdf see page 4.


good day.

[LeedsFan]

You know what? I never actually thought of that.... dunno why but I didn't.   

But it's a good job you linked that guide because I wouldn't have know how to do it anyway as there are no DIP switch settings as such within Mame.
I've set my Defender to free play also and just need to set Star Wars the same. I'll leave DK as it has a credit button on the panel which is self explanatory.

Thanks again.   

[chopperthedog]

Nice! I'm not good with long PL1 type posts that explain it all (I just leave crumbs). I knew you would need the actual manual to figure out the service buttons and menu edit though. Glad you got the rest figured out.



good day.