Programing trouble

[Programing trouble]

Driving controllers use the same registers as the joystick...SWCHA for the knob (reading bits 4&5 for the left port and bits 0&1 for the right), and INPT4 and INPT5 for each trigger - bit 7 on (negative) = not pressed.

 

IMO Zuma seems to be quite advanced for a beginner project (if this is your first). Good luck.

 

I'm Afraid that didn't help Here is my current code

 

gamescreen

playfield:

......XXXXXXXXXXXXX.......XX....

.....XX...........XX......XX....

....XX.XXXXXXXXXX..XX....XX.....

...XX.XX........XX..XX...XX.....

..XX..XX.XX.....XX..XX..XX......

..XX..XX.XX.....XX..XX..XX......

..XX..XX..XXXXXXX..XX..XX.......

...XX..XX.........XX..XXX.......

....XXX..XXXXXXXXXX..XXX........

.....XXXX..........XXXX.........

......XXXXXXXXXXXXXXXX..........

end

COLUBK=$0A

COLUPF=$06

drawscreen

if joy0fire then goto gamescreen

 

Hope this helps

[Programing trouble]

I am trying to program an engine test for a 2600 version of Zuma that uses the driving controllers, but I can't figure out how to program a playfield swicth at the press of a fire button.

[FB2 Rev C Cart Mod Visual Cheat Sheet]

So I picked up a Flashback 2 at a garage sale this past weekend for $5. One of the sticks was broken and the other stick was a genuine CX-40 from the day. Anyway, the thing is pretty dusty and there's evidence of corrosion on the cart pins so I think, "Hey, this would be a suitable candidate for a mod!". Sure, I have two FB2's at home that I've had since they sold them in stores, and while I had taken one apart I never had the heart to take the solder gun to it. Now's my chance!

 

So I take the little guy home, clean him up, and plug him in to make sure it works. Yep. Okay, now I get down to business. I have an IDE cable I could use but from the pics I've seen of other mods it looks very unwieldy. I have this spool of super thin single strand stuff that I wanted to try instead just to see if it'd work.

 

I hardwired the J3 connection (as opposed to putting a switch there) because I wanted to make sure I had all of the cart pins correct before getting too crazy. After getting everything in place, I plugged it in and voila! Space Jockey running on the FB2!

 

Anyway, I whipped up a visual cheat sheet (a VCS, if you will ) that shows what needs to hook up to what that may be helpful to anyone that wants to mod their Revision C FB2. I'm pretty sure this is a Revision C. If not, I'm sure someone will correct me. And if anyone wants to check my work I gladly welcome it. I didn't want to make a graphic such as this without doing the mod myself. And now that I finally have (after, what four or so years? ), well, here it is. But first, a pic of my mod in action. This was before I added the toggle to switch between built-in games and cart and before I desoldered everything to make the graphic. My next project for this is a bit more ambitious...

 

That is very good, btw this cheat sheet will work on the Atari flashback 2+.

[Atari Flashback 2 cartridge mod trouble]

I am trying Flashback 2 cartridge mod but i have a problem

The Cartridge pinouts are not labeled on the board unlike other Flashback 2 i've seen.

Here is a custom pinout i made and corresponding circut maps

1-

2-13

3-

4-18

5-

6-7

7-11

8-10

9-9

10-7

11-6

12-

13-

14-

15-4

16-

17-3

18-

19-2

20-

21-32

22-

23-

24-33

25-

26-

27-34

28-24

29-

30-23

31-5

32-

33-

34-22

35-21

36-14

37-20

38-35

39-19

40-16

 

And here's another piece probably useful info: Jp8(short = Game Cartridge) Jp3(open = Game Cartridge)

So if you can help me please do.