Paul Westphal Posted May 20, 2016 Share Posted May 20, 2016 (edited) OK. I have this 7800 chip reader, and on the pokey it says 7800 tester 87. I used my Atarimax maxflash programmer + 7800 dumping adaptor, and created 5 " 64k super game " .BIN files. Can someone look into them and tell me what they might be? They do not execute on a real 7800, but in the code, there might be some text giving a clue to what they are. I realize the chips might be bad or the reader is the wrong kind. Two of them tried to execute, but were garbled. BOB D., Do you want to take a look? Let me know what you find. Thanks! 78Proto#1.bin 78Proto#2.bin 78Proto#3.bin 78Proto#4.bin 78Proto#5.bin 78Proto#2.bin Edited May 20, 2016 by Paul Westphal Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 20, 2016 Author Share Posted May 20, 2016 Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted May 20, 2016 Share Posted May 20, 2016 1, 2, 4 and 5 are blank EPROM's ($FF). Not sure what #3 contains yet. Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 20, 2016 Author Share Posted May 20, 2016 Well, it was worth a shot. I take chances...most of the time it works out, others, not so much. Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 20, 2016 Author Share Posted May 20, 2016 #3 does not have a window. Quote Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted May 21, 2016 Share Posted May 21, 2016 1, 2, 4 and 5 are blank EPROM's ($FF). Not sure what #3 contains yet. Quote Link to comment Share on other sites More sharing options...
tep392 Posted May 21, 2016 Share Posted May 21, 2016 7800protopic.JPG The POKEY board isn't setup to read EPROM's. You need to install a 74LS04 hex inverter and cut jumper W3 to read those. That might be why they look blank. Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 21, 2016 Author Share Posted May 21, 2016 Hey Tep, I will look into this. Any other help is appreciated. If I find something of interest it will be shared with all. Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 21, 2016 Author Share Posted May 21, 2016 Alright, I do not have a 74LS04 in stock, so it's on order from best electronics tonight. I will post back in a couple of days. Thanks tep. Quote Link to comment Share on other sites More sharing options...
+Mitch Posted May 21, 2016 Share Posted May 21, 2016 I got one of those boards several years ago. I think a few people did. All the EPROMS were blank from what I remember. Mitch Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 21, 2016 Author Share Posted May 21, 2016 The POKEY board isn't setup to read EPROM's. You need to install a 74LS04 hex inverter and cut jumper W3 to read those. That might be why they look blank. Im assuming the 74LS04 install with notch on top? And does C2 ( top ) need a capacitor? Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted May 21, 2016 Share Posted May 21, 2016 (edited) 78Proto#3 is repeated graphic data / code from Ballblazer: Edited May 21, 2016 by PacManPlus 4 Quote Link to comment Share on other sites More sharing options...
tep392 Posted May 21, 2016 Share Posted May 21, 2016 Is there a part number on the windowless chip? Judging from the repeating Ballblazer data, it seems your cart adapter isn't getting the job done. I doubt that is how the chip was programmed. I suggest finding someone with a programmer who can dump those EPROM's for you. I have one if you want to ship them to Illinois. Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 21, 2016 Author Share Posted May 21, 2016 It's been rubbed off. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted May 21, 2016 Share Posted May 21, 2016 It's been rubbed off. It looks like #3 is not an EPROM at all, the other ones are 27C256's (32K). EDIT: Which also explains why you were able to read data, it probably is just a Ballblazer ROM, that was dumped incorrectly. Oh, and don't buy something like a super common TTL chip, like a 74LS04 from Best, you can buy those for cents on ebay. 1 Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted May 22, 2016 Share Posted May 22, 2016 7800protopic.JPG Are you trying to form Voltron there? 1 Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 22, 2016 Author Share Posted May 22, 2016 No, wonder twin power, ACTIVATE! 1 Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted May 22, 2016 Share Posted May 22, 2016 What prototypes do you suspect they are/might've been? Quote Link to comment Share on other sites More sharing options...
Paul Westphal Posted May 25, 2016 Author Share Posted May 25, 2016 In a very remote possibility - Gauntlet. I'm pretty sure it was worked on. These chips came from Eugene Oregon. Quote Link to comment Share on other sites More sharing options...
DracIsBack Posted May 25, 2016 Share Posted May 25, 2016 In a very remote possibility - Gauntlet. I'm pretty sure it was worked on. These chips came from Eugene Oregon. It would be nice to discover someone else was working on that game. http://atariage.com/forums/topic/208533-alas-it-looks-like-gauntlet-does-not-exist/ Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted May 25, 2016 Share Posted May 25, 2016 (edited) It would be nice to discover someone else was working on that game. http://atariage.com/forums/topic/208533-alas-it-looks-like-gauntlet-does-not-exist/ Anything's possible. Up until 2 years ago, we didn't even know someone had done Paperboy for the 7800. It could be Electrocop, Demolition Derby, Elevator Action, Track & Field, MIDI Maze, Moon Patrol, or possibly a copy of something that's already out there. Fingers crossed it's something that hasn't been found already and it can be fully retrieved. Edited May 25, 2016 by Lynxpro Quote Link to comment Share on other sites More sharing options...
DracIsBack Posted May 25, 2016 Share Posted May 25, 2016 Anything's possible. Up until 2 years ago, we didn't even know someone had done Paperboy for the 7800. It could be Electrocop, Demolition Derby, Elevator Action, Track & Field, MIDI Maze, Moon Patrol, or possibly a copy of something that's already out there. Fingers crossed it's something that hasn't been found already and it can be fully retrieved. Ya - I think newer versions of prototypes already known are possible too. Rampart comes to mind where there's allegedly a newer version than the basic game out there. Skyfox is another I hope turns up one of these days. Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted May 26, 2016 Share Posted May 26, 2016 Ya - I think newer versions of prototypes already known are possible too. Rampart comes to mind where there's allegedly a newer version than the basic game out there. Skyfox is another I hope turns up one of these days. True. It could also be the AtariLab ROMs but Curt and Dan Kramer have copies of them already. 1 Quote Link to comment Share on other sites More sharing options...
Shawn Posted May 27, 2016 Share Posted May 27, 2016 True. It could also be the AtariLab ROMs but Curt and Dan Kramer have copies of them already. Or the Temperature cart but that is backed up also. Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted May 27, 2016 Share Posted May 27, 2016 Or the Temperature cart but that is backed up also. That's 1 of the 2 AtariLab carts. Quote Link to comment Share on other sites More sharing options...
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