Tempest Posted October 26, 2003 Share Posted October 26, 2003 Too bad this is just a proof of concept demo. I wonder if any further work was done? Not that this would have made a killer game for the 7800 anyway... Tempest Quote Link to comment Share on other sites More sharing options...
+Mitch Posted October 26, 2003 Share Posted October 26, 2003 I don't have MESS installed at the moment, so I can't test if this works myself. But if you open the 48K GATO binary in a hex-editor and go to the very end of the file, you can see the bytes "47 5A" right after the space for the signature key. These two bytes should be "FF 47" to tell the 7800 BIOS that a 7800 cartridge is inserted and that it's 48K big. If you change the bytes and then generate a new signature key for the binary, it should pass the BIOS test and play on MESS. Ciao, Eckhard Stolberg Excellent! Thanks for the tip, it works fine now. I'm attaching a zip with the signed bin and A78 files. Tempest, on the GATO EPROM board, does it have the 48k mod done on it? Mitch gato.zip Quote Link to comment Share on other sites More sharing options...
Tempest Posted October 27, 2003 Share Posted October 27, 2003 Tempest, on the GATO EPROM board, does it have the 48k mod done on it? How can I tell? I assume so. BTW did anyone else notice that the one screenshot (the one with all the systems listed) mentions Radar? Wouldn't that be Sonar on a submarine? Tempest Quote Link to comment Share on other sites More sharing options...
+Mitch Posted October 27, 2003 Share Posted October 27, 2003 Tempest, on the GATO EPROM board, does it have the 48k mod done on it? How can I tell? I assume so. Does the board have any modifications done to it? The standard 32k EPROM board has no modifications on it. Incidentally, the mod is documented in the 7800 dev kit files. Mitch Quote Link to comment Share on other sites More sharing options...
Tempest Posted October 27, 2003 Share Posted October 27, 2003 Hmm... Doesn't look modded. What should I be looking for? Tempest Quote Link to comment Share on other sites More sharing options...
+Mitch Posted October 28, 2003 Share Posted October 28, 2003 Hmm... Doesn't look modded. What should I be looking for? Tempest Wires hanging off of it. Seriously, if it doesn't look modded then it's probably not. Mitch Quote Link to comment Share on other sites More sharing options...
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