unebonnevie Posted December 28, 2017 Share Posted December 28, 2017 Hi, I am mostly curious of the Atari 7800 ROMs. So, I downloaded one from the net. Looks like the below is Choplifter. And I think it's a 32KB ROM. Attached is what my programmer utility shows, the hex dump of the ROM. Is the "ACTUAL CART DATA STARTS HERE" text in the ROM normal expected in the ROM? Thanks! Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted December 28, 2017 Share Posted December 28, 2017 The first 128bytes are for emulators, to describe details about the actual ROM. 3 Quote Link to comment Share on other sites More sharing options...
unebonnevie Posted December 28, 2017 Author Share Posted December 28, 2017 The first 128bytes are for emulators, to describe details about the actual ROM. I see. So, if I were to burn the ROM into an EEPROM, e.g., the AT28C256 (a 32KB EEPROM), for the Atari 7800 to play, I need to skip the first 128 bytes. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted December 28, 2017 Share Posted December 28, 2017 Exactly Quote Link to comment Share on other sites More sharing options...
jericho_21 Posted February 1, 2019 Share Posted February 1, 2019 i have a question about A7800 ROMs. I can create a .BIN file for the 7800, but would I need to change the file extension to something else other than .BIN? If so, what file extension should I use to burn it to real hardware? I am curious. Thanks. Quote Link to comment Share on other sites More sharing options...
+SmittyB Posted February 1, 2019 Share Posted February 1, 2019 As the file attributes are stored separately to the file itself, the contents of that bin file should always be a byte for byte copy of what would go on a ROM chip regardless of how it's named. It may be the case that a particular burner uses different file extensions for different reasons but that would be specific to the burner used. 1 Quote Link to comment Share on other sites More sharing options...
jericho_21 Posted February 1, 2019 Share Posted February 1, 2019 As the file attributes are stored separately to the file itself, the contents of that bin file should always be a byte for byte copy of what would go on a ROM chip regardless of how it's named. It may be the case that a particular burner uses different file extensions for different reasons but that would be specific to the burner used. I see. Thanks for the info. Quote Link to comment Share on other sites More sharing options...
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