DistantStar001 Posted February 15, 2020 Share Posted February 15, 2020 I have an Atari 800XL and recently got a handful of cartridges, including BASIC Computer Language (CXL4002). So I was wondering if there was any difference between the the BASIC on the cartridge and what’s built in on the 800XL? Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted February 15, 2020 Share Posted February 15, 2020 The 800XL most likely contains a Revision "B" BASIC ROM. Most brown-shell brown-label Atari BASIC cartridges were produced for the 400/800, and had revision "A". If your BASIC cartridge has a silver label, it is likely revision "C" - which is also included on all XE computers. (both versions are designated CXL4002) Both revision A and B had some serious bugs, which were finally fixed in C. Quote Link to comment Share on other sites More sharing options...
Roydea6 Posted February 16, 2020 Share Posted February 16, 2020 ? PEEK(43234) The result will be 162 for rev A, 96 for rev B, or 234 for rev C. 3 1 Quote Link to comment Share on other sites More sharing options...
SS Posted February 16, 2020 Share Posted February 16, 2020 1 hour ago, Nezgar said: The 800XL most likely contains a Revision "B" BASIC ROM. I own one a later Taiwanese manufactured, fully socketed 800XL that came with BASIC REV.C. I'm pretty sure that all of the fully socketed Hong Kong made XLs came with REV.B though. Quote Link to comment Share on other sites More sharing options...
DistantStar001 Posted February 17, 2020 Author Share Posted February 17, 2020 On 2/15/2020 at 3:32 PM, Nezgar said: The 800XL most likely contains a Revision "B" BASIC ROM. Most brown-shell brown-label Atari BASIC cartridges were produced for the 400/800, and had revision "A". If your BASIC cartridge has a silver label, it is likely revision "C" - which is also included on all XE computers. (both versions are designated CXL4002) Both revision A and B had some serious bugs, which were finally fixed in C. On 2/15/2020 at 4:27 PM, Roydea6 said: ? PEEK(43234) The result will be 162 for rev A, 96 for rev B, or 234 for rev C. Thanks, and also very interesting. I didn't mention it before, but in the same lot there was another BASIC cartridge installed into a Pac Man case. I just assumed it was the same, but now I'm going to have to check it out to see what version it is. ? Quote Link to comment Share on other sites More sharing options...
Rybags Posted February 17, 2020 Share Posted February 17, 2020 If it's homebrewed then likely it's B or C. There were known fixes around for some bugs in A and B before the official ones rolled in so possibly there might be other variants of Basic around. Quote Link to comment Share on other sites More sharing options...
DistantStar001 Posted February 18, 2020 Author Share Posted February 18, 2020 1 hour ago, Rybags said: If it's homebrewed then likely it's B or C. There were known fixes around for some bugs in A and B before the official ones rolled in so possibly there might be other variants of Basic around. Yup! Revision B. Same as what's built into the computer. ? I'll have to keep an eye out for the C cart! Quote Link to comment Share on other sites More sharing options...
Rybags Posted February 18, 2020 Share Posted February 18, 2020 Just make your own or get someone to do you an EPROM, probably cheaper. If you have C on hand there's no specific reason to develop using A or B. If it's existing software you're using and not modifying then it'll likely be stable in A and B - most of the pain from B comes from the type-in stage, A isn't far behind in that sense. Quote Link to comment Share on other sites More sharing options...
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