Tempest Posted October 24, 2023 Share Posted October 24, 2023 1 hour ago, Kr0tki said: Well, if we consider that Atari were prototyping their first bank-switched cartridge around that time... Who knows what the final version would look like if not for the Tramiels. I have some GCC contacts, I should ask them about this. It seems kind of odd to leave out the intermissions since all the 5200 versions of Pac-Man had them, but maybe there just wasn't enough space and the extra cost wasn't worth it? I may have a lead on the 2-28 version of 5200 Jr. Pac-Man. I'm hoping this version is the same as the 7-10 rom but for the 5200. 2 Quote Link to comment Share on other sites More sharing options...
Tempest Posted October 25, 2023 Share Posted October 25, 2023 @Kr0tki Can you take a look at these files. They were dumped from a 2-28 5200 proto, but for whatever reason I can't make it work. Hopefully they're good. JRPMPRHI.BIN JRPMPRLO.BIN Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted October 25, 2023 Share Posted October 25, 2023 Just join them in the LO-HI order (see attachment) and it works, when you choose the one-chip 16KB cartridge mapping. The 1-24 prototype uses the two-chip mapping - apparently they switched to a one-chip memory layout mid-production, same as in the case of the various Choplifter prototypes. The only difference between the 1-24 and 2-28 prototypes I noticed is that the power pellet bug has been fixed. Still no intermissions, and the sounds, the bear level, and the title screen are all identical. Jr. Pac-Man (1984-02-28)(Atari)(US)(proto).rom 1 Quote Link to comment Share on other sites More sharing options...
Tempest Posted October 25, 2023 Share Posted October 25, 2023 4 hours ago, Kr0tki said: Just join them in the LO-HI order (see attachment) and it works, when you choose the one-chip 16KB cartridge mapping. The 1-24 prototype uses the two-chip mapping - apparently they switched to a one-chip memory layout mid-production, same as in the case of the various Choplifter prototypes. The only difference between the 1-24 and 2-28 prototypes I noticed is that the power pellet bug has been fixed. Still no intermissions, and the sounds, the bear level, and the title screen are all identical. Jr. Pac-Man (1984-02-28)(Atari)(US)(proto).rom 16 kB · 0 downloads Ah I was still using the 2 chip bankswitching. So that's really the only difference between the two? Wow, I was hoping for a version identical to the 8-Bit proto. I guess someone will still need to port that one then. @scotty is the high difficulty you saw in the 1-24 proto still in the 2-28 proto? Quote Link to comment Share on other sites More sharing options...
RB5200 Posted April 16 Share Posted April 16 Does anybody have a working 32k file of Jr. Pacman, all the 32k files I have found do not seem to work. Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted April 16 Share Posted April 16 Why can't you just use the 16 KB ROM image? Quote Link to comment Share on other sites More sharing options...
RB5200 Posted April 16 Share Posted April 16 3 minutes ago, Kr0tki said: Why can't you just use the 16 KB ROM image I can, and I have it in 16k, but I also found 32k that are supposed to be for the 5200, but the ones I have found do not actually work. I have it in cartridge form also which is a 32k rom image, so was wondering why the ones I have found don't work Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted April 16 Share Posted April 16 Well I don't know why they don't work, because I haven't seen them, but still, I don't see the point in investigating the issue, if the 16 KB ROMs work for you. Quote Link to comment Share on other sites More sharing options...
Tempest Posted April 16 Share Posted April 16 @Kr0tkiIs there any possible way you could port the final 8-Bit version to the 5200? It's a shame that the 5200 was the development system for the game yet never got the completed version. I say this not knowing how easy or difficult it is to do such a thing so if I'm way out of line just let me know. I'm not a programmer. Jr. Pac-man (7-10-84).rom Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted April 16 Share Posted April 16 Sorry, it's just not my cup of tea. Quote Link to comment Share on other sites More sharing options...
BIGHMW Posted April 16 Share Posted April 16 2 hours ago, Kr0tki said: Sorry, it's just not my cup of tea. Maybe Paul Lay @playsoft can come out of retirement and do it, I hope he can as well as some other 8-bit titles I'll later present in a .zip folder for him to convert as well as perhaps the two Maclean versions of 8-bit Defender and Stargate mentioned in another thread Quote Link to comment Share on other sites More sharing options...
+bent_pin Posted April 16 Share Posted April 16 1 Quote Link to comment Share on other sites More sharing options...
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