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Kr0tki

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  1. "Star Raiders" is a 12 KB game. This matches with the chip sizes that you've found - the cartridge contains one 64 Kbit = 8 KB and one 32 Kbit = 4 KB chip, which sums up to 12 KB. What bugs me, these two cartridges contain chips with differing internal part numbers. That most certainly means that the contents of the ROMs also differ. I've cross-referenced the numbers with Atari's "Engineering Information System - Item Master List". Here are all the pages with part numbers for 5200 ROMs: The ROMs from the "25 3 R" cartridge are described there as "CX5205 CARTRIDGE" while the "29 3 PR" ones are described as "CX5205P CARTRIDGE". Considering that, in the context of this list, the "P" in description of 2600 cartridges means PAL variants, this would mean that the "29 3 PR" cartridge indeed contains an updated version of "Star Raiders", modified to support the planned PAL 5200 console. There exists a PAL prototype of Star Raiders, so maybe they simply replaced the original release with the PAL-compatible version at some point in time? Look, there are several other ROMs listed as "CX52xxP CARTRIDGE". There may be more game revisions in the wild that we don't yet know of. I guess we need a coordinated effort to search for and dump the 5200 cartridges like we started in the 8-bit section a few years ago.
  2. My main issue with the 8-bit version was that player movement was restricted to a grid. Maybe it would not be such an issue if the game was fast enough, but it was so anemic, especially compared to the C64 version, that it made the control feel laggy to the level of actually hampering playability. Dark Chambers was much better.
  3. The worst for me was not the lack of any particular tile, but that Gauntlet was so disappointing. The title screen promised a lot, but the gameplay was not very good. At least we had Dandy and Dark Chambers. Championship Sprint would be great, certainly could be done better than Grand Prix Simulator. Also, I loved Xybots and Rampart on the Amiga and I believe both could be decently converted.
  4. Not that rare at all. "Road Runner" is an Atari Games game, and it was the norm that their games would be converted to everything but the kitchen sink, unfortunately that kitchen sink was the A8 line. In fact, the only game of theirs that was converted to the A8 was "Gauntlet".
  5. That whole Youtube channel is all fake videos - it is one of several "Thomas the Tank Engine" Alternate Reality Games, because ARGS are apparently a thing in the Thomas fandom.
  6. AtariAge has always been a safe space to me, but what has it now devolved to? Feline cornography?
  7. I've noticed that artwork was used on the Lynx "Super Asteroids/Missile Command" cartridge.
  8. It works for its intended purpose, that is, it does force the Self-Test when the jumper is removed.
  9. 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
  10. 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.
  11. About 1500 bytes free. For comparison, the difference between the original Pac-Man and the prototype with intermissions is ca. 5200 bytes.
  12. Glenn's conversion seems to be identical to the 5200 prototype, except for the aforementioned issue with the ghosts stopping/starting every second on the 1st life, and for the fact that the power pellet bug has been fixed. I don't think Glenn based his work on a different version of the 5200 prototype, but rather that he introduced both these changes when porting the 1-24 proto. Binary comparison of the 1-24 proto and Glenn's version shows that the two are mostly identical.
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