SoundGammon Posted February 6, 2021 Share Posted February 6, 2021 Has this version been ported to the 5200? 1 Quote Link to comment Share on other sites More sharing options...
Charlie_ Posted February 6, 2021 Share Posted February 6, 2021 4 hours ago, SoundGammon said: Has this version been ported to the 5200? Yes it has! 1 Quote Link to comment Share on other sites More sharing options...
SoundGammon Posted February 7, 2021 Author Share Posted February 7, 2021 Where can I get it? 1 Quote Link to comment Share on other sites More sharing options...
BIGHMW Posted February 14, 2021 Share Posted February 14, 2021 Down below might help bro. Deluxe Invaders.bin 2 Quote Link to comment Share on other sites More sharing options...
Dutchman2000 Posted March 10, 2021 Share Posted March 10, 2021 Roklan was working on an official conversion back then. I found a prototype but I can’t get it to work. 3 Quote Link to comment Share on other sites More sharing options...
SoundGammon Posted March 10, 2021 Author Share Posted March 10, 2021 30 minutes ago, Dutchman2000 said: Roklan was working on an official conversion back then. I found a prototype but I can’t get it to work. Maybe "compile" them into one 16k chip! Quote Link to comment Share on other sites More sharing options...
Dutchman2000 Posted March 11, 2021 Share Posted March 11, 2021 23 hours ago, SoundGammon said: Maybe "compile" them into one 16k chip! Tried that, didn’t work. Quote Link to comment Share on other sites More sharing options...
SoundGammon Posted March 11, 2021 Author Share Posted March 11, 2021 13 minutes ago, Dutchman2000 said: Tried that, didn’t work. Maybe it's the 8-bit version. Quote Link to comment Share on other sites More sharing options...
Dutchman2000 Posted March 11, 2021 Share Posted March 11, 2021 Just now, SoundGammon said: Maybe it's the 8-bit version. Nope, found on a 5200 board in a 5200 case. Quote Link to comment Share on other sites More sharing options...
Lynxpro Posted March 26, 2021 Share Posted March 26, 2021 On 3/10/2021 at 8:04 PM, Dutchman2000 said: Nope, found on a 5200 board in a 5200 case. Is it known who at Rocklan was working on the official conversion? Quote Link to comment Share on other sites More sharing options...
Dutchman2000 Posted March 28, 2021 Share Posted March 28, 2021 On 3/26/2021 at 12:13 PM, Lynxpro said: Is it known who at Rocklan was working on the official conversion? No, it is not known who was working on it. Quote Link to comment Share on other sites More sharing options...
Dutchman2000 Posted April 1, 2021 Share Posted April 1, 2021 Here are the ROM files. If someone can get it working that would be great. Deluxe Invaders HI.BIN Deluxe Invaders Hi-Mid.BIN Deluxe Invaders Lo-Mid.BIN Deluxe Invaders.bin 1 2 Quote Link to comment Share on other sites More sharing options...
Tempest Posted June 30, 2021 Share Posted June 30, 2021 Bump. Has anyone looked into this? How close is the code to the 8-bit version? 1 Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted July 11, 2021 Share Posted July 11, 2021 (edited) This is unlikely to work. The dumps seem to be correct, but there is a lot of unused space in them. The 8-bit version is 8K in size. These 3 chips contain only about 4K of data. The HI chip is mostly empty, except for the init vectors at the end, so it should be mapped to $B000-$BFFF. The LO-MID chip is fully filled, while the HI-MID chip only contains data in the first $50 bytes. I believe this is correct though - when joined together, LO-MID and HI-MID matchthe last ca. 4K of the 8-bit version. It seems that LO-MID should be mapped to$7000-$7FFF and HI-MID to $8000-$8FFF. The issue is, there is no data on the chips that would match the first 4K of the 8-bit version. The init vector points to $6047, which means that the missing 4K should be mapped to $6000-$6FFF. Overall, this cartridge seems to use the "Two chip 16 KB 5200 cartridge" mapping. The ROM image should be formed by joining the missing 4K, LO-MID, HI-MID and HI in that order, to form the following memory mapping: ??? -> $4000-$4FFF, $6000-$6FFF LO_MID -> $5000-$5FFF, $7000-$7FFF HI_MID -> $8000-$8FFF, $9000-$9FFF HI -> $A000-$AFFF, $B000-$BFFF Edited July 11, 2021 by Kr0tki Quote Link to comment Share on other sites More sharing options...
Tempest Posted July 11, 2021 Share Posted July 11, 2021 Thanks for confirming. I guess we need to find that missing chip. Sounds like the game was going to be the same as the 8-bit version though. Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted July 11, 2021 Share Posted July 11, 2021 I don't know much about ROM reading, but is it possible that LO-MID is in fact an 8K chip that was dumped as a 4K one? Quote Link to comment Share on other sites More sharing options...
Tempest Posted July 13, 2021 Share Posted July 13, 2021 On 7/11/2021 at 11:32 AM, Kr0tki said: I don't know much about ROM reading, but is it possible that LO-MID is in fact an 8K chip that was dumped as a 4K one? Wouldn't they all have to be the same size? Quote Link to comment Share on other sites More sharing options...
Kr0tki Posted July 13, 2021 Share Posted July 13, 2021 Not necessarily - it depends on the wiring of the cartridge PCB. I suppose that for prototyping they might have been using PCB's that are universal, i.e. accept either 4K or 8K chips in the sockets. Quote Link to comment Share on other sites More sharing options...
Tempest Posted July 13, 2021 Share Posted July 13, 2021 @Dutchman2000 Does this sound plausible? Quote Link to comment Share on other sites More sharing options...
Dutchman2000 Posted July 16, 2021 Share Posted July 16, 2021 The chips were found on a standard Atari made 5200 board. The chips were read correctly and are in fact the correct size. Quote Link to comment Share on other sites More sharing options...
Tempest Posted July 16, 2021 Share Posted July 16, 2021 I thought so. So one is missing then. Bummer Quote Link to comment Share on other sites More sharing options...
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