Omegamatrix Posted April 21, 2008 Author Share Posted April 21, 2008 The third is exactly like the first, except all unused bytes in the ROM have been changed from 00 to FF (in other words, probably was read from an EPROM as it is faster to program FF than 00 for unused bytes). You are right. That is all that is different. Crystal_Castles_Comparisons.zip If it is a proto then it is the finished version. It could have been read with an eprom burner as a lot of protos (that I have seen photos of) are socketed eproms. So someone could have dumped it that way. Then again it might my dumper is just leaving $00 in that space as it is for ram? Eckhard would know. Maybe the roms are one and the same depending on how you dump them. They seem to be functionally the same. Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 (edited) Stella.pro says it's a verified [!] NTSC prototype ROM. Must be a final release proto. Crystal Castles [a] removed. What shall I do with the Donkey Kongs, Space Tunnel and Night Stalker? Do they work on real hardware? Also, there's a 4K Ghost Manor. What's up with that one? Edited April 21, 2008 by Rom Hunter Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 21, 2008 Author Share Posted April 21, 2008 Stella.pro says it's a verified [!] NTSC prototype ROM. Must be a final release proto. Crystal Castles [a] removed. What shall I do with the Donkey Kongs, Space Tunnel and Night Stalker? Do they work on real hardware? Also, there's a 4K Ghost Manor. What's up with that one? Bad Dumps (don't work on real hardware): Donkey Kong (1982) (CBS Electronics, Dan Kitchen, Garry Kitchen) (4L1700, 4L1701, 4L1702, 4L1802, 4L2274) (PAL).bin Night Stalker (AKA Dark Cavern) (1989) (Telegames) (PAL) [a].bin Space Tunnel - Weltraum-Tunnel (1982) (Bit Corporation) (PG202) (PAL) [a].bin The Donkey Kong [a2] has a strange halo following Mario around. This is on real hardware too. It doesn't crash, but should be taken a closer look at. Donkey Kong [a1] works fine on real hardware and emulation. I'm going to keep a copy of that broken Space Tunnel rom. My favorite. It's just so bad. I'll take a look at Ghost Manor. It's better if you post the roms so we don't mix them up though. Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 (edited) The Donkey Kong [a2] has a strange halo following Mario around. This is on real hardware too. It doesn't crash, but should be taken a closer look at.It's not good. The ladders are broken and you die in the second level without any reason. Looks like some nerd's hack attempt to me. Bad Donkey Kongs, Space Tunnel and Night Stalker removed from my collection. Well, that cleans it up nicely. Please check that Ghost Manor for me. I'll try to remember other faulty ROMs. Yes, of course the infamous second level Bi! Bi! bug, but that's originally there. Edited April 21, 2008 by Rom Hunter Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 21, 2008 Author Share Posted April 21, 2008 The Donkey Kong [a2] has a strange halo following Mario around. This is on real hardware too. It doesn't crash, but should be taken a closer look at.It's not good. The ladders are broken and you die in the sceond level. Looks like some nerd's hack attempt to me. Nope, not a hack job. Looks like bit rot or a bad dump. There is only one byte that is different: file 1: Donkey Kong (1982) (CBS Electronics, Dan Kitchen, Garry Kitchen) (4L1700, 4L1701, 4L1702, 4L1802, 4L2274) (PAL) [a1].bin file 2: Donkey Kong (1982) (CBS Electronics, Dan Kitchen, Garry Kitchen) (4L1700, 4L1701, 4L1702, 4L1802, 4L2274) (PAL) [a2].bin 0FF9 02 FF The Ghost Manor is just a split of the 8k rom. Whoever did it must have fired it up in the emulator and said "great it works! It must be 4k:. Unfortunately the game resets on real hardware likes it does in emulation. You never make it to the next screen as half the rom is missing. Another underdump. Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 The Ghost Manor is just a split of the 8k rom. Whoever did it must have fired it up in the emulator and said "great it works! It must be 4k:. Unfortunately the game resets on real hardware likes it does in emulation. You never make it to the next screen as half the rom is missing. Another underdump.Weird. It almost looks like a preview. Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 21, 2008 Author Share Posted April 21, 2008 Rom, did you check out that list of overdumps that Hornpipe2 made? It is really good. Remember this list is true only if both halves of the overdumped rom exactly match the rom it is compared too. That means not one bit is different. I added some spacing, but essentially the list in unchanged. Dupes.zip Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 (edited) Yes, I used it to update my V3 collection. However, I will leave the overdumps in. You can simply look for (4K), (8K) and (16K) and pick them out if you want (mind the prototypes though). Ghost Manor (4K) removed. I don't think there are any underdumps left now. Edited April 21, 2008 by Rom Hunter Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 (edited) What about this one? 2_in_1___Frostbite__River_Raid__Unknown_.bin Does it work on real hardware? Edited April 21, 2008 by Rom Hunter Quote Link to comment Share on other sites More sharing options...
Hornpipe2 Posted April 21, 2008 Share Posted April 21, 2008 (edited) Yes, I used it to update my V3 collection. However, I will leave the overdumps in. I have to respectfully disagree with this position - overdumps are the result of a problem with the cart reader, and have nothing really to do with the ROM itself. So they have no real historical significance, and only clutter up the collection. As far as Crystal Castles: After thinking about it I think this may be the "Crystal Castle COZ5010" proto listed on AtariProtos - probably the final version of the NTSC before it went to production. Edited April 21, 2008 by Hornpipe2 Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 (edited) Yes, I used it to update my V3 collection. However, I will leave the overdumps in. I have to respectfully disagree with this position - overdumps are the result of a problem with the cart reader, and have nothing really to do with the ROM itself. So they have no real historical significance, and only clutter up the collection. Ok, I just killed my darlings and removed the 200 (!) overdumps. However, some overdumps not on your dupes list are still there: Combat___Tank_Plus__Tank___1977___Atari__Joe_Decuir__Steve_Mayer__Larry_Wagner___Sears___CX2601___99801__6_99801__49_75124___4K_.bin Indy_500___Race__Race_Car___Driving_Controller___1977___Atari__Carla_Meninsky__Ed_Riddle___Sears___CX2611___99821__49_75149___4K___a_.bin Slot_Machine___Slots__1979___Atari__David_Crane___Sears___CX2653___6_99823__49_75111___4K___a_.bin Surround___Chase__Blockade___1977___Atari__Alan_Miller___Sears___CX2641___99807__49_75105___4K___a_.bin Video_Life__1981___CommaVid__John_Bronstein___CM_002___4K___a_.bin Pac_Man__1982___Atari__Tod_Frye___Sears___CX2646___49_75185___8K_.bin Superman__1979___Atari__John_Dunn___Sears___CX2631___49_75152___8K_.bin Rocky___Bullwinkle__1983___M_Network__Steve_Crandall__Patricia_Lewis_Du_Long___MT4646___Prototype___9K_.bin Omega_Race__Booster_Grip___1983___CBS_Electronics___4L_2737_0000___16K_.bin Stargate__1984___Atari__Bill_Aspromonte__Andrew_Fuchs___CX26120___16K_.bin What exactly is the matter with these? Edited April 21, 2008 by Rom Hunter Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 21, 2008 Share Posted April 21, 2008 Any idea? Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 22, 2008 Author Share Posted April 22, 2008 (edited) What about this one? 2_in_1___Frostbite__River_Raid__Unknown_.bin Does it work on real hardware? Yes and no. Can I be any more vague? It didn't work loaded up as a 8K. I split the rom and half and compared it to the River Raid rom and Frostbite rom that are out there. They matched 100% and worked on real hardware of course. This looks like it was meant for a dip switched cart. No way it will ever work in emulation or in a Krok. I mean you can't switch between games at all. You have override the emulator as it wants to use 8k bankswitching. When you split it is exactly the same as roms that are out there so would you keep it? It's useless unless you built a cart with a physical switch on it, and the rom image is nothing unique. Just two normal roms stuck together. Edited April 22, 2008 by Omegamatrix Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 22, 2008 Author Share Posted April 22, 2008 (edited) This Combat has Space War stuck in its other 2k half. I compared both halves and again zero differences to existing roms. You can never get into Space War though. For that you would need a physical dip switch, like on those Dactar carts. Those switches will allow you to change roms. Edited April 22, 2008 by Omegamatrix Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 22, 2008 Author Share Posted April 22, 2008 (edited) I think I have looked at this Indy 500, Slot Machine, Surround, Video Life all before Rom. Here's where I compared this Indy 500 in a thread before: http://www.atariage.com/forums/index.php?s...t&p=1471934 Nukey could explain Rocky and Bullwinkle a lot better since he does all those Supercharger conversions. Video Life has extra ram so any data you could get a lot of different dumps of it depending what is in the ram at the time. When you split off the ram you get a 100% match to the 2k rom. That Pac-man is a hack, no? I'll look at some of these in more detail over the next few days. Edited April 22, 2008 by Omegamatrix Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 22, 2008 Author Share Posted April 22, 2008 Ok, I just killed my darlings and removed the 200 (!) overdumps. Good on you! That will clean it up nicely. Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 22, 2008 Author Share Posted April 22, 2008 (edited) double post. please delete. Edited April 22, 2008 by Omegamatrix Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 22, 2008 Share Posted April 22, 2008 (edited) Ok, removed the Combat / Space War ROM and the Frostbite / River Raid ROM. That 8K Pac-Man seems like a hack indeed. It has black background and the ROM is dated 2004. I moved it to my Hacks & Homebrews collection. Omega Race and Stargate do not seem to work. Bad dumps? Edited April 22, 2008 by Rom Hunter Quote Link to comment Share on other sites More sharing options...
Hornpipe2 Posted April 22, 2008 Share Posted April 22, 2008 I don't think there are any underdumps left now. Found another one: H.E.R.O. (1984) (Activision, John Van Ryzin) (AZ-036-04) (4K).bin Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 22, 2008 Share Posted April 22, 2008 Found another one:H.E.R.O. (1984) (Activision, John Van Ryzin) (AZ-036-04) (4K).bin Already removed. Quote Link to comment Share on other sites More sharing options...
Hornpipe2 Posted April 22, 2008 Share Posted April 22, 2008 Found another one:H.E.R.O. (1984) (Activision, John Van Ryzin) (AZ-036-04) (4K).bin Already removed. D'oh! Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 22, 2008 Share Posted April 22, 2008 Hornpipe, What exactly is wrong with that Stargate and Omega Race in post #161? Quote Link to comment Share on other sites More sharing options...
Hornpipe2 Posted April 22, 2008 Share Posted April 22, 2008 Hornpipe, What exactly is wrong with that Stargate and Omega Race in post #161? Near as I can tell that Omega Race was supposed to be 12k, as the last 4k is mostly just 0xEA: 0000000 eaea eaea eaea eaea eaea eaea eaea eaea * 0000200 01a9 fa8d ea1f eaea eaea eaea eaea eaea 0000210 eaea eaea eaea eaea eaea eaea eaea eaea * 0000ff0 eaea eaea eaea eaea eaea eaea 1200 eaea 0001000 Is this maybe an attempt at reading 16k from a 12k ROM and not factoring in proper CBS bankswitching? I don't know much about CBS carts... In any case the first 12k of this is identical to Omega Race (Booster Grip) (1983) (CBS Electronics) (4L 2737 0000).bin. I call overdump. Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 22, 2008 Share Posted April 22, 2008 Ok, I removed Omega Race. It doesn't work on emulators at all. Quote Link to comment Share on other sites More sharing options...
Hornpipe2 Posted April 22, 2008 Share Posted April 22, 2008 I split the Stargate. Attached are both halves. Differences are solely in the Interrupt vectors on Bank 0. star1.bin is really buggy and the aliens move in funky ways. star2.bin matches 100% with our known-good ROM. I'd say: Bad dump... star1.bin star2.bin Quote Link to comment Share on other sites More sharing options...
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