VonGuard Posted April 27, 2008 Author Share Posted April 27, 2008 But cpkadv-rev2-1-2600-a527.bin looks like it falls between 6-14 and 6-29. 5-24 is just a slide show with no gameplay, but cpkadv-rev2-1-2600-a527.bin has the girl with brown hair (not yellow) which was only in revisions 6-14 and 6-29. Also, how does 6-29 come before 7-3? Tempest While we were dumping them, we were wondering about those... cbpark2-atari-7-3-AD79-rev3.bin cbpark3-atari-6-29-AD79.bin Seeing that the checksum is the same, the game is likely 100% exact (hence the same checksum). I think the naming convention changed, since the revisions started with cbpark0 being rev 1, which was confusing. I don't remember what the labels looked like (Von Guard?) but they might just be the same ROM burned by two different people. Joe Yeah, I seem to recall that we figured out that someone else's handwriting was on these. One guy abbreviated it CB Park, the other CPK Adv. The image below shows the two styles. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted April 27, 2008 Share Posted April 27, 2008 Why are the last two dated the same? Two different revisions on one day? Also, I don't suppose rev 2.1 had a date on it did it? Tempest Diff: $000006FF: $A9 $EA Diff: $00000700: $01 $EA Diff: $00000701: $85 $EA Diff: $00000702: $F7 $EA Diff: $00000FB1: $09 $08 There are 5 bytes different, the left is version 8 and the right is version 9. Looks like a LDA #$01 / STA $F7 was removed and a variable decremented. Quote Link to comment Share on other sites More sharing options...
joesmooth Posted April 27, 2008 Share Posted April 27, 2008 So we have.... cbpark0-atari-5-24-65EC-rev1.bin cbpark1-atari-6-14-A64D-rev2.bin cpkadv-rev2-1-2600-a527.bin cbpark2-atari-7-3-AD79-rev3.bin / cbpark3-atari-6-29-AD79.bin cpkadv-rev4-atari-7-27-84-8AED.bin cbpark5-atari-8-21.bin cbpark6-atari-9-4.bin cbpark7-atari-9-7.bin cbpark8-atari-9-13.bin cbpark9-atari-9-13.bin Why are the last two dated the same? Two different revisions on one day? Also, I don't suppose rev 2.1 had a date on it did it? Tempest Looks correct. The last two are dated the same, but I believe are different binaries (I haven't confirmed that). Could be that they burned one earlier in the day, made changes, and burned another. Or, maybe there was a rumor that the project was getting killed and someone wanted to burn a final revision before getting escorted out of the building? Rev. 2.1 didn't have a date on it. The filenames contain the exact contents of what was written on the EPROM labels. Joe Quote Link to comment Share on other sites More sharing options...
Tempest Posted April 27, 2008 Share Posted April 27, 2008 Why are the last two dated the same? Two different revisions on one day? Also, I don't suppose rev 2.1 had a date on it did it? Tempest Diff: $000006FF: $A9 $EA Diff: $00000700: $01 $EA Diff: $00000701: $85 $EA Diff: $00000702: $F7 $EA Diff: $00000FB1: $09 $08 There are 5 bytes different, the left is version 8 and the right is version 9. Isn't $EA a NOP? Did they comment something out in the end? Tempest Quote Link to comment Share on other sites More sharing options...
Tempest Posted April 27, 2008 Share Posted April 27, 2008 Are there pictures of all the CPK chips? Tempest Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted April 27, 2008 Share Posted April 27, 2008 Why are the last two dated the same? Two different revisions on one day? Also, I don't suppose rev 2.1 had a date on it did it? Tempest Diff: $000006FF: $A9 $EA Diff: $00000700: $01 $EA Diff: $00000701: $85 $EA Diff: $00000702: $F7 $EA Diff: $00000FB1: $09 $08 There are 5 bytes different, the left is version 8 and the right is version 9. Isn't $EA a NOP? Did they comment something out in the end? Tempest Yes, $EA is nop, a LDA #$01 / STA $F7 was removed. Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 27, 2008 Share Posted April 27, 2008 Quite simply, one of the most amazing discoveries ever. Talk about proto heaven! Kudos to you VonGuard!! Quote Link to comment Share on other sites More sharing options...
Tempest Posted April 27, 2008 Share Posted April 27, 2008 Why are the last two dated the same? Two different revisions on one day? Also, I don't suppose rev 2.1 had a date on it did it? Tempest Diff: $000006FF: $A9 $EA Diff: $00000700: $01 $EA Diff: $00000701: $85 $EA Diff: $00000702: $F7 $EA Diff: $00000FB1: $09 $08 There are 5 bytes different, the left is version 8 and the right is version 9. Isn't $EA a NOP? Did they comment something out in the end? Tempest Yes, $EA is nop, a LDA #$01 / STA $F7 was removed. And what did those do I wonder? From my limited knowledge of assembly, it was loading the accumulator and storing the value. I wonder why they removed this... Tempest Quote Link to comment Share on other sites More sharing options...
Tempest Posted April 27, 2008 Share Posted April 27, 2008 Ok one other thing that doesn't make sense. If the dates are to be believed, the project was started May of 84 and finished September of 84. Wasn't 2600 Coleco development shut down well before this point? I could believe May 83 to Sept 83, but Sept 84 seems way too late. Then again, some of the EPROMs are labeled 84, so I guess that it must be 84... Tempest Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted April 27, 2008 Share Posted April 27, 2008 And what did those do I wonder? From my limited knowledge of assembly, it was loading the accumulator and storing the value. I wonder why they removed this... Tempest Hard to tell without looking at the full disassembly. Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 27, 2008 Share Posted April 27, 2008 What's a good emulator for the Colecovision? Anyone? Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted April 27, 2008 Share Posted April 27, 2008 What's a good emulator for the Colecovision? Anyone? VColeco Quote Link to comment Share on other sites More sharing options...
Inky Posted April 27, 2008 Share Posted April 27, 2008 What's a good emulator for the Colecovision? Anyone? I like ADAMEm, but it doesnt run well on VIsta Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 27, 2008 Share Posted April 27, 2008 I just remembered that not only do I have a working Colecovision, but an Atarimax 128-in-1 Flash cart. Completely forgot about it. You know you have too much stuff when. Anyhow I couldn't do anything with Sword and the Sorcerer. Damn did that demo ever look cool though! Cabbage Patch Kids Adventure in the Park for the Coleco looks very good too. I see that this one was released though? The Atari version is excellent. Quote Link to comment Share on other sites More sharing options...
supercat Posted April 27, 2008 Share Posted April 27, 2008 And what did those do I wonder? From my limited knowledge of assembly, it was loading the accumulator and storing the value. I wonder why they removed this... The game could have been rigged with an 'unlimited lives' cheat or some such thing which would have to be removed for production. Replacing code with NOPs is often safer than simply removing it, though my preference would have been to simply replace the STA with a BIT so as to avoid disturbing cycle timings. Quote Link to comment Share on other sites More sharing options...
joesmooth Posted April 27, 2008 Share Posted April 27, 2008 (edited) And what did those do I wonder? From my limited knowledge of assembly, it was loading the accumulator and storing the value. I wonder why they removed this... The game could have been rigged with an 'unlimited lives' cheat or some such thing which would have to be removed for production. Replacing code with NOPs is often safer than simply removing it, though my preference would have been to simply replace the STA with a BIT so as to avoid disturbing cycle timings. I just loaded both games back and forth in Stella and it looks like the only difference is the "1" at the top of the title screen. Maybe designating 1 player? Anyway, I think it's removed in the second version. Joe Edited April 27, 2008 by joesmooth Quote Link to comment Share on other sites More sharing options...
VonGuard Posted April 27, 2008 Author Share Posted April 27, 2008 Are there pictures of all the CPK chips? Tempest Yes, mixed in and out of order, at http://www.flickr.com/photos/vonguard/sets...57604647023310/ Quote Link to comment Share on other sites More sharing options...
Tempest Posted April 27, 2008 Share Posted April 27, 2008 And what did those do I wonder? From my limited knowledge of assembly, it was loading the accumulator and storing the value. I wonder why they removed this... The game could have been rigged with an 'unlimited lives' cheat or some such thing which would have to be removed for production. Replacing code with NOPs is often safer than simply removing it, though my preference would have been to simply replace the STA with a BIT so as to avoid disturbing cycle timings. I just loaded both games back and forth in Stella and it looks like the only difference is the "1" at the top of the title screen. Maybe designating 1 player? Anyway, I think it's removed in the second version. Joe Good catch. It was probably left over from a planned level/variation select that was never implemented. Tempest Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 27, 2008 Share Posted April 27, 2008 How far has everyone played? I'm just playing the last revision and made it to scene 21. This is easily one of the best titles for the 2600, and it is hard to believe it never got released back in the day. It would have sold like hotcakes. You can see the inspiration from Pitfall! and a little bit of Jungle Hunt. The spitting plant reminded me of one of the Super Mario games, but platforms being raised up by fountains? come on! An 2600 game is not supposed to be that good. Add in the catchy soundtrack and a fairly linear learning curve and I'm just amazed this was sitting in someones box of junk until it shows up at the flea market. I'm wondering how many scenes there are? Tempest the Coleco name only appears in the first copy and then disappears replaced with OAA Inc or DAA Inc. What happened there you think? Konami is always there, but on the first rom Coleco has a 1984 copyright as well in anticipation for the 1984 release? Funny how the Coleco logo is changed and so is the year to 1983. I'm just wondering if Coleco let the rights go to someone else. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted April 27, 2008 Share Posted April 27, 2008 Quote Link to comment Share on other sites More sharing options...
Omegamatrix Posted April 27, 2008 Share Posted April 27, 2008 Scene 25. I must say that this game showcases the nice vivid colors you can get on the 2600 compared to the Coleco. This guy went to town programming, and it is up there with some of the best homebrews! I love the jumping fish animation. I've had it for now though. I'm sure someone will blow through this whole game quick if they are a good gamer. Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 27, 2008 Share Posted April 27, 2008 Well, you certainly wrote some video game history, VonGuard. Amazing find and very generous of you to release those ROMs. Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted April 27, 2008 Share Posted April 27, 2008 Maybe this CloneSpy analysis helps: 0 1 2 3 4 5 6 7 8 9 0 cpkadv-rev2-1-2600-a527······· · 98 38 38 38 39 44 44 49 31 1 cbpark1-atari-6-14-A64D-rev2·· 95 · 38 38 38 38 44 44 48 31 2 cbpark9-atari-9-13············ 60 61 · 99 92 91 73 59 51 38 3 cbpark8-atari-9-13············ 60 61 99 · 92 91 73 59 51 38 4 cbpark7-atari-9-7············· 60 61 92 92 · 92 74 59 52 38 5 cbpark6-atari-9-4············· 61 61 90 90 92 · 74 60 52 38 6 cbpark5-atari-8-21············ 67 67 70 70 71 72 · 72 61 70 7 cpkadv-rev4-atari-7-27-84-8AED 70 71 59 58 59 60 74 · 66 71 8 cbpark2-atari-7-3-AD79-rev3··· 75 76 50 50 50 51 61 65 · 72 9 cbpark0-atari-5-24-65EC-rev1·· 53 55 25 25 25 25 28 28 29 · Which gives this order: cbpark9, cbpark8, cbpark7, cbpark6, cbpark5, cpkadv rev4, cbpark2, cbpark0 cbpark1 and cpkadv rev2 (newer) seem to be a different development branch closest to cbpark2 which was abandoned. Maybe the contain some later dropped features. Quote Link to comment Share on other sites More sharing options...
Rom Hunter Posted April 27, 2008 Share Posted April 27, 2008 Thomas, So cbpark9-atari-9-13 is the most complete version? Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted April 27, 2008 Share Posted April 27, 2008 So cbpark9-atari-9-13 is the most complete version? 8 or 9, yes. Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.