Shannon Posted June 29, 2021 Share Posted June 29, 2021 I have an executable titled "Vanguard Final" and I was wondering if anyone had any information on this and how it is different from the other Vanguard image that is out there? Thank you Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted June 29, 2021 Share Posted June 29, 2021 I guess boot it up, and compare it to the one on Atari Mania? I remember having this game on cart as a kid... http://www.atarimania.com/game-atari-400-800-xl-xe-vanguard_s5645.html Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted June 29, 2021 Share Posted June 29, 2021 (edited) 2 hours ago, Shannon said: I have an executable titled "Vanguard Final" and I was wondering if anyone had any information on this and how it is different from the other Vanguard image that is out there? Thank you Check the CRC against other versions, technically it should match the released cart, as for how it's different, impossible to say, could be minor tweaks like speed, chances are it's not majorly different to other versions.. Edited June 29, 2021 by Mclaneinc Spelling etc Quote Link to comment Share on other sites More sharing options...
Shannon Posted June 29, 2021 Author Share Posted June 29, 2021 (edited) 6 hours ago, Mclaneinc said: Check the CRC against other versions, technically it should match the released cart, as for how it's different, impossible to say, could be minor tweaks like speed, chances are it's not majorly different to other versions.. Hard to do. It's an executable. It's 400 bytes larger than the other executable I have and 266 bytes larger than the "Homesoft 5200" version. Now I noticed that Atari Protos has 3 prototypes listed. Mid level WIP, late level WIP and Final version. Of course looking at the descriptions of differences I think it is safe to say none of the three versions I have access two are even close to the first two prototypes. Edited June 29, 2021 by Shannon Quote Link to comment Share on other sites More sharing options...
oky2000 Posted June 30, 2021 Share Posted June 30, 2021 Can you upload it so others can examine it? I loved the arcade version of Vanguard, such an awesome early arcade game. 4 fire buttons was cool. Quote Link to comment Share on other sites More sharing options...
Shannon Posted June 30, 2021 Author Share Posted June 30, 2021 ok.. Here they are. Quick play through I couldn't see any diff. Vanguard - Final.zip Vanguard (5200).zip Vanguard (Homesoft).zip Quote Link to comment Share on other sites More sharing options...
www.atarimania.com Posted June 30, 2021 Share Posted June 30, 2021 (edited) All appear to be exactly the same... or am I missing something? What I'd like to know is whether "our" version is an unofficial port of the 5200 cart or a proper Atari prototype developed concurrently but never released. Edited June 30, 2021 by www.atarimania.com Quote Link to comment Share on other sites More sharing options...
xxl Posted June 30, 2021 Share Posted June 30, 2021 "Vanguard Final" - This file is corrupted. see the address, it should be: 86D5: B9 1B 87 LDA $ 871B, Y 1 Quote Link to comment Share on other sites More sharing options...
+DjayBee Posted June 30, 2021 Share Posted June 30, 2021 6 hours ago, www.atarimania.com said: All appear to be exactly the same... or am I missing something? What I'd like to know is whether "our" version is an unofficial port of the 5200 cart or a proper Atari prototype developed concurrently but never released. "Yours" is absolutely identical to "Vanguard (5200).xex". All files are codewise identical except for loading code and the difference noticed by @xxl ($B9 changed to $41). (Actually there is a second byte changed to $41 - this time from $D0). They files do differ quite heavily in their segmentation of the binary load files. Quote Link to comment Share on other sites More sharing options...
xxl Posted June 30, 2021 Share Posted June 30, 2021 the problem is that it causes later (when shooting up) the code execution, e.g.: 86D7: 87 1D SAX $1D Quote Link to comment Share on other sites More sharing options...
Shannon Posted June 30, 2021 Author Share Posted June 30, 2021 (edited) ok guys thanks. So it sounds like the "Vanguard Final" is b0rked and the other two are same just different segmentation. I found that file at this site http://devwebcl.atarionline.pl/fix/ But no explanation on that site as to what was done to any of the files or what was "fixed". Edited June 30, 2021 by Shannon Quote Link to comment Share on other sites More sharing options...
www.atarimania.com Posted June 30, 2021 Share Posted June 30, 2021 1 hour ago, DjayBee said: "Yours" is absolutely identical to "Vanguard (5200).xex". Sorry, I meant the computer version that has been floating around for the last 37-38 years or so, not specifically the file on our site. Do we know for sure it is hacked from the 5200 release or is it a proper 8-bit prototype developed in parallel with the 5200 port? Quote Link to comment Share on other sites More sharing options...
+DjayBee Posted June 30, 2021 Share Posted June 30, 2021 43 minutes ago, Shannon said: ok guys thanks. So it sounds like the "Vanguard Final" is b0rked and the other two are same just different segmentation. I found that file at this site http://devwebcl.atarionline.pl/fix/ But no explanation on that site as to what was done to any of the files or what was "fixed". Why not ask @devwebcl? Quote Link to comment Share on other sites More sharing options...
devwebcl Posted June 30, 2021 Share Posted June 30, 2021 (edited) 1 hour ago, DjayBee said: Why not ask @devwebcl? Not sure about the features fixed there. That is a simple repository with fixed versions I've found in different places. I don't have the info in my blog, and I forgot about it. Edited June 30, 2021 by devwebcl Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted July 8, 2021 Share Posted July 8, 2021 does the above mentioned fixes make this identical to what's out there or if fixed up would this be a better version in some way? Quote Link to comment Share on other sites More sharing options...
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