Ed Fries Posted August 1, 2011 Share Posted August 1, 2011 Hi Guys, I thought I'd celebrate the one year anniversary of the release of Halo 2600 at the Classic Gaming Expo by making the source code available. It's not particularly cleaned up or well documented but I put it here, as is, with the hopes that it will help some future 2600 homebrew programmers, just as I was helped by others who posted their code. Please let me know if you have any questions and thanks to everyone for their kind words about this project over the last year. -Ed Fries halo2600.zip 28 Quote Link to comment Share on other sites More sharing options...
Tjoppen Posted August 1, 2011 Share Posted August 1, 2011 Hooray I see some tricks in there that I have yet to try, like early HMOVE. Here's some readability feedback, if anyone feels like fixing: * Consistent indentation would be nice. * Maybe use the "org" and "ds" directives to prettify the RAM declarations. Everything being in one file felt a little unusual. I use Visual Studio for my projects with dependencies on generators and include files to make things automagically generate/assemble when needed. Makes life easier. Quote Link to comment Share on other sites More sharing options...
Ed Fries Posted August 1, 2011 Author Share Posted August 1, 2011 * Consistent indentation would be nice. Indentation is (more or less) consistent if you view it in the editor it was created in. Which is... wait for it... Notepad.exe! -EdF 2 Quote Link to comment Share on other sites More sharing options...
ScumSoft Posted August 1, 2011 Share Posted August 1, 2011 (edited) Neat, I'll enjoy looking this over. Thanks! [edit] I took some time and formatted the text, so now it compiles and looks proper in Notepad++ halo2600_2011_08_01_143732.zip Edited August 1, 2011 by ScumSoft 1 Quote Link to comment Share on other sites More sharing options...
Rev Posted August 1, 2011 Share Posted August 1, 2011 Hey, when is Halo 2600 2 coming out!!!! Quote Link to comment Share on other sites More sharing options...
Keatah Posted August 2, 2011 Share Posted August 2, 2011 This is what the hobby is all about! Thanks a bunch! Good vibes going on in this thread and the BallBlazer project. Quote Link to comment Share on other sites More sharing options...
dwane413 Posted August 2, 2011 Share Posted August 2, 2011 Thanks. Quote Link to comment Share on other sites More sharing options...
TheRedEye Posted August 4, 2011 Share Posted August 4, 2011 You're a treasure Ed, thanks for sharing. Quote Link to comment Share on other sites More sharing options...
Syntaxerror999 Posted August 8, 2011 Share Posted August 8, 2011 Hi Guys, I thought I'd celebrate the one year anniversary of the release of Halo 2600 at the Classic Gaming Expo by making the source code available. It's not particularly cleaned up or well documented but I put it here, as is, with the hopes that it will help some future 2600 homebrew programmers, just as I was helped by others who posted their code. Please let me know if you have any questions and thanks to everyone for their kind words about this project over the last year. -Ed Fries Why not charge $32K for it 1 Quote Link to comment Share on other sites More sharing options...
+Random Terrain Posted August 8, 2011 Share Posted August 8, 2011 Coming in summer 2012: Halo 2600 2 programmed using only batari Basic. 1 Quote Link to comment Share on other sites More sharing options...
vdub_bobby Posted August 26, 2011 Share Posted August 26, 2011 (edited) What's the point of this? PlayerTop LDA ScanLine ; 3 CMP M1Pos ; 3 PHP ; 3 CMP M0Pos ; 3 PHP ; 3 PLA ; 4 PLA ; 4 EDIT: And thanks for posting this. Edited August 26, 2011 by vdub_bobby Quote Link to comment Share on other sites More sharing options...
Ed Fries Posted August 26, 2011 Author Share Posted August 26, 2011 What's the point of this? PlayerTop LDA ScanLine ; 3 CMP M1Pos ; 3 PHP ; 3 CMP M0Pos ; 3 PHP ; 3 PLA ; 4 PLA ; 4 EDIT: And thanks for posting this. I don't really remember all the details but... The code is for turning on and off the missles. The stack must be pointed at ENAM1 and it looks like I wanted it pointed back at ENAM1 again after I was done but I didn't want to destroy the value in the X register. Quote Link to comment Share on other sites More sharing options...
vdub_bobby Posted August 26, 2011 Share Posted August 26, 2011 (edited) What's the point of this? PlayerTop LDA ScanLine ; 3 CMP M1Pos ; 3 PHP ; 3 CMP M0Pos ; 3 PHP ; 3 PLA ; 4 PLA ; 4 EDIT: And thanks for posting this. I don't really remember all the details but... The code is for turning on and off the missles. The stack must be pointed at ENAM1 and it looks like I wanted it pointed back at ENAM1 again after I was done but I didn't want to destroy the value in the X register. Ah, of course! Thanks for the explanation. EDIT: And that probably explains all the places that look something like this... ;waste 16 cycles pla pla pla pla Edited August 26, 2011 by vdub_bobby Quote Link to comment Share on other sites More sharing options...
LouisB Posted September 11, 2011 Share Posted September 11, 2011 Sorry - I'm a 2600 programming newb - how would I compile and run this in an emulator? Maybe you could point me in the right direction? Thanks Quote Link to comment Share on other sites More sharing options...
+Random Terrain Posted September 11, 2011 Share Posted September 11, 2011 (edited) Sorry - I'm a 2600 programming newb - how would I compile and run this in an emulator? Maybe you could point me in the right direction? Thanks If you just want to play the game, go here: http://www.atariage.com/forums/topic/166916-halo-for-the-2600-released-at-cge-download-the-game-here/ If you want to edit the code and compile it, this might be helpful: http://www.randomterrain.com/atari-2600-memories-tutorial-andrew-davie-01.html Edited September 11, 2011 by Random Terrain Quote Link to comment Share on other sites More sharing options...
SmileyDude Posted November 9, 2011 Share Posted November 9, 2011 The indentation is off because it looks ilke there is a mix of hard and soft tabs in the file. It looks like Ed has set his tabs to 8, so if you set your editor's tabs to 8, it should look better. Ed -- thanks for posting this. I hadn't paid much attention due to the fact that I'm admittedly not a big fan of Halo, but my kids are. So I'm going to share this with them in hope of getting them more interested in the older gaming machines like the 2600. Also, I was really impressed that you did this in 4k -- I had assumed that you used bankswitching initially. Great work! Quote Link to comment Share on other sites More sharing options...
gauauu Posted August 21, 2014 Share Posted August 21, 2014 I know it's bad form to resurrect an old thread for no reason, but WOW thank you for posting this. I was trying unsuccessfully to get the 74-cycle HMOVE working, but your example code helped me figure it out. I think I would have given up on it if I didn't have a functional example to work off of. So thanks for posting this, and thanks for making a great game! Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted August 21, 2014 Share Posted August 21, 2014 You could have asked in the developer forum, or did you? Quote Link to comment Share on other sites More sharing options...
gauauu Posted August 21, 2014 Share Posted August 21, 2014 I figured it would be (even worse) bad form to ask a question in the developer forum without searching through the forums for an answer first, which is where I found this (and a number of other threads that helped clarify the issue). 1 Quote Link to comment Share on other sites More sharing options...
CurtisP Posted July 8, 2017 Share Posted July 8, 2017 (edited) I had been wanting to run this on my unmodified Supercharger which requires not accessing ROM locations $FFF8 and $FFF9, but as is the code uses every single byte of the 4K cartridge. Today, I took a look at the source code, and by making a small optimization I was able to trim 5 bytes from the code so that it ends at $FFF5. I changed the end of SetRespx from STA 0,X ; RESPx RTS to STA 0,X ; RESPx STA $10,X ; HMPx RTS then I changed the calls to SetRespx from JSR SetRespx STA HMM1 RTS JSR SetRespx STA HMP0 JSR SetRespx STA HMBL RTS to JMP SetRespx JSR SetRespx JMP SetRespx Edit: After setting NTSC mode in the source and re-assembling, the game runs flawlessly on my 6-switcher using the Supercharger.Thanks for releasing the code, Ed. Edited July 9, 2017 by CurtisP 2 Quote Link to comment Share on other sites More sharing options...
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