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| Source Code of Several Atari 7800 Games released http://www.retrosoftware.co.uk/forum/viewtopic.php?f=11&t=297 |
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| Author: | DaveF [ Sat Jul 04, 2009 10:21 pm ] |
| Post subject: | Source Code of Several Atari 7800 Games released |
Hey A friend sent me this link, to Source Code of Several Atari 7800 Games Released. Might make for some interesting reading. There's also a good roundup of Atari 7800 games here |
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| Author: | GregC [ Sun Jul 05, 2009 11:55 am ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
Thanks for the pointer Dave. Download the 7800 PAL OS and look at MARIAOS.S. The code to synchronise with the video chip (SYNC:, etc.) is fascinating and incredibly hackish. The C* folks don't know what they're missing  Emulator devs may be mildly interested in the CPU instruction tests underneath.--Greg |
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| Author: | SteveO [ Sun Jul 05, 2009 7:47 pm ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
Wow,nice heads up Dave, cheers 
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| Author: | DaveM [ Mon Aug 03, 2009 12:47 pm ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
Great find, Dave!  I notice it includes a download for the MS PACMAN source. This was actually one of my suggestions in the New Ideas category (well, MS SNAPPER was!). Would the source for the Atari version be of any use in terms of doing a BBC/Electron conversion? I think old Atari's used a customised version of the 6502, didn't they? |
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| Author: | MurrayCakaMuzer [ Mon Aug 03, 2009 12:50 pm ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
According to wikipedia, the 7800 has a custom 6502C EDIT: Running at 1.79MHz |
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| Author: | TMR [ Tue Aug 04, 2009 1:04 am ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
The game logic would possibly help (although i don't know how accurate it is at that level since it was probably written without access to the original code) but the 7800 has a hardware sprite system so actual display code'd be far less use. |
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| Author: | DaveM [ Wed Aug 05, 2009 11:15 pm ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
Maybe MS PACMAN/MS SNAPPER could be Murray's next challenge, once JSM is done and dusted? 
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| Author: | DaveF [ Thu Aug 06, 2009 9:27 am ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
DaveM wrote: Maybe MS PACMAN/MS SNAPPER could be Murray's next challenge, once JSM is done and dusted? Which will be end of this week if his current work rate is anything to go by
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| Author: | DaveM [ Thu Aug 06, 2009 9:34 am ] |
| Post subject: | Re: Source Code of Several Atari 7800 Games released |
LOL! 
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