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New SWTPC 6809 Game: Drelbs

TanruNomad

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Joined
Jul 26, 2010
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563
Location
San Diego, CA
Earlier this year I decided to write a port of an arcade-style game called Drelbs from 1983 to the 6809. It's one of my all time favorite games that involves a little creature who has to form squares on a grid while running from the various guards. Once all possible squares are formed, you must jump through the portal doors and rescue your friends. I wrote the entire thing in PL/9 with some inline assembly where needed. It should be run at 1Mhz and requires about 40K of RAM and a 80x24 terminal screen with cursor addressing facilities for proper display.

Link to download: http://tanrunomad.com/swtpc-flex-games/

Enjoy!


 
I added a development notes section to the games page. Hopefully that helps anyone else looking to program the 6809 with FLEX. In my first game I used Introl C which is a decent C Compiler Package that allows you to produce intermediate assembly code files that can be updated. This second game was made with PL/9 and went way smoother due to a much better iteration process (just load, compile, and run). Any inline assembly is compiled at the same time.

Anyone know if there were ever any standard sound cards built for SWTPC. What about gamepads? You have to use the keyboard for now (WASD or numeric keypad).

Thanks!
 
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