Sunday, 24 April 2016

Feeling shifty...

Quick update. Splash animations both working. Hardware shift register emulated and working (using Knight Lore tables verbatim). Not much overhead doing it on the 6809, especially considering the shift value is only written once per sprite.

Working through the code that initialises the game for the demo mode. That will likely entail writing almost all the the remaining code once the demo is fully working. I'm not quite to the point where the rack (aliens) is displayed. I'll post some eye candy once I'm there.

On a side note; Brian White has confirmed the Lode Runner Demo cartridge image runs on a stock 128K Coco3. And Knight Lore has been seen - by some at least - at CocoFEST. It'll be time to whip those into shape for cartridge production in the not-too-distant future!

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