[Coco] A Great Old-Timey Game-Programming Hack - Tom Moertel’s Blog

[Nick Marentes]

Allen Huffman <alsplace at ...> writes:

> 
>
http://blog.moertel.com/posts/2013-12-14-great-old-timey-game-programming-hack.html
> 
> A discussion of techniques used to speed up a 6809 graphical copy loop. He
was working on a CoCo 3 on a friend's
> game, but didn't reveal what the game was. A very good read with plenty of
example 6809 code on how he sped up
> the block copies quite a bit.


A very good article. And he nailed just about every speed-up trick from
unrolling loops to utilising the stack.

It's amazing how much performance can be had when the rules are broken and
the inventiveness of the programmer is left to run free.

I wonder what the game was that he was working on? He seemed tight lipped on
this and who the original programmer was.

Nick