[stella] Supercharger RPG bare beginnings - request for help

[bob.montgomery at thomson.com]

Hi Chris,

>I wrote the attached code some time ago to display a scrolling maze.
>I don't think it will directly be useful to you as it was one of my
>first 2600 projects and the code is not particularly high quality, but
>the scrolling is very fluid and it might give you some ideas.   I
>ultimately abandoned it as there wasn't sufficient memory on a regular
>2600 to display enough tiles (currently there are just 6x5 tiles on
>screen), though this shouldn't be such a problem with the SC.
>Horizontal scrolling is achieved by ror/rol-ing the tile data across
>the screen, and vertical scrolling is accomplished by changing the
>starting address of the screen (using a circular buffer).

Thanks for sharing this; I have the binary already but I haven't seen
the code before.  This looks fairly similar to what I'm doing in the
Metroid WIP I'm half-heartedly working on.

Thanks,

-bob