On Sun, 28 Oct 2012, Antoine Vignau wrote:
Le dimanche 28 octobre 2012 23:56:17 UTC+1, Antoine Vignau a écrit :Just keep data from tracks $6 to $D, ie. $4000 to $A7FF (13-sec used on a 16-sec disk) and perform a jump to it, that will be sufficient!avI'm wrong, I believe the first area contains sprites and tables! av
My analysis seems to state that just copying 4000-A7FF is enough for the game proper, and lacks only the starting animation. Some data in lower memory is rebuilt - 0400-04FF, 8000-1FFF. It's copied from higher memory.
It would be interesting to add a "GAME OVER PRESS 'S' TO START" after you lose all your lives, but I wouldn't know where to put it, or how to do it efficiently. xD
Also, I think there's a bit of unaccessed "junk code" that looks like part of FPBASIC and the HELLO file from the DOS 3.3 system master...
-uso.