Atari 7800 faster DL processing???

[Ecernosoft]

Ok, so I've had an issue with my CPU time and was wondering if any of you 7800 pro coders knew a way to do something about it:

CPU clock cycles used by things:

Maria DMA

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Just making sprites

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Code

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I was wondering, if the WRITEMODE byte was 0, to skip the process? (Basically, a beq to the end of sprite code or to the code for fetching new sprite) so that "Invisible" sprites wouldn't be drawn to the screen. This would also fix the glitch where in my game, stuff seems to be dissapearing at the top of the screen for no reason.

[Ecernosoft]

Actually, I changed it so if the YPOS was 0, the game would skip the SPRITE draw routine for that sprite. Here is the source code!

 

Fastsprites.a

[Ecernosoft]

OOPS!! Yoy must set the DLends to 4 (because of the background processing routine!) so, here is the new source code for the background processing routine and the FAST sprite kernal:

 

Fastsprites (1).a