DPC+ Playfield Troubles [Resolved]

[Cybearg]

I'm noticing trouble with the latest DPC+'s playfield display. Namely, if any playfield data is defined, it becomes a flickery, crazy mess.

 

I have tried code that worked with earlier versions of DPC+ (batari's latest releases) but now create the flickering problem I mentioned.

 

As a comparison, here is the earlier DPC+ version: fixit.bas.bin

 

And here is the latest DPC+ version with no code changes except moving a few declarations into bank 2: fixit_dpcnew.bas.bin

 

I get the same effect every time I try to do anything with DPC+ and a playfield.

 

Is this just me? Any fixes available?

Edited September 10, 2014 by Cybearg

[RevEng]

People have created games with playfields with my version, and I use a test suite with a playfield scrolling test; if its a bug then it's not being triggered in those cases.

 

Its a bit hard to say if its a bug or if you're unintentionally steering it wrong without the source.

 

Do the DPC+ programs in the samples directory compile and work fine for you?

[Cybearg]

Hm... They do seem to compile fine. Weird, then. I'm not really doing anything out of the ordinary, just adding a playfield to a mostly blank game.

 

If you're willing, I'll send you the problematic .bas file by PM and maybe you can identify what I'm overlooking.

[RevEng]

Sure, shoot it my way.

[Cybearg]

Turns out the problem was that I had some modified bB files in my project directory, namely score_graphics.asm. I just renamed that so it wouldn't get used in the compiling and all was well.