I'm having some difficulty getting basic F4 bankswitching working on the Atari Flashback Portable (FBP). I was investigating why Juno First doesn't work on the FBP and immediately hit an issue with the bankswitching. I have written the simplest possible bankswitching test (see attached), but the FBP just hangs when I run it.
I initially assumed that the FBP didn't support F4 bankswitching, but then I encountered this thread with some F4 bankswitch conversions: http://atariage.com/...list/?p=3653305
The F4 versions (e.g. Gyruss and Mr Do's castle) work fine on the FBP.
Does anyone have any theories why my bankswitching code might be choking the FBP?
f4test.zip 9.58KB 53 downloads
Edited by cd-w, Tue Dec 27, 2016 8:10 AM.