How do you get a 3E rom to work with harmony encore

[ZackAttack]

How does the harmony encore know which memory mapper or bank switching scheme to use? I'm trying to run a 3E rom on my harmony and it looks like the wrong mapper is being used. I tried the boulder dash demo which also uses 3E and it worked fine.

 

I have the following in my code to get stella to detect it as 3E.

;Sig for 3e bank switching
	STA $3E
	LDA #$00

It's very possible that this rom doesn't work on a real Atari yet too, but if it were just that I'd expect it to look different.

[+Omegamatrix]

While I don't know what the code is doing for detecting 3E roms I can offer that you can rename the extension to ".3E" to override said detection. The extensions are listed in this manual:

 

 

http://harmony.atariage.com/files/harmony_manual_v2_online.pdf

[ZackAttack]

Ok, renaming to .3E works better. Now I just need to clean up the vblank and scanline counts. Thanks!

[+stephena]

At some point I also want to add this functionality to Stella, so that the file extension can override the built-in autodetection.