Program doesn't work

[FerdinandoPH]

Rom works fine on wabbitemu (it's a ti 84 se rom), but I open it on this emulator and this happens: I can exit pressing esc, but that's about it. I'm using a ti nspire cx ii cas with ndless 5.3

[adriweb]

pinging @Vogtinator just in case

[Vogtinator]

Yeah, this looks like it's the usual HW-W-like LCD format mismatch. The issue with the CX II LCD in particular is that there's extra HW which performs rotation, so when writing to the existing framebuffer it's like a 320x240 one, but when changing to a different location it's actually 240x320... That unfortunately needs specific code to handle the is_cx2 case here.

[FerdinandoPH]

Is this project maintained?

[adriweb]

No (read the author profile bio...), a fork would be needed to update the code to use the latest SDK stuff

[Noahmatada]

There is already an is_hww clause in the lcd code that seems to rotate the framebuffer. How would an is-cx2 differ from this, and what would need to be done to implement it?

[Vogtinator]

There is already an is_hww clause in the lcd code that seems to rotate the framebuffer. How would an is-cx2 differ from this, and what would need to be done to implement it?

IIRC it's almost the same. It might have to do an X/Y flip in addition to the 240x320 conversion, but I'm not entirely sure.

You could try

	if(is_hww) {
		return x * 240 + y;
	} else if(is_cx2) {
                return (319-x) * 240 + 239 - y;
        } else {
		return y * 320 + x;
	}