Oh wow, carry is indeed not affected. Good job! And for that I looked at the z80 instruction manual; I think that benryves has finally gotten his good points through my head.

Ughhh.... My key press detection code doesn't work.
(from the main menu)

Code:

I _think_ all of the groups and masks for direct input are correct, so I don't know what's causing the problem.

Well, your final jr nz should just be a jr; if the line above that did not jump, then the z flag must be reset. That is not a correctness fix, though. I checked your key groups/codes; they're all correct. Can we see MenuKeyPressed_Left and _Right?

Sure.

Code:

MenuInput doesn't redraw the main menu.

*epic super gigantic facepalm*
Thanks.

Any time. I hope this fixes things so we can see epic animated main menuness.

The menu's fixed now except for starting the game and the Help image, which is shifted by one bit to the right. Hopefully, after I get this done, I can work more on multiplayer.

YESYESYESYES!!!!!!!!!!!!

This is awesome! I can't wait for some screenshots, and as I'm sure I've repeated many times, I would be happy to help you solve any bugs that are slowing down development. Great job!

The menu's finally finished! But, I can't seem to figure out why LetTheGamesBegin is crashing. :/
http://dl.dropbox.com/u/3601919/CnShoote.asm

Your whole main menu thing is very confusing. It looks like you cut out all of the previous main menu code, but it's still there. Because of the way you cut it out, it looks like you don't call Cn2_Setup. Try moving the jp MainMenu after Start: to right after ld ($890F),a ;show debug info, then delete from Start_FindCalcsRedraw to ugh, this is a mess, it doesn't look like you're handling any of the calculator finding during the main menu...

So, I would put call MainMenu in Start_FindCalcsRedraw, and delete the jp MainMenu after Start?

Well, you shouldn't be calling MainMenu anywhere, because that cuts out all of the existing code that does negotiation of finding other calculators while the main menu is active. Ideally you should thread your main menu rendering code into the existing main menu code.

Would this work? http://www.rafb.me/results/ESmlRl55.html

That's a good start, but on lines 95/97 you're still jumping over all the initialization code.

Those lines are meant to quit the program.

You double-spaced when you rafb.me'd:


Code:

Ok, I fixed that. Maybe the code's crashing because I'm testing it with only one calculator...

No, it was crashing because you were trying to use CALCnet without having had the cn2_setup call executed, I believe. If you can't figure out what's going wrong, I'll take a look later and see if I can't make your main menu code play nice with the menu template I gave you.