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I had a problem like this not too long ago. I think it was because I did not push and pull my registers during NMI since I don't put everything in NMI. Maybe its that?

Just my noobish 2 cents.

Ah, that make a lot more sense! Guess I need to pay better attention at the hardware level. So configuration depends on the size of the ROM chips used and how my banks are arranged in them. Thanks for putting up with me, you guys are awesome. I'll put up some sort of demo when everything comes toget...

Hello, I have a few more questions regarding this mapper I'm trying to use. Now that I have the banks setup with ca65, (huge thanks to you guys) I'm having trouble actually using the mapper. As I understand it, I'm supposed to write to two addresses to configure the mapper: the Command Register ($80...

Hey, that's pretty cool. The board would only use the rom chips, cic, and the AY/YM chip? Would make for a neat music cart.

Gotcha on the rodata segments. Looks like they will be handy in keeping code tidy. 2 megabits sounds like it will be plenty of room. I do have some 27C020's leftover to play with after making a Mother cart. With one big memory segment for chr, all I would need to write would be this?: .segment "...

lidnariq: Yeah, I want to use this mapper mostly for the extended audio. Everything else it can do is a bonus though. Thanks both of you (and Shiru) for helping clarify things. So if I understand correctly, let's say I have a 128K rom chip.(For this project, ill stick with 64k which I think is the m...

Hello, recently I have switched over to ca65, and need a bit of help. My original post can be found on Nintendoage under the username MadnessVX: http://nintendoage.com/forum/messageview.cfm?StartRow=451&catid=22&threadid=103138 but I feel I can get a bit more technical help on this forum! I ...