Search found 6 matches

by Starfoxes
Tue Aug 13, 2019 9:26 pm
Forum: NESdev
Topic: PPU - Why Background Reset Issue?
Replies: 12
Views: 8028

Re: PPU - Why Background Reset Issue?

My data was initially at bank $A000; it worked when I moved it to $C000. :lol: But how did this arrangement made a difference? My guess from looking at the header is because it's a 16kB program using MMC3 mapper. In that case you better stick to $C000+. Unless there are mapper writes in there, and ...
by Starfoxes
Mon Aug 12, 2019 7:55 pm
Forum: NESdev
Topic: PPU - Why Background Reset Issue?
Replies: 12
Views: 8028

Re: PPU - Why Background Reset Issue?

Will check it out. Thanks for the link.
by Starfoxes
Mon Aug 12, 2019 12:55 am
Forum: NESdev
Topic: PPU - Why Background Reset Issue?
Replies: 12
Views: 8028

Re: PPU - Why Background Reset Issue?

Also, This is a pretty large chunk of code. It really don't seem practical for any individual could go through all of this especially for the macros that was written for I to mostly understand. I was expecting an answer like a hardware bug or something. But no worries, I will take the debugger appro...
by Starfoxes
Mon Aug 12, 2019 12:25 am
Forum: NESdev
Topic: PPU - Why Background Reset Issue?
Replies: 12
Views: 8028

Re: PPU - Why Background Reset Issue?

Oh, I realize now that some things from the main file were omitted. Well, I don't see a full name table wipe anywhere before the text is displayed, so I don't know if it's been omitted as well or if it's really missing. The problem with posting partial code because you think certain parts are "...
by Starfoxes
Mon Aug 12, 2019 12:01 am
Forum: NESdev
Topic: PPU - Why Background Reset Issue?
Replies: 12
Views: 8028

Re: PPU - Why Background Reset Issue?

Work out what's going on in an emulator with a good debugger like Mesen. You can find out what's happening or not happening. You will eventually find the part where the PPU begins drawing the erroneous data. I suspect several things, but trying to cover them all is not particularly a good use of my...
by Starfoxes
Sun Aug 11, 2019 6:43 pm
Forum: NESdev
Topic: PPU - Why Background Reset Issue?
Replies: 12
Views: 8028

PPU - Why Background Reset Issue?

Hello, I would appreciate any solutions to this. I only implemented a nametable update. It basically writes a background tile to $2007 every 3 frames; to appear as animated text typing. All code is in NMI and it works completly fine. It resets fine when the animation is done but if it was RESET some...