Search found 67 matches

by bleubleu
Wed Apr 11, 2018 6:00 pm
Forum: NESdev
Topic: Advice for artifact free 4-way scrolling
Replies: 92
Views: 13874

Re: Advice for artifact free 4-way scrolling

Hey guys. Sorry to resurrect my own thread. I'm doing the black bars at the top and bottom. Jurassic park does it by bank switching. One thing i overlooked is that they assume that every palette has a black color at the same location. I think this is a big constrain on colors, so I would like to avo...
by bleubleu
Mon Apr 09, 2018 6:15 pm
Forum: NESdev
Topic: Mesen Debugger - Feedback/Feature Requests? (2018 edition)
Replies: 169
Views: 85930

Re: Mesen Debugger - Feedback/Feature Requests? (2018 editi

Wow thanks!

I'll give it a shot. Coffee donation incoming!

-Mat
by bleubleu
Sun Apr 08, 2018 4:42 pm
Forum: NESdev
Topic: Mesen Debugger - Feedback/Feature Requests? (2018 edition)
Replies: 169
Views: 85930

Re: Mesen Debugger - Feedback/Feature Requests? (2018 editi

Hi. Im new to nesdev so apologies if I havent read the whole thread. Here are a few ideas I came up with from using Mesen for about a month (its awesome btw). It would be nice if CTRL+R worked when the focus in on the debugger. I often set the game in a specific state to debug something and resettin...
by bleubleu
Sun Apr 08, 2018 4:33 pm
Forum: NESdev
Topic: Advice for artifact free 4-way scrolling
Replies: 92
Views: 13874

Re: Advice for artifact free 4-way scrolling

All right guys. Thanks to all your advice I got my NMI running in < 1820 cycles all the times, even with crazy diagonal updates. I unrolled all column loops, optimized the row (tile/att) updates, moved some stuff on ZP and everything works. My palette update loop wasn't unrolled, and not on ZP... sh...
by bleubleu
Sun Apr 08, 2018 12:49 pm
Forum: NESdev
Topic: Advice for artifact free 4-way scrolling
Replies: 92
Views: 13874

Re: Advice for artifact free 4-way scrolling

You should use $2000.4 to your advantage when updating the nametable column; when updating an attribute table column this is more limited but you can still use this to your advantage knowing it will skip 3 rows, but you can still use 4 bulks of 2 bytes instead of 8 bulks of 1 byte. Right now i spli...
by bleubleu
Sun Apr 08, 2018 12:04 pm
Forum: NESdev
Topic: Advice for artifact free 4-way scrolling
Replies: 92
Views: 13874

Re: Advice for artifact free 4-way scrolling

Hi! First of all, thanks everyone for the advice. I'm not going to reply to everyone but i did read the whole thing. I managed to make the whole thing work, the code is somewhat elegant, i think. One thing I would recommend anyone doing that kind of thing is to take a few hours to create yourself a ...
by bleubleu
Wed Apr 04, 2018 7:44 pm
Forum: NESdev
Topic: Advice for artifact free 4-way scrolling
Replies: 92
Views: 13874

Advice for artifact free 4-way scrolling

Hi. I'm trying to implement clean 4-way scrolling. Jurassic Park is a good example of this working really well. Im planning to also hide the top/bottom 8 pixels, but that's note done yet. I'm getting really close to a bug-free version of it working, but now my code has become kind of a mess. When I ...