Search found 214 matches

by Janka
Sun Sep 23, 2012 11:52 pm
Forum: Programming & Software
Topic: Sound garbage with small demo
Replies: 34
Views: 7620

Re: Sound garbage with small demo

Well, these *are* the actual sources. Hex file attached. It should play the tune from the Dr. Mario game, but all it produces is a fast "rap, rap, rap, rap", like a small sound sample is always repeated. It depends on VRAM contents, too, when I clear VRAM, rapping turns into yelling.
by Janka
Sun Sep 23, 2012 10:38 pm
Forum: Programming & Software
Topic: Sound garbage with small demo
Replies: 34
Views: 7620

Sound garbage with small demo

Because my work-in-progress produces sound garbage by itself, I think I'm missing some initialisation. I reduced it to a simple example, taking tune and patches from the Dr Mario example game. I use the latest kernel from svn trunk, which works fine with the games I compiled myself. #include <avr/io...
by Janka
Sat Sep 22, 2012 12:56 pm
Forum: Programming & Software
Topic: Mode 3 maximum tile count
Replies: 3
Views: 1688

Re: Mode 3 maximum tile count

Sorry, my confusion hasn't ended. What I currently think mode 3 works is as follows, please correct me where I'm wrong: * Screen RAM is 32x32 (30x28 viewport), with 8-Bit indices to tiles. * There is some configureable border in tile index where ROM tile indices end and RAM tile indices start. * Vid...
by Janka
Fri Sep 21, 2012 10:58 pm
Forum: Programming & Software
Topic: Mode 3 maximum tile count
Replies: 3
Views: 1688

Mode 3 maximum tile count

Hi, I'm new to uzebox and currently doing some artwork for an upcoming game. What I haven't found out from the documentation is how many different tiles are possible in video mode 3 simultaneously. 256? Or 256 for background plus RAMtiles for sprites? Or another number + RAMtiles for sprites? How do...