GameBoy(Color) Programming

Can someone give me real good manuals for GB(C) programming using assembler. I'm not sure of using C, I mean yeah it's simple, but performance is getting lower.

This probably should go here.

The GB/GBC uses a custom Z80 variant, so go get a Z80 assembler and look up the differences. Many assemblers have specific support for this variant (usually labeled as GBZ80), so that's something to take into account to save effort.

The most popular assemblers are RGBDS (http://otakunozoku.com/rednex-gameboy-d ... nt-system/) and WLA. You can find lots of information on http://gbdev.gg8.se/wiki/articles/Main_Page and the Pan Doc (I'm not linking to it because I'm not sure it'll be the latest version). I think the official English Game Boy development manual was leaked. There are also some guides if you google.

You should probably use RGBDS, just because there's so much more GB code online written for it than WLA.

Don't believe me? Look here. http://devrs.com/gb/asmcode.php#asmmath http://gameboy.mongenel.com/asmschool.html http://cratel.wichita.edu/cratel/ECE238Spr08

Although if it were my choice, WLA would certainly be the assembler of choice, unless you take its bugs into accommodation.