nesdev.org

Owww. tks, this code works fine... now I have another problem, when I try to change my background screen in run time, the screen get's crazy, I don't undestand why... For exemple, I load the first screen with this code... nice, works perfect, but how I change this entire screen for another???

Nice... but this toll is just to help me draw a screen with my tiles and create a .db ... maybe I improve this to create a attribute (but first I need to undestand how it works in ASM).

Hi guys, I'm new here, and I'm new in NES ASM program too, I really had many dificult to unsderstand how I draw a background into a toll and put it in my code, than I create a simple screen toll, when we enter with a bitmap (create from yy chr), and draw your screen beside, after than, you click in ...