+atari2600land Posted March 4, 2010 Share Posted March 4, 2010 All I want to do is make the screen be blue in an NES emulator. It won't let me. Can someone please tell me what I'm doing wrong? Basically what I did is copy a whole bunch of code and put it in an ASM file. Since I have no idea what I'm doing, I'd really appreciate it if there is a certain thing I have to type to make the stupid thing to work, tell me what it is. Yes, I know it has to be an ASM file, but it won't let me upload ASM files. helloworld.txt Quote Link to comment Share on other sites More sharing options...
+atari2600land Posted March 4, 2010 Author Share Posted March 4, 2010 OK, after finding a complete ASM file for an NES game, I finally got something to work. Only problem is, it stops putting stuff on the screen. Apparently lda can only be the same number 8 times? How did they make NES title screens that take up the whole screen? I am so lost. Attached is the stuff I used to make what's in the picture (part of which will not show for some reason.) zoopnes.zip Quote Link to comment Share on other sites More sharing options...
Multijointed Monster Maker Posted March 5, 2010 Share Posted March 5, 2010 Idk, I've had similar problems with the Snes before. What reg were you LDAing from? Quote Link to comment Share on other sites More sharing options...
+atari2600land Posted March 5, 2010 Author Share Posted March 5, 2010 I found out what the problem was. You're only allowed 8 sprites per line on the NES. After trying to get the same picture as a background, after many hours I just finally gave up because it is too frustrating! Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted March 5, 2010 Share Posted March 5, 2010 Copying random assembly language routines when you don't know what they do isn't going to get you very far. You need to learn assembly language and invest some time reading about what the NES chips can do and are capable of otherwise its going to be a frustrating and fruitless experience (as you've already found out). Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted March 8, 2010 Share Posted March 8, 2010 (edited) Some examples on this thread may help you. Edited March 8, 2010 by Wrathchild Quote Link to comment Share on other sites More sharing options...
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