Search found 3 matches

by IceAIM
Fri Jul 28, 2006 3:48 am
Forum: NESdev
Topic: Help me figure out some basic 6502 NES asm code
Replies: 9
Views: 5921

The stack at $100-$1ff isn't only universal for the Nintendo Entertainement System, but for any system running based on a 6502 CPU. Excellent, thank you. This is a great board. I'm going to read up some more docs on the NES and the 6502 to better understand the architecture. Should I use NESten for...
by IceAIM
Fri Jul 28, 2006 2:24 am
Forum: NESdev
Topic: Help me figure out some basic 6502 NES asm code
Replies: 9
Views: 5921

Okay guys, I got another question that's related to the following tutorial: http://desnet.fobby.net/doc/fceud_tutor1.txt Pretty much I understand all the asm code in the debugger, but I'm not clear on the following statement: I loaded NESten (currently has a better cheat search than FCEUd :P) and di...
by IceAIM
Mon Jul 24, 2006 10:29 am
Forum: NESdev
Topic: Help me figure out some basic 6502 NES asm code
Replies: 9
Views: 5921

Help me figure out some basic 6502 NES asm code

Okay here's the code: (I'm learning to program asm for the NES) code: lda #$3F ; these 4 lines tell $2006 that we sta $2006 ; want the stuff we load $2007 with lda #$00 ; to start at memory location $3F00 sta $2006 ; . Note that since we can only store a byte at a time we store twice ; to get the wh...