Search found 18 matches

by Nate5700
Sun Jun 25, 2017 4:09 pm
Forum: Newbie Help Center
Topic: Indirect Indexed Addressing in NESASM3
Replies: 7
Views: 2458

Re: Indirect Indexed Addressing in NESASM3

Holy crap, it totally worked. Screen scrolls and the story message comes up!

Thanks a ton! I wouldn't have even thought of trying to use Y instead. Is that a 6502 thing or just a NESASM3 peculiarity?
by Nate5700
Sun Jun 25, 2017 3:53 pm
Forum: Newbie Help Center
Topic: Indirect Indexed Addressing in NESASM3
Replies: 7
Views: 2458

Re: Indirect Indexed Addressing in NESASM3

Thanks for the prompt reply! I guess I should have mentioned that I did some searching for an answer and came across the square bracket thing. But if I do lda [index_low], x the assembler throws an error. "Incorrect addressing mode!" So I'm still not sure how to go about this. Is there som...
by Nate5700
Sun Jun 25, 2017 3:48 pm
Forum: Newbie Help Center
Topic: Indirect Indexed Addressing in NESASM3
Replies: 7
Views: 2458

Indirect Indexed Addressing in NESASM3

Hello all, noob here. I've been working on a program (which hopefully will be a game someday) in NESASM3 and I'm running into a problem. I'm trying to load new data into the nametable while scrolling vertically (with vertical mirroring, which may be part of the problem, but the idea is to be able to...