nesdev.org

I see. Well, that does make sense then. I was unaware the NES had special "watch out for these writes and then start doing things" instructions beyond the usually init stuff. The code I got from above came from some asm code this guy wrote, and while much of it makes sense, it uses "d...

lda #$01
sta $4016
lda #$00
sta $4016

Would the above code simply write $0001 to address $4016, and then instantly replace it with $0000? What purpose could that serve?

Or am I missing something?