6502.org Forum Projects Code Documents Tools Forum
It is currently Fri Nov 22, 2024 9:37 am

View unanswered posts | View active topics


Board index » 6502.org Users Forum » General Discussions

All times are UTC




Post new topic Reply to topic  Page 2 of 2
  [ 16 posts ]  Go to page Previous  1, 2
  Previous topic | Next topic 
Author Message
kc5tja
 Post subject:
PostPosted: Sat Aug 22, 2009 2:24 am 
Offline

Joined: Sat Jan 04, 2003 10:03 pm
Posts: 1706
Quote:
To the "edge detection" poster. You can't do edge detection on the lines, so timing is all you have.


Never tell a hardware hacker something isn't possible.

You absolutely can do edge detection in software.

Code:
1$: LDA portA
    AND #bitmask
    BEQ 1$
    ; edge 1 happened here.
2$: LDA portA
    AND #bitmask
    BNE 2$
    ; edge 2 happened here.


I've used this style of synchronization numerous times and with good effect.
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 2 of 2
  [ 16 posts ]  Go to page Previous  1, 2

Board index » 6502.org Users Forum » General Discussions

All times are UTC


Who is online

Users browsing this forum: No registered users and 21 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
6502.org is an ongoing project by Mike Naberezny and contributors.