Sunday, August 1, 2010

PC->NES Speed improvement!






So I've been wrestling with the timing of the transfer tool. The Arduino end is a huge unknown since I can't get access to the underlying assembly. The good news is I figured out what was blowing the timing. I had 2 bytes being sent each time - pretty much like a PISO (parallel in serial out) shift register. The way I was doing it originally was

PORTC = (byteToSend1 >> bitIndex);

Which was fine, but in the worst case it would have to shift the value 15 times.
Instead I made the change persistant:

byteToSend1 = (byteToSend1 >> 1);
PORTC = (byteToSend1);

Which ensures each bit only needs to be shifted once!

37 comments:

  1. Absolutely fantastic posting! Lots of useful information and inspiration, both of which we all need!Relay appreciate your work.
    raja poker

    ReplyDelete
  2. this post is really amazing and the the information is brilliant.

    Escorts Service in Goa

    Delhi Escort

    ReplyDelete
  3. I dunno how to say, but this post so helpfully
    Agen Bola Terpercaya

    ReplyDelete
  4. This is a very interesting post and thanks for this informative post.
    VIP Delhi Escorts Service
    Escorts Service in Delhi

    ReplyDelete
  5. Hi, I have been looking for some straight alternatives regarding it almost three times. You affected me with a lot indeed and analyzing this your website. There is many new and useful details on this subject. Well job and keep it up.
    Escorts in Gurgaon |
    Escorts in Gurgaon
    Gurgaon Escorts Service |
    Escorts in Delhi |
    Gurgaon Escorts |
    Female Escorts in Gurgaon |
    Gurgaon Escorts Service |
    Female Escorts in Dwarka

    ReplyDelete
  6. Hi I loved reading your post and additionally have recommended this to my pals and family. Your site is exceptional and I will be really going to keep on to urge it to my buddies.
    Book Me for Independent Service:-
    Lucknow Escorts
    Agra Escorts
    Bangalore Escorts
    Delhi Escort
    Goa Escort
    Jaipur Escorts
    Haldwani Escorts
    Gurgaon Escorts
    Mumbai Escorts

    ReplyDelete
  7. I really worth discussing this place that is outstanding. Keep your occupations upwards.
    Bangalore Escorts
    Nainital Escort
    Jaipur Escorts
    Goa Escorts
    Goa Escort
    Colaba Escorts

    ReplyDelete
  8. I am really impressed this article writer such a great writer nice post...
    https://www.delhimaleescorts.jimdo.com/

    ReplyDelete
  9. Nice article to read this valuable stuff that is awesome to explore for more information. Goa Call Girl

    ReplyDelete
  10. Very nice and always successful.
    This is a very good article.
    I’m waiting for you the other article.

    Misteri Dunia

    interesting articles and this is my first first reading a very interesting article thanks for this article that fits with the theme news.

    Prediksi Togel Hongkong

    ReplyDelete
  11. Very nice and always successful.
    This is a very good article.
    I’m waiting for you the other article.

    Konspirasi Hitam

    interesting articles and this is my first.
    first reading a very interesting article.
    thanks for this article that fits with the theme news.

    Prediksi Togel Jitu Pasti Tepat

    ReplyDelete
  12. Greetings! Very assistance in this particular post! It’s the little changes that produce the most important changes. Thanks for sharing. Roshni Khanna | escort in dwarka | aerocity escorts | gurugram escorts service | female escorts in aerocity | independent escorts in gurgaon | delhi escorts

    ReplyDelete

  13. This is really a pleasant and useful, containing all data furthermore greatly affect the new innovation. Much obliged for sharing it,
    Avriq
    Avriq India
    AVRiQ - Data Recovery<
    AVRiQ Crunchbase
    Avriq Services
    Avriq Us

    ReplyDelete
  14. Hi, I want to tell the author of this article that your writing skills are awesome please post and share more interesting articles here.
    Karol Bagh Escorts
    https://www.ahua.in/call-girls-in-karol-bagh.html

    ReplyDelete
  15. Nice And Informative Website. Please Keep Continue Such Kind Of Effort. I Shared Your Post With My Friends Also. I Run My Independent Juhu Escorts Service. I Provide You High Class Mumbai Models And Beautiful Mumbai Escort Girls. We Are Available To Serve You 24 X 7. For Booking Contact With Priya Singh Ph- 09987215552 My website is - http://www.escortagencyinmumbai.com/juhu-escorts/

    ReplyDelete
  16. Your Website Is Nice And Informative. Please Keep Continue Such Kind Of Good Effort. My Name Is Ritu Sharma. I Run My Own Independent Escort Service In Mumbai.
    I Provide You VIP And Independent Escort Service In Low Cost. You Can Avail My Mumbai Escort Service At Your Own Place Or In Hotel.
    I Am Available To Serve You 24 X 7. Contact Me +91 9OO4OO9481
    Visit My Website- http://www.escortservicemumbai.net/escort-service-in-mumbai/

    ReplyDelete
  17. Hello guys!! I know you want to put your lips on my boobs. If you want to get masturbated by my soft hand then you can hire me easily. simple visit our websites

    Call Girls in Bangalore

    Call Girls in Lucknow

    Call Girls in Gurgaon

    Call Girls in Faridabad

    Escort services in Faridabad

    Escort services in Faridabad

    Escort in Faridabad

    Escort service in Faridabad
    ===========================

    ReplyDelete
  18. If you are in Jaipur and need beautiful Call Girls in Jaipur or white skin Call Girls in Jaipur then you can simply book call girls in Jaipur from one of the best escort agency named Call Girls in Jaipur. It is No.1 premier escort agency and provide both incall or outcall facility to clients.Please click on the following link to check the official websites Call Girls in Jaipur

    ReplyDelete
  19. Thanks for your post visit our website for
    Call girls in Noida | Call girls in Gurgaon | Call girls in Cuttack | Call girls in Puri | Call girls in Bhubneshwar

    Aamazing post..I really liked it..You can hire call gir directly from following links
    Call Girl in Noida | Call Girl in Gurgaon | Call Girl in Cuttack | Call Girl in Puri | Call Girl in Bhubneshwar

    I loved your article very much...You can also visit mine from folowing links
    Escorts in Noida | Escorts in Gurgaon | Escorts in Cuttack | Escorts in Puri | Escorts in Bhubneshwar

    Very nice...I really enjoyed your work...
    Noida Call Girls | Gurgaon Call Girls | Cuttack Call Girls | Puri Call Girls | Bhubneshwar Call Girls

    I really want to appreciate your writing skills..You can also check out mine for
    Noida Call Girl | Gurgaon Call Girl | Cuttack Call Girl | Puri Call Girl | Bhubneshwar Call Girl

    Great stuffs!! Check mine for
    Noida Escorts | Gurgaon Escorts | Cuttack Escorts | Puri Escorts | Bhubneshwar Escorts



    ReplyDelete