4am

@a2_4am

to (de)protect and (pre)serve

I live on track $00.
archive.org/details/apple_…
Joined February 2014
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  1. Pinned Tweet
    May 14

    Passport is a verification and copy program for Apple II floppy disks. v20170514 sports a huge list of improvements:

    2 replies 6 retweets 17 likes
  2. 5 hours ago

    Tiger's Tales Text:

    1 reply
  3. 6 hours ago

    MECC-A817 Graphing v1.2 Passport log:

    3 retweets 2 likes
  4. 6 hours ago
    Replying to

    The inventor of the throat lozenge died yesterday. He'll be buried today with no coffin.

    2 replies 2 retweets 9 likes
  5. 7 hours ago
    Replying to

    Throats lozenge

    1 reply 1 like
  6. 7 hours ago
    Replying to

    Bits copier

    3 replies 1 like
  7. 8 hours ago

    Bootsloader

    Today in the editorial email: another "teethpaste" evangelist. You start calling it "feetball" and "fingers food" and we'll talk.
    1 reply 8 likes
  8. Retweeted
    Jun 7

    Didn't see this in the usual places, so: Add & Subtract with ALF, © 1988 Vision Software, Inc. unprotected DOS 3.3

    3 replies 3 retweets 9 likes
  9. Retweeted
    Jun 8

    Applesauce is successfully generating disk images based solely on the timing between flux transitions. Refactoring the analysis code now.

    1 retweet 7 likes
  10. Retweeted
    Jun 7

    A load of new 8-bit software on 3.5" disk archive...most of which had not been archived in any previous format.

    1 reply 4 retweets 6 likes
  11. Retweeted
    Jun 6

    Proudly presenting my new Podcast about security research and the researchers behind it.

    5 replies 29 retweets 61 likes
  12. Jun 6

    . Did you write the bootloader for International Gran Prix? It was in the box you sent, but not a Broderbund title.

    1 reply 1 like
  13. Jun 6
    Replying to

    Late-stage copy protection (1988+) was mostly just "baby, don't hurt me" before the platform collapsed altogether.

    3 replies 5 retweets 14 likes
  14. Jun 6
    Replying to

    You can literally search for "4C 00 C6" (JMP to reboot) and NOP it out to defeat the protection. It'll fall through to the success path.

    2 replies 4 retweets 13 likes
  15. Jun 6
    Replying to

    Passport didn't recognize it, but the bootloader loads an extra sector that contains a minimal FBFF check and reboots if it fails.

    1 reply 2 retweets 3 likes
  16. Retweeted
    Jun 5
    Replying to

    That would be another one of the titles I also worked on.

    1 retweet 3 likes
  17. Jun 5

    4 retweets 4 likes
  18. Jun 5

    2 replies 1 retweet 9 likes
  19. Jun 5

    1 reply 2 retweets 4 likes
  20. Jun 5

    3 likes
  21. Jun 5

    1 retweet 4 likes

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