Category Archives: Assembly

The Old XOR Switcheroo

Posted on 2023-04-24 by M. Eric Carr

Swap two binary integers, without using a temporary variable. Not magic — XOR. Continue reading →

Posted in Algorithms, Assembly, Coding, Digital, Math | Tagged , , , | Leave a comment

Programming the DrACo/Z80

Posted on 2017-05-28 by M. Eric Carr

Instructions on how to program the DrACo/Z80, including dealing with the weird Z80 quirks… Continue reading →

Posted in Assembly, Coding, Digital, DrACo/Z80, Drexel, EET325, Electronics, HOW-TO | Leave a comment

Apollo 11 source code made public

Posted on 2016-07-10 by M. Eric Carr

NASA has just released the Apollo program source code on Github. Continue reading →

Posted in Assembly, Aviation, Coding, Current Events, Design, Digital, Digital Citizenship, Nostalgia | Leave a comment

The Making of Pitfall

Posted on 2013-06-28 by M. Eric Carr

The story behind the making of Activision’s Pitfall on the Atari 2600 is fascinating. Here is true programming genius! Continue reading →

Posted in Assembly, Coding, Digital, Nostalgia | Leave a comment