PDP-8/E Simulator Changelog

What's new in PDP-8/E Simulator 2.0.2

Nov 6, 2015
  • Some visual adjustments for OS X 10.11 “El Capitan”, especially for the memory view and the memory inspector of the CPU window. Added “Scroll to Program Counter” to the context menu of the memory view.

New in PDP-8/E Simulator 2.0.1 (Mar 3, 2015)

  • The ASR 33 Teletype now correctly recognizes the ESC key as ALTMODE. Additionally, three very minor visual glitches were fixed.

New in PDP-8/E Simulator 2.0 (Dec 9, 2014)

  • Exactly 20 years after the initial beta release 1.0, the final version 2.0 of PDP-8/E Simulator 2.0 is available. It adds a PC8-E Paper Tape Reader and Punch and a lot of fine tuning for OS X 10.10 “Yosemite”. The download contains a set of PDP-8 software and the source code for the simulator.

New in PDP-8/E Simulator 2.0.d3 Beta (Dec 9, 2014)

  • Update of the Developer Preview with bug fixes and OS X 10.9 “Mavericks” and OS X 10.10 “Yosemite” support. New application icon. Example project for third party plugins added. The ASR 33 now successfully loads EduSystem 20 BASIC due to improved timing in the tape reader.

New in PDP-8/E Simulator 2.0.d2 Beta (Dec 9, 2014)

  • Update of the Developer Preview with bug fixes and Mac OS X 10.8 “Mountain Lion” support.

New in PDP-8/E Simulator 2.0.d1 Beta (Dec 9, 2014)

  • Update of the Developer Preview with bug fixes and Mac OS X 10.7 “Lion” support.

New in PDP-8/E Simulator 2.0.d0 Beta (Apr 7, 2010)

  • Developer Preview of the Cocoa based reimplementation of the PDP-8/E Simulator.

New in PDP-8/E Simulator 1.5.1 (Jun 2, 2008)

  • The (probably never used) opcode 7233 (CLA CML IAC RTR) now correctly set L'AC to 0'6000 with L=0 and to 0'4000 with L=1 (before, L'AC was wrongly set to 0'3000 resp. 0'1000 due to missing parenthesis around the shift in i7233()).
  • In file dialogs, now Mac OS X application bundles are recognized, and the user can choose a Mac OS X application in the preferences for viewing text and log files.
  • The keyboard shortcut command-option-M for the �Minimize All Windows� item in the Windows menu is now functional.
  • To conform to Apples Scripting Interface Guidelines (Technote 2106), the name of the real time clock types in the AppleScript terminology of the Real Time Clock plugin where changed, e. g. now �DK8EA 100 Hz� instead of �DK8EA_100Hz�.
  • To avoid scrolling anomalies in memory inspectors, the inspector window now can only be resized to an even number of content lines when it displays a two line format.
  • In the online help, the homepage URL of the PDP-8/E Simulator was updated.