PDP-8-E Simulator
PDP-8-E Simulator
2.2

5.0

PDP-8-E Simulator free download for Mac

PDP-8-E Simulator

2.2
08 December 2019

Apple Mac DEC PDP-8/E emulator.

Overview

PDP-8/E Simulator is an emulator for the DEC PDP-8/E minicomputer running on the Apple Mac. The simulated machine is a PDP-8/E with 4K words of memory and optionally a KM8-E Memory Extension (with up to 32K words of memory) and a KE8-E Extended Arithmetic Element. I/O devices are implemented as plugin modules, and plugins for an ASR 33 Console Teletype, an ASR 33 Auxiliary Teletype, a PC8-E High Speed Paper Tape Reader and Punch, a RK8-E Disk Cartridge System, a LP8-E Line Printer and various types of Real Time Clocks are included in the distribution of the simulator. There is also a KC8-EA Programmer´s Console plugin enabling the user to operate the simulator (nearly) like a hardware PDP-8/E, including single step execution on memory cycle level.

What's new in PDP-8-E Simulator

Version 2.2:
  • The PDP-8/E Simulator now has a Real Time Clock plug-in with various clock models and frequencies
  • Improved real time performance (finally without any busy waiting) enables the simulator to pass the MAINDEC-8E-D8AC-PB DK8-E Clocks Diagnostics for all clock frequencies
  • An improved plug-in API enables plug-ins to be written in Swift
  • A Swift version of the Memory Content demo plug-in was added
  • For the RK05 disk drives, now a gauge indicates the last accessed track of the disk and the kind of access (Read, Write or Seek)
  • The ASR-33 no longer replaces "--" with "-" when "Use smart quotes and dashes" is enabled in the "Keyboard" System Preferences
  • Fixed a very rare situation that could cause two PDP-8/E run threads to run simultaneously, causing total confusion
  • Many minor bugs fixed, including typographic errors and visual glitches with Dark Mode
  • Improved compatibility with macOS 10.14 "Mojave" and macOS 10.15 "Catalina"

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5 PDP-8-E Simulator Reviews

Rate this app:

Phoenixdownunder
09 December 2019

Most helpful

This is a really cool piece of fun yet serious software! Brilliant. Ahhh, thems was the days!!
Like (1)
Version 2.2
Phoenixdownunder
09 December 2019
This is a really cool piece of fun yet serious software! Brilliant. Ahhh, thems was the days!!
Like (1)
Version 2.2
arizdave
09 December 2019
Great memories. I am an alumnus of MIT and was one of the "8E" electronic designers working out of the "mill" in Maynard MA in the "60's". All us engineers and DEC President Ken Olsen were ahead "of the curve" back then.
Like
Version 2.2
Whisperquiet
06 November 2015
Just fantastic! Brings back so many memories for me with Digital :o)
Like
Version 2.0.2
Aaron-Elkins
09 December 2014
How cool it is.
Like
Version 2.0
Dylan-Mc
09 December 2014
This is an amazing resource - the PDP-8 was a real computer, but simple enough to comprehend. It was commonly used in "machine structures" curricula while those machines survived. Now they're really hard to find (I see one exactly like pictured here, in very poor condition, on eBay for $5,000), so it's great to have this simulator available. I think I'll work on a lesson plan or two based on this amazing tool. If you're curious about learning more - this hilarious video is a good place to start: http://acad.depauw.edu/dharms_web/pdp11/
Like (1)
Version 2.0
2 answer(s)
arizdave
arizdave
09 December 2014
I was part of the design group of the PDP 8E back in the late 60's :-)
Like (3)
Odysseus
Odysseus
02 March 2015
@Dmgceo Is it true that the PDP-8 (as opposed to the 8E) didn't clock its processor?
Like