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PDP-8-E Simulator
PDP-8-E Simulator
5.0
0.0
PDP-8-E Simulator free download for Mac

PDP-8-E Simulator

Version 2.5

Apple Mac DEC PDP-8/E emulator.

5.0
Based on 5 user ratesRead reviews & comments
Free
Absolutely Free

PDP-8-E Simulator 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 version 2.5

Updated on Oct 04 2022

  • The PDP-8/E Simulator now has a VC8-E Point Plot Display System plug-in with two VR20 oscilloscopes (actually there are two versions of the plug-in with the default I/O address 05 and the alternative I/O address 15), so it can run Spacewar.
  • See quickstart for instructions.
  • Bug fixes: The I/O flags bit array (pdp8→IOFLAGS) is now an atomic variable to avoid sporadic loss of done flags when they are set simultaneously by two devices from different threads, e. g. the VC8-E and the RTC. Small adjustments for macOS 13 “Ventura” (esp. the Preferences window no longer grows with every switch of a preferences pane) and other minor bug fixes. The Help menu items now open more reliable in Help Viewer with current macOS versions.
  • The simulator now contains Don Baccus’s os8pip utility.

Information

License

Free

Size

28.9 MB

Downloads

4776

App requirements

  • Intel 64
  • Apple Silicon
  • OS X 10.11.6 or later
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Phoenixdownunder
Phoenixdownunder
Dec 9 2019
2.2
5.0
Dec 9 2019
5.0
Version: 2.2
This is a really cool piece of fun yet serious software! Brilliant. Ahhh, thems was the days!!
arizdave
arizdave
Dec 9 2019
2.2
5.0
Dec 9 2019
5.0
Version: 2.2
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.
Whisperquiet
Whisperquiet
Nov 6 2015
2.0.2
5.0
Nov 6 2015
5.0
Version: 2.0.2
Just fantastic! Brings back so many memories for me with Digital :o)
Aaron-Elkins
Aaron-Elkins
Dec 9 2014
2.0
5.0
Dec 9 2014
5.0
Version: 2.0
How cool it is.
Dylan-Mc
Dylan-Mc
Dec 9 2014
2.0
5.0
Dec 9 2014
5.0
Version: 2.0
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/
Free
Absolutely Free
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