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PDP-8/E Simulator - 1.5.1

DEC PDP-8/E minicomputer simulator

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All Time:	(4.8)
This Version:	Not rated (0.0)
Current Version:	1.5.1
Release Date:	2006-05-01
License:	Freeware
Downloads (this version):	1,835
Downloads (all versions):	6,514

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Product Description:

The PDP-8/E Simulator is an emulator for the Digital Equipment Corporation PDP-8/E minicomputer, a famouse computer of the early 1970 years. The simulator, first released 1994, provides a comfortable user interface for running, writing and debugging PDP-8 software on a Mac and to learn about the internal functioning of a computer. It has a console with switches and flashing lights enabling the user to operate the PDP-8 like a hardware machine. Maybe the simulator is of interest for a larger audience using it for educational purposes or as a remembrance to the good old time of the computer age. The simulator and its source code are published under the GNU General Public License.

What's new in this version:

Some minor bug fixes:

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).
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.

Note: the version 1.5.1 update must be merged to the version 1.5 distribution to get the complete PDP-8/E Simulator package.

Operating System Requirements:

This product is designed to run on the following operating systems:

Mac OS X 10.4 Intel
Mac OS X 10.4 PPC
Mac OS X 10.3.9
Mac OS X 10.3
Mac OS X 10.2
Mac OS X 10.1
Mac OS X 10.0
Mac OS Classic

Additional Requirements:

System 2.0.1 - Mac OS X and a Motorola 68K-
PowerPC- or Intel-based Mac.

Feedback Summary:

This Version:
Overall Rating:	Not rated (0.0)	Features:	Not rated (0.0)	Support:	Not rated (0.0)
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Reviews Reviews Troubleshooting Usage Tips Developer Notes Commentary Featured Reviews

Pretty Neat - Version: 1.5.b, 10/11/2003 10:11AM PST

jeffmc425

Having started out at GenRad and then DEC in the Traditional products group, I find this a great nostalgic. I tsurprises me after all these years i can remember to toggle in RIM loader ;)

Fantastic - that's… - Version: 1.4.3, 12/4/2002 11:16AM PST

hans, austria

all I can say. PDP 8/E was one of the first computers used by newspapers to generate pre-hyphenated papertapes driving hot-metal line-casters. I have written - in assembler! - several language related "modules". Can you imagine to store all this in 8 K Core. HRD

Outstanding! Ah, this… - Version: 1.4.3, 12/2/2002 04:43PM PST

Paul Norman

brings me back. I started working for DEC in 1979. My first "Hello World" was "written" by flipping switches on a PDP8. I still have the programmer's card - now *that* was a reduced instruction set!