Release 0.6 of PDP-11 SIMH for Mac OS X

Folks not interested in DEC PDP-11s and SIMH may want to ignore this. However for those interested in PDP-11s that have Mac OS X, I am pleased to announce that a Mac OS X-specific port of the PDP-11 simulation of SIMH is available for download. Please use the following URL to access the instructions and .dmg file: <http://dundas-mac.caltech.edu/~dundas/retro/simh/> This application is a port of PDP-11 simulation only of SIMH V3.3-2 (the current release) to the Macintosh OS X environment. The application requires a G3 or newer with OS 10.2 or later in order to execute properly. Features of the application include: - Built-in complete VT100 emulation. No need to use Terminal.app to access the console or run the simulation. The VT100 supports copy & paste between applications. Emulation is very complete and has been tested with TECO/VT, KED, and EDT. - Built-in PDP-11 front console panel. The panel emulates a PDP-11/70 console and can appear in one of three variants. All switches are functional except S INST/S BUS CYCLE. Almost all lights are functional. Keyboard equivalents are available for all console switches. The Console also has an optional "speedometer." - Interface to SIMH is either through SCP commands in the VT100 window or Macintosh native menus and dialogs. - Dynamic tool tips (formerly balloon help) are supported in all windows and dialogs. - On-line help and documentation. - The application looks for a fixed configuration file (~/.simh-pdp11rc) at startup. All file commands may specify relative paths with ~ or ~user. - The application can optionally spool LPT output to a PostScript printer, simulating greenbar paper, as the simulation creates it. - The application supports Processor Services allowing other applications to send commands to the VT100 or Console windows. Copy and paste is supported in the VT100 window. Drag and drop will be supported in future releases. - The application provides desktop icons for tape container files (.tap). Tapes (.tap and .tk50) can be attached while the simulation is executing by double clicking on the files. [This capability soon to be added for disk container files as well.] Please enjoy and send any feedback directly to me. Thanks, John