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AUTHORS.md

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Creators of and Major Contributors to the PiDP-8/I Project

  • Oscar Vermeulen:

    • Creator of the project (both hardware and software)

    • Author of the initial modifications to the SIMH PDP-8 simulator necessary to make it use the PiDP-8/I front panel hardware

    • Curator of the default set of binary demo media

    • Author of the simulator setup scripts

    • Initiator of much else in the project

    • Author of the bulk of the documentation

    • Host and major contributor to the PiDP-8/I support forum on Google Groups

    • Hardware kit assembler and distributor

  • Robert M Supnik is the primary author of the SIMH PDP-8 simulator upon which this project is based.

  • Mike Barnes ported Oscar Vermeulen's SIMH 3.9 based PiDP-8/I simulator to the new SIMH 4.0 code base. (September 2015.)

  • Dylan McNamee ported the software to Buildroot for the official 2015.12.15 binary OS images and helped to merge the James L-W "alt-serial" mode in.

  • Mark G. Thomas wrote the installation scripts for the 2015.12.15 release, which were folded into the make install handler within the current Makefile.in. He also wrote the version of the SysV init script shipped here as etc/pidp8i-init.in.

  • Ian Schofield modified the LED lamp driving code in the simulator to better simulate the incandescent lamps in the original PDP-8/I hardware. (The bulk of his original code has since been rewritten, but the core idea remains, and it is doubtful whether the current method would exist without his instigation.)

  • Henk Gooijen pushed the PDP-8 simulator's internal EAE step counter value down into the PiDP-8/I's LED manipulation code, without which the step counter LEDs remain dark even when using the EAE.

  • Paul R. Bernard wrote src/test.c and the core of what now appears as doc/pidp8i-test.md. (The program builds and installs as pidp8i-test.) He also provided a one-line fix that completes the work of Henk Gooijen's step counter patch.

  • Rick Murphy is the current maintainer of OS/8 Adventure which we've included in our OS/8 disk image. He's also provided several other files which have landed in the distribution such as the VTEDIT feature. He also optimized the pep001.pal example so that it fits into a single page of PDP-8 core.

  • Tony Hill merged all the upstream SIMH changes produced between late September 2015 and late December 2016 into the PiDP-8/I simulator. This is the basis for the current automatic upstream feature merge capability, which is why many releases since December 2016 include an update to the latest version of upstream SIMH. His contributions are made to the project as tony.

  • Jonathan Trites wrote the initial version of the script mkos8 which built the OS/8 disk images from source tapes. mkos8 evolved into os8-run.

  • Bill Cattey is the project lead and primary developer of the system that builds the OS/8 media images from source tapes. He first greatly extended the mkos8 script then replaced it entirely as os8-run. He curated the tape collections we ship as media/.../*.tu56, created some of those tapes, and more. He has also contributed to other areas of the software project. His contributions are made to the project as poetnerd.

  • Bill Silver created E8, an Emacs-like editor for the PDP-8. See its AUTHORS.md file for more info.

  • Warren Young Did everything listed in the change log that is not attributed to anyone else.

    His contributions are made to the project as tangent, though keep in mind that some of those are commits of external contributions made by people who do not have commit rights on our software repository. The changelog provides proper attribution for these where the checkin comments do not.