FreeBee -- AT&T UNIX PC emulator

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I'm developing an emulator for the AT&T UNIX PC. Currently it can boot the 3B1 UNIX operating system and run acceptably.

There are some documents and other items here which may be useful to 3B1 owners.

The source code is hosted on Github: https://github.com/philpem/freebee

You will also need the Boot ROMs.

The 3B1 emulator would not be possible without the generous donation of two AT&T UNIX PC systems and software disks by Antoni Sawicki.

Andrew Warkentin has contributed many significant patches which improve the quality of the emulation and allow UNIX to be booted inside the emulator.

Boots 3B1 UNIX, with occasional errors. The C compiler used to cause memory paging errors, however recent improvements to the Musashi CPU core may have fixed this.

Boot ROMs.

This ZIP file contains binary and Intel Hex images of the two 3B1 Boot ROMs.

These are fitted at board locations 14C and 15C, and carry part numbers 72-00616 and 72-00617 respectively.

Steven Hirsch scanned the entire two-binder 3B1 UNIX PC Technical Reference and released them on the Classic Computers Mailing List. With his permission, his scans are mirrored here.