DEC VT20 boot device

Lars Brinkhoff lars at
Sun Aug 11 02:02:43 CDT 2019

Paul Birkel wrote:
>>I wonder if, maybe, it used the same protocol as the GT40, which also
>>had a boot-over-serial line capability.
> Section 5.1.1 Bootstrap Loader describes the packed-and-serialized
> 6-bit "byte" stream

I have the GT40 boot ROM assembled on a PDP-10 host and used for booting
by SIMH.  There is also a GTLOAD program which translates a PDP-11
binary on the PDP-10 host and sends it to the GT40.

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