[TUHS] 2.9bsd with networking on 18-bit possible?

Noel Chiappa jnc at mercury.lcs.mit.edu
Thu Dec 13 00:14:18 AEST 2018

    > From: Paul Ruizendaal

    > project to make V6 run with the Gurwitz TCP stack on a TI990 clone
    > (which is pretty similar to a PDP11).


    > the code size is about 25KB for both a minimal V6 kernel and the TCP
    > stack, the rest is data.

That's impressively small; the MIT V6+ with 'demux only in the kernel' was
40KB for the combined code (although I can't easily get separate figures for
the networking part and the rest).

    > The Gurwitz code also has an Ethernet driver (note ARP was not invented
    > yet)

How did it get Ethernet addresses?


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