[TUHS] Work I've done with a PDP-11 simulator

John Cowan cowan at mercury.ccil.org
Sun May 11 11:27:56 AEST 2014

Larry McVoy scripsit:

> At Sun this was called "make bootstrap" but I bet that predates Sun.  The
> bootstrap process, as I remember it, had the compiler build the compiler,
> then the new compiler built the kernel and userland, then there was an
> install step, and presto, you were running on bits you had built yourself.
> All of them.

Well, provided the compiler is honest, contra Dennis.

An interesting fact about the Squeak Smalltalk image (which runs on the
Squeak VM as well as other VMs) is that there are bits in it which were
set prior to 1980, and consequently are not the consequence of any of
the source code provided with it.

John Cowan          http://www.ccil.org/~cowan        cowan at ccil.org
The Imperials are decadent, 300 pound   John Cowan <cowan at ccil.org>
free-range chickens (except they have   http://www.ccil.org/~cowan
teeth, arms instead of wings, and
dinosaurlike tails).                        --Elyse Grasso

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