Re: Turbo Pascal 1.0 trivia

Toon Moene wrote:


> The first "native code" I saw produced by a Pascal compiler was COMPASS, i.e.
> CDC 6600/7600/175 series code.
>
> Not surprising, as Niklaus Wirth, and his female companion that I never can
> recall the name of, *wrote* Pascal for the CDC systems.


The CDC Pascal compiler was written by Urs Ammann. I have probably got
the number of m's or n's wrong. There was an earlier version of Pascal
which was ported to the ICL 1900 by a group in England whose names I
ought to be able to remember but cannot.


I am not sure at this point where that compiler came from - whether it
was a port or an ab initio effort. I think it was written up in
Software Practice and Experience, somewhere in the mid seventies.


Turbo Pascal did generate machine code, but a lot of it was calls to
an approximately 12K kernel which was presumably entirely hand coded
in assembler, so it was somewhere between a compiler and an
interpreter. When you output a com file, this kernel would be output
as the start of the file.
--

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