Self modifying code, lambda calculus - Re: ENIAC programming

Chuck Guzis cclist at
Mon Sep 21 19:37:27 CDT 2015

On 09/21/2015 04:58 PM, Al Kossow wrote:
> On 9/21/15 2:33 PM, Chuck Guzis wrote:
>> PASCAL was first implemented in FORTRAN.
> Was there something before
> ?
> looks like 6600 assembler to me

It's COMPASS all right, but a quick scan through it shows that it's more 
likely a run-time package, rather than a compiler.  Most interesting is 
the brief PP profiling program at the end.


FWIW, at about the same time this was being written, SYMPL was being 
floated to the SCOPE 3.4 people.  I recall some discussion about SYMPL 
including some elements of the then-nascent Pascal.  To the best of my 
knowledge, it didn't happen.

One wonders if Wirth ever considered coding the compiler in SYMPL...

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