More interesting reading on the Apollo 11 LM

From: Paul Koning <pkoning_at_equallogic.com>
Date: Mon Mar 15 10:25:27 2004

>>>>> "Vintage" == Vintage Computer Festival <vcf_at_siconic.com> writes:

 Vintage> http://www.unt.edu/UNT/departments/CC/Benchmarks/benchmarks_html/sepoct95/lunar.htm

Amazing.

I suppose they'd compile by hand because compilers didn't optimize
well enough to make the code fit. But I wonder why they'd use a
language already obsolete for a decade?

I was hoping to see the story about the sign error, as described by
Dijkstra. Didn't see it. (The story is that there was a code bug in
the LM software, not found until close to the Apollo 11 flight -- they
had the sign of gravity wrong. Dijkstra mentions it in an interview,
having heard it from the one of the senior people involved in the
project. See http://www.cs.utexas.edu/users/EWD/video.html)

    paul
Received on Mon Mar 15 2004 - 10:25:27 GMT

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