1 Jul
2022
1 Jul
'22
4:48 p.m.
Rik Schneider <unix(a)deranged.schneider.org> writes:
Using a cheap pocket AM radio as an improvised signal
probe.
A classmate and I discovered this while learning Z-80 machine language
programming on his TRS-80. Of course our programs hung all the time,
but we discovered that with a cheap transistor radio, not tuned to any
station, sitting next to the TRS-80, we could learn to follow the
execution through the BASIC code, into our machine language subroutines,
and through the various parts of those. After a while, when our
programs hung, we'd usually know just where it had happened.
-tih
--
Most people who graduate with CS degrees don't understand the significance
of Lisp. Lisp is the most important idea in computer science. --Alan Kay