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Old 10th April 2009
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Default A PDP-11 program card

I was trying to find some data about the PDP-11s instruction set, so I could look up the bvc and sxt instructions in this old snippet. After a quick look around google, I stumbled upon a page talking about an emulated PDP-11 on SIMH; and the idea of keying in a program one instruction and one address at a time on toggle switches.

Then I saw this picture referenced, and thought it worth posting for anyone old enough to have programmed when "cards" were integer to the process:

"Front" Side of a PDP-11 Programming Card from 1975
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Thou shalt check the array bounds of all strings (indeed, all arrays), for surely where thou typest ``foo'' someone someday shall type ``supercalifragilisticexpialidocious''.

Last edited by TerryP; 10th April 2009 at 07:08 PM.
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