[pdp7-unix] Space Travel

Lars Brinkhoff lars at nocrew.org
Fri Oct 18 18:56:01 AEST 2019

I see .capt calls movdsp which uses CDF to stop and reset the display,
and dsprestart calls BEG to start the display.  Expanding the search, I
see CDF, LDS, RAEF, BEG to deal with the display, and RLPD, SPB, CPB,
LPB, WBL to deal with light pen and push buttons.  So those IOTs are
what I will focus on first.

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