git: purgatorio

ref: 43de7b8419fa3582af6df803473ef1bde2ce5c23
dir: /appl/demo/lego/

clockface.b
clockreg.sh
firmdl.b
legolink.b
mkfile
rcxsend.b
rcxsend.m
styx.srec
timers.b
timers.m