phil at ultimate.com
Mon Oct 21 10:23:50 AEST 2019
> Does anyone know what "ald" does?
Looks to me like it's reading binary punched cards.
It gets some card read-related system addresses,
and defines an I/O instruction:
crsb = 0706744
which is defined on page 96 of
to select card reader "column binary" mode, reading the rows of each
column in as a 12 bit number.
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