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07;
DSP “GC -> A OR IL -> B”
user to select which
routine they are
interested. In this case
pressing the “A” key on
the keyboard will execute
the Great Circle program.
08;
HLT
program to allow the
execution of the “A” key
or the “B” key.
Otherwise, the display
would only pause and
then continue with the
next line of code instead
of the desired selection.
09;
“A” , DSP “GREAT CIRCLE”
The “A”, is the label for
the Great Circle program.
When the DEF switch is
selected on the
keyboard, the A,B,C,X,Y
become active and will
execute any routine or
subroutine with the same
label.
The comma after the “A”
separates two
commands on the same
line.
In this case, because the
keyboard switch is in DEF
(defined) and the A key is
pressed, the result is a
display of