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SECTION VIII.
OPERATOR'S CONSOLE
(Note, however, that if the space bar or one of the keys 0, 1, 2, or 3 is accidentally struck, no
harm results unless two additional octal keys are struck; the accident can be negated by press-
...,
ing the Carriage Return key. )
Following an A or P operation, the characters are guaranteed to be written into sequential
locations, starting with the address inserted into control memory in the A operation or printed
out from control memory in the P operation.
As previously noted, there is no console equivalent
to the control panel DISPLAY -1 button.
In addition, the contents of the control memory register
specified in the A or P operation are incremented by as many characters as are written into
main memory.
For example, the following operations
A
16 06143
~
~
;
(Carriage
IN
~~
returns
~_
~
automatically)
117
A
62
123 25
~
ooc
(Carriage Return
:
button pressed
~
after octal 5 key
~-
I
I
is struck)
leave the contents of the control memory register octal 16 standing at address 06146, since only
three complete characters are written into memory.
(Note that the partial character represented
by 25 above is not written into memory.) A carriage return (manual or automatic) which inter-
rupts a sequence of character entries can be followed safely by a continuation of the sequence
provided that a complete character (i. e. , depression. of three octal keys) is entered.
In the
example above, if 351 is struck after the carriage is returned, this character is written into
control memory address 06146, and the contents of control memory register octal 16 are
incremented to 06147.
R (Register Dump) Key
The R key is used to perform a register dump.
For example, when R is struck, the
R
console loads the memory address register with the contents of the control memory register
designated by the last A or P operation.
The console then loads the memory local register with
the contents of the main memory location referenced by the memory address register. Finally,
8-10
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