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Load the instruction "OPR Reader" (2502110D)
into the B register.
Load the medium enable code, 00000021, into
the A register.
Place the computer in auto. (The card or tape
will be read into locations 01 8 through 50 8
).
Wait until the card (tape) is fully read, (i.e.,
the input device stops) then unlatch the Save P switch.
(The computer will execute the program read from
the card (tape).) Location 1 is the first instruction
executed.
PROGRAMMING AND MAINTENANCE CONSOLE
The programming and maintenance console as
shown below is an integral part of the central proc-
essor or, as an option, can be a plug-in portable unit
when several central processors are used but only
one console is required. This console allows the
programmer and product service engineer to com-
municate with the computer in machine language and
to step through programs.
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Register Display P, I, B, or A
The 24 register displays are pushbutton
momentary-type switch lights. These 24 switches
operate in conjunction with the A, B, I or P register
select switches.
If
A or B is selected, depressing
any one of the 24 sets a one bit into that position of
the register selected. These switches are enabled
in the manual mode only. The entire register is
cleared by depressing the "clear" switch. Individual
reset
is not provided.
Register Select P, I, B, A
The "P, I, B, and A" are momentary-type
switch lights. Depressing one of these switches
causes the respective light to glow and the associ-
ated register contents to be displayed in the 24 reg-
ister display lights. Depressing any one of these
four switches de-selects the others. These switches
are enabled in the auto or manual modes.
Register Console Switches (RCS)
These 24 console switches are latching-type
switches that operate in conjunction with the "read
console switch" instruction.
18
Save-I
of the I-register cannot be changed. When unlocked
off, the I-register functions normally. The Save-I
function is enabled only in the auto or manual modes.
Save-P
The save-P-register switch is a latching type.
When this switch is in the on position, the contents
of the P register cannot be changed. The Save-P
function is enabled only in the auto or manual modes.
Stall L/O
This switch functions only in the auto mode and
disables or enables all stall functions in the system.
Step
The step button is
a
momentary pushbutton which
steps the computer one instruction per depression.
This function is enabled only in the manual mode.
The step switch is disabled until the console is
switched to Manual.
Console OFF (lockout) (Toggle Switch)
In the Console off mode all console functions
except power off, RCS and demand are disabled.
Optional Console OFF (Toggle Switch)
The console off switch used on an optional con-
sole locks out all functions provided on the optional
console.
It
is mounted near the parity lockout
switch.
API Stall
The API stall indicator comes on when the API
watchdog timer is allowed to run out.
It
is turned
off by restarting the API watchdog timer.
CHl, CH2, CH3
Tne bulk storage indicators come on when the
associated device produces an error condition.
Example: drum, disc, etc.
Core Temp
The core temperature indicator comes on when
the core stack temperature is not within the allow-
able operating range. Should a parity error be de-
tected during this time, a normal shutdown sequence
will occur.
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