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PROGRAMMING THE 91008
PROGRAM KEYS
Causes a brief return (approximately
1/
8 of a second)
to the display mode before continuing to the next step
of the program. For a Ionger display use successive
PAUSE instructions. lf the PAUSE key is hefd pressed, during
the running of a program, a stop will occur at the next PAUSE
instruction in the program (press CONT to continue running the
program).
The pause instruction is extremely useful in a program which
runs for a long time because of branching
instructions.
The
pauses enable the operator to
observe,
for example, the partial
result of the calculation while the program is running. PAUSE
also allows stopping the program
,
at a specified
point,
if the
operator so wishes, by holding the PAUSE key depressed (if the
STOP instruction were to be included in the program for this
purpose, the operator would be forced to remain with the calcu
-
lator to press CONT after each STOP had occurred). Without
the PAUSE instruction the display will remain blanked for the
entire calculation
;
the operator has no way of
knowing,
during
that
time,
whether the program is running correctly or
not;
in
this situation the PAUSE can provide a valuable confidence
factor.
•
Used as a PRINT command for peripheral equipment.
For complete information refer to the Operating Manual
for the particular peripheral. lf no printer is being used,
the PR INT
/
SPACE instruction will act as the STOP instruction;
this will require CONT to be pressed to continue running the
program.
The FORMAT instruction, foflowed by the next instruc-
tion, is used to control peripheral equipment; this
al-
lows the cafculator to be used as a controller in small
syst_
e ms. lf_ the ~MT is included in a program and no peripheral
~qu1pment
1s be1ng used, then the program will stop after
read-
·~g FMT and the next instruction; press CONT to continue
run-
n•ng the program, starting at the second step after the FMT.
When the FMT key is pressed, the display will blank· press any
key and the displaywill return.
'
For complete information, see the Operating and Service Man
-
ual for the particular peripheral.
7
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