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PR GRAMMING THE
91008
CONTINUED
PROGRAM OPERATION
Steps can also be inserted into a program. lf the program is
short, it is faster to re-enter the program manually starting at
the first incorrect step; if the program is long, the magnetic
card may be used, as illustrated in the following example, or a
'patch-in'
method may be used (this will be explained after the
next example).
EXAMPLE:
The
steps shown
below a re pa
rt
of a (pu rely hypo-
thetical)
long
program and it is required to
insert
two more
instructions
(say,
ROLLt and
jy')
between
steps
64 and 65.
KEY
STEP
KEY
CODE
-
.
-
.
.
. -
.
.
. . .
(+)62
ACC
+
60
63
t
27
64
RCL
61
I
I
65
+
33
66
{X
76
67
END
46
ln order to make these changes f trst enter the pro-
gram
into
the calculator:
SWITCH:
RUN
PRESS:
GO TO
c )( )
+
SWITCH:
PROGRAM
6
2
PRESS:
the keys
in
the
program
sequence.
To
correct th
e program:
Record
t
he program, startin
g f rom address
(
+
) 65, on a
magnet
te card:
SWITCH:
RUN
PR
ESS:
GO TO
(
)(
)
+
INSERT:
magnetic card
PRESS:
RECORO
6
5
I
I
j
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