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HP 12c User Manual Page 117

Financial calculator.
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5. Press gi00. This automatically converts a data storage register into
seven additional lines of program memory (if there was not already a
i00 instruction remaining at the end of program memory), and it ensures
that program execution will branch to line 00 after the program is run.
6. Key in the instruction(s) being added.
7. Key in the instruction that originally immediately followed the point at which
the new instruction(s) are being added — that is, the first instruction to be
executed after the added instruction(s). (This instruction was replaced by the
i instruction keyed in at step 3.)
8. Press gi followed by two digits that specify the second line following
the point at which the new instruction(s) are being added. This i
instruction will cause program execution to branch back to the proper line
within the original program.
Example: Continuing with the preceding example, suppose incomes less than or
equal to $7,500 were not to be taxed. You could modify the program to check for
this condition and stop at line 00, displaying the original income keyed in, by
storing 7,500 in register R
and 01: :3~gogi00. Since there are more than four instructions
between (and including) the first line to be executed after the added instructions
(line 01) and the last line you keyed into program memory (line 10), it will require
fewer keystrokes to add the new instructions by branching than to add them by
replacement.
Keystrokes
fs
gi.00
gi12
gi.10
gi00
File name: hp 12c_user's guide_English_HDPMBF12E44
Printered Date: 2005/7/29
Section 10: Program Editing
and adding the following instructions between lines 00
3
Display
00-
Sets calculator to Program mode.
00-
Sets calculator to program line
immediately preceding point at
which new instructions are being
added. (In this particular example,
this step could have been skipped
since calculator was already set at
the proper program line.)
01- 43, 33
12
Branches to program line 12, the
second line after last line of
program.
10-
30
Sets calculator to last line of
program so that i00 instruction
keyed in next will be stored in first
line following program.
11- 43, 33
00
Ensures that i00 instruction
follows program.
Page: 117 of 209
Dimension: 14.8 cm x 21 cm
117

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