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118 Section 10:
118
Section 10: Program Editing
Program Editing
118
118
Section 10:
Section 10:
Program Editing
Program Editing
Keystrokes
Keystrokes
Keystrokes
Keystrokes
:3
~
go
g(00
:0
g(02
fs
7500?3
6500t
15000t
t
The following illustration of the edited program shows how program execution
branches to the instructions added at the end of program memory, then branches
back.
Display
Display
Display
Display
12-
45
3
13-
34
14-
43
34
15- 43, 33
00
16-
45
0
17- 43, 33
02
12,000.00
7,500.00
6,500.00
3,000.00
12,000.00
Added instructions.
Keys in instruction immediately
following point at which new
instructions are being added. (This
instruction was replaced in line 01
by (12 instruction.)
Branches back to second line (line
02) following point at which new
instructions are being added.
Sets calculator back to Run mode.
Stores test value in register R
Runs program for income less than
$7,500. Display shows original
income keyed in, indicating that tax
is zero.
Tax on $15,000 income.
Net income after tax. This shows
program still works for an income
greater than $7,500 and less than
$20,000.
.
3
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