HP HP-11C User Manual

Section 5: Programming Basics 87
program. To run the circle area program, key in the radius data
and press [f][A].
Example Execution. Calculate the areas of circles having radii
of 7.5 centimeters, 9 inches, and 15.3 meters:
Keystrokes Display
7.5 176.7146 Square Centimeters
9 254.4690 Square Inches
15.3 735.4154 Square Meters
How the Calculator Searches For a Label. When you set the
HP-11C to Run mode, the calculator was positioned at line 005 of
program memory (the last line you filled with an instruction when
you were loading the program.) When you pressed [A], the
calculator began to search sequentially downward through
program memory, beginning with line 005, for a
instruction. When the calculator searches, it does not execute
program instructions.
Because:
1. Line 005 did not contain the ———
(LBL][A]instruction, and ! 1 000-
2. No further lines of program : 001-42,21.11
memory were occupied, I 002- 4311
your HP-11C returned to line 000 and | 003- 4216
resumed searching downward : 004- 20
through program memory. When the I 005- 4332
calculator found the I ®_T
r
instruction at line 001 it then began @
executing
your
program.
End
of
Occupied
Program Memory
Executing Program Instructions. The calculator executes the
instructions in the order you keyed them in, performing the
operation in line 002 first, then in line 003, etc., until it
executes a [g] instruction, a (run/stop) instruction, or
encounters the end of occupied program memory. Since there is a
instruction in line 005, execution returns to line 000 and
halts. The result of the calculation, the value in the X-register, is

HP HP-11C Specifications

General

Brand	HP
Model	HP-11C
Category	Calculator
Language	English