HP HP-65 - Figure 4-3. Control Operations for Stopping and Branching

RUN STOP. = If is keyed in and a stored pro-
gram is not executing, the stored program starts exe-
cuting at the step denoted by the program pointer.
= If executed in a stored program, stops the pro-
gram, displaying the X-register and allowing keystrokes
from the operator. = If a in a program is immedi-
ately preceded by a numerical entry from the program,
the automatic lift is disabled upon return to the key-
board. This allows a program to display prompting in-
formation that will not be lifted in the stack if you enter
a number from the keyboard. Except for this case,
does not affect the stack lift.
Go to (prefix). When followed by a digit ([0], ...,
[9])) or aletter (A, ..., A), advances the program
pointer to the first occurrence of the corresponding pro-
gram label (i.e., followed by the same digit or letter).
Figure 4-3. Control Operations for Stopping and Branching
The function programming sequence of [N, . . ., was not
used. The method shown conserves function labels, using
instead. By this method you could still define all five functions,
keeping all six programs in memory simultaneously (within the
100 step limit).
Running the Program
Switch to RUN mode and
Press See Displayed Comment
Start program at top
of memory.
5 EnTER: 2 [ 5% 2% .85
7 [ENTER4 4 7 X 4% .85+ 8.50
8 [ENTER® 5 8 X 5 .85432.30
22 [ENTERA 6 178.50 22 X 6 X .85 4 66.30