HP 9100A User Manual

PROGRAMMING
Selects the mode of operat1on.
RUN: used to perform calculatJons. address the program
counter and execute a program.
PROGRAM: used to enter a program from the keyboard
and
venfy a program.
Causes an
uncondit10nal branch to the program address
entered by the next two keystrokes
or by the next two pro ·
gram steps. Each program step can be only one keystroke.
CORRECT INCORRECT
STEP KEY STEP KEY
29
2a
2b
GO TO ( ) ( )
5
c
29 GO TO ( ) ( l
2a 5 C
2b
Starts program execut1on at the present addres s. lf the
program has halted
execut1on at a STOP mstruct1on. pres s-
ing CONTINUE will start program execut1on w1th the next
program step.
lf the program has halted execut1on at an
END mstruct1on, pressmg CONTINUE w1ll start program
execut1on at program step 00. CONTINUE can also be
used as a
'no operat1on' program step. See the program
for N!, page 26.
Halts program execut1on and causes a return to the diS·
play mode. The STOP 1nstruct1on prov1des an uncondJ·
tional halt of program execut1on for entry of data or d1s
play of results. Pressmg CONTINUE begms program
execut1on w1th the next program step. Pressmg STOP
during execution of a program will cause the program to
stop execution at the present program step and will cause
a
return to the display mode. Pressmg CONTINUE will
begin program execution with the next program step.
Use the
STOP instruction to enter data. W1th the program
at a
STOP or END mstruct1on any keyboard operat1on can
be manually executed, prov1ded that no data 1s stored tn
a reg1ster contammg program steps. Stonng data tn a
reg1ster contammg program steps will destroy the program
steps m that reg1ster
Halts program execut1on and causes a return to the
display mode. The instruct1on resets
the program counter
to 00 so that pressing CONTINUE begins program execu-
tion at step 00.
END must be the last mstruct1on m a program . Reading
the END
mstruct1on from the magnet1c card stops tlle
reading process and resets the program counter to 00.
19
~ PROGRAM .~
~· - -~ -~

HP 9100A Specifications

General

Manufacturer	Hewlett-Packard
Model	9100A
Category	Calculator
Year Released	1968
Type	Desktop
Display	CRT
Memory	16 registers
Input Method	Keyboard
Power Supply	AC
Memory Registers	16
Weight	18 kg
Functions	Logarithmic
Programming Method	Magnetic card

Summary

GENERAL DESCRIPTION

OPERATIONAL SETUP AND REQUIREMENTS

POWER, GROUNDING, AND ACCESSORIES

Covers power specifications, safety grounding, and supplied accessories.

KEYBOARD AND DISPLAY INTERFACE

MODE SELECTION AND DISPLAY FORMATS

Controls for power, units, operation modes, and display formats.

NUMBER ENTRY AND REGISTER OPERATIONS

BASIC NUMBER ENTRY AND CONTROL KEYS

Explains keys for inputting numbers and managing registers.

ARITHMETIC AND FUNCTIONAL KEYS

BASIC ARITHMETIC OPERATIONS

Usage of arithmetic keys for addition and subtraction.

SCIENTIFIC FUNCTION KEYS

Details on trigonometric, hyperbolic, logarithmic, and root functions.

VECTOR AND STORAGE OPERATIONS

STORAGE AND RECALL FUNCTIONS

How to store, recall, and manage data in registers.

COORDINATE SYSTEMS AND VECTOR MATH

Functions for converting between coordinate systems and vector operations.

PROGRAMMING FUNDAMENTALS

PROGRAM STORAGE AND CONTROL INSTRUCTIONS

Overview of program capacity, steps, and essential control instructions.

PROGRAMMING MODES AND CONTROL FLOW

RUN, PROGRAM, CONTINUE, STOP, END

Details on program modes and essential control instructions.

PROGRAMMING TECHNIQUES AND EXAMPLES

CONDITIONAL BRANCHING AND PROGRAMMING LOGIC

Controlling program flow with conditional instructions.

PROGRAMMING EXAMPLES AND DATA ENTRY

Guides for entering, recording, and solving problems.

DIAGNOSTIC AND ADVANCED PROGRAMMING

DIAGNOSTIC PROGRAM FOR TROUBLESHOOTING

How to use the diagnostic program for troubleshooting.

ADVANCED PROGRAMMING TECHNIQUES

Techniques for constants, register management, and flag usage.