HP HP-16C - Section 8: Program Editing; The Mechanics

80 Section 7: Programming Basics
Keystrokes Display
Returns
to
Run
mode
(no
PRGM annunciator).
Display shows last
result.
0 Sets word size 64, the
largest possible word
size.
[fJ]SET COMPL[UNSGN]
10000000 00000000 00000000 .d
0000 0 00000000 .d Stores 10'?in Ry,
12345678987654
78987654 .d Enters the two numbers
to be multiplied.
987654321234567 21234567 .d
(GsB]1 19326320 .d Executes program
1 12 d. } labeled “1”; resulting
productis in X- and Y-
registers. Most
significant word is
1,219,326,320.
(xxy] 31035818 .d Least significant word
(f)[(WINDOW] 1 12676360 .d. } (19 digits) 0,731,267,
(1) [WINDOW) 2 73 d. 636,031,035,818. Exact
/ answer is 12,193,263,
Leading zero 200,731,267,636,031,
suppressed. 035,818,,.
To repeat the program with different values for the multiplicands,
just place those numbers in the X- and Y-registers and press 1.
(Flag 4 is set during execution of this program because the
operation leaves a remainder not equal to zero. However, this is of
no significance because the program calculates the remainder in
line 009.)
Further Information
Program Labels
Labels in a program (or subroutine) are markers telling the
calculator where to begin execution. There are 16 possible labels