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Synthetic Programming on the HP-41C
Autor: William C. Wickes
Verlag: Larken Publications (1980)
ISBN: 0-9625258-0-4
92 Seiten, English
Buchrückseite
KEYBOARDLOCKY
'Twas octal, and the synthetic codes
Were scanned without a loss.
In and out of PRGM mode,
Byte-jumpers nybbled the CMOS.
"Beware 0 STO c, my son,
The MEMORY LOST, the keyboard lock.
Beware the NNN, and shun
The curious phase 1 clock."
He took his black box codes in hand,
Long time the backwards goose he sought;
The secret beast from Aitchpee land--
All searches came to nought.
In demented thought he stood, and then:
The goose, with LCD's alight,
A leap for every LBL 10,
Came honking left-to-right!
STO b! STO d!, and RCL P!
His keyboard went clickety-clack.
With the proper code in number mode
The goose came flapping back.
"And hast thou found the phantom fowl?
Come to my arms, my binary boy.
Let Corvallis hear us howl
As we chortle in our joy!"
'Twas octal, and the synthetic codes
Were scanned without a loss.
In and out of PRGM mode,
Byte-jumpers nybbled the CMOS.
--Apologies to Lewis Carroll

Where can I get this book?
have a look at http://www.heldermann.de – probably they do have some examples of the book.
Thanks for the hint!