How to create the Synthetic Byte Grabber

Programs for HP-41

How to create the Synthetic Byte Grabber

Postby jotne » Wed Nov 26, 2008 2:18 pm

There are several ways to do this.
This ways seems to work witout needing to take a "Memory Lost" first.
Do also remove all program modules. Memory modules can still be inn
Works on all HP41, works on most emulators too (go41cx)

Task
What to enter
What to see in the display


Clerar memory
ON <- (Back arrow)
MEMORY LOST

Asign LBL to LN key
SHIFT ASN ALPHA L B L ALPHA LN
ANS DEL 14

Asign DEL to LOG Key
SHIFT ASN ALPHA D E L ALPHA LOG
AND LBL 15

Go to User and Program Mode
USER PRGM
00 REG 218

Run Catalog 1 and stop before blink (R/S must be hit as quick as possible)
SHIFT CATALOG 1 R/S
.END. REG 218

Delete a character to go into asign area
ALPHA <- ALPHA (Back arrow)
4094 RCL 01

Goto Label 5
SHIFT GTO . 0 0 5
05 LBL 03

Delete two registers
DEL 0 0 2 (using LOG key)
04 STO 01

Type in "?AAAAAA"
ALPHA ? A A A A A A ALPHA
05'?AAAAAA

Exit PRGM and Clean up
PRGM SHIFT GOTO . .
PACKING and then 0.0000

Test Byte Grabber
Press and hold LN key
XROM 28,63 and then NULL

To save yourself this work and to loose all program in memory, do write this to a card using a Card Reader
XEQ ALPHA WSTS ALPHA
RDY 01 OF 02
Insert a card.
This writes all register to a card.
HP41CX with CCD module . HP41CV . HP42S + many other HP calculators
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