REGS41 Manual Page

     NAME
          regs41 - a filter to display an HP41 file as 'registers'

     SYNOPSIS
          regs41 < Input file > Output file

     DESCRIPTION
          The memory of an HP41 calculator is divided into 14 nybble
          (7 byte) registers. Many HP41 mass-storage files use an 8
          byte record to store each register, with the nybbles in a
          scrambled order

          regs41 undoes this scrambling and displays the 7 bytes of
          each register in hexadecimal, one register to each line of
          output. It is primarily designed as a tool for analysing
          unknown HP41 files. The HP41 data is read from standard
          input, and the hexadecimal dump of the registers is written
          to standard output.

     REFERENCES
          The sdata manpage gives references to the format of the
          sdata file, which is the most common HP41 file made up of
          registers. The nybble scrambling is the same for all such
          files.  Extend Your HP41 (W. A. C.  contains a considerable
          amount of information as to how the HP41 packs data into
          registers

     EXAMPLES
          If disk1.lif is a LIF disk image containing some unknown
          type of HP41 data file called ST41 then

          lifget -f disk1.lif ST41 | regs41

          will display the data in that file as HP41 registers and
          will hopefully assist in understanding the format of the
          file

     AUTHOR
          regs41 was written by Tony Duell, ard.p850ug1@gmail.com
          and has been placed under the GNU Public License version 2.0