PROG41 Manual Page
prog41 - a filter to list an HP41C user-language program
prog41 [-h] [-x xrom_file ] [-x xrom_file ] ... < Input
file > Output file
prog41 is a filter which produces a listing of an HP41C user
language program. It reads the program as a series of bytes
from standard input and prints the listing to standard
output (in a similar format to the standard HP41C printer).
By default, functions contained in plug-in modules are
displayed as XROM rr,nn where rr is the number of the plug-
in ROM and nn is the number of the function within that ROM.
This can be overridden by loading xrom_files, see the -x
option below. An xrom_file consists of a number of lines,
each consisting of 2 decimal numbers and a string
(containing no whitespace), in that order, separated by
whitespace. The string gives a name to the function
specified by the first number as rr and the second number as
The linux command pr may be useful for formatting the output
of prog41 into multiple columns.
-h Display the bytes (in hexadecimal) that make up each
program instruction immediately preceding the display
of that instruction
Use xrom_file to define names for functions in plug-in
modules. This option may be repeated to load multiple
-? Print a message giving the program usage to standard
xrom function definition files
The format of an HP41C program is documented in many books.
Amongst the most useful references are Extend Your HP41 (W.
A. C. and The HP41 Synthetic Programming Quick Reference
If disk1.lif is a LIF disk image containing an HP41 program
called PROG then
lifget -f disk1.lif PROG | prog41
will produce a listing of the program to standard output,
with the standard names for the functions in the HPIL module
and time module.
Some synthetic functions may not be displayed correctly,
although an attempt has been made to handle synthetic
programming. Some common HP41C characters are not printable
in ASCII (and are displayed as \nnn octal display sequences)
so the display of strings in programs may be somewhat messy.
prog41 was written by Tony Duell, email@example.com
and has been placed under the GNU Public License version 2.0