This file is part of ROMDump, a ROM dump utilty for the HP48sx Calculator.
Copyright (C) 1994 Eddie C. Dost (ecd@dressler.de)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
This is ROMDump, a utility to dump the ROM of ANY HP48
======================================================
Usage: (2:hxs, 1:hxs --> ) pop start address from level 2,
pop end address from level 1, and dump
ROM to the serial at 9600 baud using
lines of form "aaaaa:hhhhhhhhhhhhhhhh\n\r"
with 16 nibbles ROM data hhhhhhhhhhhhhhhh
at address aaaaa.
- Download the file ROMDump to your HP.
- To capture a complete ROM, start kermit on your computer,
set the line so that it fits your HP (use speed == 9600)
and type 'log session', then 'connect'.
- On your HP48 S/SX type '#0h #7FFF0h ROMDump' or on the G/GX
'#0h #FFFF0h ROMDump'. This will give you a complete ROM dump.
This will take about 15 minutes on the S/SX, 30 minutes on the G/GX.
- When done, type the kermit-Escape (usually CTRL-\) followed
by 'C' on your Computer. Say 'quit' to the kermit.
- Your ROM should now be in the file 'session.log'.
- To dump a certain range of ROM, enter the start-address in hex
and the end address in hex, and press 'ROMDump'.
(For example: '#7FFF0h #7FFFFh' ROMDump will output
"7FFF0:84054383D21467BC\n\r" on a Version A S/SX.)
I have included the assembler source (class version) for those
interested in fiddling with the hidden ROM...
Eddie C. Dost (ecd@dressler.de)
