Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!cuae2!ltuxa!ttrdc!ttrdd!mellman
From: mellman@ttrdd.UUCP
Newsgroups: comp.sys.mac,comp.sys.misc,comp.sys.m68k
Subject: looking for lisa HW/FW data.
Message-ID: <174@ttrdd.UUCP>
Date: Tue, 26-May-87 14:10:35 EDT
Article-I.D.: ttrdd.174
Posted: Tue May 26 14:10:35 1987
Date-Received: Wed, 27-May-87 05:05:55 EDT
Organization: AT&T, Skokie, IL
Lines: 23
Keywords: Hardware, Firmware, FA0000, disassembly
Xref: utgpu comp.sys.mac:3157 comp.sys.misc:582 comp.sys.m68k:467

I'm looking for information about the hardware and/or firmware
configuration of the lisa.  I have the uncompleted, and poor, hardware
manual that was given out by apple to all who asked for it, but there's
some vital information missing.

I have a binary license of Unisoft's implementation of Unix system V
running on my lisa, and want to add parallel printer support.  The
way I'm trying to get there is to disassemble the existing corvus disk-
drive driver, and use the information gleaned from that to write my
simple printer driver.  Then, I'll use /dev/mem to overwrite the corvus
driver before I print.

I was doing fine, until I ran into an access (... many accesses) to
0xFA0000.  This is apparently the base address of a bank of hardware
control registers, but it's not mentioned anywhere in the aforementioned
manual that I have.

Any help, knowledge, or suggestions will be greatly appreciated... I
wonder if there are any lisa/system V users out there who'd like to
form a users group?

Thomas Mellman
...ihnp4!ttrdc!ttrdd!mellman