From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 18 Dec 1995 15:32:05 -0500
From: forsyth@plan9.cs.york.ac.uk forsyth@plan9.cs.york.ac.uk
Subject: 3c589 on a thinkpad 701
Topicbox-Message-UUID: 38946962-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19951218203205.XO8VWvOuXLb-lZKL8vBzUXlnedDWS8MJ_uQeJmQxwdw@z>

the quick hack to get the 3c589 (and presumably almost
anything else) to work on the thinkpad was to change
	p = (uchar*)(KZERO+0xC8000);
in /sys/src/9/pc/main.c to
	p = (uchar*)(KZERO+0xD0000);
i'll work out something more general later.

the problem is that 0xC8000 appears to be writable (it's probably shadowing
something), but nothing else can be mapped over it.
i couldn't find a configuration control screen to enable or disable shadowing.

does anyone happen to know
	- which sound chip is used in the 701?
	- which infrared chipset is used for the irDA interface?