ioports.c change -> buffer overflow ... bug?

[Marcus Meissner]

Hi Florian,

You are calling get_timer_val(3) in ioports.c 
(if (chan == 3) ... going down to get_timer_val(chan))

Howver, tmr_8253 is just a 3 element array, so [3] will run over the end,

Is your code right? The change comes from this commit:

	commit edbd4885542e4545439906df950a68dc48e70839
	Author: Florian Tobias Schandinat <FlorianSchandinat(a)gmx.de>
	Date:   Tue Feb 3 18:26:04 2009 +0100

	    winedos: Improve PIT emulation.

Ciao, Marcus