Re: [Qemu-devel] [PATCH] Port E9 hack, for debugging purposes

[James Mastros]

I'm a bit of a newbie here, so perhaps this has already been covered, 
though I haven't seen it in the archives -- but why port E9, and not 
port 80?  80 seems to be the standard port for this sort of thing. 
(Though output seems to normally be two-digit-hex, and not ASCII-based.)

(Port E9 seems to be largely undefined, but marked as "reserved" in most 
lists I've seen (or just not listed), so it seems possible, but 
unlikely, that things will think they know what should be connected 
there.  OTOH, 80 is reserved for exactly what we're doing with it.  On 
the third hand, the Linux kernel uses writes to port 0x80 to "slow down" 
IO.  I'm not sure what the interactions would be with this.)

Oh, BTW, so people know what my vantage point is: I'm running QEMU with 
a Linux 2.6.10 host, Win XP SP2 guest, on a P4 3GHz HyperThreaded CPU, 
1GB RAM.  Runs like a charm.  (Just about to try running ZZT (an old DOS 
game) on it, may have problems with it running too fast -- we'll see.)

        -=- James Mastros