Date: Mon, 11 Mar 96 22:30:10 +0100 From: Jean-Marc Zucconi <jmz@cabri.obs-besancon.fr> To: bde@zeta.org.au Cc: current@freebsd.org Subject: Re: COMCONSOLE: a patch and a problem Message-ID: <9603112130.AA11400@cabri.obs-besancon.fr> In-Reply-To: <199603110647.RAA07820@godzilla.zeta.org.au> (message from Bruce Evans on Mon, 11 Mar 1996 17:47:26 %2B1100)
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>>>>> Bruce Evans writes:
>> I played with the boot blocks and I noticed that I was unable to boot
>> from a serial console (keyboard unplugged). The patch below fixes a
>> bug in boot.c/probe_keyboard.c (well, at least on my machine:-).
> I don't think I broke this :-). I wonder when it last worked.
>> The problem now: when booting from a serial console, there is no
>> timeout at the 'Boot:' prompt. Further investigations showed that the
>> bios_tick function always returns the same value! Is this related to
>> the fact that the keyboard is not plugged in?
> I broke this. It's because there are no BIOS calls which have the
> side affect of allowing clock interrupts. Add some dummy BIOS calls.
> Putting them in the bios_tick macro would take too much space, so
> arrange to always call ischar() and throw away the result in the
> RB_SERIAL case.
Thanks for the hint. I just tried it and comconsole now works
perfectly. (serial_ischar() -> serial_ischar()|(0 & ischar ()))
> Bruce
Jean-Marc
_____________________________________________________________________________
Jean-Marc Zucconi Observatoire de Besancon F 25010 Besancon cedex
PGP Key: finger jmz@cabri.obs-besancon.fr
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