Yep - in a former life, I once wrote a program that was put into an EPROM
and put into a ROM socket of the network card. It loaded (in assembly)
a small filesystem from the EPROM containing a few DOS TSRs (packet drivers
actually) and a master program (.COM format, bridging code). It also
mimiced enough of INT21 to let these programs run.. aah good old fashioned
hacking :)
Now, it would be doable to write some EPROM code that redirected INT10
(BIOS video functions) to the serial port adding VT100 escape codes. That
would get you a serial-console into the BIOS setup! Does anyone know if
a general BIOS setup screen uses INT10 or if it writes to video memory
directly?
Mike.
--
Miquel van Smoorenburg | The dyslexic, agnostic, insomniac lay in his bed
miquels@cistron.nl | awake all night wondering if there is a doG
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