[SeaBIOS] [PATCH 5/6] sercon: split-output implementation
Gerd Hoffmann
kraxel at redhat.com
Tue Sep 12 08:25:44 CEST 2017
Hi,
> > > Minor note - I realized after I sent my last patch that doing:
> > >
> > > SET_LOW(sercon_enable, (mode <= 0x07));
> >
> > I don't think so. 0,1,2,3,7 are text modes, but 4,5,6 not.
>
> It's safe to enter the C code on 4,5,6 though. Also, I don't think
> it
> was unusual to write text while in cga mode. (CGA support isn't a
> priority though.)
Oh. So the char write int10h calls work in cga mode too?
cheers,
Gerd
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