Re: [SeaBIOS] seabios 0.6.1 regression

[Avi Kivity]

On 11/15/2010 05:49 PM, Avi Kivity wrote:
> On 11/15/2010 05:41 PM, Avi Kivity wrote:
> > I think it's a miscompile.
> >
> > out/code16.o:
> >  1a4:   3e                      ds
> >  1a5:   6c                      insb   (%dx),%es:(%edi)
> >
> > Note no 66 prefix.
>
> It isn't, that was random crap.  All the insb() code is 32-bit.

Rewriting it to use inb / stos works (jecxz ; insb; loop doesn't) so it 
looks like a kernel bug in insb emulation.