Sebastian Herbszt wrote:
Kevin O'Connor wrote:
On Thu, Jan 06, 2011 at 04:24:13PM +0200, Gleb Natapov wrote:
On Thu, Jan 06, 2011 at 09:00:00AM -0500, Kevin O'Connor wrote:
> On Thu, Jan 06, 2011 at 03:53:57PM +0200, Gleb Natapov wrote:
> > On Thu, Jan 06, 2011 at 08:41:11AM -0500, Kevin O'Connor wrote:
> > > On Thu, Jan 06, 2011 at 07:09:27AM +0200, Gleb Natapov wrote:
> > > > On Wed, Jan 05, 2011 at 09:32:33PM -0500, Kevin O'Connor wrote:
> > > > > > -        SET_INT13DPT(regs, host_bus[3], 0);
> > > > > > +        SET_INT13DPT(regs, host_bus[3], ' ');
> > > > > > > > > > What if we're not in t13 mode? Should this be:
> > > > >   u8 fillchar = t13 ? ' ' : 0;
> > > > >   SET_INT13DPT(regs, host_bus[3], fillchar);
> > > > > > > > > Phoenix does not specify padding. Are you sure phoenix has to have zero
> > > > padding?
> > > > > > I think RBIL documented 0s. It may not be important. > > > > > What is RBIL? > > Sorry - Ralph Brown's interrupt list: > > http://www.cs.cmu.edu/~ralf/files.html > Ah, I have it, just didn't know it is called RBIL :).

Do you want me to resend with fillchar = t13 ? ' ' : 0; or space should
be good enough?

I just tested winxp, and it doesn't seem to call 1348 with a size
bigger than 26 bytes.  So, thinking about it further, I'm not sure it
matters - the spec isn't clear and I don't know of anything that would
care.  (To be clear, I think we should support the 66 byte buffer
size, however I'm not sure the padding matters.)

Sebastian - do you know of anything that calls 1348 with a buffer size
that could observe the difference?

I think syslinux and FreeDOS call 1348 - will check their buffers later.

Freedos - 30
syslinux - 66
GRUB2 - 66
Linux - 74

Sebastian


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