[syslinux] missing syslinux details/docs

[H. Peter Anvin]

On 11/14/2011 02:25 PM, Bernd Blaauw wrote:
> Op 14-11-2011 22:58, H. Peter Anvin schreef:
>> MEMDISK doesn't support it; it would have to go into PAE mode and set up
>> page tables to be able to do it. It's possible, but not supported at
>> this time and it is unlikely to be a priority.
> 
> would a 64bit MEMDISK solve this issue? Or is the system then stuck in
> 64bit without being able to return to 32bit/16bit? (or the final booted
> OS can't find MEMDISK anymore then I guess).

A 64-bit MEMDISK would be unnecessary; all you need is PAE (PAE is
required for 64 bits, but also runs in 32-bit mode.)

The biggest problem is that if you find yourself in V86 mode (like what
can happen in DOS) you're screwed, because there is no way you can mimic
that with BIOS function 87h.

	-hpa