Ronald G Minnich wrote:
> On Fri, 30 Mar 2001 [EMAIL PROTECTED] wrote:
>
> > Play with the southbridge to copy the bios to SDRAM in the same space
> > that the bios normally resides. I.E. Normal bios SDRAM shadowing. I
> > think I can set things up so that reads come from the flash, writes go
> > to the SDRAM and then switch so that reads come from the SDRAM and do
> > an "in-place" copy. No address translations needed and once it is done
> > I am free to page my flash all I want and access it in the top Meg of
> > the address space.
> >
> > Does anyone know if I am wrong about this?
>
> seems reasonable to me ...
>
> it's also a cute hack.
And an old one. The Commodore 64 used this technique to modify the rom
basic... read from rom,
write to ram beneath, modify token list, switch off rom. Cool.
>
> ron
