Andreas Freiherr wrote:
>
> Ben Franchuk wrote:
> >
> > Andreas Freiherr wrote:
> >
> > > Let me continue, and we can open a contest for writing the shortest
> > > bootstrap! ;-)
> >
> > Hardware ... Reset button :)
>
> ... and then what...??? :-)
Picky ...
Well reset clear's the track,sector,head and DMA address registers.
Clears the cpu's PC and sets the halt F/F and clears IRQ F/F.
Then you jam 'read sector' into the disk controler. The DISK_DONE Irq
clears
the halt F/F.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html
Received on Thu Feb 28 2002 - 12:13:48 GMT