By: Ricardo B (ricardo.b.delete@this.xxxxx.xx), August 17, 2014 6:28 am
Room: Moderated Discussions
Michael S (already5chosen.delete@this.yahoo.com) on August 16, 2014 11:30 pm wrote:
> Ricardo B (ricardo.b.delete@this.xxxxx.xx) on August 16, 2014 5:43 pm wrote:
> >
> > There's no support for 286 mode. 286 protected mode, fortunately, did not carry on to the 80386.
> >
>
> ???
> What piece of 286 ISA exactly was not carried to 386?
>
I was convinced system level things, such as the segment descriptor format, were not carried on from the 286 to the 386.
As Robert just explained, I was wrong.
A bit of digging shows that Intel designed the 286 segment descriptors to be forward compatible with the 386.
> Ricardo B (ricardo.b.delete@this.xxxxx.xx) on August 16, 2014 5:43 pm wrote:
> >
> > There's no support for 286 mode. 286 protected mode, fortunately, did not carry on to the 80386.
> >
>
> ???
> What piece of 286 ISA exactly was not carried to 386?
>
I was convinced system level things, such as the segment descriptor format, were not carried on from the 286 to the 386.
As Robert just explained, I was wrong.
A bit of digging shows that Intel designed the 286 segment descriptors to be forward compatible with the 386.
