Re: That horrible hack from hell called A20

Alan Cox
2000-12-06T13:32:11Z

> INT 15-2401 disable A20
> INT 15-2402 query status A20
> INT 15-2403 query A20 support (kdb or port 92)
>
> IBM classifies these functions as optional, but it is enabled on a lot
> of
> new BIOS, no know conflicts, thus we can call this function to enable
> A20,
> check the result and only after failure we can try the old methods.

I trust Linus over BIOS vendors, every single time.