On Wed, 7 Jul 1999, Greg Haerr wrote:
> The pmode ideas are good, but I think you missed the point.
> A normal, old-fashioned 8086 can be tricked into getting 65535 more bytes
> of memory than the normal 1 megabyte. This is accomplished
> by programming the keyboard controller on PC's to hold the A20 line
> high and then use the 8086's real mode address wrap "feature".
>
> I think it would be a good idea, and might even be ok to use
> it in the ELKS kernel to get another 64k of memory. Of course, whenever
> the tasks switch, the kernel's got to turn on and off the damned A20 gate.
> Isn't PC hardware fun 8-)
But are there memory cards with the extra 64k?
Jakob - puzzled
