Messages in this thread | | | Date | Mon, 17 Jul 2000 17:40:52 +0400 (MSD) | From | Andrey Panin <> | Subject | Re: A20 handler problem |
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Hi,
most(all?) modern PC chipsets support so called system control port (0x92) which provides A20 line handling along with other features.
AFAIK bit 1 of 0x92 port control A20 line: 0 - A20 disable / forced 0 (real mode) 1 - A20 address line enable
But I didn't try it, you warned :)).
Best wishes, Andrey
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