Hi!
16-Янв-2005 04:15 [EMAIL PROTECTED] (Michael Devore) wrote to
[email protected]:
>>MD> As far as UMB's, I'm not sure if turning off the A20 line affects memory
>>MD> mapping from physical odd-address Mb. Seems like it should,
>> Michael, strange to see such sentences from you. A20 is a pin of (186
MD> What's strange? UMB's are not physically addressed below 1M, that's why
[...]
MD> It _may_ be true that chipsets can inhibit A20 toggle-off for address
MD> decoding when any A21->A21+n pins are set, which would eliminate the
Hm. Sorry, Michael, there was blind gap - I was remember about 286+
real mode, but forget that UMB under EMM386's protected mode is same, as
HMA.
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