32-bit I/O


From: Petr Snajdr <SNAJDR@STUDENT.VSZBR.CZ>
Subject: 32-bit I/O
Date: Tue, 16 Jan 1996 16:31:41 MET-2DST

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> > 32bitovy pristup k souborum ve
> > Windows 3.11 znamena pouziti interni diskove cache, tedy lepsi, nez
> > SMARTDRV, pracujici rovnez v protect modu.
>
> Nejen to. To, co M$ nazyva "32bitovy pristup k souborum" znamena v
> podstate nahrazeni real-mode MS-DOS spravy souboru vlastnim
> (predstavovany komponentou VFAT.386).
> WFW 3.11 tedy predvadeji jakousi ukazku toho, co se plne rozvinulo az
> ve WIN95, totiz prevzeti celeho filesystemu do vlastnich rukou a
> uplne vyrazeni real-mode rutin MS-DOSu.
 
No jo,ale DOS k disku taky nejde primo,ale pres BIOS,ne ?
Znamena to,ze 32-pristup nahrzuje i BIOS (tj.ze pristupuje primo pres
porty? To snad ne..)
 
> Pochopitelne pak musel M$ zaradit do WFW 3.11 take vlatni cache
> (predstavovanou komponentou VCACHE.386), plnici stejnou fci jako
> SMARTDRV ...
 
Lze tyto *.386 nahradit jinymi ???
 
S pozdravem
  Petr Snajdr

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