Path: utzoo!utgpu!watserv1!watmath!att!bellcore!rutgers!cs.utexas.edu!sdd.hp.com!elroy.jpl.nasa.gov!zardoz.cpd.com!spsd!feedme!doug
From: doug@feedme.UUCP (Doug Salot)
Newsgroups: comp.windows.ms
Subject: Re: Win3.0 -32bit mode or 16bit protected?
Message-ID: <28624@feedme.UUCP>
Date: 15 Jun 90 04:24:34 GMT
References: <1990Jun13.194358.1895@vaxa.uwa.oz>
Reply-To: doug@feedme.UUCP (Doug Salot)
Organization: Feedme Microsystems, Orange County, CA
Lines: 14

In article <1990Jun13.194358.1895@vaxa.uwa.oz> c_leong@vaxa.uwa.oz writes:
>Does anyone know whether programming Windows3.0 in the 386 mode uses the 
>processor in 32bit flat address space or are we still limited to mucking
>about with segments and offsets..

The Windows kernel itself runs in a 32-bit flat-space and you can write
a flat 32-bit device driver, but the API is 16-bits and apps can be
V86 or 16-bit protected (or mixed, I believe).  I haven't seen the
DPMI spec yet, but it should support 32-bit protected-mode tasks.  So,
it's conceivable that you should be able to run 32-bit apps someday.

-- 
Doug Salot
doug@feedme.uucp || ...!{zardoz,spsd}!feedme!doug || doug%feedme@uunet.uu.net