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- From: dic5340@hertz.njit.edu (David Charlap)
- Newsgroups: comp.os.os2.advocacy
- Subject: Re: Will OS/2 2.0 support Windows 386Enh development?
- Keywords: windows 386enh sdk
- Message-ID: <1992Aug13.194956.5426@njitgw.njit.edu>
- Date: 13 Aug 92 19:49:56 GMT
- References: <alcocer.713648532@nestea>
- Sender: news@njit.edu
- Organization: New Jersey Institute of Technology, Newark, N.J.
- Lines: 39
- Nntp-Posting-Host: hertz.njit.edu
-
- In article <alcocer.713648532@nestea> alcocer@parc.xerox.com (Dario Alcocer) writes:
- >Does anyone know if OS/2 2.0 will support, now or in the near
- >future, development of Windows apps that require 386 Enhanced
- >mode? As I understand the problem, Windows 32-bit code cannot
- >run under OS/2 because the Windows kernel wasn't written to be a
- >DPMI client and tries to control protected mode directly.
-
- No. Enhanced mode can't be provided unser OS/2. Not because of the
- DPMI client, but because Windows 32-bit code requires the process to
- run in kernel-mode. OS/2 will not allow a user application to run in
- this mode - it violates system integrety.
-
- >On a related note, when the CSD comes out for Windows 3.1
- >suppoort, will 386 Enhanced mode be supported? I've heard that
- >since Windows 3.1 was written to be a DPMI client, it can now be
- >hosted properly under OS/2 2.0.
-
- WIN-OS2 is already a DPMI client. IBM re-wrote the memory management
- of Windows 3.0 for WIN-OS2.
-
- >BTW, the project I'm working on requires 32-bit code (some heavy
- >image-processing code that cannot be reasonably ported to a 16-bit
- >Windows DLL, which would make it possible to run under Standard mode
- >that OS/2 does support). Also, for market reasons, we cannot write
- >exclusively for OS/2.
-
- This code will not work under WIN-OS2. If you structure your program
- properly, you can quickly port it to OS/2 later, though. If you use
- any CASE tools, you can use the same CASE files for both systems,
- since there are matching products from many vendors. (eg: CASE:PM and
- CASE:W. I think Microformatic's GPF system exists for PM and Windows
- as well).
-
-
- --
- |) David Charlap "I don't even represent myself
- /|_ dic5340@hertz.njit.edu sometimes so NJIT is right out!.
- ((|,)
- ~|~ Hi! I am a .signature virus, copy me into your .signature file.
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