Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!sun-barr!newstop!texsun!digi!jgay
From: jgay@digi.lonestar.org (john gay)
Newsgroups: comp.os.msdos.programmer
Subject: Re: image processing on a 486...
Message-ID: <1991Mar26.200300.12931@digi.lonestar.org>
Date: 26 Mar 91 20:03:00 GMT
References: <14043@hacgate.UUCP>
Distribution: na
Organization: none
Lines: 26

From article <14043@hacgate.UUCP>, by sahtirn@ipla01.hac.com (Walter and Bill):
> I intend to do image processing on 8-bit imagery using Neural Net algorithms
> (i.e., lots 'o' flops - correlations, array operations, statistical analysis)
> and i will need the CPU throughput and 256-grey-level display capability to
> 
> * I would like to get a Weitek coprocessor, but i would also like to stay with
> Turbo C++ (i understand 2.0 does windows - any bugs?).  Can the new Tc++ gen-


I don't think that BC++ (turbo C++ for windows' new name) can generate
Weitek code.  Instead of going with BC++ or any other 16 bit compiler
I would look at '386 (or '486) specific compilers (Zortech's ZC++, Watcom
v8 for '386, etc.)  I think that you would get better usage out of your
CPU (and computer) by using the faster '386 instructions and flat addressing
space.  I believe that you will see better (i.e. faster) results by using a
'386 compiler w/o the Weitek then you would by using a '286 compiler (BC++,
Microsoft, etc) and the Weitek chip (even if the 2 '286 compilers I listed
supported the Weitek, which they don't).  You will also save money -
$ for '286 compiler + Weitek > $ for '386 compiler.

If you MUST have the Weitek chip I think that there are a few compilers
that support it and they are all '386 compilers anyway - MetaWare (not
sure about Weitek support), Microway NDP (C and C++, '386 and '486, w/ Weitek
support), etc...

john gay.