Memory Models
Peter da Silva
peter at ficc.uu.net
Sat Aug 12 00:47:10 AEST 1989
In article <10703 at smoke.BRL.MIL>, gwyn at smoke.BRL.MIL (Doug Gwyn) writes:
> That is not a C language issue. It's kludgery introduced specifically
> in the IBM PC environment.
Emphatically agree.
> Unless you have a strong reason not to,
> just always use the large memory model.
Disagree. Always use the smallest model you can get away with, but if
the program won't work under a small model don't play games with
NEAR and FAR pointers... just go to a larger model. You will thank
yourself later when you get a real computer.
> (A strong reason would be
> compatibility with an existing object library, for example.)
The massive performance advantage of small model over large is a
strong reason... so long as you don't have to use kludges to fit
into small model.
After all, all of UNIX ran in small model once upon a time :->.
--
Peter da Silva, Xenix Support, Ferranti International Controls Corporation.
Business: peter at ficc.uu.net, +1 713 274 5180. | "The sentence I am now
Personal: peter at sugar.hackercorp.com. `-_-' | writing is the sentence
Quote: Have you hugged your wolf today? 'U` | you are now reading"
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