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From: jpn@teddy.UUCP (John P. Nelson)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Microsoft C 4.0 large models
Message-ID: <4251@teddy.UUCP>
Date: Fri, 7-Aug-87 09:53:25 EDT
Article-I.D.: teddy.4251
Posted: Fri Aug  7 09:53:25 1987
Date-Received: Sun, 9-Aug-87 01:55:01 EDT
References: <3225@cucca.columbia.edu> <3320039@hpsrlc.HP.COM> <2190@emory.uucp> <4589@jade.BERKELEY.EDU>
Reply-To: jpn@teddy.UUCP (John P. Nelson)
Distribution: world
Organization: GenRad, Inc., Concord, Mass.
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In article <4589@jade.BERKELEY.EDU> ehughes@violet.berkeley.edu () writes:
>On many DOS compilers, the allocated memory pool is taken from a single
>segment, i.e. 64K max.  This is true EVEN IN LARGE MODEL.  ...
>There may be performance problems using 4-byte pointers ...

Either he is confused, or I am confused.

Large model implies 4 byte pointers.  I don't know about "many DOS compilers",
but with MSC 4.0, a large model program will allocate memory beyond the 64K
"default data" segment (segment group) by calling DOS memory allocation
functions.