Path: utzoo!attcan!uunet!husc6!mailrus!ames!pasteur!ucbvax!cevax.berkeley.edu!ao
From: ao@cevax.berkeley.edu (Akin Ozselcuk)
Newsgroups: comp.lang.fortran
Subject: Two questions about PC FORTRANs
Message-ID: <24674@ucbvax.BERKELEY.EDU>
Date: 12 Jun 88 19:32:10 GMT
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Reply-To: ao@cevax.berkeley.edu (Akin Ozselcuk)
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I have a few simple questions:
The target of my questions are PC FORTRAN`S.

Q #1:  What is the largest memory space a PC FORTRAN (MS FORTRAN
and others) program can address ?
    1.a for an Intel80286 processsor
    1.b for a Motorola 68??? processor
    1.c for an Intel 80386 processor


Q #2: What is the largest array size in a program.  For example
can I write the following statement in a program, that is running in an
Intel 80286, without any error messages:
real array(100000)

    2.a How about Intel 80386 and motorola 68000 series.


My aim is to decide whether I should invest in a FORTRAN compiler
or not.  I need large core addressing capabilities (2 or 3 MB
to solve equations. ) Is Intel 80386 architecture capable of
providing such large memory addressing power (Under Xenix or DOS)
How about getting a C compiler  What is the largest memory space
I can address with a C program. (I have the feeling that
this should be compiler independent)


Akin Ozselcuk
ao@cevax.berkeley.edu