Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!umd5!uflorida!novavax!hcx1!hcx2!jgj
From: jgj@hcx2.SSD.HARRIS.COM
Newsgroups: comp.sys.atari.st
Subject: Re: MWC & large arrays -- help!
Message-ID: <46700008@hcx2>
Date: 14 Jun 88 16:40:00 GMT
References: <734@cacilj.UUCP>
Lines: 16
Nf-ID: #R:cacilj.UUCP:734:hcx2:46700008:000:886
Nf-From: hcx2.SSD.HARRIS.COM!jgj    Jun 14 12:40:00 1988


I have experienced this problem too.  As far as I can tell, in 3.0, structures
are limited to 32Kb.  Also, elements of an array are limited to 32Kb.  Thus the
declaration
  char array[10][33000];
causes wrong code to be generated for references to array.  The problem is,
the compiler uses 16 bit quanitities to remember element sizes.  The code
that gets generated for
   cp=array[i]; 
is the base addresss of array plus i times the sign extended low order
16 bits of 33000!  Very frustrating.  I spent two hours of debugging before
I put the pieces of the puzzle together.
============================================================================
Jeffrey Glen Jackson  | Satan jeered, "You're dead meat Jesus, I'm gonna
jgj@ssd.harris.com    |     bust you up tonight."
x5120                 | Jesus said, "Go ahead, make my day."
                      | -- Carman, "The Champion"