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Path: utzoo!watmath!clyde!cbosgd!ihnp4!inuxc!iubugs!iuvax!franco
From: franco@iuvax.UUCP
Newsgroups: net.micro.atari
Subject: Re: Large Arrays In Sight
Message-ID: <500018@iuvax.UUCP>
Date: Sat, 14-Dec-85 13:17:00 EST
Article-I.D.: iuvax.500018
Posted: Sat Dec 14 13:17:00 1985
Date-Received: Tue, 17-Dec-85 04:42:07 EST
References: <500017@iuvax.UUCP>
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Nf-ID: #R:iuvax:500017:iuvax:500018:000:1014
Nf-From: iuvax!franco    Dec 14 13:17:00 1985


P.S. In case anyone is interested, ST BASIC does not take full advantage
of the new memory.  I find I can now load large BASIC programs without
having to turn off GEM accessories and the Graphics Buffer but I still
cannot get the array sizes I want.  In particular it seems that the maximum
amount of memory ST BASIC is able to devote to arrays is around 8192 (8K)
words minus some overhead (maybe 5 words) for each "column".  For example
the following limits were found:

  1. DIM A(8187)
  2. DIM A(4093,1)    <<comment: there is a column "0" and a column "1">>
  3. DIM A(2728,2)
  4. DIM A(2045,3)
  5. DIM A(1636,4) 
  6. DIM A(4091), B(4091)
  7. DIM A(2726), B(2726), C(2726)
 
I would greatly appreciate someone telling me how to get ST BASIC to allocate
more space, if that is possible.  Thanks.

P.P.S.  Another peculiarity is that, by means of poke, one can find the
highest byte address recognized by ST BASIC to be about 1014000 which is
short of 1Meg by about 30000 bytes.  Did I get gipped or what?