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Path: utzoo!utcs!mnetor!lsuc!jimomura
From: jimomura@lsuc.UUCP (Jim Omura)
Newsgroups: net.micro.6809
Subject: Microware's Pascal over 64K memory used
Message-ID: <956@lsuc.UUCP>
Date: Wed, 4-Dec-85 12:18:01 EST
Article-I.D.: lsuc.956
Posted: Wed Dec  4 12:18:01 1985
Date-Received: Wed, 4-Dec-85 14:20:21 EST
Reply-To: jimomura@lsuc.UUCP (Jim Omura)
Distribution: na
Organization: Barrister & Solicitor, Toronto
Lines: 22
Summary: How is this done?  Module Swap or VM?


     I just read the December 1985 Hot CoCo and on page 32, Brian Lantz, a very
respected OS-9 programmer notes the following:

     "You can run programs that are longer than 64K in OS-9 Pascal.  Tandy's
OS-9 Pascal allows two compilation methods.  You can compile straight down to
Assembly code or to an interpreted code called i-code; the regular or the
swapping interpreter can run the i-code.  The swapping interpreter keeps only
as much of the program in memory as it is able.  Since the remainder is read
in from disk as needed by the swapping interpreter, program length is not
restricted ... "

Does anyone know for sure what method is being used in the memory
swapping 'i-code' interpreter?  Is it simply swapping modules or is it
a 'virtual processor' scheme of some sort?

-- 
James Omura, Barrister & Solicitor, Toronto
ihnp4!utzoo!lsuc!jimomura
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