C compiler compatability

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3 total messages Started by harmon Tue, 12 Aug 1986 16:00

#767

Author: harmon
Date: Tue, 12 Aug 1986 16:00

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 After reading the news about the new CoCo 3 I went to Radio Shack for
more information.  They gave me a nice sales brochure and let me look
thru the new catalog.  In the new catalog Level II os9 was listed
with a price tag of $79.  The combination of the new CoCo aand Level II
os9 is too much for me to resist and I hope to buy both as soon as they
are available.  My only concern is if my os9 Level I C and Pascal
compilers will work with os9 Level II.  Does anyone know if I will be able
to use my old compilers with Level II?  Can I buy an upgrade ?  Or will I
have to buy new compilers to use with Level II os9 ?

					Larry Harmon

Re: C compiler compatability

#769

Author: Peter C. Dibble
Date: Wed, 13 Aug 1986 15:46

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In article <847@abic.UUCP>, harmon@abic.UUCP writes:
> are available.  My only concern is if my os9 Level I C and Pascal
> compilers will work with os9 Level II.  Does anyone know if I will be able
> to use my old compilers with Level II?  Can I buy an upgrade ?  Or will I
> have to buy new compilers to use with Level II os9 ?
> 
> 					Larry Harmon

There is only one version of Microware Pascal.  It works on Level One or Two
(There is another version for the 68K of course).  The Microware distribution
of the C compiler includes two versions.  The level one version sacrifices
speed for size.  It has one more pass than the level two version.  However,
if you want, you can run the level one version on a level two system.  I had to
do that for some forgotten reason when I first got my C compiler.

As a rule all programs that run under level one will run under level two and
vice versa.  The exceptions to this rule are programs that use the additional
SVCs available under level two, and level one programs that reference addresses
than won't be in their address space under level two.  

... One other exception: some programs need the full 64k - delta address  space
available under level two.  The level two C compiler is an example.

Peter Dibble

Re: C compiler compatability

#768

Author: Jim Omura
Date: Thu, 14 Aug 1986 01:30

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     There's no problem with the C Compiler.  the only difference is
that the first and second passes are in one module on the Level II
version of the compiler.  The passes were separated in Level I to
fit in the smaller RAM space.  I'm not sure about the Pascal offhand.
I *think* it's ok too.

Cheers! -- Jim O.
-- 
James Omura, Barrister & Solicitor, Toronto
ihnp4!utzoo!lsuc!jimomura
Byte Information eXchange: jimomura
(416) 652-3880

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