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NTRODUCTION
1.3 -- Software
Suppo~t
Required
1.3
SOTt~are
Support Required
No additional software is
re~uired
to run the
operating
system as
it
comes shipped on the system diskette.
1.4
Program Compatibility
All
of
the
MDOS
commands
and
system Tiles that are
shipped on
the
system
diskette
must
be
used
with
that
particular
version
of MDOS.
MDOS commands and system Tiles
rrom
other
versions
should
never
be
intermixed.
MDOS-Supported
softlllal'e
products
(see
A-9pendi~
H)
with
version numbers
3.00
or greater must be used with
MDOS
3.00.
They
will
nat operate
correctly with
p~iQr
ver~ions
o~
MDOS.
In addition}
prior
versions
of
the
M6800
Linking
Loader
CRLOAD,
through
version
2.03)
will
not operate with MDQS
3.00.
Prior
versions
of
other
MOOS-Supported
sOTtware
products
will
work with
MDOS 3.00.
Most
user-~ritten
assembly language programs that were
developed independently oT MDOS can be executed
on
an
MDOS
system
without
reassemblYi hOUlever,
such programs
111111
have
to be converted into the memory-image rile format before they
can
be loaded rrom diskette into memol'q (see section
2.8.5).
Programs need only be changed
~hen
transferred
~o
MDOS
if:
1.
They
make
assumptions
initialization
of
the
stack
they are loaded into memory}
about
the
pointer after
2.
They are origined to load (initialize
memorq
~hile
loading)
below
hexadecimal
location
$20,
3.
They
make
assumptions
about
the
physical
structure of diskette tables or files,
4.
They utilize the diskette for input/output,
5.
They
make
assumptions about the contents of
the
SWI
and
IRG
interrupt vectors.
If a user has prior EXORciser support software
products
which
he
has
purchased
f!'om
Motorola
(e.
g.
I
editors,
assemblers,
or compilers), that software must be upgraded
to
be compatible with MDOS.
If
a
user
has
softUJare
that
he has developed using
previous
ve,..·s ions
of
MDOS,
then
Appendix
.J
should
be
consulted
for
a
list
or
dirferences between MDOS
3. 00
and
prior versions that may affect
programs
running
. wi
th
MOOS
3.00.
Page
01-04
\
J
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