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NEC CP/M-86 - Updating the Assignment Table

NEC CP/M-86
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GSX-86: Graphics
for
the
APe
Updating The Assignment Table
The
Assignment
Table
(ASSIGN.SYS)
on
the
distribution
diskette is
configured
to
operate
with
the
APC
only.
To
use
any
other
graphics
device,
you
must
update
the
table.
The
Assignment
Table
consists
entirely
of
text
and
can
be
created
and
modified
with
any
text
editor
(ED,
for
example).
It
must
reside in a file called
ASSIGN.SYS
on
the drive specified in the
GRAPHICS
command
(or
the
current
default
drive
if
no
drive was specified in
the
GRAPHICS
command).
For
each
device
driver,
there
is
an
entry
containing
the
driver
number
(workstation
ID)
and
the
name
of
the
file
containing
the
associated
graphics
device driver.
The
following is a
sample
Assignment
Table.
It
shows
the
complete
contents
of
ASSIGN.SYS
on
the
distribution
diskette.
1
DDNECAPC
;
NEC
APC
DRIVER
The
syntax
for
entries in
the
Assignment
Table
is:
where:
DD [d:]filename [;comments ]
DD
= logical driver
number
d =
optional
drive specifier
filename = device driver file
comments =
optional
text string
The
logical device
number
may
be
one
or
two
digits.
The
following
convention
for
assigning logical device
numbers
to
graphics
devices assures the
maximum
degree
of
device
independence
within
programs.
1-10
CRT
11-20
Plotter
21-30
Printer
31-40
Other
devices
The
first
string
of
alphanumeric
characters
is
the
filename
of
the device driver.
It
may
be
preceded
by
a drive specifier.
If
the
filetype
extension
is
not
specified, ".SYS"
is
assumed.
Comments
are
optional.
A
comment
must
be
separated
from
the
filename
by
a
semicolon.
9-3

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