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RMX/80
BASIC-SO
F-12
Configuring
DFS
on an iSBC
80/10
If
you're using DFS with a PROM-Based BASIC-80 on the iSBC
80/10,
you must
add a line
of
code to the GBASIC.CSD module distributed on diskette. This code
specifies use
of
the iSBC 201,202,204, or
206
disk controller.
For the
iSBC 201,202
or
206, add :
:Fl
:DIOSI0.LIB(VI0HDI),&
For the iSBC 204, add : :FI :DI0810.LIB(VIOHD4),&
just before the line :
:FI
:DFSUNR.LIB,&
in the
GBASIC.CSD module.
The BQMEM.ASM module contains code that polls the interrupt lines to find the
interrupt from the disk drives.
Be
sure this polling
is
initiated (refer to the
RMX/SO
User's Guide).
iSBC SO/10 System Clock
The iSBC 80/10 does not have an on-board clock. You should include the dummy
clock routine
CLOCK.OBJ when configuring
an
iSBC 80/10 BASIC-80. This
routine has two side effects:
I. With the full terminal handler, you may have to type a character before the
RMX/SO
BASIC-80 sign-on message prints.
2. There
is
no disk drive time out.
If
you reference a drive that doesn't have a disk
in it,
BASIC-80 will wait until one
is
inserted.
Your clock routines,
or
:FO:CLOCK.OBJ, should be added in the LINK command
of
GBOOT .CSD (if your BASIC
is
boot
loaded), or in GBASIC.CSD.
Adding BASIC-SO to
an
Existing RMX/SO Configuration
This section assumes
that
a user has an existing
RMX/80
configuration and wants to
add
BASIC-80 to it. the supplied assemblies configuration source and submit files
may be used for reference.
Configuration Requirements
Tasks. BASIC-80
is
called BQBAS, and the task that waits for control C
is
called
BQCONC. BQBAS should be given a stack length
of
64, a low priority such as 240,
and a default exchange
of
BQEXCH. BQCONC should be given a stack length
of
48, a priority higher than BQBAS (such as 200), and
an
initial exchange
of
RQWAKE. RQWAKE
is
the terminal handler exchange that receives a message
when control C
is
typed
at
the console.
If
a user-written
1/0
driver
is
to be used, it should be given an initial exchange
of
BQOPNX. The name, stack size, and priority may have whatever values are
appropriate for the task.
Initial Exchanges
BQEXCH should be declared as a public exchange.
If
a user-written
110
driver
is
to be included, BQOPNX should be declared as a
public exchange.
BASIC-SO