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CHAPTER 28
28.
ERROR MESSAGES
This
chapte~
contains
a summary and an explanation of
all of the standard error
messages
that
can
be
displa~ed
during
the
operation
of
MOOS.
Standard
error
messages
include those displayed by the diskette
controller
firmware
during
initialization}
the
PROM
IIO
messages that can be
displayed when any fatal diskette
e~~or
is
detected
by
an
MOOS
command
or
overlay}
and
the standard error messages
displayed by the commands themselves.
The
standard
command
error
messages
are
recognizable by the fact that a pair of
asterisks followed
by
two-digit reference number is displayed
before
the actual message.
Explanations of messages without
the two-digit number should be looked
for
in
the
detailed
command descriptions in chapters 3-23.
28. 1 Di s
x
ette Con tr,o 11 er Errors
The
diskette
controller errors can be displayed in two
forms
depending
on
the
phase
MOOS
is
in.
During
the
initialization
phaseJ
the error messages from the tontroller
take on the form of the letter
"E"
followed
by
a,
decimal
digit
0-9.
Control is given to the debug monitor after the
message
is
displayed.
Aft~r
MOOS
has
been·
properly
initialized,
the diskette
cont~oller
e~rors
are identified
by
the text
npROM
110
ERROR".
Control is returned to
the
MDOS
command interpreter.
28.1.1 Errors during initialization
If
for
some
reason
the
drive
electronics
are
not
properly initializedJ
or if the diskette in drive zero cannot
be
read
properly
to
load
the
Bootblack
or the resident
operating system}
then a two-character error message will
be
displayed
and'
control
returned
to the debug monitor.
The
function resulting in the error has been
tried
five
times.
After the fifth failureJ
the error message is displayed.
Message
El
Probable Cause
A
cyclical
redundancy
check
(eRe)
error was detected while reading
the
resident
o~erating
system
into
memory.
Page
28-01
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