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Motorola EXORdisk II User Manual page 96

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CHAIN COMMAND
6.5 -- Messages
**
49 CHAIN ABORTED BY ILLEGAL OPERATOR
An
illegal Execution Operator
was
encountered in
the
intermediate file.
**
50 CHAIN ABORTED BY UNDEFINED LABEL
A
~MP
operator
was encountered which referenced
a
label
that
did
not exist
(Backward
references
are
treated as undefined labels>.
** 51 CHAIN ABORTED BY PREMATURE END OF FILE
An access to the intermediate
file
returned
an
end-or-iile
condition
when an input
re~uest
~as
m'ade
bq
a
program that
usas
invoked by
the
CHAIN
process.
All
input
that
is
expected
b~
the
prog~am
must
be
in the intermediate file.
6.6 Resuming an Aborted CHAIN Process
If
a
CHAIN process is aborted during the slecution phase
~or
any
reason,
the
CHAIN process can still be restarted.
Since the intermediate file is not deleted
until
the
CHAIN
process
has
been
successfully
completed,
this capability
eliminates the need t? recompile the original CHAIN file.
The special CHAIN command line:
CHAIN *
will restart the execution phase with the line
last
Tetched
from
the intermediate
~ile
(the line that caused the error).
For example,
if an assembly has been
invoked
bq
the
CHAIN
process
Tor
which a duplicate object file exists,
the CHAIN
process will normally be aborted.
The
operator
could
then
manually delete the duplicate file name and restart the CHAIN
process with the above special form of the command line.
If the failing command can never
succeed,
the
current
line
of
the intermediate rile can be bypassed, and the next
one used to resume the aborted
CHAIN
process
by
using
the
following special command line:
CHAIN N*
If
the
nelt line of the intermediate rile has been intended
as a keyin response ror the program (which Just failed),
then
the process will generally abort again immediately.
Bq using
the
"N*"
form of the special command line several times,
the
invalid
step
can
usually be bypassed and the CHAIN process
..../
resumed at a val id MDOS command line.
.J'
Page
06-16

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