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DUMP COMMAND
11.2 -- DUMP Command Set
c
a
<st,..>
11. 2. 1 Gu
i t --
G
"c" is a one
or
two
digit
hexadecimal
number.
II
a
II
i
san ASC I I c h a
1"
act e
1" •
"<$t~>"
is a
string
of
elements separated
by
commas.
Each
element can be a
"C'I
or
a
gr-oup
~uotes.
_ l !
ur
tt...,Jf_
a
::»
enclosed
"<cr>" is a carriage
retu~n.
.ioU
doubl~
The G command
1S
used
to
terminate
DUMP
and
return
cootT'O
1
to
MDOS.
Th e rOT'mat
Or
th e
G
command iss imp
1 y
th e
letter
"Q".
Any information in the sector
change
buffer
is
lost.
The
G
command is valid in either
mode
of operation.
If
a
¥iIe is openl
i t
is unaffected
by
the
execution of the G
command.
11.2.2
Select logical unit --
U
.
The U command is used to select the logical unit number.
The
format of theU command is
U
i
~here
"i"
can be any of the digits
0-3.
The
U
command
is
valid
in
either
mode of operationi hOUlever,
ii=
the current
mode of operation
is
the Logical ModeJ
then the file that
is
open
~ill
be
automatically closed.
After the U command is
executedl the
Ph~sical
Mode of operation will be
in
effect.
The
sector
address associated with the sector change
bufTe~
is invalidated
by
the U command.
If DUMP was invoked with only
a
logical unit
numbe~
on
the
command
line, and
if
a diskette was not in
the
drive at
the
time
DUMP was invoked, then the U command
must
be used to
restore the diskette drive after
a
diskette has been inserted
into the drive.
If
this procedure is not
followed,
timeout
errors
may
occur
on that drive since the head may not have
been properly positioned to
c~linder
zeroo
11.2.3
Open diskette
file --
a
The
a command is used to open a
file
and
thereby
enter
the "Logical
Mode of operation.
"The
f~rmat
of the
a
command
is
o
<name)-
Page
11-04
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