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ZiLOG System 8000 - Page 309

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HRM
Zilog
HRM
CO~MAND:
SFMT
fmtsec
fspare
fbad
fstart
fintvl
DESCRIPTION:
If
NO
parameters
are
entered,
the
current
format
param-
eters
are
displayed.
If
ANY
parameters
are
entered,
these
parameter3
replace
the
format
parameters.
Subsequent
FMT,
FRD
and
FVOL
commands
use
the
newly
entered
parameters.
See
the
descriptions
of
these
commands
for
the
functions
of
the
format
parameters.
Entering
some commands
implicitly
resets
the
format
parameters
to
values
based
upon
the
drive
size.
The
commands
that
may
change
these
pa~ameters
are:
SDRIVE,
SIZE,
SUNIT.
EXAMPLE:
SFMT
33 FFFFH 20
This
command
sets
the
number
of
sectors/track
to
33,
the
spare
sector
to
ffffH
(out
of
range)
and
the
bad
sector
number
to
20.
A
subsequent
FMT
command
flags
sector
20
as
a
bad
sector.
COMMAND:
SOFFSET
offset
DESCRIPTION:
If
a
parameter
is
given,
its
value
replaces
the
current
drive
offsets
in
the
current
unit
packet.
This
value
remains
there
until
the
packet
is
cleared
(by
issuing
the
INIT
command)
or
until
a
subsequent
SOFFSET command
changes
it.
If
no
parameter
is
given,
the
current
offsets
are
shown.
EXAMPLE:
OFFSET
CH
OOOC
(hex)
replaces
the
current
value
in
the
OF
field
in
the
current
unit
packet.
COMMAND:
WCMD
cmdval
DESCRIPTION:
Writes
cmdval
to
the
SMD
Controller's
command
register.
A-78
Zilog
A-78

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