ZiLOG System 8000 Hardware Reference Manual page 309

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.
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