ZiLOG System 8000 - Page 297

HRM Zilog
log. block = cyl * (maxhead * maxsec)
+ (head * maxsec)
+ sec
HRM
Logical block numbers may exceed 64K; they are double
words.
This command is useful for filling each sector on the
disk with data that is both unique and identifies the
sector.
EXAMPLE:
«SALL 0 0 O)(SWS 3)(SWO O)(SLNTH 512))
589(7(32«FBLK)(WRI)(IBLK 1))))
The second command line writes the unique logical block
number to each sector on an 80 megabyte disk with 589
cylinders, 7 heads and 32 active sectors/track.
COMMAND: FILL fseg foff flnth fpat
DESCRIPTION:
If NO parameters are entered, this command fills the
current write buffer beginning at <wseg>woff with lnth
bytes of the word pattern: fpat.
If ANY parameters are entered, this command fills the
buffer at <fseg>foff with flnth bytes of the word pat-
tern: fpat.
EXAMPLE:
WR 3 0 3000
FILL 1 0 512 AAAAH
FILL
The first FILL fills <1>0 with 512 bytes of 'AAAA's.
The second FILL fills <3>0 with 3000 bytes of 'AAAA's.
COMMAND: FMT osec cyl head sec
DESCRIPTION:
Formats nsec sectors beginning at the disk address:
cyl, head, sec. FMT uses the format parameters set in
the SFMT command: fmtsec, fspare, fbad, fstart and
fintvl.
A sector can be flagged as spare or bad if its logical
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Zilog
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