ZiLOG System 8000 Hardware Reference Manual page 290

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HRM
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3)
Some commands are discussed together for
conveni-
ence.
In
these cases, a slash (I) separates the
commands.
Ex ampl e :
a)
DINT
1
EINT
b)
SWSEG wseg
1
SWOFF woff
In each example, there are two distinct
They
are
discussed
together
because
related in function.
commands.
they
are
4)
Memory addresses may be
shown
with
the
segment
enclosed
in
<
and
>,
with the offset immediatly
following.
<1>0 refers to segment 1, offset
o.
5)
Command parameter
values
retain
their
previous
values
until
changed.
Most
parameters
have
default values, described in the command
descrip-
tions
below.
Some parameters are shared by more
than one command.
Example:
The following commands all share the
write buffer start address parameters,
wseg and wo ff:
a) WR
wseg woff Inth cyl head sec
b) SWSEG wseg
c) SWOFF wo ff
6)
Parameter defaults are:
rseg
.-
1
wseg =
2
dseg =
desseg =
1
srcseg =
2
rndseg =
2
rramseg =
1
wramseg =
2
putseg =
2
fseg
.-
2
roff
.-
0
woff =
0
doff =
0
deso ff =
0
srcoff =
0
rndoff
-= 0
rramoff =
0
wramoff =
0
putoff =
0
foff ..
0
fpat = ffff
Inth
.-
512
rlnth =
512
cmplnth =
512
unit _.
0
cyl =
0
head =
0
sec =
0
maxseg = 3
offset val =
0
intvee =
0
fstart =
0
fintvl-=
1
rramlnth =
2048
wramlnth =
1280
7)
Some parameters are
dependent
upon
the
current
disk
unit.
SMD
disks have different numbers of
A-59
Zilog
A-59

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