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DISK Command Charts
of Behavior
The
following
charts
describe
the
exact
behavior
of
[otSr]
under
all
circumstances.
For
each
disk
state shown
in the
left
column
and each
text
state
in
the
top
row,
the
cone-
sponding
entry in
the
chart
shows what the Cat
will
do
in
this
situation.
For
example,
if
the
disk
is
dffirent
(not the
one that matches the on-screen
text)
and the
text
is
dirty,
lDlSKl
will
beep,
and
the [EXPLAIN] screen
will
tell you
that
the
disk
and
text
are
different.
The terms
used
in
these
charts
are
defined below.
■堅調
I DISK Command
Text
is
clean
Text is
dirty
Text is
empty
酬
ｋ
ｅ
ａｍ
ｉ ｓ ｋ
Ｓ
ｄ
Backup
disk
Direrent
disk
Blank
disk
NonⅢ
Cat
disk
Record
Play back
Record
fresh
id
Beep
non-Cat
Record
Record
Beep
different
Record
fresh
id
Beep
non-Cat
Play
back
Play
back
Play
back
Beep
empty
Beep
non-Cat
困□■■層面函面
BaCkup DISK Command
Text
is
clean
。 ｎ ｓ
ｙ
Ｔ ｅ ｘ ｔ
叩
躙
ｄ ｉ ｒ ｔ ｙ
Blank
Backup
disk
Non-blank
Peek
disk
erase
option
Backup
Beep
empry
Peek
Beep
erase
option
empty
Definitions
Backup
(v)
Record the text
without
assigning
it
a new
identification
number;
this
creates
two
exactly identical
disks
as
far
as
the
Cat
is concemed.
Blank
Nothing
recorded on
the
disk.
Clean
The text is safely recorded on
a
disk;
the
cursor
is
happy.
Different
The
text
on the
screen
did not originate
from
the
disk
in
the
drive;
the
screen-text
and disk-text
are
unre-
lated.
dffirent
The
[EXPLAIN] message
tells
you
the Cat
cannot
record
or play
back
because
the
text on the
screen
is
unrelated
to
the
disk
in
the
drive: thev
are
different.
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