Figure 2-13. Format Track Data Format - Honeywell 6000 Series Reference Manual

Disk storage subsystem
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FORMAT TRACK
This instruction designates a complete track as good, defe(otive, or alternate.
It
records all headers, address Il1arks, gaps, and data fields on a given track, beginning at
the index mark. The format of the data sent to the control is shown in
Figure 2-13.
SEEK AIJOIlliSS VERIFICATION IJATA
l'i 16
23 24
11
32
3S
CYLINDER
HEAD
llEAD
NUMBER
NUMBER
NUMBER
WORD
1
RO COUNT FIELD
0
3 4
11 12
19 20
27 28
3S
WORD
2
1
MB ,"
1
FLAG
1
CYLINDER
1
CYLINDER
1
HEAD
1
NUMBER
RO OATA FIELll
0
7 8
IS 16 17 18
23 24
31 32
35
I
1
RECORD
1MB/I
CHECK
I
b
b
I
HEAD
NUMBER
MHZ
MHZ
CHARACTER.
WORD 3
ItO
IJ.~TA
FlELI)
0
3 4
11 12
19 20
27 28
35
WORD 4
IMBZ
"I
DATA
1
DATA
1
DATA
1
DATA
1
RO DATA FIELD
0
7 8
15 16
23 24
31 32
35
WORD 5
I
DATA
1
DATA
DATA
DATA
0000
a
Track lntlicator
b
Must be Zero
Figure 2-13. Format Track Data Format
REQUEST STATUS
I
I
This instruction results in sending the control-held status (or the device-
held status) for the last activity on the given logical channel to the EUS.
RESET STATUS
This instruction resets any existing Data Alert, MPC Device Data Alert, and End-of-
File major status held in the control for the given logical channel and returns to
device-held status to the EUS.
The invalid instruction sequence substatus also is reset.
WRITE CONTROL REGISTER
This instruction allows clearing the statistics tallies or presetting SOIl1e value into
the tallies.
Z-IS
DB3?

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