IBM AT 5170 Technical Reference page 357

IBM Personal ComputeI'" MACRO Ass ... bl.1'" VersIon 2.00
1-'
ORGS ---- 06/10/85 COMPATIBILITY MODULE 06-10-85
311 PAGE
31.
;
--;----
- - -
-
- - - -- -- - - - - - - - - - - - - - - -
----------
-
-----------­
319 ; INITIALIZE DRIVE CHARACTERISTICS
320 ;
321 ; FIXED DISK PARAMETER TABLE
322
I
323
; - THE TABLE I S COMPOSED OF A BLOCK DEFINED AS:
32'
325
+0 II WORD) - MAXIMUM NUMBER OF CYLINDERS
326
+2 11 BYTE) - MAXIMUM NUMBER OF HEADS
321
+3 {I WOROI - NOt USED/SEE PC-XT
32. +5 (I WORD) - STARTING WRITE PRECOMPENSATION CYL
329
II BYTE) - NOT USED/SEE PC-XT
330
(I BYTE) - CONTROL BYTE
331
BIT 1 DISABLE RETRIES -OR ­
332
BIT 6 DISABLE RETRIES
333 BIT 3 MORE THAN 8 HEADS
33.
+9 13 BYTES)- NOT USED/SEE PC-XT
335 +12 (I WORD) - LANDING ZONE
336 + 14 (1 BYTE) - NUMBER OF SECTORS/TRACK
331 + 1 5 {I BYTE I - RESERVED FOR FUTURE USE
33.
339
- TO DYNAMICALLY DEFINE A SET OF PARAMETERS
3.0
BU I LD A TABLE FOR UP TO 15 TYPES AND PLACE
3.,
THE CORRESPOND I NG VECTOR INTO 1NTERRUPT 4 1
3.2
FOR DRIVE 0 AND
rNTE~RUPT
46 FOR DRIVE I.
3'3
3 ••
3.5
3.6 0401 FD_TBL:
341
3'.
;----- DRIVE TYPE 01
3.9
350 0401 0132
OW 03060 CYLINDERS
351 0403 04
08
0'0
HEADS
352
0404 0000 ow
0
353 0406 0080
ow
01280
WRITE PRE-COMPENSATION CYLINDER
35'
0408 00
08
0
355 0409 00 08
0 ; CONTROL BYTE
356 040A 00 00 00
08 0,0,0
351
0400 0131 OW
03050
LAND I NG ZONE
35. 040F II
08 110 SECTORS/TRACK
359 0410 00
08 0
360
361 1-----
OR I VE TYPE 02
362
363 0411 0261
OW 06150 ; CYLINDERS
36'
0413 04
08
0'0
; HEADS
365 0414 0000
OW 0
366 0416 012C
OW 03000 WRITE PRE-COMPENSATION CYLINDER
361 0418 00
DB 0
36. 0419 00
08
0
CONTROL BYTE
369 041A 00 00 00
08 0,0,0
310 0410 0267
OW 06150 LAND I NG ZONE
311
04JF
II 08
110
SECTORS/TRACK
312 0420 00
DB 0
313
31.
OR 1 VE TYPE 03
315
316
0421
0267
OW 06150 CYL I NDERS
311 0423 06
08 060 HEADS
31. 0424 0000
OW
0
319
0426
o
12C
OW 03000
WRITE PRE-COMPENSATION CYLII'I)ER
3.0 0428
00 08
0
3.'
0429 00
08 0 CONTROL BYTE
3.2 042A 00 00
08 0,0,0
3.3 0420 0267
OW
06150
LANDING ZONE
3.'
042F
II 08
110
SECTORS I TRACK
3.5 0430 00
08 0
3.6
3.' DRIVE TYPE 04
300
3.9 0431 03AC
OW 09400
I CYLINDERS
390 0433 08
08 0.0 I HEADS
391 0434 0000
OW 0
392 0436 0200
OW 05120 , WRITE PRE-COMPENSATION CYLINDER
393 0438 00
08 0
39. 0439 00
08
0 CONTROL BYTE
395
043A 00 00 00 08
0,0,0
396 0430 03AC
OW 09400 LAND I NG ZONE
391 043F II
08 110 SECTORS/TRACK
39. 0440 00
08
0
399
400
,-----
DRIVE TYPE 05
'01
402 0441 03AC
OW
09400
CYLINDERS
403 0443 06
08 060 HEADS
40'
0444 0000
OW 0
'05
0446 0200
OW 05120
WRITE PRE-COMPENSATION CYLINDER
.06 0448 00
08 0
401 0449 00
08 0
CONTROL BYTE
.0. 044A 00 00 00
08 0,0,0
409 0440 03AC
OW 09400 LAND I NG ZONE
410 044F II
08 110 SECTORS /TRACK
411 0450 00
08 0
412
413
DRIVE TYPE 06
41.
415 0451 0267
ow
06150 CYL J NOERS
41. 0453
O.
08 040 HEADS
411 0454 0000
OW 0
.,.
0456 FFFF
OW OFFFfH NO WRITE PRE-COMPENSATION
.,9 0458 00
08
0
'20
0459 00
08 0 CONTROL BYTE
421 045A 00 00 00
08 0,0,0
.22 0450 0267
OW 06150 LAND J NG ZONE
.23 045F II
08 110 SECTORS /TRACK
' 2 '
0460 00
08 0
425
426
DRIVE TYPE 07
'21
'2.
04pl
DICE
OW 04620 CYLINDER~
' 2 '
0463 08
08 0.0 HEADS
'30 0464 0000
OW 0
ORGS 5-185