INT 13H (0x13)
Function 09H (0x09) >> Initialize fixed disk characteristics
Call with: AH = 09H
DL = drive
80H-FFH fixed disk
On the PC/XT Vector for INT 41H
must point to disk parameter block or, on the PC/AT and PS/2
Vector for INT 41H must point to disk
parameter block for drive 0
Vector for INT 46H must point to disk
parameter block for drive 1
Returns: If function successful
Carry flag = clear
AH = 00H
If function unsuccessful
Carry flag = set
AH = status
Comments:
This function initializes the fixed disk controller for subsequent I/O operations, using the values found in the ROM BIOS disk parameter block(s). The function is supported on fixed disk only. The parameter block format for PC and PC/XT fixed disks is as follows:
Byte(s) |
Contents |
00H-01H |
Maximum number of cylinders |
02H |
Maximum number of heads |
03H-04H |
Starting reduced write current cylinder |
05H-06H |
Starting write pre compensation cylinder |
07H |
Maximum ECC burst length |
08H
|
Drive option
Bit(s) |
Significance (if set) |
0 – 2 |
drive option |
3 – 5 |
reserved (0) |
6 |
disable ECC entries |
7 |
disable disk-access retries |
|
09H |
Standard time-out value |
0AH |
Time-out value for format drive |
0BH |
Time-out value for check drive |
0CH-0FH |
Reserved |
| Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi |
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Publishers of the Book
Number of Pages
ISBN
Price of the Book
|
BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)
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