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INT 13h, 1Ah (26) Format ESDI Unit PS/2
Formats IBM ESDI Fixed Disks
On entry: AH 1Ah
AL Relative Block Address (RBA) defect
table block count
= 0 . No RBA table
> 0 . RBA table used
ES:BX Address of RBA table
CL Modifier bits:
Bit 7 Must be 0
Bit 6 Must be 0
Bit 5 Must be 0
Bit 4 1 . Perform periodic interrupt
(interrupt formatting
after every cylinder so
host program can show
formatting progress)
Bit 3 = 1 . Perform extended surface
analysis
Bit 2 = 1 . Update secondary defect map
Bit 1 = 1 . Ignore secondary defect map
Bit 0 = 1 . Ignore primary defect map
DL Drive Number (Bit 7 = 1 for hard disks)
---------------------------------------------------------------------------
This service is for formatting high-capacity PS/2 hard disks. The
software for this process is provided in the ESDI adapter for these
disks. You have the option of requesting automatic interruptions after
every cylinder is formatted (which means your program can list the
cylinder number currently being formatted).
This format may take more than an hour to complete, and is usally only
performed by operating system software.
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