DOS Fn 1fH: Get Drive Parameter Block (current disk)
Compatibility: 5.0+
Expects: AH 1fH
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Returns: AL 0ffh on error, else...
0 no error and...
DS:BX address of a Drive Parameter Block for the default drive
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Info: Returns a block of information that is useful for applications
and utilities which perform sector-level access of disk drives
supported by device drivers.
This returns the pointer for the current default drive. A more
flexible version is DOS Fn 32H (which see for related details).
Warning: ■ Alters DS.
Versions: ■ This known to work starting with 3.0, but has only been
documented since 5.0.
See Also: Fn 32H (get drive parameter block)
INT 25H/26H
Drive Parameter Block
Disk Drive Functions
DOS Functions
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