INT 1eH: Diskette Parameter Pointer


 This vector (0:0078) is a pointer to a table of diskette parameters that

 BIOS the diskette service INT 13H uses for a variety of diskette

 operations.



 This table includes values such as "head-settle time" and "step rate time"

 which have a tremendous effect on the speed of diskette I/O.



 It is possible to change some facets of diskette operation by creating a

 RAM-resident version of this table and modify selected parameters.  DOS

 creates a modified version of this table to improve diskette performance.

 Oddly, DOS restores the normal (typically slower) values when it restores

 control to the application program.



 See Diskette Parameter Table for a layout of the table.



See Also: BIOS Data Area

          ROM-BIOS Functions

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