I  IBM Personal Computers
      A. Code Library
	 1. Algorithms
	    g) Disk Drive Controller
Disk Buffer Flush                                                Int\21f\0D
Disk Drive Parameter Block Read (any drive)                      Int\21f\32*
Disk Drive Parameter Block Read (default drive)                  Int\21f\1F*
Disk Drive Return current                                        Int\21f\19
Disk Drive Select                                                Int\21f\0E
Disk File Allocation Table Get  (any drive)                      Int\21f\1C
Disk File Allocation Table Get  (default drive)                  Int\21f\1B
Disk Free Space Get                                              Int\21f\36
Disk Serial Number                                    (DOS 4.0)  Int\21f\69
Disk Transfer Address Get (DTA)                                  Int\21f\2F
Disk Transfer Address Set (DTA)                                  Int\21f\1A
Disk Verification Status Get (VERIFY)                            Int\21f\54
Disk Verification Status Set (VERIFY)                            Int\21f\2E
Disk Hardware Interrupt Vector (hard disk)			 Int\0D
Disk Hardware Interrupt Vector (floppy disk)			 Int\0E
Disk BIOS Functions						 Int\13
Bootstrap Loader						 Int\19
Disk Drive Parameters (floppy drive)				 Int\1E
Disk Absolute Sector Read					 Int\25
Disk Absolute Sector Write					 Int\26
Disk Hard Disk BIOS						 Int\40
Disk Drive Parameters (hard disk #1)		     (except PC1)Int\41
Disk Drive Parameters (hard disk #2)		     (AT, PS/2)  Int\46
Hard Disk Controller IRQ14 (AT, PS/2) 			 Int\76