INT 13 - FLOPPY - FORMAT TRACK                                                  
	AH = 05h
	AL = number of sectors to format
	CH = track number
	DH = head number
	DL = drive number
	ES:BX -> address field buffer (see #00235)
Return: CF set on error
	CF clear if successful
	AH = status (see #00234)
Notes:	on ATIBM PC AT or higher, call AH=17h first
	the number of sectors per track is read from the diskette parameter
	  table pointed at by INT 1E
BUG:	some old Compaq BIOSes have a bug when attempting to call this function
	  from Windows Standard Mode with EMM386 loaded.  A possible workaround
	  is to call this function from Real ModeOne of the operating modes of the 80286 and higher Intel processors, and the only operating mode of the 8088, 8086, 80186, and 80188 processors.  In this mode, all addresses used by programs correspond directly to real physical addresses (thus the full name, Real Address Mode) and there are no CPU-imposed protections between programs.  See also Protected Mode, Virtual-86 Mode. e.g. through DPMIsee DOS Protected-Mode Interface function
	  "Call Real ModeOne of the operating modes of the 80286 and higher Intel processors, and the only operating mode of the 8088, 8086, 80186, and 80188 processors.  In this mode, all addresses used by programs correspond directly to real physical addresses (thus the full name, Real Address Mode) and there are no CPU-imposed protections between programs.  See also Protected Mode, Virtual-86 Mode. function with FAR return" (see INT 31/AX=0301h).
SeeAlso: AH=05h"FIXED",AH=17h,AH=18h,INT 1E


Format of floppy format address field buffer entry (one per sector in track):
Offset	Size	Description	(Table 00235)
 00h	BYTE	track number
 01h	BYTE	head number (0-based)
 02h	BYTE	sector number
 03h	BYTE	sector size (00h=128 bytes, 01h=256 bytes, 02h=512, 03h=1024)
                                                                                

INT 13 - FIXED DISK - FORMAT TRACK                                              
	AH = 05h
	AL = interleave value (XT-type controllers only)
	ES:BX -> 512-byte format buffer
		the first 2*(sectors/track) bytes contain F,N for each sector
		   F = sector type
			00h for good sector
			20h to unassign from alternate location
			40h to assign to alternate location
			80h for bad sector
		   N = sector number
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = high bits of cylinder number (bits 7,6)
	DH = head
	DL = drive
Return: CF set on error
	CF clear if successful
	AH = status code (see #00234)
Notes:	AWARD ATIBM PC AT BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. and AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. 386sx BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
	for XT-type controllers on an ATIBM PC AT or higher, AH=0Fh should be called
	  first
	the IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ATIBM PC AT BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. and many other BIOSes use only the low four bits of
	  DH (head number) since the WD-1003 controller which is the standard
	  ATIBM PC AT controller (and the controller that IDE(Integrated Drive Electronics) A type of disk drive interface which essentially extends the PCIBM PC's expansion bus all the way to the drive and places the drive controller on the disk drive itself.	 See also ESDI. emulates) only supports
	  16 heads
	not all controller support sector types 20h and 40h
	under Windows95, an application must issue a physical volume lock on
	  the drive via INT 21/AX=440Dh before it can successfully write to
	  the disk with this function
SeeAlso: AH=05h"FLOPPY",AH=06h"FIXED",AH=07h"FIXED",AH=0Fh,AH=18h,AH=1Ah