INT 13 - ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over.	 An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive.	 See also IDE. FIXED DISK - FORMAT UNIT (PSIBM PS/2, any model)
	AH = 1Ah
	AL = defect table entry count
	CL = format modifiers (see #00250)
	DL = drive (80h,81h)
	ES:BX -> defect table (see #00251), ignored if AL=00h
Return: CF set on error
	CF clear if successful
	AH = status (see #00234 at AH=01h)
Note:	if periodic interrupt selected, INT 15/AH=0Fh is called after each
	  cylinder is formatted
SeeAlso: AH=07h,INT 15/AH=0Fh


Bitfields for ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over.	 An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive.	 See also IDE. format modifiers:
Bit(s)	Description	(Table 00250)
 4	generate periodic interrupt
 3	perform surface analysis
 2	update secondary defect map
 1	ignore secondary defect map
 0	ignore primary defect map


Format of defect table entry [array]:
Offset	Size	Description	(Table 00251)
 00h  3 BYTEs	relative sector address (little-endian)
 03h	BYTE	flags and defect count
		bit 7: last logical sector on track
		bit 6: first logical sector on track
		bit 5: last logical sector on cylinder
		bit 4: logical sectors are pushed onto next track
		bits 3-0: number of defects pushed from previous cylinder
                                                                                

INT 13 - Future Domain SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer.	A host adapter connects the SCSI bus to the computer's own bus.  See also ESDI, IDE. CONTROLLER - GET SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer.	A host adapter connects the SCSI bus to the computer's own bus.  See also ESDI, IDE. PARTIAL MEDIUM CAPACITY
	AH = 1Ah
	CH = track (bits 8,9 in high bits of CL)
	CL = sector (01h to number of sectors/track for drive)
	DH = head
	DL = hard drive ID
Return: CF set on error
	AH = status code (see #00234 at AH=01h)
	CX:DX = logical block number of last quickly-accessible block after
		given block
Notes:	sends SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer.	A host adapter connects the SCSI bus to the computer's own bus.  See also ESDI, IDE. Read Capacity command with the PMI bit set to obtain the
	  logical block address of the last block after which a substantial
	  delay in data transfer will be encountered (usually the last block
	  on the current cylinder).  No translation to 512 byte sectors is
	  performed on the result if data is stored on the disk in other than
	  512 byte sectors.
	the TMC-950 does not support any Future Domain 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. calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=15h,AH=19h"SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer.	A host adapter connects the SCSI bus to the computer's own bus.  See also ESDI, IDE."