INT 13 - HARD DISK - READ LONG SECTOR(S) (AT and later)
AH = 0Ah
AL = number of sectors
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second)
ES:BX -> data buffer
Return: CF clear if successful
CF set on error
AH = status (see AH=01h)
AL = number of sectors transferred
Notes:  this function reads in four to seven bytes of error-correcting code
along with each sector's worth of information
data errors are not automatically corrected, and the read is aborted
after the first sector with an ECC error
used for diagnostics only on PS/2 systems
SeeAlso: AH=0Bh

See also: 1302

130A - HARD DISK - READ LONG SECTOR(S) (AT and later)