INT 13 - FIXED DISK - FORMAT TRACK AND SET BAD SECTOR FLAGS (XTIBM PC XT,PORTIBM PC Portable (uses same BIOS as XT)) AH = 06h AL = interleave value CH = cylinder number (bits 8,9 in high bits of CL) CL = sector number DH = head DL = drive Return: AH = status code (see #00234) Note: 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 SeeAlso: AH=05h"FIXED",AH=07h"FIXED"