INT 4D - TI Professional PCIBM PC - DISK - SET STANDARD DEVICE INTERFACE TABLE AH = 08h DL = drive number (00h-03h) AL = drive type 00h single-sided 48 tpi (40-track, 8 sectors, 512 bytes/sector) 01h double-sided 48 tpi (40-track, 8 sectors, 512 bytes/sector) 02h single-sided 96 tpi (80-track, 8 sectors, 512 bytes/sector) 03h double-sided 96 tpi (80-track, 8 sectors, 512 bytes/sector) Return: nothing??? SeeAlso: AH=00h,AH=09h