Category: DOS kernel
INT 21 - MS-DOS 7.0+ - GENERIC IOCTL - GET FIRST CLUSTER AX = 440Dh CX = 0871h / 4871h (category code 08h for FAT12/16, 48h for FAT32; minor code 71h) BX = filename character set (see #01578) DS:DX -> ASCIZ pathname for file or directory Return: CF set on error AX = error code (01h,02h,etc.) (see #01680 at AH=59h/BX=0000h) CF clear if successful DX:AX = first cluster number Note: this function finds any file or directory regardless of attributes, except that it will not find volume labels SeeAlso: AX=440Dh"DOS 3.2+",AX=440Dh/CX=086Ch,#01352