INT 21 U - DOS 5+ ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. - GET ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. SCAN START ADDRESS AX = 6F00h Return: CF clear AL = 00h BX = current ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. scan starting segment if function supported SeeAlso: AH=6Dh,AX=6F01h,AX=6F02h