Returns a code indicating whether the resident portion of the ASSIGN utility has been loaded.
Call with:
AH = 02H
AL = subfunction
00H = Get Installed State
Returns:
If function successful
Carry flag = clear
AL = ASSIGN installed status
00H if not installed, ok to install
01H if not installed, not ok to install
FFH if installed
If function unsuccessful
Carry flag = set
AX = error code