INT 21 - DOS 5+ ROM - SET EXCLUSION REGION LIST AX = 6F03h DS:DX -> new exclusion region list (see #01773) Return: CF clear AL = 00h Notes: DOS saves only the pointer and assumes that the contents of the list are never changed, and that regions do not overlap if AL > 03h on entry, DOS returns CF set/AL=01h SeeAlso: AX=6F01h,AX=6F02h