Int 21 Fn 3501 P - Flashtek X-32vm - Allocate Protected-mode Selector [E] AX = 3501h Return: CF clear if successful BX = new selector CF set on error (no more selectors available) Note: the new selector will be an expand-up read/write data selector with undefined base and limit See Also: AX=3502h,INT 31/AX=0000h