INT 21 - OS/286, OS/386 - SEGMENT CREATION AH = E8h AL = type 00h data segment 01h data window/alias 02h real segment 03h real window/alias CX:DX = size in bytes SI:BX -> start of desired memory block Return: AX = selector 06h shareable segment ??? Return: ??? SeeAlso: AH=E7h"OS/286",AH=E9h"OS/286"