INT 31 P - CauseWay - "GetMemDOS" - ALLOCATE CONVENTIONAL MEMORY AX = FF21h BX = number of paragraphs to allocate Return: CF clear if successful AX = real-mode segment of allocated block DX = initial selector for block CF set on error AX = DOS error code (see #01680 at INT 21/AH=59h/BX=0000h) BX = size of largest available block Note: if the requested size is greater than 64K, contiguous selectors will be allocated, one for each 64K; for 32-bit applications, the first selector's limit will be set to the size of the entire block, while that selector will have a limit of 64K for 16-bit applications. All selectors after the first one have a limit of 64K except the final one SeeAlso: AX=FF22h,AX=FF23h,INT 21/AH=48h