Category: <b>memory management</b>
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<pre><b>INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET</b>

	AH = 5Bh
	AL = subfunction
	    00h get alternate map register set
		Return: BL = current active alternate map register set number
			ES:DI -&gt; map register context save area if BL=00h
	    01h set alternate map register set
		BL = new alternate map register set number
		ES:DI -&gt; map register context save area if BL=0
	    02h get alternate map save array size
		Return: DX = array size in bytes
	    03h allocate alternate map register set
		Return: BL = number of map register set; 00h = not supported
	    04h deallocate alternate map register set
		BL = number of alternate map register set
Return: AH = status (00h,80h,81h,84h,8Fh,9Ah-9Dh,A3h,A4h) (see <a href=../../it/56/36.html>#03656</a>)
Note:	this function is for use by operating systems only, and can be
	  enabled or disabled at any time by the operating system

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