Category: <b>no classification</b>
<br>Flags: available only in real or V86 mode<p>
<pre><b>INT 15 - Intel Pentium Pro BIOS UPDATE - BIOS UPDATE CONTROL</b>

	AX = D042h
	BL = 02h
	BH = function
	    01h enable update loading at initialization time
	    02h check whether update loading is enabled
	CX,DX,SI = segments of three 64K scratchpad areas for BIOS use
Return: CF clear if successful
	CF set on error
	AH = status (see <a href=../../it/32/5.html>#00532</a>)
	    00h successful
		BL = enabled/disabled flag
	    86h not implemented
	AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
	    00h successful
Notes:	this API must be called from actual real mode, not V86 mode
	at least 32K stack space must be available when this function is called
	there is no call to disable update loading due to security risks; the
	  BIOS setup can disable loading
SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=02h,AX=D042h/BL=03h
</pre>