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Int 15/AX=D042h/BL=02h - Intel Pentium Pro BIOS UPDATE - BIOS UPDATE CONTROL -
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 #00532)
00h successful
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<h3><font color=#C00040>Intel Pentium Pro BIOS UPDATE - BIOS UPDATE CONTROL</font></h3>
<PRE>
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<br>
<p><b>Return:</b><br>CF clear if successful
CF set on error
AH = status <a href="rb-1623.htm#Table532" tppabs="http://www.ctyme.com/intr/rb-1623.htm#Table532">(see #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
</PRE>
<p><b>Notes:</b>
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
<p><b>See Also:</b>
<a href="rb-1622.htm" tppabs="http://www.ctyme.com/intr/rb-1622.htm">AX=D042h/BL=00h</a> - <a href="rb-1624.htm" tppabs="http://www.ctyme.com/intr/rb-1624.htm">AX=D042h/BL=02h</a> - <a href="rb-1625.htm" tppabs="http://www.ctyme.com/intr/rb-1625.htm">AX=D042h/BL=03h</a>
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