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Int 15/AH=CAh - PS/2 Model 95 - READ/WRITE CMOS MEMORY -
AH = CAh
AL = function
00h read CMOS
Return: CL = value of CMOS location
01h write CMOS
CL = new value for CMOS location
BL = CMOS location (0Eh-3Fh)
Return: CF clear if successful
AH = 00h
CF set on error
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<h2>Int 15/AH=CAh
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<h3><font color=#C00040>PS/2 Model 95 - READ/WRITE CMOS MEMORY</font></h3>
<PRE>
AH = CAh
AL = function
00h read CMOS
<p><b>Return:</b><br>CL = value of CMOS location
01h write CMOS
CL = new value for CMOS location.
BL = CMOS location (0Eh-3Fh)<br>
<p><b>Return:</b><br>CF clear if successful
AH = 00h
CF set on error
AH = error code <a href="rb-1614.htm#Table530" tppabs="http://www.ctyme.com/intr/rb-1614.htm#Table530">(see #00530)</a>
</PRE>
<p><b>Note:</b>
Writes do not update the CMOS checksum
<PRE>
<p>
<a name=table530></a>
(Table 00530)
Values for CMOS read/write error code:
01h CMOS lost power or has invalid checksum
03h specified location out of range (too high)
04h specified location out of range (too low)
80h unsupported function (PC)
86h unsupported function (XT)
</PRE>
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