Category: <b>BIOS</b>
<p>
<pre><b>INT 15 - newer PS/2; various BIOSes - GET CPU TYPE AND MASK REVISION</b>

	AH = C9h
	AL = 10h (may be required on some non-PS BIOSes)
Return: CF clear if successful
	    AH = 00h
	    CH = CPU type (see <a href=../../it/28/5.html>#00528</a>)
	    CL = mask revision (stepping level) (see <a href=../../it/29/5.html>#00529</a>)
	CF set on error
	    AH = status (80h,86h = function not supported)
Notes:	the BIOS must save DX at startup in order to be able to support this
	  call; PS/2 Models 56, 57, 90, and 95 are known to support it
	the PS/2 BIOS merely reads CMOS locations 190h (type) and 191h (rev)
	IBM classifies this function as optional
SeeAlso: AX=D100h,AX=DA92h,MEM 0040h:00BCh

</pre>