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Int 1A/AX=B103h - PCI BIOS v2.0c+ - FIND PCI CLASS CODE -
AX = B103h
ECX = class code (see also #F0085,#00878)
bits 31-24 unused
bits 23-16 class
bits 15-8 subclass
bits 7-0 programming interface
SI = device index (0-n)
Return: CF clear if successful
CF set on error
AH = status (00h,86h) (see #00729)
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<h3><font color=#C00040>PCI BIOS v2.0c+ - FIND PCI CLASS CODE</font></h3>
<PRE>
AX = B103h
ECX = class code (see also #F0085,#00878)
bits 31-24 unused
bits 23-16 class
bits 15-8 subclass
bits 7-0 programming interface
SI = device index (0-n)<br>
<p><b>Return:</b><br>CF clear if successful
CF set on error
AH = status (00h,86h) <a href="rb-2371.htm#Table729" tppabs="http://www.ctyme.com/intr/rb-2371.htm#Table729">(see #00729)</a>
00h successful
BH = bus number
BL = device/function number (bits 7-3 device, bits 2-0 func)
86h device not found
EAX, EBX, ECX, and EDX may be modified
all other flags (except IF) may be modified
</PRE>
<p><b>Notes:</b>
This function may require up to 1024 byte of stack; it will not enable
interrupts if they were disabled before making the call.
The meanings of BL and BH on return were exchanged between the initial
drafts of the specification and final implementation.
All devices sharing the same Class Code may be enumerated by
incrementing SI from 0 until error 86h is returned
<p><b>See Also:</b>
<a href="rb-2396.htm" tppabs="http://www.ctyme.com/intr/rb-2396.htm">AX=B183h</a>
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<b>Category: <a href="cat-014.htm" tppabs="http://www.ctyme.com/intr/cat-014.htm">
Expansion Bus Bios</a>
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Int 1Ah</a>
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