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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) 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
Notes: 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
See Also: AX=B183h
Category: Expansion Bus Bios - Int 1Ah - P
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