Int 1A/AX=B10Dh

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PCI BIOS v2.0c+ - WRITE CONFIGURATION DWORD

AX = B10Dh
BH = bus number
BL = device/function number (bits 7-3 device, bits 2-0 function)
DI = register number (multiple of 4 less than 0100h)
ECX = dword to write

Return:
CF clear if successful CF set on error AH = status (00h,87h) (see #00729) 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 entry were exchanged between the initial drafts of the specification and final implementation

See Also: AX=B10Ah - AX=B10Bh - AX=B10Ch - AX=B18Dh -

Category: Expansion Bus Bios - Int 1Ah - P

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