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AX = 53B0h
BH = 07h
CX = 6941h ('iA')
Return:
CF clear if successful
AH = 00h (SMBus OK)
AL = device address
BX = device message
CF set if error
AH = error code (05h,07h,08h,09h,0Ah,86h) (see #00484)
Desc: Retrieves oldest queued critical message from an SMBus device to the host
Notes: Up to five messages are queued; if the queue is full, messages will be lost and error 09h returned
Category: Expansion Bus Bios - Int 15h - I
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