0:412h                   Reserved (POST Status on PC Convertible)

Length: 1 byte

This byte is reserved by all machines but the PC Convertible and the
PCjr. The PC Convertible uses it to hold the status of the POST
(Power-on Self Test) operation. The PCjr uses it to count the number
of keyboard transmission errors encountered in the infrared link.


0:412h Reserved (POST Status on PC Convertible)