)
Values for EPP BIOS function status:
 00h	successful
 02h	unsupported command/feature
 03h	unsupported parallel port
 05h	unsupported in current mode
 06h	invalid subfunction
 07h	already ???
 20h	multiplexor not present (AMI)
 40h	multiplexor not present
 41h	multiplexor currently locked
 80h	I/O timeout
 FFh	invalid/unsupported function
SeeAlso: #00632,#00633