GetIndADB
short devTableIndex; value identifying device table index
returns bus address (positive value ) or Error Code (negative value)
info is a parameter block whose relevant fields are:
<- devType SignedByte 1 0 Is it a mouse, keyboard, etc.? <- dbServiceRtPtr Ptr 4 2 Pointer to a service routine <- dbDataAreaAddr Ptr 4 6 Pointer to a data area devTableIndex is the index number on the device table of the entry whose address is
being sought.
Returns: a bus address byte for the device specified by the device table index. A negative number is returned if the search ends
without finding the device.