I have a HH Tiger that consists of a 6809 and a Z80, separate RAM for
each, also a graphics chip with its own RAM. The 6809 afaik is only
there to handle the disks, i/o and other peripherals.
One day i will be brave and plug it all in !!!
If anyone needs it i have some software for the Tiger. CP/M and some
others by the names of tigertel, tigerplan, tigerdem, tigerword and
M(icrosoft)? basic.
rog