Slightly wrong as to the details, but gets the controller trying to output.
Slightly wrong as to the details, but gets the controller trying to output.

At an initial look, I think the shift register should end up on the data bus for all odd accesses. Need to investigate more thoroughly.

TomHarte/CLK,TomHarte/CLK,TomHarte/CLK,TomHarte/CLK,TomHarte/CLK