Changes
PPI chip is [http://www.cpcwiki.eu/index.php/VHDL_implementation_of_the_8255_PIO 8255 CPCWiki] one, patched.
[[PWM ]] chip is [http://www.fpga4fun.com/PWM_DAC.html PWM_DAC fpga4fun] one, patched in order to get high sound quality (my [[PWM ]] has two clocks in entry)
== And thanks ==
