Changes
8255
,/* 8255 Part numbers used in the CPC during it's lifetime */
* NEC D8255AC-5
* Toshiba TMP8255AP-5
All of these are almost identical in their operation. It is possible to detect each version by writing and then reading from the ppi control i/o port. Each can give a different pattern of values that are read back.
== The 8255 in the CPC ==
