Hi Ruud, > A0 = 0 : D0..7 is written with data from D0..7 of C64 > D8..15 is written with invalid data > A0 = 1 : D0..7 stays the same > D8..15 is written with data from D0..7 of C64 > I don't think this will cause problems with memory but what about I/O: could > any harm be done by writing invalid data to D8..15 the first time? Here I > merely have the IDE-interface in mind. Although I don't know an example, I would *highly* assume so (at least in respect with compatibility with different cards!). Why don't you just start an 8 bit transfer in this case, so D8...D15 will not contain any invalid data? Spiro. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
Archive generated by hypermail 2.1.1.