Progress October II - Minor detail
Added 2016-10-10 12:55:14 +0000 UTCShortly after the last post, I noticed that there was quite an important shortcut taken to get the system ROM to start the game: the Z80 wasn't running properly.
The system ROM didn't give the familiar "Z80 ERROR" because I previously put a loopback register in NEO-D0 so that the 68000 read back the command it sent to the Z80, bypassing it completly. So in saying that everything was working well enough for the game to start, I lied ;)
The Z80 is now working properly, as well as NEO-D0 so that the Z80 really replies to 68000 commands 1 and 3. It is also able to talk to the YM2610 to init its registers.
Lie cancelled :)
