I think they just swap D1 & D2, so effectively it just swaps the external over. I'm guessing the layout guy couldn't remember which one was meant to be which so hedged his bets. :-) -----Original Message----- From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Gerrit Heitsch Sent: 26 January 2012 17:47 To: firstname.lastname@example.org Subject: Re: Cassette Sense on Plus/4 On 01/26/2012 10:19 AM, Rob Clarke wrote: >> From memory, those jumpers control which data line is used as 'select >> for > the two joystick ports. Quite why this was only on the C16 board is > equally baffling. Especially since you can't swap them, the 4 directions are the same on both ports, but the fire buttons are not. Gerrit Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2012-01-26 17:00:51
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