I've checked with my little test application, that DIP switches in TT are mapped to address $FFFF9200. I guess the same is in Mega STe, I will check it later.
In STE/F030 that address is assigned to Extended Joystick Ports, but neither TT nor Mega STe has them.
TT DIP switches are numbered from 1 to 8. Each switch represents one bit in a byte $FFFF9200. Switch set to "ON" means "0". Switch 1 is the least significant bit (LSB), swith 8 the most significant bit (MSB).
The standard TT setup (below) is visible as value $3F
I think that the most appropriate place for that information is the Hardware Register List:http://www.atari-wiki.com/index.php/Ata ... er_Listing
Currently that page looks like hmm... a museum, snapshot of the past story and actually I wonder whether I should modify it
I see that Simbo discovered that a couple years ago
There is a description DIP switches http://gfa.atari-users.net/TT030/
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