@teotwin
Im out of my league on this one, but from memory, the 68000 was internally 32bit bit, but external of the cpu the machines (A500 etc) were all 16bit. my guestimate is that the interface to the 68000 cpu was 16bit?
Yeah, that's why the Atari ST was called "ST", for Sixteen/Thirty-two. Later Atari machines which used full 32-bit CPUs were called TT.
