This Atari ST works in a way that’s predictable to him. No other platform can provide that feature. Changing the compiler/IDE might cause unexpected behavior or silently mess up 36 years of data.

At this time the Atari ST was impressive hardware, with 1MB RAM and a 70Hz monitor (as Bos notes, most PCs of the time offered only 512Kb RAM), and in Europe the machine was seen as a serious ...