Playing Atari ST Music on the Amiga with Zero CPU

A developer created a method to play Atari ST music on an Amiga computer using zero CPU by leveraging the Amiga's PAULA audio chip to emulate the Atari YM2149 sound chip, precomputing audio parameters into a data stream rather than calculating them in real-time. This technique allows the Amiga's processor to remain fully dedicated to graphics rendering while playing authentic Atari music, achieved by storing square wave samples and updating their parameters each frame without consuming CPU cycles.