81 De (noise+pitch)
41 Ac (Square+pitch)
41 Aa (Square+pitch)
80 Cf (Noise+pitch)
FF 04 (return to step 4)
The above is a simple snare drum. You can do the same in CS64 using two StepSequencers. One for the wave switching and the other for transposing the various steps. Aaah good times
Edit: Respect to the people that wrote music directly into assembler.

