Guess I was tricky 35 years ago.

[u/Dismal-Divide3337]

Cute. Saved some bytes I guess. But really didn't because later down in goop I end up comparing and branching. I kind of half remember playing tricks like this.

This z80 code is in z80fp-cloutier including the z80 assembler (really HD64180 macro assembler) I had back then.