Dear Ben, thanks for your patch! I've merged it upstream with some changes.
I've made the output of Z180 instructions optional (it's now hidden behind a command-line flag). One of the features of z80dasm is that its output can be directly fed into z80asm to produce the same binary again. Your original patch unfortunately broke that, since a Z80 assembler doesn't know about Z180 instructions. See "z180" branch in git repo at https://www.tablix.org/~avian/git/z80dasm.git What Z180 assembler do you use? I want to test the output of the patched z80dasm against it. Best regards Tomaž