CP/M.  Sep. 1994.  Walnut Creek CDROM.
Z80 Simulator Assembly
path: \emulator\unix\z80pack\z80src
--------------------------------------
Name           Size      Date    Description
============ ========  ========  =====
FLOAT.ASM       20188  07-09-92  
Z80DIS.ASM      21660  07-09-92  
Z80MAIN.ASM       974  07-09-92  
Z80OPS.ASM       9751  07-09-92  
Z80TEST.ASM      8081  07-09-92