The Z80 microprocessor is used in old home computers, such as the ZX spectrum and MSX, and in several newer devices, such as the TI-83 graphical calculator and (a stripped down version) in the (original) GameBoy.

This assembler is meant for developers who write code (in assembly) for such devices.

Features include: * macros * including other sources * complex expressions (similar to bash) * labels of unlimited length * conditional compilation depending on expressions