C compiler and dev kit for the z80 with assembly language libraries.
...Building software for standalone or generic Z80 systems:
https://www.z88dk.org/wiki/doku.php?id=libnew:target_embedded
Visit us at github for the current version with bugfixes and new features:
https://github.com/z88dk/z88dk
Z80-Pascal will be a cross-platform Pascal compiler for Z80 based devices, such as MSX, Spectrum-ZX, etc. Despite that it will be designed for old Z80 home devices (i.e. retro-programming) it will be useful for modern devices too.