A fully featured Small-C rather than ANSI C implementation for the SAM Coupé with a WIMP based IDE and the Zeus Assembler for compilation.
Additional Libraries called Sam VISION were released commercially to add the WIMP interface to SAM C programs.
Z88DK is being developed to support the SAM and thus SAM C programs, details of support are held at github.com/z88dk/z88dk/wiki/SAM-Coupé-Library-Reference
Compilation can be vastly speeded up by utilising a Ram Disk to hold the libraries that are accessed in the first pass of compilation.