Most of this port behaves exactly like the ZX Spectrum one, with some fix to solve the compatibility problems.
For the basic functions please refer to the ZX Spectrum platform docs for further informations.
zcc +ts2068 -lndos -lm -create-app program.c
-or-
zcc +ts2068ansi -lndos -lm -create-app program.c
Extra functionalities are available for such platform, notably the Sprite Pack 1 library supporting the 512×192 graphics resolution.