libducky
libducky is a "C standard library"-like library, providing common functions and macros one would expect from a C standard library, but intended for use for development of applications for DuckyISA boards.
libducky is far from providing complete C standard library API developers can experience with GNU libc or Newlib. It contains functions and macros needed for the latest experiments with DuckyISA boards and the toolchain, and API is extended when I miss something.