nuttx/boards/z80/z8/z8f64200100kit/configs/ostest

README.txt
^^^^^^^^^^

ostest.zfpproj is a simple ZDS-II project that will allow you
  to use the ZDS-II debugger.  Before using, copy the following
  files from the toplevel directory:

  nuttx.hex, nuttx.map, nuttx.lod

  to this directory as:

  ostest.hex, ostest.map, ostest.lod