nuttx/configs/ez80f910200zco/nsh
..
.gitignore
appconfig
defconfig
Make.defs
nsh.linkcmd
nsh.zdsproj
README.txt
sample-run.txt
setenv.sh

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

nsh.zdsproj is a simple ZDS-II project that will allow you
  to use the ZDS-II debugger.