[parc] syscalls cleanup, implement write
[parc] syscalls cleanup, implement write

cornell-brg/pydgin,futurecore/pydgin,moreati/pydgin,futurecore/pydgin,moreati/pydgin,cornell-brg/pydgin,futurecore/pydgin,moreati/pydgin,cornell-brg/pydgin,moreati/pydgin,futurecore/pydgin,cornell-brg/pydgin