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Licensing
^^^^^^^^^

This directory contains miscellaneous NuttX add-ons and utilities.
NuttX is retained separately for maintenance and licensing reasons.
NuttX has a BSD-style license.  However, the contents of this
directory have have other license restrictions.

The licensing of the components of this directory are summarized
below:

  buildroot:
    Description:  GNU toolchain build environment.  Derived from
      http://buildroot.uclibc.org/
    License: GPLv2

  pascal:
    Description:  Pascal compiler with NuttX runtime add-on.
    License: BSD
  sims:
    Description:  This is a repository of instruction set simulators
      that were used to verify NuttX.  The licensing of the
      instruction set simulators vary

    sims/z80sim:
      You are well comecom to use the source files provided in 
      this directory for any purpose.  However, the core of the Z80
      emulation is based on a proprietary-but-free-to-use
      instruction set emulator.  That emulation is not included
      in this directory, but is automatically downloaded when
      z80sim is built.