189 lines
7.2 KiB
Plaintext
189 lines
7.2 KiB
Plaintext
apps/interpreters README file
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=============================
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This apps/ directory is set aside to hold interpreters that may be
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incorporated into NuttX.
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ficl
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----
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This is DIY port of Ficl (the "Forth Inspired Command Language"). See
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http://ficl.sourceforge.net/. It is a "DIY" port because the Ficl source
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is not in that directory, only an environment and instructions that will
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let you build Ficl under NuttX. The rest is up to you.
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micropython
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-----------
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This is a port of a build environment for Micro Python:
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https://micropython.org/
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Configuration Options:
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CONFIG_INTERPRETERS_MICROPYTHON - Enables support for the Micro Python
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interpreter
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CONFIG_INTERPRETERS_MICROPYTHON_URL - URL where Micro Python can be
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downloaded. default "https://github.com/micropython/micropython/archive".
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There are more recent snapshots at https://micropython.org/download/
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CONFIG_INTERPRETERS_MICROPYTHON_VERSION - Version number. Default "1.3.8"
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CONFIG_INTERPRETERS_MICROPYTHON_APPNAME - Executable name. Only needed
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if CONFIG_NSH_BUILTIN_APPS=y. Default: "micropython"
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CONFIG_INTERPRETERS_MICROPYTHON_STACKSIZE - Interpreter stack size. Only
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needed if CONFIG_NSH_BUILTIN_APPS=y. Default: 2048
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CONFIG_INTERPRETERS_MICROPYTHON_PRIORITY - Interpreter priority. Only
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needed if CONFIG_NSH_BUILTIN_APPS=y. Default: 100
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CONFIG_INTERPRETERS_MICROPYTHON_PROGNAME - Program name. Only needed
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if CONFIG_BUILD_KERNEL=y. Default: "micropython"
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NOTE that Micro Python is not included in this directory. Be default,
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it will be downloaded at build time from the github . You can avoid
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this download by pre-installing Micro Python. Before building, just
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download Micro Python from:
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https://micropython.org/download/
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https://github.com/micropython/micropython/releases
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Or clone from the GIT repository at:
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https://github.com/micropython/
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https://github.com/micropython/micropython
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The Micro Python should be provided as a tarbll name:
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apps/interpreters/micropython/v$(CONFIG_INTERPRETERS_MICROPYTHON_VERSION).tar.gz
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and the unpacked code should reside in directory at:
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apps/interpreters/micropython/micropython-$(CONFIG_INTERPRETERS_MICROPYTHON_VERSION)
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This port was contributed by Dave Marples using Micro Python circa
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1.3.8. It may not be compatible with other versions.
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NOTES:
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1. Micro Python will not build on Windows with a Windows native toolchain
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due to use of POSIX paths in the Micro Python build system. It should build
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correctly on Linux or under Cygwin with the NuttX buildroot tools.
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2. Micro Python will not run correctly on a 64-bit target (such as the NuttX
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simulation on a 64-bit platfform). In that case it generates assertions
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like:
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OverflowError: long int not supported in this build
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This change to mpconfigport.h is a partial work-around but does not solve
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all issues:
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-#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
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+#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_LONGLONG)
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Someday it will probably be necessary to autogenerate the mpconfigport.h
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header file with the correct properties for the target system.\
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3. Can't fine alloca.h? With GCC compilers you may be able replace the
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inclusion of alloca.h in mkconfigport.h with:
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#define alloca(a) __builtin_alloca(a)
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4. Micro Python needs the math library libm.a. The math library built into
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NuttX is sufficient and that can be included with CONFIG_LIBM=y. If you
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prefer a more highly tuned math library then refer to the discussion of
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math.h in the the top-level nuttx/README.txt file. Also refer to the
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discussions in the NuttX Yahoo! forum; people have found many creative
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way to link with the newlib math library, for example.
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5. See errors like this?
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error: unknown type name 'wint_t'
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You can't include the NuttX wchar.h header file where this is defined, but
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you can add this to the mpconfigport.h header file (if it is not already
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there):
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typedef int wint_t;
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Is the missing wint_t definition coming from alloca.h? You can either
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(1) replace alloc(a) with the #define described above, or (2) move the
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typedef of wint_t to before the inclusion of alloca.h.
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6. Micro Python is released under the MIT license which is license-compatible
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with the NuttX 3-clause BSD license. Here is the full text of the Micro
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Python LICENSE file as of 2015-01-14:
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The MIT License (MIT)
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Copyright (c) 2013, 2014 Damien P. George
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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pcode
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-----
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At present, only the NuttX Pascal add-on is supported. This NuttX add-on
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must be downloaded separately (or is available from the Nuttx Pascal GIT
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repository).
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This Pascal add-on must be installed into the NuttX apps/ directory. After
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unpacking the Pascal add-on package, an installation script and README.txt
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instructions can be found at pascal/nuttx.
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INSTALL.sh -- The script that performs the operation. Usage:
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./INSTALL.sh [-16|-32] <install-dir>
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If you are using this standard NuttX apps/ package, the correct
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location for the <install-dir> is apps/interpreters. That is
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where the examples and build logic will expect to find the pcode
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sub-directory.
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Example:
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./INSTALL.sh -16 $PWD/../../../apps/interpreters
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After installation, the NuttX apps/interpresters directory will contain
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the following files
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pcode
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|-- Makefile
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|-- include
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| `-- Common header files
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|-- libboff
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| `-- Pascal object format (POFF) library
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`--insn
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|-- include
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| `-- model-specific header files
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`-- prun
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`-- model-specific source files
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pashello
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There is a simple Pascal example at apps/examples/pashello. This is the
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standard "Hello, World!" example written in Pascal and interpreted from
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Pascal P-Code at runtime. To use this example, place the following in
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your defonfig file:
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CONFIG_EXAMPLES_PASHELLO=y
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CONFIG_INTERPRETERS_PCODE=y
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prun
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This directory holds some simple, convenience functions to simplify and
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standardize the interaction with the P-Code library.
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