apps/interpreters README file
=============================
This apps/ directory is set aside to hold interpreters that may be
incorporated into NuttX.
ficl
----
This is DIY port of Ficl (the "Forth Inspired Command Language"). See
http://ficl.sourceforge.net/. It is a "DIY" port because the Ficl source
is not in that directory, only an environment and instructions that will
let you build Ficl under NuttX. The rest is up to you.
pcode
-----
At present, only the NuttX Pascal add-on is supported. This NuttX add-on
must be downloaded separately (or is available in an GIT snapshot in the
misc/pascal directory).
This Pascal add-on must be installed into the NuttX apps/ directory. After
unpacking the Pascal add-on package, an installation script and README.txt
instructions can be found at pascal/nuttx.
INSTALL.sh -- The script that performs the operation. Usage:
./INSTALL.sh [-16|-32] <install-dir>
If you are using this standard NuttX apps/ package, the correct
location for the <install-dir> is apps/interpreters. That is
where the examples and build logic will expect to find the pcode
sub-directory.
Example:
./INSTALL.sh -16 $PWD/../../../apps/interpreters
After installation, the NuttX apps/interpresters directory will contain
the following files
pcode
|-- Makefile
|-- include
| `-- Common header files
|-- libboff
| `-- Pascal object format (POFF) library
`--insn
|-- include
| `-- model-specific header files
`-- prun
`-- model-specific source files
pashello
There is a simple Pascal example at apps/examples/pashello. This is the
standard "Hello, World!" example written in Pascal and interpreted from
Pascal P-Code at runtime. To use this example, place the following in
your defonfig file:
CONFIG_EXAMPLES_PASHELLO=y
CONFIG_INTERPRETERS_PCODE=y
Old Style (deprecated). In the older configuration files, you would have
used an appconfig file containing the following definitions in order to
accomplish the same thing:
# Path to example in apps/examples containing the passhello_main entry point
CONFIGURED_APPS += examples/pashello
# Path to the Pascal p-code runtime interpreter module
CONFIGURED_APPS += interpreters/pcode
