add JavaScript Interpreter

components/external/espruino/CONTRIBUTING.md

+Contributing
+===========
+
+Thanks for thinking about contributing to Espruino! Anything you can add is hugely appreciated, but please can you follow a few simple rules:
+
+* Keep the same coding style (See **Coding Style** below)
+* Ensure that you are not contributing someone else's code, and that you are willing to add your code under Espruino's MPL Licence
+* Make sure that what you do doesn't break the Espruino board or the other boards we build for. We can't check all the boards for every commit, so if you break something you'll annoy a whole bunch of people.
+* Be aware that Espruino is designed for Microcontrollers - with very low amounts of flash and memory. Both are at a premium so don't statically allocate variables or do other stuff that will use up memory.
+* Avoid randomly adding newlines, spaces, refactoring everything or renaming things to your own personal style (some things really could do with renaming, but please check first or we may reject your pull request)
+* Don't add a whole bunch of indirection/abstraction for the sake of it - it'll probably just use of more of our precious memory.
+* If you add a new API, try and make it familiar to Arduino/JavaScript users.
+
+Target Areas
+-----------
+
+We'll keep the outstanding issues in GitHub's issue list, but general stuff that would really help us is:
+
+* Tests. If something doesn't work, please make a test for it. Even if you don't fix it it'll help others greatly. Bonus points if it's in a pull request :)
+* Documentation. Improving the documentation (either the EspruinoDocs project, or the auto-generated reference) would be fantastic.
+* Duplication. If the same code is used for multiple platforms, try and make sure it's shared, not duplicated.
+* Remove hard-coded stuff. Various things like the SPI filesystem are still hard-coded with ifdefs for each board - we want all that stuff to be generated from build_platform_info.py
+* Speed. There are a few areas this could be improved - but please benchmark what you're doing both before and afterwards on the Espruino board to check that what you've done helps
+* Memory Usage. Both RAM and Flash are at a premium. Ways of reducing this (including stack usage) and making usage more efficient are really appreciated.
+* JavaScript compliance (without affecting speed or memory usage too much).
+
+Contributing
+-----------
+
+* Please RUN THE TESTS to check that there are no regressions
+* Issue us a pull request to [www.github.com/espruino] via GitHub
+* Please keep each request small (just include one fix per request)
+
+Coding Style
+-----------
+
+The rough coding style is as follows, but you should get a good idea from the code. If we've missed anything obvious please let us know!
+
+* 2 Spaces for indents
+* Open curly braces on the same line
+* No Tabs used
+* Use bool for booleans - not int
+* ```//``` comments for single lines, ```/* ... */``` for multiple lines
+* Half-hearted Doxygen compatibility: use ```///<``` for function declaration documentation (if on same line), and ```/** ... */``` if doing it right before a function
+* Use new lines sparingly (only where it really makes sense)
+

components/external/espruino/LICENSE

+All files in this package are Copyright 2013 Gordon Williams, Pur3 Ltd unless
+otherwise noted.
+
+-------------------------------------------------------------------------------
+
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in 
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.

components/external/espruino/README.md

+Espruino JavaScript for Microcontrollers
+========================================
+<pre>
+ _____                 _
+|   __|___ ___ ___ _ _|_|___ ___
+|   __|_ -| . |  _| | | |   | . |
+|_____|___|  _|_| |___|_|_|_|___|
+          |_|      
+</pre>
+http://www.espruino.com
+
+**NOTE:** This software is beta and is provided as-is, and won't be considered even remotely final until we've released the Espruino Board. As such, don't expect support, and do expect it to change rapidly and without warning. Build your own documentation (see **Building**), as the API may be different from the one described on the Espruino website.
+
+The KickStarter campaign said the Espruino Board will have some things which this repository does not yet have (like working CC3000 support). These are works in progress and should be done by the time you get your board (or will be available as a software update).
+
+
+About
+-----
+
+It'd probably help to read the [FAQ](http://www.espruino.com/FAQ), and specifically the page about [Performance](http://www.espruino.com/Performance) as it contains information about how Espruino itself works.
+
+There's also the auto-generated [Reference](http://www.espruino.com/Reference) for JavaScript commands as well as the [Tutorials](http://www.espruino.com/Tutorials) on the website. However please note that this repository is under heavy development, and the documentation on the Espruino website will match the version [available for download](http://www.espruino.com/Download) but **not** the latest version from Git.
+
+
+License
+-------
+
+Please see the [LICENSE](LICENSE) file
+
+
+Found a Bug?
+------------
+
+Please check that:
+* It hasn't [already been found](https://github.com/espruino/Espruino/issues) or [been covered on our forum](www.espruino.com/Forum)
+* You're not just looking at outdated documentation (See the [Building](#Building) section to see how to build documentation)
+
+Please [submit bugs](https://github.com/espruino/Espruino/issues) with clear steps to reproduce them (and ideally a test case for the ```tests``` directory), and if at all possible try and include a patch to fix them. Please be aware that we have a whole bunch of outstanding issues (some quite large), so if you report something (especially if it doesn't contain a test or a pull request) it may not be fixed for quite some time.
+
+
+Contributing
+------------
+
+Please see [CONTRIBUTING.md](CONTRIBUTING.md)
+
+Current State
+-------------
+
+You can download binaries from http://www.espruino.com/Download (these aren't the latest, but are more likely to work with your board)
+
+Please note that this is BETA. We've been working hard on the Espruino Board support but we haven't had time to check the other boards properly.
+
+* Espruino Board - working
+* Linux - working
+* STM32VLDISCOVERY - WORKING
+* STM32F3DISCOVERY - WORKING
+* STM32F4DISCOVERY - WORKING
+* STM32F429IDISCOVERY - not working, currently no LCD support
+* HY STM32 2.4" - NOT WORKING - appears to crash after startup
+* HY STM32 2.8" - WORKING, but screen is not black at startup
+* HY STM32 3.2" - WORKING
+* Olimexino - WORKING
+* Carambola - ?
+* Raspberry Pi - WORKING
+* Sony SmartWatch - USB VCP support still needed
+* MBed platforms - have not worked for a while - hardware wrapper still needed
+* Arduino - has never worked. Compiles but doesn't even get past init
+* LC-TECH STM32F103RBT6 - WORKING, but with some issues (LED inverted logic, BTN needs pullup to work)
+
+Using
+-----
+
+If you're using Espruino for your own personal projects - go ahead, we hope you have fun - and please let us know what you do with it on http://www.espruino.com/Forum!
+
+However if you're planning on selling the Espruino software on your own board, please talk to us:
+
+* Read the terms of the MPLv2 Licence that Espruino is distributed under, and make sure you comply with it
+* You won't be able to call your board 'Espruino' but you must explain clearly that it uses 'Espruino' internally (we own the trademark)
+* If you're profiting from Espruino without contributing anything back, we won't support you (or your users)
+
+
+Building
+--------
+  
+Espruino is easy to build under Linux, and it is possible to build under MacOS. We'd strongly suggest that you DO NOT TRY AND BUILD UNDER WINDOWS, and instead use a Virtual Machine. There's a good post on this here: http://forum.espruino.com/conversations/151
+  
+We suggest that you use the CodeSourcery GCC compiler, but paths in Makefile may need changing...
+
+```  BOARDNAME=1 RELEASE=1 make```
+
+* See the top of Makefile for board names
+* Without `RELEASE=1`, assertions are kept in the code (which is good for debugging, bad for performance + code size)
+* `BOARDNAME=1 RELEASE=1 make serialflash` will flash to /dev/ttyUSB0 using the STM32 serial bootloader (what's needed for Espruino + HY boards)
+* `BOARDNAME=1 RELEASE=1 make flash` will flash using st-flash if discovery, or maple bootloader if using that board
+
+You can build documentation by running:
+
+```  python scripts/build_docs.py ```
+
+This will create a file called ```functions.html```
+
+Directories and Files
+---------------------
+
+* `ChangeLog`:          What's new
+* `TODO`:               List of things to do
+* `boards/`:            Information on boards, used to auto-generate a lot of the code
+* `code/`:              Example JavaScript code
+* `gen/`:               Auto-Generated Source Files
+* `libs/`:              Optional libraries to include in Espruino (Math, Filesystem, Graphics, etc)
+* `linker/`:            Linker files for various processors
+* `misc/`:              random other stuff
+* `scripts/`:           Scripts for generating files in gen, and for analysing code/compilation/etc
+* `src/`:               Main source code
+* `targetlibs/`:        Libraries for targeted architectures
+* `targets/`:           Specific code for targeted architectures
+* `tests/`:             JavaScript Testcases
+* `benchmark/`:         JavaScript Benchmarks
+* `dist_*`:             files to be copied into distribution zip file
+
+Adding more devices
+-------------------
+
+Currently there are a bunch of different files to modify. Eventually the plan is to fit everything into boards/BOARDNAME.py and to auto-generate the rest of the config files.
+
+* Most build options handled in `Makefile`
+* Extra libraries like USB/LCD/filesystem in `Makefile`
+* Linker Scripts are in `linker/`
+* `boards/*.py` files handle loading the list of available pins so the relevant headers + docs can be created
+* Processor-specific code in `targets/stm32`, `targets/linux`, etc.
+* Processor-specific libs in `targetlibs/foo` 
+* `src/jshardware.h` is effectively a simple abstraction layer for SPI/I2C/etc
+* `targets/stm32/jshardware.c` also has flash-size-specific defines
+* `libs/fat_sd` and `libs/lcd` still have some device-specific defines in too
+
+Adding libraries
+-------------------
+
+* Create `jswrap_mylib.c/h` in `libs/`
+* Create library functions (see examples in other jswrap files, also the comments in `scripts/common.py`)
+
+
+Arduino Compile (beta)
+----------------------
+* Ensure that `targets/arduino/utility` is symlinked to `src`
+* Symlink `...arduino_workspace/libraries/Espruino` to `targets/arduino`
+
+Cross Compile for Raspberry Pi
+------------------------------
+```
+cd targetlibs
+mkdir raspberrypi
+cd raspberrypi
+git clone git://github.com/raspberrypi/tools.git
+sudo apt-get install ia32-libs
+```
+
+Cross Compile for Carambola (OpenWRT)
+-------------------------------------
+* Follow instructions at <https://github.com/8devices/carambola> to set toolchain up in ```~/workspace/carambola```
+* Run ```CARAMBOLA=1 make```

components/external/espruino/README_cn.md

+这是从Espruino移植过来的javascript解释器。
+这个组件依赖newlib。需要在rtconfig.h中开启RT_USING_JS宏来开启此组件。
\ No newline at end of file

components/external/espruino/SConscript

+import rtconfig
+Import('RTT_ROOT')
 from building import *
-import os
-
-cwd = GetCurrentDir()
-# source files 
-src = Split('''
-''')
-
-ESPRUINO_SRC_PATH = cwd + '/src'
-if GetDepend('RT_USING_JS') and not os.path.exists(ESPRUINO_SRC_PATH):
-    print '================ERROR============================'
-    print 'Please get espruino source files and put them under espruino folder'
-    print '================================================='
-    exit(0)
-
-CPPPATH = [cwd + '/src', cwd + '/gen', cwd + '/libs', cwd + '/targets/rtthread']
-group = DefineGroup('Espruino', src, depend = ['RT_USING_JS'], CPPPATH = CPPPATH)
+
+path = [RTT_ROOT + r'/components/external/Espruino']
+path = path + [RTT_ROOT + r'/components/external/Espruino/src/']
+path = path + [RTT_ROOT + r'/components/external/Espruino/gen/']
+path = path + [RTT_ROOT + r'/components/external/Espruino/libs/']
+path = path + [RTT_ROOT + r'/components/external/Espruino/targets/rtthread/']
+
+src	= Split("""
+src/jsdevices.c
+src/jslex.c
+src/jswrap_array.c
+src/jswrap_json.c
+src/jswrap_process.c
+src/jsutils.c
+src/jswrap_interactive.c
+src/jswrap_onewire.c
+src/jswrap_string.c
+src/jsparse.c
+src/jswrap_arraybuffer.c
+src/jswrap_modules.c
+src/jswrap_serial.c
+src/jsinteractive.c
+src/jsvar.c
+src/jswrap_io.c
+src/jswrap_pin.c
+src/jspin.c
+src/jswrap_functions.c
+src/jswrap_object.c
+src/jswrap_spi_i2c.c
+"""
+)
+
+gen = Split("""
+gen/jspininfo.c
+gen/jswrapper.c
+"""
+)
+
+target = Split("""
+targets/rtthread/espruino.c  
+targets/rtthread/jshardware.c
+"""
+)
+
+libs = Split(
+"""
+libs/jswrap_math.c
+"""
+)
+
+src	+= gen + target + libs
+
+group = DefineGroup('Espruino', src, depend = ['RT_USING_JS', 'RT_USING_NEWLIB'], CPPPATH = path)
 
 Return('group')

components/external/espruino/dist_licences.txt

+Espruino uses a few libraries of code that have been generously given away for
+free. Their licences are included below.
+
+-------------------------------------------------------------------------
+ FATFS
+-------------------------------------------------------------------------
+
+/*---------------------------------------------------------------------------/
+/  FatFs - FAT file system module include file  R0.07c       (C)ChaN, 2009
+/----------------------------------------------------------------------------/
+/ FatFs module is an open source software to implement FAT file system to
+/ small embedded systems. This is a free software and is opened for education,
+/ research and commercial developments under license policy of following terms.
+/
+/  Copyright (C) 2009, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is NO WARRANTY.
+/ * No restriction on use. You can use, modify and redistribute it for
+/   personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.*/
+
+
+-------------------------------------------------------------------------
+ FATFS to SPI bridge
+-------------------------------------------------------------------------
+
+/* Copyright (c) 2009, Martin Thomas, ChaN
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are met:
+
+   * Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+   * Neither the name of the copyright holders nor the names of
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+  POSSIBILITY OF SUCH DAMAGE. */
+  
+-------------------------------------------------------------------------
+ FATFS to SDIO bridge
+-------------------------------------------------------------------------
+
+/* author: ickle */ -  No details given with source code. If you have 
+anything you'd like to include, pleas e-mail us and let us know. 
+
+-------------------------------------------------------------------------
+ 8x8 LCD Font
+-------------------------------------------------------------------------
+
+/*
+http://forum.osdev.org/viewtopic.php?f=2&t=22033
+
+Created Sunday, May 23, 2010 by Quinn Evans
+Renamed and updated Monday 24, 2010
+
+This font (Vincent) is released by me into the public domain. I claim no
+copyright, and hereby make this software available to the public for any use,
+at any time, free of restrictions, legal or otherwise.
+*/
+
+-------------------------------------------------------------------------
+ CC3000 Host Driver Implementation.
+-------------------------------------------------------------------------
+
+ Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+   Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the   
+   distribution.
+
+   Neither the name of Texas Instruments Incorporated nor the names of
+   its contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file

components/external/espruino/dist_readme.txt

+ _____                 _                                                        
+|   __|___ ___ ___ _ _|_|___ ___                                                
+|   __|_ -| . |  _| | | |   | . |                                               
+|_____|___|  _|_| |___|_|_|_|___|                                               
+          |_|                                                               
+   Copyright 2013 Gordon Williams
+                                               
+http://www.espruino.com
+
+--------------------------------------------------------------
+
+There are a few different binaries in this ZIP file, for different
+types of Microcontroller:
+
+espruino_#v##_hystm32_24_ve.bin 
+   - 'HY'STM32F103VET6 ARM with 2.4" LCD display
+     This is available from eBay
+
+espruino_#v##_hystm32_28_rb.bin 
+   - 'HY'STM32F103RBT6 ARM with 2.8" LCD display
+     This is available from eBay
+
+espruino_#v##_hystm32_32_vc.bin 
+   - 'HY'STM32F103VCT6 ARM with 3.2" LCD display
+     This is available from eBay
+      
+espruino_#v##_olimexino_stm32.bin
+   - You will need to overwrite the Maple bootloader to install this.
+     Espruino is now too large to fit in flash alongside it.
+   - Olimexino-STM32 Arduino form factor board
+   - Leaf Labs Maple Arduino form factor board
+
+espruino_#v##_stm32vldiscovery.bin
+   - STM32VLDISCOVERY board
+
+espruino_#v##_stm32f3discovery.bin
+   - STM32F3DISCOVERY board
+   
+espruino_#v##_stm32f4discovery.bin
+   - STM32F4DISCOVERY board
+
+espruino_#v##_raspberrypi
+   - Raspberry Pi executable (just copy it to the device and run it)
+   NOTE: There is GPIO support (which requires you to run Espruino as root)
+   however there is no Serial, SPI, OneWire or I2C support at the moment so
+   you're pretty limited!
+
+For information on devices, and on how to flash these binary files on to 
+each device, please see our website, http://www.espruino.com
+
+NOTES:
+
+* On the STM32F4DISCOVERY the default USART is USART2 (because
+USART1 shares some pins with USB). This means you must connect
+serial connections to PA2/PA3 NOT PA9/PA10 as you would for
+the STM32VLDISCOVERY.
+

components/external/espruino/gen/README

+This directory contains auto-generated files

components/external/espruino/gen/jspininfo.c

+// auto-generated pin info file
+// for board LINUX
+#include "jspininfo.h"
+
+const JshPinInfo pinInfo[JSH_PIN_COUNT] = {
+};
+

components/external/espruino/gen/jspininfo.h

+// auto-generated pin info file
+// for board LINUX
+#ifndef __JSPININFO_H_
+#define __JSPININFO_H_
+
+#include "jspin.h"
+
+#define JSH_PIN_COUNT 0
+
+#define JSH_PORTA_COUNT 0
+#define JSH_PORTB_COUNT 0
+#define JSH_PORTC_COUNT 0
+#define JSH_PORTD_COUNT 0
+#define JSH_PORTE_COUNT 0
+#define JSH_PORTF_COUNT 0
+#define JSH_PORTG_COUNT 0
+#define JSH_PORTH_COUNT 0
+#define JSH_PORTA_OFFSET -1
+#define JSH_PORTB_OFFSET -1
+#define JSH_PORTC_OFFSET -1
+#define JSH_PORTD_OFFSET -1
+#define JSH_PORTE_OFFSET -1
+#define JSH_PORTF_OFFSET -1
+#define JSH_PORTG_OFFSET -1
+#define JSH_PORTH_OFFSET -1
+
+#define JSH_PININFO_FUNCTIONS 0
+
+typedef struct JshPinInfo {
+  JsvPinInfoPort port;
+  JsvPinInfoPin pin;
+  JsvPinInfoAnalog analog; // TODO: maybe we don't need to store analogs separately
+  JshPinFunction functions[JSH_PININFO_FUNCTIONS];
+} PACKED_FLAGS JshPinInfo;
+
+extern const JshPinInfo pinInfo[JSH_PIN_COUNT];
+
+#endif
+

components/external/espruino/gen/platform_config.h

+
+// Automatically generated header file for LINUX
+// Generated by scripts/build_platform_config.py
+
+#ifndef _PLATFORM_CONFIG_H
+#define _PLATFORM_CONFIG_H
+#include <rtthread.h>
+
+#define PC_BOARD_ID "LINUX"
+#define PC_BOARD_CHIP "LINUX"
+#define PC_BOARD_CHIP_FAMILY "LINUX"
+
+
+
+// SYSTICK is the counter that counts up and that we use as the real-time clock
+// The smaller this is, the longer we spend in interrupts, but also the more we can sleep!
+#define SYSTICK_RANGE 0x1000000 // the Maximum (it is a 24 bit counter) - on Olimexino this is about 0.6 sec
+#define SYSTICKS_BEFORE_USB_DISCONNECT 2
+
+#define DEFAULT_BUSY_PIN_INDICATOR (Pin)-1 // no indicator
+#define DEFAULT_SLEEP_PIN_INDICATOR (Pin)-1 // no indicator
+
+// When to send the message that the IO buffer is getting full
+#define IOBUFFER_XOFF ((TXBUFFERMASK)*6/8)
+// When to send the message that we can start receiving again
+#define IOBUFFER_XON ((TXBUFFERMASK)*3/8)
+
+
+
+#define RAM_TOTAL (-1*1024)
+#define FLASH_TOTAL (-1*1024)
+
+#define RESIZABLE_JSVARS // Allocate variables in blocks using malloc
+
+#define USARTS                          0
+#define SPIS                            1
+#define I2CS                            0
+#define ADCS                            0
+#define DACS                            0
+
+#define DEFAULT_CONSOLE_DEVICE              EV_USBSERIAL
+
+#define IOBUFFERMASK 31 // (max 255) amount of items in event buffer - events take ~9 bytes each
+#define TXBUFFERMASK 31 // (max 255)
+
+
+// definition to avoid compilation when Pin/platform config is not defined
+#define IS_PIN_USED_INTERNALLY(PIN) ((false))
+#define IS_PIN_A_LED(PIN) ((false))
+#define IS_PIN_A_BUTTON(PIN) ((false))
+
+#endif // _PLATFORM_CONFIG_H
+

components/external/espruino/libs/jswrap_math.c

+/*
+ * This file is part of Espruino, a JavaScript interpreter for Microcontrollers
+ *
+ * Copyright (C) 2013 Gordon Williams <gw@pur3.co.uk>
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * ----------------------------------------------------------------------------
+ * This file is designed to be parsed during the build process
+ *
+ * Contains built-in functions for Maths
+ * ----------------------------------------------------------------------------
+ */
+#include "jswrap_math.h"
+
+/*JSON{ "type":"class",
+        "class" : "Math",
+        "description" : "This is a standard JavaScript class that contains useful Maths routines"
+}*/
+
+// -------------------------------------------------------------------- Integer
+/*JSON{ "type":"staticmethod",
+         "class" : "Integer", "name" : "valueOf",
+         "generate" : "jswrap_integer_valueOf",
+         "description" : "Given a string containing a single character, return the numeric value of it",
+         "params" : [ [ "character" ,"JsVar", "A string containing a single character"] ],
+         "return" : ["int", "The integer value of char"]
+}*/
+JsVarInt jswrap_integer_valueOf(JsVar *v) {
+  if (!jsvIsString(v) || jsvGetStringLength(v)!=1)
+    return 0;
+  return (int)v->varData.str[0];
+}
+/*JSON{ "type":"variable", "name" : "NaN",
+         "generate_full" : "NAN",
+         "return" : ["float", "Not a  Number"]
+}*/
+ // -------------------------------------------------------------------- Double
+/*JSON{ "type":"staticmethod",
+         "class" : "Double", "name" : "doubleToIntBits",
+         "generate_full" : "*(JsVarInt*)&x",
+         "description" : " Convert the floating point value given into an integer representing the bits contained in it",
+         "params" : [ [ "x", "float", "A floating point number"] ],
+         "return" : ["int", "The integer representation of x"]
+}*/
+// -------------------------------------------------------------------- Math
+/*JSON{ "type":"staticproperty",
+         "class" : "Math", "name" : "E",
+         "generate_full" : "2.71828182846",
+         "return" : ["float", "The value of E - 2.71828182846"]
+}*/
+/*JSON{ "type":"staticproperty",
+         "class" : "Math", "name" : "PI",
+         "generate_full" : "3.14159265359",
+         "return" : ["float", "The value of PI - 3.14159265359"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "abs",
+         "generate" : "jswrap_math_abs",
+         "params" : [ [ "x", "float", "A floating point value"] ],
+         "return" : ["float", "The absolute value of x (eg, ```Math.abs(2)==2```, but also ```Math.abs(-2)==2```)"]
+}*/
+JsVarFloat jswrap_math_abs(JsVarFloat x) {
+  return (x<0)?-x:x;
+}
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "acos",
+         "generate" : "acos",
+         "params" : [ [ "x", "float", "The value to get the arc cosine of"] ],
+         "return" : ["float", "The arc cosine of x, between 0 and PI"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "asin",
+         "generate" : "asin",
+         "params" : [ [ "x", "float", "The value to get the arc sine of"] ],
+         "return" : ["float", "The arc sine of x, between -PI/2 and PI/2"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "atan",
+         "generate" : "atan",
+         "params" : [ [ "x", "float", "The value to get the arc tangent  of"] ],
+         "return" : ["float", "The arc tangent of x, between -PI/2 and PI/2"]
+}*/
+/*JSON{ "type":"staticmethod",
+        "class" : "Math", "name" : "atan2",
+         "generate" : "atan2",
+         "params" : [ [ "y", "float", "The Y-part of the angle to get the arc tangent of"],
+                      [ "x", "float", "The X-part of the angle to get the arc tangent of"] ],
+         "return" : ["float", "The arctangent of Y/X, between -PI and PI"]
+}*/
+
+/* we use sin here, not cos, to try and save a bit of code space */
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "cos",
+         "generate_full" : "sin(jsvGetFloat(theta) + (3.14159265359/2.0))",
+         "params" : [ [ "theta", "float", "The angle to get the cosine of"] ],
+         "return" : ["float", "The cosine of theta"]
+}*/
+
+#define DBL_MAX    1.7976931348623157E+308
+
+double fs_fmod(double x, double y)
+{
+  double a, b;
+  const double c = x;
+
+  if (0 > c) {
+    x = -x;
+  }
+  if (0 > y) {
+    y = -y;
+  }
+  if (y != 0 && DBL_MAX >= y && DBL_MAX >= x) {
+    while (x >= y) {
+      a = x / 2;
+      b = y;
+      while (a >= b) {
+        b *= 2;
+      }
+      x -= b;
+    }
+  } else {
+    x = 0;
+  }
+  return 0 > c ? -x : x;
+}
+
+double jswrap_math_pow(double x, double y)
+{
+  double p;
+  if (0 > x && fs_fmod(y, 1) == 0) {
+    if (fs_fmod(y, 2) == 0) {
+      p = exp(log(-x) * y);
+    } else {
+      p = -exp(log(-x) * y);
+    }
+  } else {
+    if (x != 0 || 0 >= y) {
+      p = exp(log( x) * y);
+    } else {
+      p = 0;
+    }
+  }
+  return p;
+}
+
+
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "pow",
+         "generate" : "jswrap_math_pow",
+         "params" : [ [ "x", "float", "The value to raise to the power"],
+                      [ "y", "float", "The power x should be raised to"] ],
+         "return" : ["float", "x raised to the power y (x^y)"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "random",
+         "generate_full" : "(JsVarFloat)rand() / (JsVarFloat)RAND_MAX",
+         "return" : ["float", "A random number between 0 and 1"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "round",
+         "generate" : "(JsVarInt)round",
+         "params" : [ [ "x", "float", "The value to round"] ],
+         "return" : ["int", "x, rounded to the nearest integer"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "sin",
+         "generate" : "sin",
+         "params" : [ [ "theta", "float", "The angle to get the sine of"] ],
+         "return" : ["float", "The sine of theta"]
+}*/
+
+/* we could use the real sqrt - but re-use pow to save on code space */
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "sqrt",
+         "generate_full" : "jswrap_math_pow(jsvGetFloat(x),0.5)",
+         "params" : [ [ "x", "float", "The value to take the square root of"] ],
+         "return" : ["float", "The square root of x"]
+}*/
+
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "ceil",
+         "generate" : "ceil",
+         "params" : [ [ "x", "float", "The value to round up"] ],
+         "return" : ["float", "x, rounded upwards to the nearest integer"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "floor",
+         "generate" : "floor",
+         "params" : [ [ "x", "float", "The value to round down"] ],
+         "return" : ["float", "x, rounded downwards to the nearest integer"]
+}*/
+
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "exp",
+         "generate" : "exp",
+         "params" : [ [ "x", "float", "The value raise E to the power of"] ],
+         "return" : ["float", "E^x"]
+}*/
+/*JSON{ "type":"staticmethod",
+         "class" : "Math", "name" : "log",
+         "generate" : "log",
+         "params" : [ [ "x", "float", "The value to take the logarithm (base E) root of"] ],
+         "return" : ["float", "The log (base E) of x"]
+}*/
+
+/*JSON{ "type":"staticmethod", "ifndef" : "SAVE_ON_FLASH",
+         "class" : "Math", "name" : "clip",
+         "generate" : "jswrap_math_clip",
+         "description" : "Clip a number to be between min and max (inclusive)",
+         "params" : [ [ "x", "float", "A floating point value to clip"],
+                      [ "min", "float", "The smallest the value should be"],
+                      [ "max", "float", "The largest the value should be"] ],
+         "return" : ["float", "The value of x, clipped so as not to be below min or above max."]
+}*/
+JsVarFloat jswrap_math_clip(JsVarFloat x, JsVarFloat min, JsVarFloat max) {
+  if (x<min) x=min;
+  if (x>max) x=max;
+  return x;
+}
+
+/*JSON{ "type":"staticmethod", "ifndef" : "SAVE_ON_FLASH",
+         "class" : "Math", "name" : "wrap",
+         "generate" : "wrapAround",
+         "description" : "Wrap a number around if it is less than 0 or greater than or equal to max. For instance you might do: ```Math.wrap(angleInDegrees, 360)```",
+         "params" : [ [ "x", "float", "A floating point value to wrap"],
+                      [ "max", "float", "The largest the value should be"] ],
+         "return" : ["float", "The value of x, wrapped so as not to be below min or above max."]
+}*/
+
+

components/external/espruino/libs/jswrap_math.h

+/*
+ * This file is part of Espruino, a JavaScript interpreter for Microcontrollers
+ *
+ * Copyright (C) 2013 Gordon Williams <gw@pur3.co.uk>
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * ----------------------------------------------------------------------------
+ * Contains built-in functions for Maths
+ * ----------------------------------------------------------------------------
+ */
+#include "jsutils.h"
+#include "jsvar.h"
+
+#ifdef ARM
+#include "mconf.h"
+#include "protos.h"
+#else
+#include <math.h>
+#endif
+
+
+JsVarInt jswrap_integer_valueOf(JsVar *v);
+JsVarFloat jswrap_math_abs(JsVarFloat x);
+double jswrap_math_pow(double x, double y);
+JsVarFloat jswrap_math_clip(JsVarFloat x, JsVarFloat min, JsVarFloat max);

components/external/espruino/libs/math/README

+
+This suite of C language elementary functions offers support for
+not-a-number (NaN) and infinity rules, subnormal numbers, and minus
+zero as described by IEEE standard 754 and the Numerical C Extensions
+Group (NCEG).  For a variety of reasons, many computers cannot take
+advantage of these features.  You can disable any or all of them by
+removing the corresponding preprocessor macros.  Check the files
+mconf.h and const.c carefully to be sure they are appropriate for your
+system.
+
+
+
+------------------------------------------
+
+http://www.netlib.org/cephes/readme
+
+   Some software in this archive may be from the book _Methods and
+Programs for Mathematical Functions_ (Prentice-Hall or Simon & Schuster
+International, 1989) or from the Cephes Mathematical Library, a
+commercial product. In either event, it is copyrighted by the author.
+What you see here may be used freely but it comes with no support or
+guarantee.
+
+   The two known misprints in the book are repaired here in the
+source listings for the gamma function and the incomplete beta
+integral.
+
+
+   Stephen L. Moshier
+   moshier@na-net.ornl.gov
+
+

components/external/espruino/libs/math/acosh.c

+/*							acosh.c
+ *
+ *	Inverse hyperbolic cosine
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * double x, y, acosh();
+ *
+ * y = acosh( x );
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * Returns inverse hyperbolic cosine of argument.
+ *
+ * If 1 <= x < 1.5, a rational approximation
+ *
+ *	sqrt(z) * P(z)/Q(z)
+ *
+ * where z = x-1, is used.  Otherwise,
+ *
+ * acosh(x)  =  log( x + sqrt( (x-1)(x+1) ).
+ *
+ *
+ *
+ * ACCURACY:
+ *
+ *                      Relative error:
+ * arithmetic   domain     # trials      peak         rms
+ *    DEC       1,3         30000       4.2e-17     1.1e-17
+ *    IEEE      1,3         30000       4.6e-16     8.7e-17
+ *
+ *
+ * ERROR MESSAGES:
+ *
+ *   message         condition      value returned
+ * acosh domain       |x| < 1            NAN
+ *
+ */
+
+/*							acosh.c	*/
+
+/*
+Cephes Math Library Release 2.8:  June, 2000
+Copyright 1984, 1995, 2000 by Stephen L. Moshier
+*/
+
+
+/* acosh(z) = sqrt(x) * R(x), z = x + 1, interval 0 < x < 0.5 */
+
+#include "mconf.h"
+
+#ifdef UNK
+const static double P[] = {
+ 1.18801130533544501356E2,
+ 3.94726656571334401102E3,
+ 3.43989375926195455866E4,
+ 1.08102874834699867335E5,
+ 1.10855947270161294369E5
+};
+const static double Q[] = {
+/* 1.00000000000000000000E0,*/
+ 1.86145380837903397292E2,
+ 4.15352677227719831579E3,
+ 2.97683430363289370382E4,
+ 8.29725251988426222434E4,
+ 7.83869920495893927727E4
+};
+#endif
+
+#ifdef DEC
+static unsigned short P[] = {
+0041755,0115055,0144002,0146444,
+0043166,0132103,0155150,0150302,
+0044006,0057360,0003021,0162753,
+0044323,0021557,0175225,0056253,
+0044330,0101771,0040046,0006636
+};
+static unsigned short Q[] = {
+/*0040200,0000000,0000000,0000000,*/
+0042072,0022467,0126670,0041232,
+0043201,0146066,0152142,0034015,
+0043750,0110257,0121165,0026100,
+0044242,0007103,0034667,0033173,
+0044231,0014576,0175573,0017472
+};
+#endif
+
+#ifdef IBMPC
+static unsigned short P[] = {
+0x59a4,0xb900,0xb345,0x405d,
+0x1a18,0x7b4d,0xd688,0x40ae,
+0x3cbd,0x00c2,0xcbde,0x40e0,
+0xab95,0xff52,0x646d,0x40fa,
+0xc1b4,0x2804,0x107f,0x40fb
+};
+static unsigned short Q[] = {
+/*0x0000,0x0000,0x0000,0x3ff0,*/
+0x0853,0xf5b7,0x44a6,0x4067,
+0x4702,0xda8c,0x3986,0x40b0,
+0xa588,0xf44e,0x1215,0x40dd,
+0xe6cf,0x6736,0x41c8,0x40f4,
+0x63e7,0xdf6f,0x232f,0x40f3
+};
+#endif
+
+#ifdef MIEEE
+static unsigned short P[] = {
+0x405d,0xb345,0xb900,0x59a4,
+0x40ae,0xd688,0x7b4d,0x1a18,
+0x40e0,0xcbde,0x00c2,0x3cbd,
+0x40fa,0x646d,0xff52,0xab95,
+0x40fb,0x107f,0x2804,0xc1b4
+};
+static unsigned short Q[] = {
+0x4067,0x44a6,0xf5b7,0x0853,
+0x40b0,0x3986,0xda8c,0x4702,
+0x40dd,0x1215,0xf44e,0xa588,
+0x40f4,0x41c8,0x6736,0xe6cf,
+0x40f3,0x232f,0xdf6f,0x63e7,
+};
+#endif
+
+#ifdef ANSIPROT
+extern double polevl ( double, void *, int );
+extern double p1evl ( double, void *, int );
+extern double log ( double );
+extern double sqrt ( double );
+#else
+double log(), sqrt(), polevl(), p1evl();
+#endif
+extern double LOGE2, INFINITY, NAN;
+
+double acosh(x)
+double x;
+{
+double a, z;
+
+if( x < 1.0 )
+	{
+	mtherr( "acosh", DOMAIN );
+	return(NAN);
+	}
+
+if( x > 1.0e8 )
+	{
+#ifdef INFINITIES
+	if( x == INFINITY )
+		return( INFINITY );
+#endif
+	return( log(x) + LOGE2 );
+	}
+
+z = x - 1.0;
+
+if( z < 0.5 )
+	{
+	a = sqrt(z) * (polevl(z, P, 4) / p1evl(z, Q, 5) );
+	return( a );
+	}
+
+a = sqrt( z*(x+1.0) );
+return( log(x + a) );
+}

components/external/espruino/libs/math/asin.c

+/*							asin.c
+ *
+ *	Inverse circular sine
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * double x, y, asin();
+ *
+ * y = asin( x );
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * Returns radian angle between -pi/2 and +pi/2 whose sine is x.
+ *
+ * A rational function of the form x + x**3 P(x**2)/Q(x**2)
+ * is used for |x| in the interval [0, 0.5].  If |x| > 0.5 it is
+ * transformed by the identity
+ *
+ *    asin(x) = pi/2 - 2 asin( sqrt( (1-x)/2 ) ).
+ *
+ *
+ * ACCURACY:
+ *
+ *                      Relative error:
+ * arithmetic   domain     # trials      peak         rms
+ *    DEC      -1, 1        40000       2.6e-17     7.1e-18
+ *    IEEE     -1, 1        10^6        1.9e-16     5.4e-17
+ *
+ *
+ * ERROR MESSAGES:
+ *
+ *   message         condition      value returned
+ * asin domain        |x| > 1           NAN
+ *
+ */
+/*							acos()
+ *
+ *	Inverse circular cosine
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * double x, y, acos();
+ *
+ * y = acos( x );
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * Returns radian angle between 0 and pi whose cosine
+ * is x.
+ *
+ * Analytically, acos(x) = pi/2 - asin(x).  However if |x| is
+ * near 1, there is cancellation error in subtracting asin(x)
+ * from pi/2.  Hence if x < -0.5,
+ *
+ *    acos(x) =	 pi - 2.0 * asin( sqrt((1+x)/2) );
+ *
+ * or if x > +0.5,
+ *
+ *    acos(x) =	 2.0 * asin(  sqrt((1-x)/2) ).
+ *
+ *
+ * ACCURACY:
+ *
+ *                      Relative error:
+ * arithmetic   domain     # trials      peak         rms
+ *    DEC       -1, 1       50000       3.3e-17     8.2e-18
+ *    IEEE      -1, 1       10^6        2.2e-16     6.5e-17
+ *
+ *
+ * ERROR MESSAGES:
+ *
+ *   message         condition      value returned
+ * asin domain        |x| > 1           NAN
+ */
+
+/*							asin.c	*/
+
+/*
+Cephes Math Library Release 2.8:  June, 2000
+Copyright 1984, 1995, 2000 by Stephen L. Moshier
+*/
+
+#include "mconf.h"
+
+/* arcsin(x)  =  x + x^3 P(x^2)/Q(x^2)
+   0 <= x <= 0.625
+   Peak relative error = 1.2e-18  */
+#if UNK
+const static double P[6] = {
+ 4.253011369004428248960E-3,
+-6.019598008014123785661E-1,
+ 5.444622390564711410273E0,
+-1.626247967210700244449E1,
+ 1.956261983317594739197E1,
+-8.198089802484824371615E0,
+};
+const static double Q[5] = {
+/* 1.000000000000000000000E0, */
+-1.474091372988853791896E1,
+ 7.049610280856842141659E1,
+-1.471791292232726029859E2,
+ 1.395105614657485689735E2,
+-4.918853881490881290097E1,
+};
+#endif
+#if DEC
+static short P[24] = {
+0036213,0056330,0057244,0053234,
+0140032,0015011,0114762,0160255,
+0040656,0035130,0136121,0067313,
+0141202,0014616,0170474,0101731,
+0041234,0100076,0151674,0111310,
+0141003,0025540,0033165,0077246,
+};
+static short Q[20] = {
+/* 0040200,0000000,0000000,0000000, */
+0141153,0155310,0055360,0072530,
+0041614,0177001,0027764,0101237,
+0142023,0026733,0064653,0133266,
+0042013,0101264,0023775,0176351,
+0141504,0140420,0050660,0036543,
+};
+#endif
+#if IBMPC
+static short P[24] = {
+0x8ad3,0x0bd4,0x6b9b,0x3f71,
+0x5c16,0x333e,0x4341,0xbfe3,
+0x2dd9,0x178a,0xc74b,0x4015,
+0x907b,0xde27,0x4331,0xc030,
+0x9259,0xda77,0x9007,0x4033,
+0xafd5,0x06ce,0x656c,0xc020,
+};
+static short Q[20] = {
+/* 0x0000,0x0000,0x0000,0x3ff0, */
+0x0eab,0x0b5e,0x7b59,0xc02d,
+0x9054,0x25fe,0x9fc0,0x4051,
+0x76d7,0x6d35,0x65bb,0xc062,
+0xbf9d,0x84ff,0x7056,0x4061,
+0x07ac,0x0a36,0x9822,0xc048,
+};
+#endif
+#if MIEEE
+static short P[24] = {
+0x3f71,0x6b9b,0x0bd4,0x8ad3,
+0xbfe3,0x4341,0x333e,0x5c16,
+0x4015,0xc74b,0x178a,0x2dd9,
+0xc030,0x4331,0xde27,0x907b,
+0x4033,0x9007,0xda77,0x9259,
+0xc020,0x656c,0x06ce,0xafd5,
+};
+static short Q[20] = {
+/* 0x3ff0,0x0000,0x0000,0x0000, */
+0xc02d,0x7b59,0x0b5e,0x0eab,
+0x4051,0x9fc0,0x25fe,0x9054,
+0xc062,0x65bb,0x6d35,0x76d7,
+0x4061,0x7056,0x84ff,0xbf9d,
+0xc048,0x9822,0x0a36,0x07ac,
+};
+#endif
+
+/* arcsin(1-x) = pi/2 - sqrt(2x)(1+R(x))
+   0 <= x <= 0.5
+   Peak relative error = 4.2e-18  */
+#if UNK
+const static double R[5] = {
+ 2.967721961301243206100E-3,
+-5.634242780008963776856E-1,
+ 6.968710824104713396794E0,
+-2.556901049652824852289E1,
+ 2.853665548261061424989E1,
+};
+const static double S[4] = {
+/* 1.000000000000000000000E0, */
+-2.194779531642920639778E1,
+ 1.470656354026814941758E2,
+-3.838770957603691357202E2,
+ 3.424398657913078477438E2,
+};
+#endif
+#if DEC
+static short R[20] = {
+0036102,0077034,0142164,0174103,
+0140020,0036222,0147711,0044173,
+0040736,0177655,0153631,0171523,
+0141314,0106525,0060015,0055474,
+0041344,0045422,0003630,0040344,
+};
+static short S[16] = {
+/* 0040200,0000000,0000000,0000000, */
+0141257,0112425,0132772,0166136,
+0042023,0010315,0075523,0175020,
+0142277,0170104,0126203,0017563,
+0042253,0034115,0102662,0022757,
+};
+#endif
+#if IBMPC
+static short R[20] = {
+0x9f08,0x988e,0x4fc3,0x3f68,
+0x290f,0x59f9,0x0792,0xbfe2,
+0x3e6a,0xbaf3,0xdff5,0x401b,
+0xab68,0xac01,0x91aa,0xc039,
+0x081d,0x40f3,0x8962,0x403c,
+};
+static short S[16] = {
+/* 0x0000,0x0000,0x0000,0x3ff0, */
+0x5d8c,0xb6bf,0xf2a2,0xc035,
+0x7f42,0xaf6a,0x6219,0x4062,
+0x63ee,0x9590,0xfe08,0xc077,
+0x44be,0xb0b6,0x6709,0x4075,
+};
+#endif
+#if MIEEE
+static short R[20] = {
+0x3f68,0x4fc3,0x988e,0x9f08,
+0xbfe2,0x0792,0x59f9,0x290f,
+0x401b,0xdff5,0xbaf3,0x3e6a,
+0xc039,0x91aa,0xac01,0xab68,
+0x403c,0x8962,0x40f3,0x081d,
+};
+static short S[16] = {
+/* 0x3ff0,0x0000,0x0000,0x0000, */
+0xc035,0xf2a2,0xb6bf,0x5d8c,
+0x4062,0x6219,0xaf6a,0x7f42,
+0xc077,0xfe08,0x9590,0x63ee,
+0x4075,0x6709,0xb0b6,0x44be,
+};
+#endif
+
+/* pi/2 = PIO2 + MOREBITS.  */
+#ifdef DEC
+#define MOREBITS 5.721188726109831840122E-18
+#else
+#define MOREBITS 6.123233995736765886130E-17
+#endif
+
+#ifdef ANSIPROT
+extern double polevl ( double, void *, int );
+extern double p1evl ( double, void *, int );
+extern double sqrt ( double );
+double asin ( double );
+#else
+double sqrt(), polevl(), p1evl();
+double asin();
+#endif
+extern double PIO2, PIO4, NAN;
+
+double asin(x)
+double x;
+{
+double a, p, z, zz;
+short sign;
+
+if( x > 0 )
+	{
+	sign = 1;
+	a = x;
+	}
+else
+	{
+	sign = -1;
+	a = -x;
+	}
+
+if( a > 1.0 )
+	{
+	mtherr( "asin", DOMAIN );
+	return( NAN );
+	}
+
+if( a > 0.625 )
+	{
+	/* arcsin(1-x) = pi/2 - sqrt(2x)(1+R(x))  */
+	zz = 1.0 - a;
+	p = zz * polevl( zz, R, 4)/p1evl( zz, S, 4);
+	zz = sqrt(zz+zz);
+	z = PIO4 - zz;
+	zz = zz * p - MOREBITS;
+	z = z - zz;
+	z = z + PIO4;
+	}
+else
+	{
+	if( a < 1.0e-8 )
+		{
+		return(x);
+		}
+	zz = a * a;
+	z = zz * polevl( zz, P, 5)/p1evl( zz, Q, 5);
+	z = a * z + a;
+	}
+if( sign < 0 )
+	z = -z;
+return(z);
+}
+
+
+
+double acos(x)
+double x;
+{
+double z;
+
+if( (x < -1.0) || (x > 1.0) )
+	{
+	mtherr( "acos", DOMAIN );
+	return( NAN );
+	}
+if( x > 0.5 )
+	{
+	return( 2.0 * asin(  sqrt(0.5 - 0.5*x) ) );
+	}
+z = PIO4 - asin(x);
+z = z + MOREBITS;
+z = z + PIO4;
+return( z );
+}

components/external/espruino/libs/math/asinh.c

+/*							asinh.c
+ *
+ *	Inverse hyperbolic sine
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * double x, y, asinh();
+ *
+ * y = asinh( x );
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * Returns inverse hyperbolic sine of argument.
+ *
+ * If |x| < 0.5, the function is approximated by a rational
+ * form  x + x**3 P(x)/Q(x).  Otherwise,
+ *
+ *     asinh(x) = log( x + sqrt(1 + x*x) ).
+ *
+ *
+ *
+ * ACCURACY:
+ *
+ *                      Relative error:
+ * arithmetic   domain     # trials      peak         rms
+ *    DEC      -3,3         75000       4.6e-17     1.1e-17
+ *    IEEE     -1,1         30000       3.7e-16     7.8e-17
+ *    IEEE      1,3         30000       2.5e-16     6.7e-17
+ *
+ */
+
+/*						asinh.c	*/
+
+/*
+Cephes Math Library Release 2.8:  June, 2000
+Copyright 1984, 1995, 2000 by Stephen L. Moshier
+*/
+
+
+#include "mconf.h"
+
+#ifdef UNK
+const static double P[] = {
+-4.33231683752342103572E-3,
+-5.91750212056387121207E-1,
+-4.37390226194356683570E0,
+-9.09030533308377316566E0,
+-5.56682227230859640450E0
+};
+const static double Q[] = {
+/* 1.00000000000000000000E0,*/
+ 1.28757002067426453537E1,
+ 4.86042483805291788324E1,
+ 6.95722521337257608734E1,
+ 3.34009336338516356383E1
+};
+#endif
+
+#ifdef DEC
+static unsigned short P[] = {
+0136215,0173033,0110410,0105475,
+0140027,0076361,0020056,0164520,
+0140613,0173401,0160136,0053142,
+0141021,0070744,0000503,0176261,
+0140662,0021550,0073106,0133351
+};
+static unsigned short Q[] = {
+/* 0040200,0000000,0000000,0000000,*/
+0041116,0001336,0034120,0173054,
+0041502,0065300,0013144,0021231,
+0041613,0022376,0035516,0153063,
+0041405,0115216,0054265,0004557
+};
+#endif
+
+#ifdef IBMPC
+static unsigned short P[] = {
+0x1168,0x7221,0xbec3,0xbf71,
+0xdd2a,0x2405,0xef9e,0xbfe2,
+0xcacc,0x3c0b,0x7ee0,0xc011,
+0x7f96,0x8028,0x2e3c,0xc022,
+0xd6dd,0x0ec8,0x446d,0xc016
+};
+static unsigned short Q[] = {
+/* 0x0000,0x0000,0x0000,0x3ff0,*/
+0x1ec5,0xc70a,0xc05b,0x4029,
+0x8453,0x02cc,0x4d58,0x4048,
+0xdac6,0xc769,0x649f,0x4051,
+0xa12e,0xcb16,0xb351,0x4040
+};
+#endif
+
+#ifdef MIEEE
+static unsigned short P[] = {
+0xbf71,0xbec3,0x7221,0x1168,
+0xbfe2,0xef9e,0x2405,0xdd2a,
+0xc011,0x7ee0,0x3c0b,0xcacc,
+0xc022,0x2e3c,0x8028,0x7f96,
+0xc016,0x446d,0x0ec8,0xd6dd
+};
+static unsigned short Q[] = {
+0x4029,0xc05b,0xc70a,0x1ec5,
+0x4048,0x4d58,0x02cc,0x8453,
+0x4051,0x649f,0xc769,0xdac6,
+0x4040,0xb351,0xcb16,0xa12e
+};
+#endif
+
+#ifdef ANSIPROT
+extern double polevl ( double, void *, int );
+extern double p1evl ( double, void *, int );
+extern double sqrt ( double );
+extern double log ( double );
+#else
+double log(), sqrt(), polevl(), p1evl();
+#endif
+extern double LOGE2, INFINITY;
+
+double asinh(xx)
+double xx;
+{
+double a, z, x;
+int sign;
+
+#ifdef MINUSZERO
+if( xx == 0.0 )
+  return(xx);
+#endif
+if( xx < 0.0 )
+	{
+	sign = -1;
+	x = -xx;
+	}
+else
+	{
+	sign = 1;
+	x = xx;
+	}
+
+if( x > 1.0e8 )
+	{
+#ifdef INFINITIES
+	  if( x == INFINITY )
+	    return(xx);
+#endif
+	return( sign * (log(x) + LOGE2) );
+	}
+
+z = x * x;
+if( x < 0.5 )
+	{
+	a = ( polevl(z, P, 4)/p1evl(z, Q, 4) ) * z;
+	a = a * x  +  x;
+	if( sign < 0 )
+		a = -a;
+	return(a);
+	}	
+
+a = sqrt( z + 1.0 );
+return( sign * log(x + a) );
+}

components/external/espruino/libs/math/atan.c

+/*							atan.c
+ *
+ *	Inverse circular tangent
+ *      (arctangent)
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * double x, y, atan();
+ *
+ * y = atan( x );
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * Returns radian angle between -pi/2 and +pi/2 whose tangent
+ * is x.
+ *
+ * Range reduction is from three intervals into the interval
+ * from zero to 0.66.  The approximant uses a rational
+ * function of degree 4/5 of the form x + x**3 P(x)/Q(x).
+ *
+ *
+ *
+ * ACCURACY:
+ *
+ *                      Relative error:
+ * arithmetic   domain     # trials      peak         rms
+ *    DEC       -10, 10     50000       2.4e-17     8.3e-18
+ *    IEEE      -10, 10      10^6       1.8e-16     5.0e-17
+ *
+ */
+/*							atan2()
+ *
+ *	Quadrant correct inverse circular tangent
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * double x, y, z, atan2();
+ *
+ * z = atan2( y, x );
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * Returns radian angle whose tangent is y/x.
+ * Define compile time symbol ANSIC = 1 for ANSI standard,
+ * range -PI < z <= +PI, args (y,x); else ANSIC = 0 for range
+ * 0 to 2PI, args (x,y).
+ *
+ *
+ *
+ * ACCURACY:
+ *
+ *                      Relative error:
+ * arithmetic   domain     # trials      peak         rms
+ *    IEEE      -10, 10      10^6       2.5e-16     6.9e-17
+ * See atan.c.
+ *
+ */
+
+/*							atan.c */
+
+
+/*
+Cephes Math Library Release 2.8:  June, 2000
+Copyright 1984, 1995, 2000 by Stephen L. Moshier
+*/
+
+
+#include "mconf.h"
+
+/* arctan(x)  = x + x^3 P(x^2)/Q(x^2)
+   0 <= x <= 0.66
+   Peak relative error = 2.6e-18  */
+#ifdef UNK
+const static double P[5] = {
+-8.750608600031904122785E-1,
+-1.615753718733365076637E1,
+-7.500855792314704667340E1,
+-1.228866684490136173410E2,
+-6.485021904942025371773E1,
+};
+const static double Q[5] = {
+/* 1.000000000000000000000E0, */
+ 2.485846490142306297962E1,
+ 1.650270098316988542046E2,
+ 4.328810604912902668951E2,
+ 4.853903996359136964868E2,
+ 1.945506571482613964425E2,
+};
+
+/* tan( 3*pi/8 ) */
+const static double T3P8 = 2.41421356237309504880;
+#endif
+
+#ifdef DEC
+static short P[20] = {
+0140140,0001775,0007671,0026242,
+0141201,0041242,0155534,0001715,
+0141626,0002141,0132100,0011625,
+0141765,0142771,0064055,0150453,
+0141601,0131517,0164507,0062164,
+};
+static short Q[20] = {
+/* 0040200,0000000,0000000,0000000, */
+0041306,0157042,0154243,0000742,
+0042045,0003352,0016707,0150452,
+0042330,0070306,0113425,0170730,
+0042362,0130770,0116602,0047520,
+0042102,0106367,0156753,0013541,
+};
+
+/* tan( 3*pi/8 ) = 2.41421356237309504880 */
+static unsigned short T3P8A[] = {040432,0101171,0114774,0167462,};
+#define T3P8 *(double *)T3P8A
+#endif
+
+#ifdef IBMPC
+static short P[20] = {
+0x2594,0xa1f7,0x007f,0xbfec,
+0x807a,0x5b6b,0x2854,0xc030,
+0x0273,0x3688,0xc08c,0xc052,
+0xba25,0x2d05,0xb8bf,0xc05e,
+0xec8e,0xfd28,0x3669,0xc050,
+};
+static short Q[20] = {
+/* 0x0000,0x0000,0x0000,0x3ff0, */
+0x603c,0x5b14,0xdbc4,0x4038,
+0xfa25,0x43b8,0xa0dd,0x4064,
+0xbe3b,0xd2e2,0x0e18,0x407b,
+0x49ea,0x13b0,0x563f,0x407e,
+0x62ec,0xfbbd,0x519e,0x4068,
+};
+
+/* tan( 3*pi/8 ) = 2.41421356237309504880 */
+static unsigned short T3P8A[] = {0x9de6,0x333f,0x504f,0x4003};
+#define T3P8 *(double *)T3P8A
+#endif
+
+#ifdef MIEEE
+static short P[20] = {
+0xbfec,0x007f,0xa1f7,0x2594,
+0xc030,0x2854,0x5b6b,0x807a,
+0xc052,0xc08c,0x3688,0x0273,
+0xc05e,0xb8bf,0x2d05,0xba25,
+0xc050,0x3669,0xfd28,0xec8e,
+};
+static short Q[20] = {
+/* 0x3ff0,0x0000,0x0000,0x0000, */
+0x4038,0xdbc4,0x5b14,0x603c,
+0x4064,0xa0dd,0x43b8,0xfa25,
+0x407b,0x0e18,0xd2e2,0xbe3b,
+0x407e,0x563f,0x13b0,0x49ea,
+0x4068,0x519e,0xfbbd,0x62ec,
+};
+
+/* tan( 3*pi/8 ) = 2.41421356237309504880 */
+static unsigned short T3P8A[] = {
+0x4003,0x504f,0x333f,0x9de6
+};
+#define T3P8 *(double *)T3P8A
+#endif
+
+#ifdef ANSIPROT
+extern double polevl ( double, void *, int );
+extern double p1evl ( double, void *, int );
+extern double atan ( double );
+extern double fabs ( double );
+extern int signbit ( double );
+extern int isnan ( double );
+#else
+double polevl(), p1evl(), atan(), fabs();
+int signbit(), isnan();
+#endif
+extern double PI, PIO2, PIO4, INFINITY, NEGZERO, MAXNUM;
+
+/* pi/2 = PIO2 + MOREBITS.  */
+#ifdef DEC
+#define MOREBITS 5.721188726109831840122E-18
+#else
+#define MOREBITS 6.123233995736765886130E-17
+#endif
+
+
+double atan(x)
+double x;
+{
+double y, z;
+short sign, flag;
+
+#ifdef MINUSZERO
+if( x == 0.0 )
+	return(x);
+#endif
+#ifdef INFINITIES
+if(x == INFINITY)
+	return(PIO2);
+if(x == -INFINITY)
+	return(-PIO2);
+#endif
+/* make argument positive and save the sign */
+sign = 1;
+if( x < 0.0 )
+	{
+	sign = -1;
+	x = -x;
+	}
+/* range reduction */
+flag = 0;
+if( x > T3P8 )
+	{
+	y = PIO2;
+	flag = 1;
+	x = -( 1.0/x );
+	}
+else if( x <= 0.66 )
+	{
+	y = 0.0;
+	}
+else
+	{
+	y = PIO4;
+	flag = 2;
+	x = (x-1.0)/(x+1.0);
+	}
+z = x * x;
+z = z * polevl( z, P, 4 ) / p1evl( z, Q, 5 );
+z = x * z + x;
+if( flag == 2 )
+	z += 0.5 * MOREBITS;
+else if( flag == 1 )
+	z += MOREBITS;
+y = y + z;
+if( sign < 0 )
+	y = -y;
+return(y);
+}
+
+/*							atan2	*/
+
+#ifdef ANSIC
+double atan2( y, x )
+#else
+double atan2( x, y )
+#endif
+double x, y;
+{
+double z, w;
+short code;
+
+code = 0;
+
+#ifdef NANS
+if( isnan(x) )
+	return(x);
+if( isnan(y) )
+	return(y);
+#endif
+#ifdef MINUSZERO
+if( y == 0.0 )
+	{
+	if( signbit(y) )
+		{
+		if( x > 0.0 )
+			z = y;
+		else if( x < 0.0 )
+			z = -PI;
+		else
+			{
+			if( signbit(x) )
+				z = -PI;
+			else
+				z = y;
+			}
+		}
+	else /* y is +0 */
+		{
+		if( x == 0.0 )
+			{
+			if( signbit(x) )
+				z = PI;
+			else
+				z = 0.0;
+			}
+		else if( x > 0.0 )
+			z = 0.0;
+		else
+			z = PI;
+		}
+	return z;
+	}
+if( x == 0.0 )
+	{
+	if( y > 0.0 )
+		z = PIO2;
+	else
+		z = -PIO2;
+	return z;
+	}
+#endif /* MINUSZERO */
+#ifdef INFINITIES
+if( x == INFINITY )
+	{
+	if( y == INFINITY )
+		z = 0.25 * PI;
+	else if( y == -INFINITY )
+		z = -0.25 * PI;
+	else if( y < 0.0 )
+		z = NEGZERO;
+	else
+		z = 0.0;
+	return z;
+	}
+if( x == -INFINITY )
+	{
+	if( y == INFINITY )
+		z = 0.75 * PI;
+	else if( y <= -INFINITY )
+		z = -0.75 * PI;
+	else if( y >= 0.0 )
+		z = PI;
+	else
+		z = -PI;
+	return z;
+	}
+if( y == INFINITY )
+	return( PIO2 );
+if( y == -INFINITY )
+	return( -PIO2 );
+#endif
+
+if( x < 0.0 )
+	code = 2;
+if( y < 0.0 )
+	code |= 1;
+
+#ifdef INFINITIES
+if( x == 0.0 )
+#else
+if( fabs(x) <= (fabs(y) / MAXNUM) )
+#endif
+	{
+	if( code & 1 )
+		{
+#if ANSIC
+		return( -PIO2 );
+#else
+		return( 3.0*PIO2 );
+#endif
+		}
+	if( y == 0.0 )
+		return( 0.0 );
+	return( PIO2 );
+	}
+
+if( y == 0.0 )
+	{
+	if( code & 2 )
+		return( PI );
+	return( 0.0 );
+	}
+
+
+switch( code )
+	{
+#if ANSIC
+	default:
+	case 0:
+	case 1: w = 0.0; break;
+	case 2: w = PI; break;
+	case 3: w = -PI; break;
+#else
+	default:
+	case 0: w = 0.0; break;
+	case 1: w = 2.0 * PI; break;
+	case 2:
+	case 3: w = PI; break;
+#endif
+	}
+
+z = w + atan( y/x );
+#ifdef MINUSZERO
+if( z == 0.0 && y < 0 )
+	z = NEGZERO;
+#endif
+return( z );
+}

components/external/espruino/libs/math/ftilib.rsp

+fti
+y
+acosh airy asin asinh atan &
+atanh bdtr beta btdtr cbrt chbevl &
+chdtr clog cmplx const &
+cosh dawsn drand ellie ellik ellpe ellpk &
+ellpj exp exp2 exp10 expn fac &
+fdtr fresnl gamma gdtr &
+hyperg hyp2f1 incbet incbi igam igami isnan &
+iv i0 i1 jn jv j0 j1 k0 k1 kn log log2 log10 &
+mtherr nbdtr ndtr ndtri pdtr &
+polmisc polyn pow powi psi &
+rgamma round shichi sici sin sindg &
+sinh spence sqrt stdtr struve tan tandg &
+tanh unity yn zeta zetac floor fabs polevl
+fti.lst
+fti

components/external/espruino/libs/math/setprec.c

+/* Null stubs for coprocessor precision settings */
+
+int
+sprec() {return 0; }
+
+int
+dprec() {return 0; }
+
+int
+ldprec() {return 0; }