suspect-devices/circuitpython/py/mpconfig.h, branch v1.5.1 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.5.1 2015-11-13T12:49:18+00:00 py: Add MICROPY_PERSISTENT_CODE_LOAD/SAVE to load/save bytecode. 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-11-02T21:55:42+00:00 urn:sha1:d8c834c95d506db979ec871417de90b7951edc30 MICROPY_PERSISTENT_CODE must be enabled, and then enabling MICROPY_PERSISTENT_CODE_LOAD/SAVE (either or both) will allow loading and/or saving of code (at the moment just bytecode) from/to a .mpy file. py: Add MICROPY_PERSISTENT_CODE so code can persist beyond the runtime. 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-11-02T17:27:18+00:00 urn:sha1:c8e9c0d89afa90694790fd48e1bf527487a5beb7 Main changes when MICROPY_PERSISTENT_CODE is enabled are: - qstrs are encoded as 2-byte fixed width in the bytecode - all pointers are removed from bytecode and put in const_table (this includes const objects and raw code pointers) Ultimately this option will enable persistence for not just bytecode but also native code. py: Adjust object repr C (30-bit stuffed float) to reduce code size. 2015-11-06T23:25:10+00:00 Damien George damien.p.george@gmail.com 2015-11-06T23:25:10+00:00 urn:sha1:8b8d189bc09b050f9a66048736c7e990ac8c8335 This patch adds/subtracts a constant from the 30-bit float representation so that str/qstr representations are favoured: they now have all the high bits set to zero. This makes encoding/decoding qstr strings more efficient (and they are used more often than floats, which are now slightly less efficient to encode/decode). Saves about 300 bytes of code space on Thumb 2 arch. py: Add object repr "C", where 30-bit floats are stuffed in obj word. 2015-10-20T11:38:54+00:00 Damien George damien.p.george@gmail.com 2015-10-17T22:20:57+00:00 urn:sha1:183edefddd8c08dd989fa7bec2d33d8b4130e1dc This new object representation puts floats into the object word instead of on the heap, at the expense of reducing their precision to 30 bits. It only makes sense when the word size is 32-bits. py: Add option for inline assembler to support ARMv7-M instructions. 2015-10-16T21:08:57+00:00 Damien George damien.p.george@gmail.com 2015-10-16T21:08:57+00:00 urn:sha1:e813541e3f8a65fcc6e1b666e6547bd10b3dc316 Cortex-M0, M0+ and M1 only have ARMv6-M Thumb/Thumb2 instructions. M3, M4 and M7 have a superset of these, named ARMv7-M. This patch adds a config option to enable support of the superset of instructions. py: Remove dependency on printf/fwrite in mp_plat_print. 2015-10-14T23:05:55+00:00 Damien George damien.p.george@gmail.com 2015-10-14T23:05:55+00:00 urn:sha1:4300c7dba2f500cd3b2a664c7491aa3ddb328011 See issue #1500. py: Add support to call __init__ from a builtin module on first import. 2015-10-12T12:46:01+00:00 Damien George damien.p.george@gmail.com 2015-09-15T13:56:13+00:00 urn:sha1:3c9c3687d6c1001b88ef6dde200566456a1f2641 py: Move constant folding from compiler to parser. 2015-10-12T11:58:45+00:00 Damien George damien.p.george@gmail.com 2015-10-08T13:58:15+00:00 urn:sha1:64f2b213bb5be33f06ee7ab755d9344cd7e5958c It makes much more sense to do constant folding in the parser while the parse tree is being built. This eliminates the need to create parse nodes that will just be folded away. The code is slightly simpler and a bit smaller as well. Constant folding now has a configuration option, MICROPY_COMP_CONST_FOLDING, which is enabled by default. modussl: SSL socket wrapper module based on axTLS. 2015-10-06T15:10:39+00:00 Paul Sokolovsky pfalcon@users.sourceforge.net 2015-10-06T15:10:00+00:00 urn:sha1:aaa8867d4a4a1274ea43429c00e8bdfa6b28a015 py: Allocate parse nodes in chunks to reduce fragmentation and RAM use. 2015-10-01T23:11:11+00:00 Damien George damien.p.george@gmail.com 2015-09-23T09:50:43+00:00 urn:sha1:58e0f4ac50b3dc732cbfe0d7b04bb41951ac1329 With this patch parse nodes are allocated sequentially in chunks. This reduces fragmentation of the heap and prevents waste at the end of individually allocated parse nodes. Saves roughly 20% of RAM during parse stage.