CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=5.3.x 2017-12-29T03:05:48+00:00 2017-12-29T03:05:48+00:00 Damien George damien.p.george@gmail.com 2017-12-28T03:02:36+00:00 urn:sha1:9766fddcdc29cb2b5a8657389b870703580a6e57 The motivation behind this patch is to remove unreachable code in mpn_div. This unreachable code was added some time ago in 9a21d2e070c9ee0ef2c003f3a668e635c6ae4401, when a loop in mpn_div was copied and adjusted to work when mpz_dig_t was exactly half of the size of mpz_dbl_dig_t (a common case). The loop was copied correctly but it wasn't noticed at the time that the final part of the calculation of num-quo*den could be optimised, and hence unreachable code was left for a case that never occurred. The observation for the optimisation is that the initial value of quo in mpn_div is either exact or too large (never too small), and therefore the subtraction of quo*den from num may subtract exactly enough or too much (but never too little). Using this observation the part of the algorithm that handles the borrow value can be simplified, and most importantly this eliminates the unreachable code. The new code has been tested with DIG_SIZE=3 and DIG_SIZE=4 by dividing all possible combinations of non-negative integers with between 0 and 3 (inclusive) mpz digits. 2017-07-31T08:35:40+00:00 Alexander Steffen devel.20.webmeister@spamgourmet.com 2017-06-30T07:22:17+00:00 urn:sha1:55f33240f3d7051d4213629e92437a36f1fac50e There were several different spellings of MicroPython present in comments, when there should be only one. 2017-07-25T01:49:22+00:00 Damien George damien.p.george@gmail.com 2017-07-25T01:49:22+00:00 urn:sha1:04552ff71b6c722b21597d93481f024c72457cef Before this patch raising a big-int to a negative power would just return 0. Now it returns a floating-point number with the correct value. 2017-07-25T01:32:04+00:00 Damien George damien.p.george@gmail.com 2017-07-25T01:32:04+00:00 urn:sha1:4d1fb6107fdedb0dda8dfb1491c033bf731222c6 It's more efficient as an inline function, and saves code size. 2017-07-18T01:57:39+00:00 Alexander Steffen devel.20.webmeister@spamgourmet.com 2017-06-29T21:14:58+00:00 urn:sha1:299bc625864b9e624ed599c94a5f95870516139a The code conventions suggest using header guards, but do not define how those should look like and instead point to existing files. However, not all existing files follow the same scheme, sometimes omitting header guards altogether, sometimes using non-standard names, making it easy to accidentally pick a "wrong" example. This commit ensures that all header files of the MicroPython project (that were not simply copied from somewhere else) follow the same pattern, that was already present in the majority of files, especially in the py folder. The rules are as follows. Naming convention: * start with the words MICROPY_INCLUDED * contain the full path to the file * replace special characters with _ In addition, there are no empty lines before #ifndef, between #ifndef and one empty line before #endif. #endif is followed by a comment containing the name of the guard macro. py/grammar.h cannot use header guards by design, since it has to be included multiple times in a single C file. Several other files also do not need header guards as they are only used internally and guaranteed to be included only once: * MICROPY_MPHALPORT_H * mpconfigboard.h * mpconfigport.h * mpthreadport.h * pin_defs_*.h * qstrdefs*.h 2017-02-16T05:51:16+00:00 Damien George damien.p.george@gmail.com 2017-02-16T04:59:51+00:00 urn:sha1:6ed77bedbded21f4f3513b21fbb8b17a1f3e709e 2017-02-16T05:51:16+00:00 Damien George damien.p.george@gmail.com 2017-02-16T04:55:36+00:00 urn:sha1:eb90edb5c05dd613c144e2b66dd303f2248593e5 2017-02-16T05:51:13+00:00 Damien George damien.p.george@gmail.com 2017-02-16T04:50:28+00:00 urn:sha1:dcdcc43dad0e1124a69e20fb6d008c7ffaf0e42a 2017-02-02T19:23:10+00:00 Nicko van Someren nicko@nicko.org 2017-02-01T23:41:22+00:00 urn:sha1:df0117c8ae213a0652c3b19a969edc7fd994eeab Updated modbuiltin.c to add conditional support for 3-arg calls to pow() using MICROPY_PY_BUILTINS_POW3 config parameter. Added support in objint_mpz.c for for optimised implementation. 2017-01-21T17:07:50+00:00 Paul Sokolovsky pfalcon@users.sourceforge.net 2017-01-21T17:07:50+00:00 urn:sha1:1b42f5251fb126496584e2fc61fad12bca7f7152