suspect-devices/circuitpython/py/vm.c, branch 2.2.0 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=2.2.0 2017-07-31T08:35:40+00:00 all: Use the name MicroPython consistently in comments 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. py/vm: Make n_state variable local to just set-up part of VM. 2017-07-18T06:17:23+00:00 Damien George damien.p.george@gmail.com 2017-07-18T06:17:23+00:00 urn:sha1:016325dd0a5ad0904378004e728ccca19ee2b30d It's not used anywhere else in the VM loop, and clashes with (is shadowed by) the n_state variable that's redeclared towards the end of the mp_execute_bytecode function. Code size is unchanged. py/vm: Make "if" control flow more obvious in YIELD_FROM opcode. 2017-07-03T16:14:25+00:00 Damien George damien.p.george@gmail.com 2017-07-03T16:14:25+00:00 urn:sha1:9ed5e80eea71c8392b7c178d2e2b69e2428850d8 py: Provide mp_decode_uint_skip() to help reduce stack usage. 2017-06-09T03:36:33+00:00 Damien George damien.p.george@gmail.com 2017-06-09T03:31:57+00:00 urn:sha1:a8a5d1e8c8db3b7c64e1921005ceb5a5d47280f4 Taking the address of a local variable leads to increased stack usage, so the mp_decode_uint_skip() function is added to reduce the need for taking addresses. The changes in this patch reduce stack usage of a Python call by 8 bytes on ARM Thumb, by 16 bytes on non-windowing Xtensa archs, and by 16 bytes on x86-64. Code size is also slightly reduced on most archs by around 32 bytes. various: Spelling fixes 2017-05-29T08:36:05+00:00 Ville Skyttä ville.skytta@iki.fi 2017-05-29T07:08:14+00:00 urn:sha1:ca16c3821053e5bf2b87aeb10007f73f31dc1eac py/vm: Fix bug with unwind jump popping the iterator from a for loop. 2017-05-25T10:39:08+00:00 Damien George damien.p.george@gmail.com 2017-05-25T10:39:08+00:00 urn:sha1:04d05db27ec4a160dcb3d3ff2934184fef455dbf This patch fixes a regression introduced by 088740ecc40476fd0796a3ef6a68ee7c677eae64 py/vm: Fix bug with stackless mode and unwinding of exceptions. 2017-05-25T10:35:57+00:00 Damien George damien.p.george@gmail.com 2017-05-25T10:35:57+00:00 urn:sha1:68e71eacb8f5e67f9765ccd8639ca359bc3417de This patch fixes a regression introduced by 71a3d6ec3bd02c5bd13334537e1bd146bb643bad Previous to this patch the n_state variable was referring to that computed at the very start of the mp_execute_bytecode function. This patch fixes it so that n_state is recomputed when the code_state changes. py: Add LOAD_SUPER_METHOD bytecode to allow heap-free super meth calls. 2017-04-22T13:39:20+00:00 Damien George damien.p.george@gmail.com 2017-04-18T23:45:59+00:00 urn:sha1:dd11af209d226b7d18d5148b239662e30ed60bad This patch allows the following code to run without allocating on the heap: super().foo(...) Before this patch such a call would allocate a super object on the heap and then load the foo method and call it right away. The super object is only needed to perform the lookup of the method and not needed after that. This patch makes an optimisation to allocate the super object on the C stack and discard it right after use. Changes in code size due to this patch are: bare-arm: +128 minimal: +232 unix x64: +416 unix nanbox: +364 stmhal: +184 esp8266: +340 cc3200: +128 py/vm: Fix VM opcode tracing to print correct stack pointer. 2017-03-26T23:52:04+00:00 Damien George damien.p.george@gmail.com 2017-03-26T23:52:04+00:00 urn:sha1:a0973b09ce203be95729ed8215f9333a29caa35d Also const_table is now moved to the code_state->fun_bc structure. py: Use mp_locals/mp_globals accessor funcs instead of MP_STATE_CTX. 2017-03-24T07:41:11+00:00 Damien George damien.p.george@gmail.com 2017-03-24T07:41:11+00:00 urn:sha1:707f16b05c663ec3bdaf0ab0713e349638acd0fe To improve maintainability of the code.