suspect-devices/circuitpython/py/showbc.c, 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 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: Add constant table to bytecode. 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-10-23T00:23:11+00:00 urn:sha1:713ea1800d1f0c82a0c75885ad034705556ab5ef Contains just argument names at the moment but makes it easy to add arbitrary constants. py: Put all bytecode state (arg count, etc) in bytecode. 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-10-22T22:45:37+00:00 urn:sha1:3a3db4dcf0400cffef860f61a84979cb1f7a7541 py: Reorganise bytecode layout so it's more structured, easier to edit. 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-03-18T17:47:47+00:00 urn:sha1:9b7f583b0ca37ee87e5fb82e2d65fcd96a609b2f py: Remove mp_load_const_bytes and instead load precreated bytes object. 2015-06-25T14:42:13+00:00 Damien George damien.p.george@gmail.com 2015-06-25T14:42:13+00:00 urn:sha1:59fba2d6ea31c134c9c0b88dc73cd25b236f167c Previous to this patch each time a bytes object was referenced a new instance (with the same data) was created. With this patch a single bytes object is created in the compiler and is loaded directly at execute time as a true constant (similar to loading bignum and float objects). This saves on allocating RAM and means that bytes objects can now be used when the memory manager is locked (eg in interrupts). The MP_BC_LOAD_CONST_BYTES bytecode was removed as part of this. Generated bytecode is slightly larger due to storing a pointer to the bytes object instead of the qstr identifier. Code size is reduced by about 60 bytes on Thumb2 architectures. py: Make showbc decode UNPACK_EX, and use correct range for unop/binop. 2015-06-18T15:12:17+00:00 Damien George damien.p.george@gmail.com 2015-06-18T15:12:17+00:00 urn:sha1:c8870b7c6969db23815da3c4ecfeaf2200ca2792 py: Remove LOAD_CONST_ELLIPSIS bytecode, use LOAD_CONST_OBJ instead. 2015-05-05T21:15:42+00:00 Damien George damien.p.george@gmail.com 2015-05-05T21:15:42+00:00 urn:sha1:8872abcbc4107c8d3eaf148a03813e607aa30bfb Ellipsis constant is rarely used so no point having an extra bytecode for it. py: Simplify bytecode prelude when encoding closed over variables. 2015-04-06T23:08:17+00:00 Damien George damien.p.george@gmail.com 2015-04-06T23:08:17+00:00 urn:sha1:c9aa1883ed87da61d5745036dc55c382c3f4d6ca py: Implement DELETE_GLOBAL in showbc.c. 2015-03-20T17:12:09+00:00 Damien George damien.p.george@gmail.com 2015-03-20T17:12:09+00:00 urn:sha1:8e9a71257dbbd60881f74f897b6447e457937063 py: Parse big-int/float/imag constants directly in parser. 2015-02-08T01:57:40+00:00 Damien George damien.p.george@gmail.com 2015-02-08T01:57:40+00:00 urn:sha1:7d414a1b52d193bab2c94cf56932e1eba23ba542 Previous to this patch, a big-int, float or imag constant was interned (made into a qstr) and then parsed at runtime to create an object each time it was needed. This is wasteful in RAM and not efficient. Now, these constants are parsed straight away in the parser and turned into objects. This allows constants with large numbers of digits (so addresses issue #1103) and takes us a step closer to #722.