CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=cross 2015-12-10T22:19:48+00:00 2015-12-10T22:19:48+00:00 Damien George damien.p.george@gmail.com 2015-12-08T12:28:11+00:00 urn:sha1:bdbe8c9ae21559f6dc0b8e1ad84b7bbec2a04726 Fixes #1684 and makes "not" match Python semantics. The code is also simplified (the separate MP_BC_NOT opcode is removed) and the patch saves 68 bytes for bare-arm/ and 52 bytes for minimal/. Previously "not x" was implemented as !mp_unary_op(x, MP_UNARY_OP_BOOL), so any given object only needs to implement MP_UNARY_OP_BOOL (and the VM had a special opcode to do the ! bit). With this patch "not x" is implemented as mp_unary_op(x, MP_UNARY_OP_NOT), but this operation is caught at the start of mp_unary_op and dispatched as !mp_obj_is_true(x). mp_obj_is_true has special logic to test for truthness, and is the correct way to handle the not operation. 2015-11-29T14:25:35+00:00 Damien George damien.p.george@gmail.com 2015-11-27T17:01:44+00:00 urn:sha1:999cedb90ff0827cdb9dfe0e4faa6ebc1739d271 This allows the mp_obj_t type to be configured to something other than a pointer-sized primitive type. This patch also includes additional changes to allow the code to compile when sizeof(mp_uint_t) != sizeof(void*), such as using size_t instead of mp_uint_t, and various casts. 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. 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. 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-10-22T22:45:37+00:00 urn:sha1:3a3db4dcf0400cffef860f61a84979cb1f7a7541 2015-11-13T12:49:18+00:00 Damien George damien.p.george@gmail.com 2015-03-18T17:47:47+00:00 urn:sha1:9b7f583b0ca37ee87e5fb82e2d65fcd96a609b2f 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. 2015-06-18T15:12:17+00:00 Damien George damien.p.george@gmail.com 2015-06-18T15:12:17+00:00 urn:sha1:c8870b7c6969db23815da3c4ecfeaf2200ca2792 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. 2015-04-06T23:08:17+00:00 Damien George damien.p.george@gmail.com 2015-04-06T23:08:17+00:00 urn:sha1:c9aa1883ed87da61d5745036dc55c382c3f4d6ca