1. 08 Feb, 2015 1 commit
    • Damien George's avatar
      py: Parse big-int/float/imag constants directly in parser. · 7d414a1b
      Damien George authored
      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.
      7d414a1b
  2. 13 Jan, 2015 1 commit
  3. 01 Jan, 2015 1 commit
  4. 27 Dec, 2014 2 commits
    • Damien George's avatar
      py: Allow to properly disable builtin slice operation. · 83204f34
      Damien George authored
      This patch makes the MICROPY_PY_BUILTINS_SLICE compile-time option
      fully disable the builtin slice operation (when set to 0).  This
      includes removing the slice sytanx from the grammar.  Now, enabling
      slice costs 4228 bytes on unix x64, and 1816 bytes on stmhal.
      83204f34
    • Damien George's avatar
      py: Allow to properly disable builtin "set" object. · e37dcaaf
      Damien George authored
      This patch makes MICROPY_PY_BUILTINS_SET compile-time option fully
      disable the builtin set object (when set to 0).  This includes removing
      set constructor/comprehension from the grammar, the compiler and the
      emitters.  Now, enabling set costs 8168 bytes on unix x64, and 3576
      bytes on stmhal.
      e37dcaaf
  5. 25 Oct, 2014 1 commit
    • Damien George's avatar
      py: Compress load-int, load-fast, store-fast, unop, binop bytecodes. · 8456cc01
      Damien George authored
      There is a lot potential in compress bytecodes and make more use of the
      coding space.  This patch introduces "multi" bytecodes which have their
      argument included in the bytecode (by addition).
      
      UNARY_OP and BINARY_OP now no longer take a 1 byte argument for the
      opcode.  Rather, the opcode is included in the first byte itself.
      
      LOAD_FAST_[0,1,2] and STORE_FAST_[0,1,2] are removed in favour of their
      multi versions, which can take an argument between 0 and 15 inclusive.
      The majority of LOAD_FAST/STORE_FAST codes fit in this range and so this
      saves a byte for each of these.
      
      LOAD_CONST_SMALL_INT_MULTI is used to load small ints between -16 and 47
      inclusive.  Such ints are quite common and now only need 1 byte to
      store, and now have much faster decoding.
      
      In all this patch saves about 2% RAM for typically bytecode (1.8% on
      64-bit test, 2.5% on pyboard test).  It also reduces the binary size
      (because bytecodes are simplified) and doesn't harm performance.
      8456cc01
  6. 12 May, 2014 1 commit
  7. 03 May, 2014 1 commit
    • Damien George's avatar
      Add license header to (almost) all files. · 04b9147e
      Damien George authored
      Blanket wide to all .c and .h files.  Some files originating from ST are
      difficult to deal with (license wise) so it was left out of those.
      
      Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
      04b9147e
  8. 27 Apr, 2014 1 commit
  9. 20 Apr, 2014 1 commit
  10. 17 Apr, 2014 1 commit
  11. 15 Apr, 2014 2 commits