• C function annotations

  • PLACE_IN_ITCM
  • PLACE_IN_DTCM_BSS
  • MP_NO_INSTRUMENT
  • MP_COLD

• Better keyword arg checking in mp_arg_parse_all()

• mp_arg_validate_*(something, ..., qstr arg_name):

  • mp_arg_validate_int()
  • mp_arg_validate_int_min()
  • mp_arg_validate_int_max()
  • mp_arg_validate_int_range()
  • mp_arg_validate_type_float()
  • mp_arg_validate_obj_float_range()
  • mp_arg_validate_float_range()
  • mp_arg_validate_float_non_negative()
  • mp_arg_validate_length_range(): "%q length must be %d-%d"
  • mp_arg_validate_length_min()
  • mp_arg_validate_length_max()
  • mp_arg_validate_length()
  • mp_arg_validate_index_range(): "%q out of range"
  • mp_arg_validate_type()
  • mp_arg_validate_type_in()
  • mp_arg_validate_type_or_none()
  • mp_arg_validate_type_string()
  • mp_arg_validate_type_int()
  • mp_arg_error_invalid(): "Invalid %q"

• Eliminate compiler warnings

  • Define all preprocessor macros or use #if defined(FOO) && FOO
  • float-equal
  • cast-align

• binary.c:

  • type code x
  • allow turning off mpy nonstandard typecodes: P, O, S, e
  • val *= 256 instead of val <<= 8 (undefined behavior on left shift)
  • add overflow checks

• move externs to top level to prevent warnings

• gc_collect() after each import, to reduce fragmentation

• async:

  • distinguish between generators and async routines
  • implement _-await__()
  • disallow yield instead of await

• gc.c

  • debugging additions
  • gc_collect_ptr(void *ptr)
  • bool gc_ptr_on_heap(void *ptr)
  • memorymonitor
  • gc_alloc_possible()
  • test for attempted alloc while VM not running

• translation support

• qstr

  • names for characters: hyphen, space, etc.

• misc.h

  • sizeof_field()

• mkenv.mk

  • STEPECHO for quieter builds (also in mkrules.mk
  • verbose output: steps, commands, rules

• modbuiltins.c

  • catch dir() exceptions
  • add print(flush=)

• moderrno.c: common errors have strings

• modmath.c: remove redundant error message for ZeroDivisionError.

• modstruct.c: additional error checking

• better traceback supportL: obj.c, elsewhere

• some vfs mounts can persist across VM's

• can print compressed strings

• permanent pointers list: not to be gc'd

• stack usage measurement

• run background tasks during long-running longint operations

• num_bits()

• generic_subscpt iterator

• properties

  • MP_DEFINE_CONST_PROP_GET

• MP_DEFINE_MUTABLE_MAP and MP_DEFINE_MUTABLE_DICT, for module singletons, etc.

• avoid linking in 64-bit double routines:

  • mp_float_t uint64_to_float()
  • int64_t float_to_uint64()

• Use qstrs instead of strs for type names

• objarray.c

  • check that array initialization length is correct; don't round down
  • memoryview cast
  • array multiply implemented
  • allow appending an iterable to an array
  • find(), rfind(), index()
  • mp_obj_new_bytearray_of_zeros(): convenient for various things

  stopped at objedict