#INDIRECTION IN FROZEN CODE#

The esp32 port has a new machine.ADCBlock class and updated ADC class. It also has the following commands added: -help, -version, version, resume, soft-reset, umount. Mpremote is now at version 0.3.0, with a progress indicator shown when copying large files, and recursive copy fixed on Windows.

#INDIRECTION IN FROZEN CODE#

This means that Python code can be pasted into the standard REPL without messing up the indentation. The littlefs2 library has been updated to v2.5.0 which includes some performance improvements and minor fixes.ДЄt the REPL, a tab will now insert an indent when it follows whitespace, and auto-indent is automatically disabled if a space or tab follows an auto-indent. Mpy-cross now supports the -march=armv6m option, which can be used with the rp2 port. Also support for MICROPY_PORT_BUILTIN_MODULES is removed because this is no longer needed. The MP_REGISTER_MODULE macro is now used to register all built-in C modules and the third argument to this macro has been removed. Also support for MICROPY_PORT_BUILTIN_MODULES is removed because this is no longer needed, and should be replaced by usage of MP_REGISTER_MODULE (see commit 0a92469c10542d57ef0ea6b6cf2ed0cae9491dbe for example). Any user-C-modules will need to be updated. The sys module can now be used to fully identify the MicroPython version and target it is running on (and the platform module provides additional information when it's available). The sys module has also had the MicroPython git version and build date appended to sys.version, sys.implementation._machine has been added, and renamed to sys.implementation._mpy. This can be useful, for example, to configure a different REPL for different boards so they can be easily distinguished. Built-in modules can now have (optional) mutable attributes, and this is used to implement sys.ps1/sys.ps2 which allow the user to customise the REPL prompt. In the runtime, support has been added for multiple *args and **args in a function call, following PEP 448. Due to the qstr indirection performance of the VM is slightly reduced on some benchmarks by a few percent, but the benefits of smaller code and reduced RAM usage are deemed to outweigh this. Heap memory use after import is also down by around 5% (more savings are seen if the code uses lots of constants).

mpy files see around a 10% reduction in size and frozen. Furthermore, any constant object can now be used in 'X = const(obj)' statements. The parser can also now turn a tuple of constants into a constant object, so the tuple doesn't need to be built at runtime each time it is used. The change to the bytecode means that code constants (like long strings, bytes objects and floats) are now shared and de-duplicated across the whole module, rather than each code object having a separate constant table. Along with this change, the jump opcodes have been optimised to emit 1-byte jump offsets when possible, which gives a good reduction in bytecode size, saving RAM and reducing the size of. This means bytecode (and most native code) does not need rewriting when it is imported. To achieve this, qstr references from bytecode (and native machine code) now go through a lookup table, to convert from local qstr number in the module to global qstr number in the runtime that the module executes within. The new format now contains data and bytecode organised to be mostly static and ready to run in-place. mpy file format has been significantly reworked and bumped to version 6. V1.19: New mpy 6 file format with improved bytecode, addition of renesas-ra port Source code and firmware can be downloaded from

After a bit of a delay, we are pleased to announce the next release of MicroPython, v1.19! There were 617 commits since the last release on 17th January 2022, so there were about 4.1 commits per day since then (it was 2.5 commits per day for the previous release).

Indirection in frozen