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Hi

Please see
micropython#11735

The official page
https://docs.micropython.org/en/latest/genrst/builtin_types.html#float
should be updated about the different result of

float('_')

(and eventually other inconsistencies) between Python and MicroPython.

dpgeorge and others added 29 commits August 22, 2025 13:30
This is a pretty fundamental module, and even minimal ports like unix and
zephyr minimal have it enabled.  So, enabled it by default at the lowest
feature level.

Most things in the `sys` module are configurable, and off by default, so it
shouldn't add too much to ports that don't already have it enabled (which
is just the minimal port).

Also note that `sys` is still disabled on the bare-arm port, to keep that
ultra minimal.  It means we now have bare-arm without `sys` and the minimal
port with `sys`.  That will allow different code size comparisons if/when
new `sys` features are added.

Signed-off-by: Damien George <[email protected]>
The official mcux-sdk follows a slightly different structure to the
current nxp_sdk submodule, with many drivers moved to a common location.

To ease updating the newer versions of the SDK and/or add new families
the nxp_sdk submodule has been updated to follow the structure of
mcux-sdk, just trimmed down to families used here to considerably
reduce the size.

Signed-off-by: Andrew Leech <[email protected]>
These were regenerated by the NXP Config tool for v2.11.

The board_init update was needed to ensure CLOCK_SetMode() is run
at the appropriate time during startup.

Signed-off-by: Andrew Leech <[email protected]>
If while a polling operation is active the stream is removed we should
stop polling data from that stream.

This was already the intended behaviour, but implemented incorrectly.

Signed-off-by: Daniël van de Giessen <[email protected]>
When disconnecting from PPP the modem sends a confirmation. This message
is received, like all messages, through the poll() method. lwIP may then
immediately call our status callback with code PPPERR_USER to indicate
the connection was closed. Our callback then immediately proceeds to
free the PCB. Thus, during each new iteration of the loop in poll() we
must check if we haven't disconnected in the meantime to prevent calling
the pppos_input_tcpip with a PCB that is now NULL.

Signed-off-by: Daniël van de Giessen <[email protected]>
This commit changes the "viper_ptr*_store_boundary" tests to make them
fail more gracefully in low memory conditions.

The original version of the tests compiled viper code blocks on the fly
when it needed them, making them fail at runtime on some boards that do
not come with enough memory for this test.  This clashes with
"run-tests.py"'s ability to look for a particular signature to mark
tests as skipped due to not enough memory.

Now compiled code blocks are generated at the beginning of the test
inside an appropriate exception handler.  In case of a memory error when
pre-compiling a code block, the running test exits reporting a low
memory condition to the test runner.  This allows to have clean test
runs on all platforms when it comes to viper pointer tests.

Signed-off-by: Alessandro Gatti <[email protected]>
This commit lets board use a different floating point mode rather than
the usual soft-float that was the original default for all QEMU-based
boards.

The configuration options are the same available in the "stm32" port.
Boards can set "MICROPY_FLOAT_IMPL" to either "float", "double", or
"none" to indicate which floating point mode they want, and optionally
"SUPPORTS_HARDWARE_FP_SINGLE" or "SUPPORTS_HARDWARE_FP_DOUBLE" can be
set to 1 to further indicate the hardware capabilities of the hardware
floating point unit, if present.

Signed-off-by: Alessandro Gatti <[email protected]>
This commit introduces a new target for the QEMU port called
"MPS2_AN500", an ARMv7-M machine with a Cortex-M7 CPU and
single-/double-precision floating point unit.

Signed-off-by: Alessandro Gatti <[email protected]>
This commit extends the QEMU port's CPU error handler for the Arm target
by printing out in detail the ARMv7-M debug registers if the firmware is
compiled for such a target.

Signed-off-by: Alessandro Gatti <[email protected]>
This commit lets CI extend the testing scope of the QEMU Arm target, by
letting it perform the usual battery of tests (interpreter and natmods)
also on hardfp targets.

The default board for Arm testing lacks hardware floating point support,
so natmods weren't tested in that specific configuration.  With the
introduction of the "MPS_AN500" QEMU target, now this is made possible
as said board emulates a Cortex-M7 machine with a single- and
double-precision floating point unit.

To reduce the impact on build times, the "ci_qemu_build_arm_thumb" CI
step was split in two: "ci_qemu_build_arm_thumb_softfp" and
"ci_qemu_build_arm_thumb_hardfp" - so hopefully those can run in
parallel whenever possible.

Signed-off-by: Alessandro Gatti <[email protected]>
This commit fixes a linking issue on certain Arm toolchains where
library code is compiled with exception support.

If a library with exception support is included in the MicroPython
build, the linker had no place to put the stack unwinding tables
necessary to perform exception handling at runtime.  This change adds a
new section to the linkerscript (and therefore the final ELF file) where
that data can be placed into.

Signed-off-by: Alessandro Gatti <[email protected]>
This commits lifts the unconditional restriction on inline assembler FPU
tests for the Qemu platform, and makes said restriction conditional to
the lack of an available floating point unit on the running platform.

The Qemu platform supported only emulated machines that could target up
to a Cortex-M3, so an ArmV7-M target that had no support for floating
point.  With the addition of MPS2_AN500 to the list of emulated targets
the range was extended to cover up to Cortex-M7, so a floating point
unit may possibly be available and thus able to run the FPU inlineasm
tests.

For that, the test runner was changed to detect the running architecture
when checking the target capabilities; if the target reports its
MicroPython architecture to be either "armv7emsp" or "armv7emdp"
(providing single-precision and double-precision floating point unit
support respectively) then the FPU-only inline tests are not put into
the blocked tests list.

Signed-off-by: Alessandro Gatti <[email protected]>
This was missed as part of the transition to make_new a mp_obj_type_t slot.

See also: 94beeab

Signed-off-by: David Schneider <[email protected]>
This commit lets "tools/mpy-tool.py" extract MPY segments into their own
files, one file per segment.

A pair of new command line arguments were added, namely "-e"/"--extract"
that takes a filename prefix to use as a base for the generated files'
name, and "--extract-only" that - combined with "--extract" - allows
selecting which kinds of segment should be dumped to the filesystem.

So, for example, assuming there's a file called "module.mpy", running
"./mpy-tool.py --extract segments module.mpy" would yield a series of
files with names like "segments_0_module.py_QSTR_module.py.bin",
"segments_1_module.py_META__module_.bin",
"segments_2_module.py_QSTR_function.bin", etc.  In short the file name
format is "<base>_<count>_<sourcefile>_<segmentkind>_<segmentname>.bin",
with <segmentkind> being META, QSTR, OBJ, or CODE.  Source file names
and segment names will only contain characters in the range
"a-zA-Z0-9_-." to avoid having output file names with unexpected
characters.

The "--extract-only" option can accept one or more kinds, separated by
commas and treated as case insensitive strings.  The supported kinds
match what is currently handled by the "MPYSegment" class in
"tools/mpy-tool.py": "META", "QSTR", "OBJ", and "CODE".  The absence of
this command line option implies dumping every segment found.

If "--extract" is passed along with "--merge", dumping is performed
after the merge process takes place, in order to dump all possible
segments that match the requested segment kinds.

Signed-off-by: Alessandro Gatti <[email protected]>
The `thread/thread_gc1.py` test is a constant source of spurious failures
in Github CI.

This commit adds it to the list of tests skipped when running on Github CI
using either macos, qemu_riscv64, qemu_mips, or qemu_arm, to help reduce
the overall false positive rate and improve the predictive value of the
test fail indication.

Signed-off-by: Anson Mansfield <[email protected]>
These functions were removed in 6c9fca2 for v1.9.3.  This commit removes
their declarations as well.

See-also: 6c9fca2
Signed-off-by: Anson Mansfield <[email protected]>
Re-organize `mp_parse_num_integer()` (for longlong) slightly so that the
most negative 64-bit integer can be parsed.

Fixes issue #17932.

Signed-off-by: Jeff Epler <[email protected]>
These files are only built on demand for developers, and it is a quick
process.

Without FORCE, a sequence like this would leave the developer with an
outdated `main.pp` to inspect:

    make build-standard/main.pp
    touch input.h
    make build-standard/main.pp # Rebuilds now, wouldn't have before

Signed-off-by: Jeff Epler <[email protected]>
So it can be reused by other test runners.

Signed-off-by: Damien George <[email protected]>
Back in commit 8978102 (see PR #16111) the
`run-tests.py` script was changed to use an improved way of selecting the
test instance, eg:

    $ ./run-tests.py -t a0

that would run on /dev/ttyACM0.  This has been a very nice improvement,
makes it easier to specify the target.

This commit updates `run-multitests.py` to use the same scheme.  It
previously used `-i` but now that's changed to `-t`.

Signed-off-by: Damien George <[email protected]>
Following the similar change to `run-tests.py` and `run-multitests.py`.
What was previously, eg, `-p -d /dev/ttyACM0` is now `-t a0`.

Signed-off-by: Damien George <[email protected]>
And the existing "-t" option is changed to "-m" (shorthand for the
"--diff-time" option).

Signed-off-by: Damien George <[email protected]>
The unix port doesn't have `micropython.alloc_emergency_exception_buf()`
but it's still possible to run and pass this test.  So make that call
optional.

Signed-off-by: Damien George <[email protected]>
These were missed in 2bba507 because they
didn't use the `os.stat` pattern.

Signed-off-by: Damien George <[email protected]>
Reduces ESP32_GENERIC_C6 application flash size from 2024432 to
1813216 (206KB smaller).

Also has benefit of reducing D/IRAM size, increasing free memory at
runtime (167187 to 148584, -18603 bytes).

Most of this savings comes from building with -Os instead of -O2,
but about 10KB comes from using the SPI flash functions from the ROM.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <[email protected]>
Same optimisation that was applied to C6 in the parent commit, now applied
to all RISC-V boards.

    +------------+------------+------------+------------+
    | Size       | Before     | After      | Delta      |
    +------------+------------+------------+------------+
    | C2 Binary  | 1680384    | 1494224    | -186160    |
    | C2 D/IRAM  |   83710    |   79080    |   -4630    |
    | C3 Binary  | 1833328    | 1636624    | -196704    |
    | C3 D/IRAM  |  139608    |  131896    |   -7712    |
    +------------+------------+------------+------------+

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <[email protected]>
I2S works on the ESP32-C6, and it now has enough space to fit.

Signed-off-by: Jimisola Laursen <[email protected]>
Signed-off-by: Damien George <[email protected]>
dpgeorge and others added 30 commits October 6, 2025 12:35
When calling from Python into JavaScript and passing along keyword
arguments, the FFI bindings currently only support at most 1 positional
argument. For example:

    import js
    js.func(1, b=2, c=3)

This commit fixes that by supporting arbitrary number of positional
arguments, in combination with keyword arguments.  So now the following
works:

    import js
    js.func(1, 2, c=3, d=4)

Tests are added for these new, supported cases.

Signed-off-by: Damien George <[email protected]>
Correctly format integers when there are leading zeros with a grouping
character, such as "{:04,d}".format(0x100) -> "0,256".

The new padding patterns for commas-and-zeroes and underscores-and-zeroes
are smooshed together into the existing pad_zeroes to save space.

Only the two combinations of (decimal + commas) and (other bases +
underscores) are properly supported.

Also add a test for it.

Fixes issue #18082.

Signed-off-by: Jeff Epler <[email protected]>
The esp32 I2C driver sets a global timeout during init.  The functionality
for this is currently only correct for original esp32 and esp32-s2, newer
parts have a slightly different argument which is log-base-2 of the
timeout.

Note that `i2c_set_timeout()` is a thin layer around `i2c_ll_set_tout()`
with the latter writing directly to the hardware register.  So the timeout
argument passed to `i2c_set_timeout()` needs to be in units calculated by
`i2c_ll_calculate_timeout_us_to_reg_val()`.

Signed-off-by: Andrew Leech <[email protected]>
Don't simply hard-code a parallelism of 3 for the build.

Signed-off-by: Jeff Epler <[email protected]>
Changes of interest could be in emitted mpy frozen files.

Signed-off-by: Jeff Epler <[email protected]>
For instance, to compare HEAD to origin/master on only the minimal x86
build, use

    PORTS_TO_CHECK=m REFERENCE=origin/master tools/ci.sh code_size_build

Signed-off-by: Jeff Epler <[email protected]>
This is a necessary step to allow cleanly building the xtensa port during
CI, as it's undesirable to apply the esp-idf environment settings while
building other ports.

PRE_CMD_<letter> can be used to override the command, or add a command if
not otherwise specified.  Note that <letter> is case sensitive.

Signed-off-by: Jeff Epler <[email protected]>
It was removed (possibly inadvertently)
in 4c55b08

Signed-off-by: Jeff Epler <[email protected]>
Regression from 449866c.

Signed-off-by: Angus Gratton <[email protected]>
Remove CONFIG_NEWLIB_LIBC=y, as it seems it is now unecessary.

Signed-off-by: Vdragon <[email protected]>
Adds overlay and conf for RPi Pico2 ARM cpu on the zephyr port.

Signed-off-by: Vdragon <[email protected]>
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