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Saves 88 bytes on Thumb2, and 200 bytes on x86-64 archs.
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To let unix port implement "machine" functionality on Python level, and
keep consistent naming in other ports (baremetal ports will use magic
module "symlinking" to still load it on "import machine").
Fixes #1701.
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Compiles with mingw32, tested to work erratically under Wine due to
not fully implemented emulation in it.
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This solves long-standing non-deterministic bug, which manifested itself
on x86 32-bit (at least of reported cases) - segfault on Ctrl+C (i.e.
SIGINT).
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For builds where mp_uint_t is larger than size_t, it doesn't make
sense to use such a wide type for qstrs. There can only be as many
qstrs as there is address space on the machine, so size_t is the correct
type to use.
Saves about 3000 bytes of code size when building unix/ port with
MICROPY_OBJ_REPR_D.
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Only enabled for MICROPY_OBJ_REPR_D.
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size_t is the correct type to use to count things related to the size of
the address space. Using size_t (instead of mp_uint_t) is important for
the efficiency of ports that configure mp_uint_t to larger than the
machine word size.
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The GC should search for pointers within the heap. This patch makes a
difference when an object is larger than a pointer (eg 64-bit NaN
boxing).
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Ports will need to #define _DIRENT_HAVE_D_INO (0) to disable d_ino use.
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Similar to recently added feature in unix port: if event triggers for an
objects, its polling flags are automatically reset, so it won't be polled
until they are set again explicitly.
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This includes SPI4, SPI5 and SPI6.
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ilistdir() returns iterator which yields triples of (name, type, ino)
where ino is inode number for entry's data, type of entry (file/dir/etc.),
and name of file/dir. listdir() can be easily implemented in terms of this
iterator (which is otherwise more efficient in terms of memory use and may
save expensive call to stat() for each returned entry).
CPython has os.scandir() which also returns an iterator, but it yields
more complex objects of DirEntry type. scandir() can also be easily
implemented in terms of ilistdir().
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This allows to have single itertaor type for various internal iterator
types (save rodata space by not having repeating almost-empty type
structures). It works by looking "iternext" method stored in particular
object instance (should be first object field after "base").
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Following "don't rely on FFI for basic functionality" approach.
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This leaves behind the common functionality in extmod/machine_mem.c
which can be used by all ports.
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Was reported to break MacOSX build.
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This makes it much easier to understand which arg is which, less error
prone, and simpler to add a new arg.
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These functions will raise 'ValueError: math domain error' on invalid
input.
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Previously, SPI was configured by a board defining MICROPY_HW_ENABLE_SPIx
to 0 or 1. Now, the board should define MICROPY_HW_SPIx_SCK, MISO, MOSI
and NSS. This makes it the same as how I2C is configured.
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Addresses issue #1709.
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Updated for _os -> uos builtin module rename.
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This allows multiple versions (e.g. Debug/Release, x86/x64) of micropython.exe
to co-exist instead and also solves potential problems where msbuild does not
completely rebuild the output and/or pdb files when switching between builds,
which in turn can cause linker errors in dependent projects.
By default exe/map/... files go in windows/build/$(Configuration)$(Platform)
After each build micropython.exe is still copied from the above directory to
the windows directory though, as that is consistent with the other ports and
the test runner by default uses that location as well.
Also rename env.props -> path.props which is a clearer name,
and add ample documentation in the affected build files.
(also see discussion in #1538)
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After an I/O event is triggered for fd, event flags are automatically reset,
so no further events are reported until new event flags are set. This is
an optimization for uasyncio, required to account for coroutine semantics:
each coroutine issues explicit read/write async call, and once that trigger,
no events should be reported to coroutine, unless it again explicitly
requests it. One-shot mode saves one linear scan over the poll array.
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Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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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.
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Only IPSR and BASEPRI special registers supported at the moment, but easy
to extend in the future.
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uclibc objects call __GI_vsnprintf().
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Oftentimes, libc, libm, etc. don't come compiled with CPU compressed code
option (Thumb, MIPS16, etc.), but we may still want to use such compressed
code for MicroPython itself.
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At least it's defined as "unsiged". We don't try to support unicode still,
but at least apply workaround for DJGPP build.
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