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Was 1 or 2, now 0 or 1 (respectively). 0 means sample MISO on first
edge, 1 means sample on second edge.
Addresses issue #936.
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This way, if original parent object is GC'd, the memoryview still points
to the underlying buffer data so that buffer is not GC'd.
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This allows to implement KeyboardInterrupt on unix, and a much safer
ctrl-C in stmhal port. First ctrl-C is a soft one, with hope that VM
will notice it; second ctrl-C is a hard one that kills anything (for
both unix and stmhal).
One needs to check for a pending exception in the VM only for jump
opcodes. Others can't produce an infinite loop (infinite recursion is
caught by stack check).
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This gets CDC+HID working on Windows, since it needs a different PID for
a different USB configuration.
Thanks to tmbinc and dhylands.
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This should be pretty compliant with CPython, except perhaps for some
corner cases to do with globals/locals context.
Addresses issue #879.
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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.
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This saves a lot of RAM for 2 reasons:
1. For functions that don't have default values, var args or var kw
args (which is a large number of functions in the general case), the
mp_obj_fun_bc_t type now fits in 1 GC block (previously needed 2 because
of the extra pointer to point to the arg_names array). So this saves 16
bytes per function (32 bytes on 64-bit machines).
2. Combining separate memory regions generally saves RAM because the
unused bytes at the end of the GC block are saved for 1 of the blocks
(since that block doesn't exist on its own anymore). So generally this
saves 8 bytes per function.
Tested by importing lots of modules:
- 64-bit Linux gave about an 8% RAM saving for 86k of used RAM.
- pyboard gave about a 6% RAM saving for 31k of used RAM.
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For kilobytes and megabytes respectively.
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This is so it's compatible with Windows.
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Also change HID device from keyboard to mouse (should have been mouse
all along).
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association descriptor
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In unix port, mem_info(1) now prints pretty GC alloc table.
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Also move the raw bytecode printing code from emitglue to mp_bytecode_print.
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While extension to file.readinto() definition of CPython, the additional arg
is similar to what in CPython available in socket.recv_into().
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Addresses issue #921.
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Addresses issue #927.
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You can do:
make USE_PYDFU=1 deploy
to use pydfu.py
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It's purpose is for internal errors that are not catastrophic (ie not as
bad as RuntimeError). Since we don't use it, we don't need it.
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This allows you to register ExtInt on the MMA interrupt pin.
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TIM2_CH1_ETR is really bundling 2 functions to the same pin:
TIM2_CH1 (where its used as a channel)
TIM2_ETR (where iss used as an external trigger).
I fixed most of these a while back, but it looks like I missed this one.
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There is no need, since we don't (currently) use the value.
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Also make cc3k.send and cc3k.recv independent functions (not wrapped by
stream write/read). Also make wiznet5k.recv more memory efficient.
This might address issue #920.
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UART object now uses a stream-like interface: read, readall, readline,
readinto, readchar, write, writechar.
Timeouts are configured when the UART object is initialised, using
timeout and timeout_char keyword args.
The object includes optional read buffering, using interrupts. You can set
the buffer size dynamically using read_buf_len keyword arg. A size of 0
disables buffering.
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stmhal: Set entry point for ELF binary debugging
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mode argument is used to assert it works
encoding argument is used to make sure CPython uses the correct encoding
as it does not automatically use utf-8
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This makes open() and _io.FileIO() more CPython compliant.
The mode kwarg is fully iplemented.
The encoding kwarg is allowed but not implemented; mainly to allow
the tests to specify encoding for CPython, see #874
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When loading the ELF binary to the board with a debugger, the debugger
needs to know at which point to start executing the code. Currently the
entry point defaults to the start of the .text section.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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This fixed an issue with a certain SD card sometimes not initialising
first time round. See issue #822 for related, and thanks to
@iabdalkader for the idea.
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Also, usocket.readinto(). Known issue is that .readinto() should be available
only for binary files, but micropython uses single method table for both
binary and text files.
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Addresses issue #915.
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