Commit Graph

20 Commits

Author SHA1 Message Date
Damien George 7f9d1d6ab9 py: Overhaul and simplify printf/pfenv mechanism.
Previous to this patch the printing mechanism was a bit of a tangled
mess.  This patch attempts to consolidate printing into one interface.

All (non-debug) printing now uses the mp_print* family of functions,
mainly mp_printf.  All these functions take an mp_print_t structure as
their first argument, and this structure defines the printing backend
through the "print_strn" function of said structure.

Printing from the uPy core can reach the platform-defined print code via
two paths: either through mp_sys_stdout_obj (defined pert port) in
conjunction with mp_stream_write; or through the mp_plat_print structure
which uses the MP_PLAT_PRINT_STRN macro to define how string are printed
on the platform.  The former is only used when MICROPY_PY_IO is defined.

With this new scheme printing is generally more efficient (less layers
to go through, less arguments to pass), and, given an mp_print_t*
structure, one can call mp_print_str for efficiency instead of
mp_printf("%s", ...).  Code size is also reduced by around 200 bytes on
Thumb2 archs.
2015-04-16 14:30:16 +00:00
Damien George b1bbe966c4 py: Combine load_attr and store_attr type methods into one (attr).
This simplifies the API for objects and reduces code size (by around 400
bytes on Thumb2, and around 2k on x86).  Performance impact was measured
with Pystone score, but change was barely noticeable.
2015-04-11 16:54:37 +01:00
Damien George ff8dd3f486 py, unix: Allow to compile with -Wunused-parameter.
See issue #699.
2015-01-20 12:47:20 +00:00
Damien George abc1959e2c py, unix, lib: Allow to compile with -Wold-style-definition. 2015-01-12 22:34:38 +00:00
Damien George 3765ea419a extmod: Prefix py/ for includes from py core directory. 2015-01-01 20:35:21 +00:00
Damien George 969a6b37bf py: Make functions static where appropriate. 2014-12-10 22:08:14 +00:00
Damien George be6d8be91e py: Rename mp_obj_int_get to mp_obj_int_get_truncated; fix struct.pack.
mp_obj_int_get_truncated is used as a "fast path" int accessor that
doesn't check for overflow and returns the int truncated to the machine
word size, ie mp_int_t.

Use mp_obj_int_get_truncated to fix struct.pack when packing maximum word
sized values.

Addresses issues #779 and #998.
2014-12-05 23:13:52 +00:00
Damien George 3b603f29ec Use MP_DEFINE_CONST_DICT macro to define module dicts.
This is just a clean-up of the code.  Generated code is exactly the
same.
2014-11-29 14:39:27 +00:00
Paul Sokolovsky 8bb71f0b06 moductypes: Make .sizeof() work with bytearrays. 2014-10-30 03:50:37 +02:00
Paul Sokolovsky 6d287a6a02 moductypes: When dereferencing a field which is array of uint8, use bytearray.
Because bytearrays are much friendlier to work with, e.g. they can be printed
easily.
2014-10-30 03:50:34 +02:00
Paul Sokolovsky 2559e13957 moductypes: Make sure we can apply .sizeof() to all aggregate types.
Before, sizeof() could be applied to a structure field only if that field
was itself a structure. Now it can be applied to PTR and ARRAY fields too.
It's not possible to apply it to scalar fields though, because as soon as
scalar field (int or float) is dereferenced, its value is converted into
Python int/float value, and all original type info is lost. Moreover, we
allow sizeof of type definitions too, and there int is used to represent
(scalar) types. So, we have ambiguity what int may be - either dereferenced
scalar structure field, or encoded scalar type. So, rather throw an error
if user tries to apply sizeof() to int.
2014-10-30 03:50:23 +02:00
Damien George 9336ee320a py: Make mp_binary_set_val work on big endian machine. 2014-10-06 15:05:35 +00:00
Dave Hylands 39296b40d4 Fix timer overflow code.
Teensy doesn't need to worry about overflows since all of
its timers are only 16-bit.

For PWM, the pulse width needs to be able to vary from 0..period+1
(pulse-width == period+1 corresponds to 100% PWM)

I couldn't test the 0xffffffff cases since we can't currently get a
period that big in python. With a prescaler of 0, that corresponds
to a freq of 0.039 (i.e. cycle every 25.56 seconds), and we can't
set that using freq or period.

I also tested both stmhal and teensy with floats disabled, which
required a few other code changes to compile.
2014-09-27 19:40:37 -07:00
Damien George e875e3882d extmod: Fix type-punned-ptr error. 2014-09-02 11:38:45 +01:00
Damien George ecc88e949c Change some parts of the core API to use mp_uint_t instead of uint/int.
Addressing issue #50, still some way to go yet.
2014-08-30 00:35:11 +01:00
Damien George 105e32f1a5 stmhal: Enable moductypes by default.
Also fixes compiler error in moductypes when compiled without debugging.

Addresses issue #778.
2014-08-12 20:02:26 +01:00
Paul Sokolovsky 5f47ebbf82 moductypes: Remove debug inclusion of stdio.h . 2014-08-10 10:11:22 +03:00
Damien George bb4c6f35c6 py: Make MP_OBJ_NEW_SMALL_INT cast arg to mp_int_t itself.
Addresses issue #724.
2014-07-31 10:49:14 +01:00
Paul Sokolovsky 2097c8b1e1 moductypes: Add symbolic constants to specify bitfield position/length. 2014-07-11 00:06:36 +03:00
Paul Sokolovsky 8215847b4d moductypes: Foreign data interface module, roughly based on ctype ideas.
But much smaller and memory-efficient. Uses Python builtin data structures
(dict, tuple, int) to describe structure layout.
2014-07-09 19:28:24 +03:00