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113 Commits

Author SHA1 Message Date
Damien George
d66ae18640 py: Simplify stack get/set to become stack adjust in emitters. 
Can do this now that the stack size calculation is improved.
 2014-04-10 17:28:54 +00:00
Damien George
069a35e3a5 py, compiler: Improve stack depth counting. 
Much less of a hack now.  Hopefully it's correct!
 2014-04-10 17:22:19 +00:00
Damien George
190d1ba297 py: Make sure state/stack of byte code function has at least 1 slot. 2014-04-10 16:59:56 +00:00
Damien George
6f355fd3b9 py: Make labels unsigned ints (converted from int). 
Labels should never be negative, and this modified type signature
reflects that.
 2014-04-10 14:11:31 +01:00
Damien George
2bf7c09222 py: Properly implement deletion of locals and derefs, and detect errors. 
Needed to reinstate 2 delete opcodes, to specifically check that a local
is not deleted twice.
 2014-04-09 15:26:46 +01:00
Damien George
922ddd6415 py, compile: Combine have_star_arg, have_dbl_star_arg into star_flags. 
Small reduction in ROM, heap and stack usage.
 2014-04-09 12:43:17 +01:00
Damien George
78035b995f py, compiler: Clean up and compress scope/compile structures. 
Convert int types to uint where sensible, and then to uint8_t or
uint16_t where possible to reduce RAM usage.
 2014-04-09 12:27:39 +01:00
Damien George
f4c9b33abf py: Remove DELETE_SUBSCR opcode, combine with STORE_SUBSCR. 
This makes the runtime and object APIs more consistent.  mp_store_subscr
functionality now moved into objects (ie list and dict store_item).
 2014-04-08 21:32:29 +01:00
Damien George
1d24ea5207 py: Finish implementation of all del opcodes. 
At this point, all opcodes are now implemented!

Some del opcodes have been combined with store opcodes, with the value
to store being MP_OBJ_NULL.
 2014-04-08 21:11:49 +01:00
Damien George
882b363564 py: Move to Python 3.4.0 compatibility. 
Very little has changed.  In Python 3.4 they removed the opcode
STORE_LOCALS, but in Micro Python we only ever used this for CPython
compatibility, so it was a trivial thing to remove.  It also allowed to
clean up some dead code (eg the 0xdeadbeef in class construction), and
now class builders use 1 less stack word.

Python 3.4.0 introduced the LOAD_CLASSDEREF opcode, which I have not
yet understood.  Still, all tests (apart from bytecode test) still pass.
Bytecode tests needs some more attention, but they are not that
important anymore.
 2014-04-02 15:56:31 +01:00
Damien George
e337f1ef5e py: Towards default keyword arguments. 
These are default arguments after a bare *.
 2014-03-31 15:18:37 +01:00
Damien George
523b575039 py: Add LOAD_NULL bytecode and use it to simplify function calls. 
Adding this bytecode allows to remove 4 others related to
function/method calls with * and ** support.  Will also help with
bytecodes that make functions/closures with default positional and
keyword args.
 2014-03-31 11:59:23 +01:00
Damien George
3056509e00 py: Rename and reorder parameters in emit_make_function/closure. 
In preparation for implementing default keyword arguments.
 2014-03-31 11:30:17 +01:00
Damien George
d17926db71 Rename rt_* to mp_*. 
Mostly just a global search and replace.  Except rt_is_true which
becomes mp_obj_is_true.

Still would like to tidy up some of the names, but this will do for now.
 2014-03-30 13:35:08 +01:00
Damien George
ce8f07adcd py: Rename emit_pre so they have globally unique names. 2014-03-27 23:30:26 +00:00
Damien George
2326d52d20 py: Factor out code from runtime.c to emitglue.c. 2014-03-27 23:26:35 +00:00
Damien George
bee17b00e3 py: Put n_state for bytecode in the bytecode prelude. 
Rationale: setting up the stack (state for locals and exceptions) is
really part of the "code", it's the prelude of the function.  For
example, native code adjusts the stack pointer on entry to the function.
Native code doesn't need to know n_state for any other reason.  So
putting the state size in the bytecode prelude is sensible.

It reduced ROM usage on STM by about 30 bytes :)  And makes it easier to
pass information about the bytecode between functions.
 2014-03-27 11:07:04 +00:00
Damien George
8dcc0c7924 py: Calculate maximum exception stack size in compiler. 2014-03-27 10:55:21 +00:00
Paul Sokolovsky
2447a5b582 py: Support closures with default args. 2014-03-26 23:17:44 +02:00
xbe
efe3422394 py: Clean up includes. 
Remove unnecessary includes. Add includes that improve portability.
 2014-03-17 02:43:40 -07:00
Paul Sokolovsky
a8d31b28bc emitbc: Correct buffer sizes for varlen int encoding. 
Assuming we have truncating (floor) division, way to do ceiling division
by N is to use formula (x + (N-1)) / N. Specifically, 63 bits, if stored
7 bits per byte, require exactly 9 bytes. 64 bits overflow that and require
10 bytes.
 2014-02-20 13:25:05 +02:00
Paul Sokolovsky
047cd40313 Bytecode int varlen encoding: support arbitrary values for signed ints too. 2014-02-19 15:53:41 +02:00
Paul Sokolovsky
0f96ec8268 Bytecode uint varlen encoding: support arbitrary values. 2014-02-19 15:52:57 +02:00
Paul Sokolovsky
ac2e28c654 Support passing positional args as keywords to bytecode functions. 
For this, record argument names along with each bytecode function. The code
still includes extensive debug logging support so far.
 2014-02-16 18:36:33 +02:00
Damien George
8725f8f7de py: Pass all scope flags through to runtime. 2014-02-15 19:33:11 +00:00
Paul Sokolovsky
520e2f58a5 Replace global "static" -> "STATIC", to allow "analysis builds". Part 2. 2014-02-12 18:31:30 +02:00
Damien George
9aa2a527b5 py: Tidy up BINARY_OPs; negation done by special NOT bytecode. 
IS_NOT and NOT_IN are now compiled to IS + NOT and IN + NOT, with a new
special NOT bytecode.
 2014-02-01 23:04:09 +00:00
Damien George
cbddb279bb py: Implement break/continue from an exception with finally. 
Still todo: break/continue from within the finally block itself.
 2014-02-01 20:08:18 +00:00
Damien George
fb083ea986 py: mp_execute_byte_code has 2 arg arrays, for more efficient default params. 2014-02-01 18:29:40 +00:00
Paul Sokolovsky
90750029df Implement default function arguments (for Python functions). 
TODO: Decide if we really need separate bytecode for creating functions
with default arguments - we would need same for closures, then there're
keywords arguments too. Having all combinations is a small exponential
explosion, likely we need just 2 cases - simplest (no defaults, no kw),
and full - defaults & kw.
 2014-02-01 15:38:22 +02:00
Damien George
62ad189a65 py: Add compile option to enable/disable source line numbers. 2014-01-29 21:51:51 +00:00
Damien George
08d075592f py: Fix bug with LOAD_METHOD; fix int->machine_int_t for small int. 
LOAD_METHOD bug was: emitbc did not correctly calculate the amount of
stack usage for a LOAD_METHOD operation.

small int bug was: int was being used to pass small ints, when it should
have been machine_int_t.
 2014-01-29 18:58:52 +00:00
Damien George
28eb57786d py: Optimise generated code for working out line numbers. 2014-01-25 11:43:20 +00:00
Damien George
41d02b654e py: Improve freeing of emitters in mp_compile. 
There can be multiple emitters allocated during compile (eg byte code
and native).
 2014-01-24 22:42:28 +00:00
Paul Sokolovsky
f46d87a30d Add support for freeing code emitter objects at the end of compilation. 2014-01-24 16:31:20 +02:00
Damien George
55baff4c9b Revamp qstrs: they now include length and hash. 
Can now have null bytes in strings.  Can define ROM qstrs per port using
qstrdefsport.h
 2014-01-21 21:40:13 +00:00
Damien George
cbd2f7482c py: Add module/function/class name to exceptions. 
Exceptions know source file, line and block name.

Also tidy up some debug printing functions and provide a global
flag to enable/disable them.
 2014-01-19 11:48:48 +00:00
Damien George
08335004cf Add source file name and line number to error messages. 
Byte code has a map from byte-code offset to source-code line number,
used to give better error messages.
 2014-01-18 23:24:36 +00:00
Damien George
8d4ccc49ed Merge branch 'master' of github.com:dpgeorge/micropython 2014-01-11 09:37:41 +00:00
Damien George
25042b19d2 py: Make arg to MP_BC_RAISE_VARARGS a byte. 2014-01-11 09:33:39 +00:00
John R. Lenton
b8698fca75 unified the bops 2014-01-11 00:58:59 +00:00
Damien George
e9906ac3d7 Add ellipsis object. 2014-01-04 18:44:46 +00:00
Damien George
1fb031744f Change mp_compile so that it returns a function object for the module. 2014-01-03 14:22:03 +00:00
Damien George
6baf76e28b py: make closures work. 2013-12-30 22:32:17 +00:00
Damien
d99b05282d Change object representation from 1 big union to individual structs. 
A big change.  Micro Python objects are allocated as individual structs
with the first element being a pointer to the type information (which
is itself an object).  This scheme follows CPython.  Much more flexible,
not necessarily slower, uses same heap memory, and can allocate objects
statically.

Also change name prefix, from py_ to mp_ (mp for Micro Python).
 2013-12-21 18:17:45 +00:00
Damien
a1b2693161 py: remove further unnecessary emit_verbatim code. 2013-12-12 15:34:40 +00:00
Damien
9ecbcfff99 py: work towards working closures. 2013-12-11 00:41:43 +00:00
Damien
03c9cfb015 Make byte code jumps relative. 2013-11-05 22:06:08 +00:00
Damien
6addc89e55 Byte code for SMALL_INT uses 3 bytes for integer. 2013-11-04 23:04:50 +00:00
Damien
27fb45eb1c Add local_num skeleton framework to deref/closure emit calls. 2013-10-20 15:07:49 +01:00
Damien
7bbd110691 Remove line in emitbc.c to print code size. 2013-10-18 19:57:17 +01:00
Damien
bd25445a82 Implement BC & runtime support for generator/yielding. 2013-10-16 20:39:12 +01:00
Damien
c025ebb2dc Separate out mpy core and unix version. 2013-10-12 14:30:21 +01:00
Damien
eb19efb27e Simplify and improve function & method calling. 2013-10-10 22:06:54 +01:00
Damien
7f5dacf345 Implement basic class/object in native code. 2013-10-10 11:24:39 +01:00
Damien
a397776d6b Implement basic class/object functionality in runtime. 2013-10-09 23:10:10 +01:00
Damien
826005c60b Add support for inline thumb assembly. 2013-10-05 23:17:28 +01:00
Damien
6cdd3af601 Implement built-in decorators to select emit type. 2013-10-05 18:08:26 +01:00
Damien
4b03e77d4a Factorise EMIT_COMMON calls, mostly into emit_pass1. 2013-10-05 14:17:09 +01:00
Damien
054848a1b8 Compiler computes labels and max_num_labels. 2013-10-05 13:44:41 +01:00
Damien
b05d707b23 Further factorise PASS_1 out of specific emit code. 2013-10-05 13:37:10 +01:00
Damien
415eb6f850 Restructure emit so it goes through a method table. 2013-10-05 12:19:06 +01:00
Damien
429d71943d Initial commit. 2013-10-04 19:53:11 +01:00