Commit Graph

44 Commits

Author SHA1 Message Date
Damien George
b3b8706d27 py/asm: Add condition codes for signed comparisons.
Signed-off-by: Damien George <damien@micropython.org>
2020-06-27 00:24:04 +10:00
Damien George
aa26fe62d8 py/asm: Add funcs/macros to emit machine code for logical-shift-right.
Signed-off-by: Damien George <damien@micropython.org>
2020-06-27 00:24:04 +10:00
Damien George
69661f3343 all: Reformat C and Python source code with tools/codeformat.py.
This is run with uncrustify 0.70.1, and black 19.10b0.
2020-02-28 10:33:03 +11:00
Damien George
1396a026be py: Add support to save native, viper and asm code to .mpy files.
This commit adds support for saving and loading .mpy files that contain
native code (native, viper and inline-asm).  A lot of the ground work was
already done for this in the form of removing pointers from generated
native code.  The changes here are mainly to link in qstr values to the
native code, and change the format of .mpy files to contain native code
blocks (possibly mixed with bytecode).

A top-level summary:

- @micropython.native, @micropython.viper and @micropython.asm_thumb/
  asm_xtensa are now allowed in .py files when compiling to .mpy, and they
  work transparently to the user.

- Entire .py files can be compiled to native via mpy-cross -X emit=native
  and for the most part the generated .mpy files should work the same as
  their bytecode version.

- The .mpy file format is changed to 1) specify in the header if the file
  contains native code and if so the architecture (eg x86, ARMV7M, Xtensa);
  2) for each function block the kind of code is specified (bytecode,
  native, viper, asm).

- When native code is loaded from a .mpy file the native code must be
  modified (in place) to link qstr values in, just like bytecode (see
  py/persistentcode.c:arch_link_qstr() function).

In addition, this now defines a public, native ABI for dynamically loadable
native code generated by other languages, like C.
2019-03-08 15:53:05 +11:00
Damien George
6bda951d4d py/emitnative: Remove unused ptr argument from ASM_CALL_IND macro. 2018-10-13 15:16:33 +11:00
Damien George
25571800fc py/asmthumb: Remove unused fun_ptr arg from asm_thumb_bl_ind function. 2018-10-13 15:16:33 +11:00
Damien George
006671056d py/emitnative: Load native fun table ptr from const table for all archs.
All architectures now have a dedicated register to hold the pointer to the
native function table mp_fun_table, and so they all need to load this
register at the start of the native function.  This commit makes the
loading of this register uniform across architectures by passing the
pointer in the constant table for the native function, and then loading the
register from the constant table.  Doing it this way means that the pointer
is not stored in the assembly code, helping to make the code more portable.
2018-10-13 15:16:33 +11:00
Damien George
87231132d4 py/asmthumb: Extend asm entry/exit to handle stack larger than 508 bytes 2018-09-30 23:31:17 +10:00
Damien George
07ccb192c5 py/asmthumb: Add wide ldr to handle larger offsets.
In particular this allows native functions on Thumb2 to index more than 32
constants in the constant table.
2018-09-30 23:27:01 +10:00
Damien George
2e86233263 py/asm*: Remove ASM_MOV_REG_ALIGNED_IMM emit macro, it's no longer used.
After the previous commit this macro is no longer needed by the native
emitter because live heap pointers are no longer stored in generated native
machine code.
2018-09-27 23:39:08 +10:00
Damien George
2964b41c28 py/asm*: Support assembling code to jump to a register, and get PC+off.
Useful for position independent code, and implementing state machines.
2018-08-16 13:45:24 +10:00
Damien George
10830059c5 py/emitnative: Fix x86 native zero checks by comparing full word.
On x86 archs (both 32 and 64 bit) a bool return value only sets the 8-bit
al register, and the higher bits of the ax register have an undefined
value.  When testing the return value of such cases it is required to just
test al for zero/non-zero.  On the other hand, checking for truth or
zero/non-zero on an integer return value requires checking all bits of the
register.  These two cases must be distinguished and handled correctly in
generated native code.  This patch makes sure of this.

For other supported native archs (ARM, Thumb2, Xtensa) there is no such
distinction and this patch does not change anything for them.
2018-08-04 22:03:49 +10:00
Damien George
ef12a4bd05 py: Refactor how native emitter code is compiled with a file per arch.
Instead of emitnative.c having configuration code for each supported
architecture, and then compiling this file multiple times with different
macros defined, this patch adds a file per architecture with the necessary
code to configure the native emitter.  These files then #include the
emitnative.c file.

This simplifies emitnative.c (which is already very large), and simplifies
the build system because emitnative.c no longer needs special handling for
compilation and qstr extraction.
2018-04-10 15:06:47 +10:00
Damien George
564a95cb04 py/emitnative: Clean up asm macro names so they have dest as first arg.
All the asm macro names that convert a particular architecture to a generic
interface now follow the convention whereby the "destination" (usually a
register) is specified first.
2017-11-15 11:46:49 +11:00
Alexander Steffen
55f33240f3 all: Use the name MicroPython consistently in comments
There were several different spellings of MicroPython present in comments,
when there should be only one.
2017-07-31 18:35:40 +10:00
Alexander Steffen
299bc62586 all: Unify header guard usage.
The code conventions suggest using header guards, but do not define how
those should look like and instead point to existing files. However, not
all existing files follow the same scheme, sometimes omitting header guards
altogether, sometimes using non-standard names, making it easy to
accidentally pick a "wrong" example.

This commit ensures that all header files of the MicroPython project (that
were not simply copied from somewhere else) follow the same pattern, that
was already present in the majority of files, especially in the py folder.

The rules are as follows.

Naming convention:
* start with the words MICROPY_INCLUDED
* contain the full path to the file
* replace special characters with _

In addition, there are no empty lines before #ifndef, between #ifndef and
one empty line before #endif. #endif is followed by a comment containing
the name of the guard macro.

py/grammar.h cannot use header guards by design, since it has to be
included multiple times in a single C file. Several other files also do not
need header guards as they are only used internally and guaranteed to be
included only once:
* MICROPY_MPHALPORT_H
* mpconfigboard.h
* mpconfigport.h
* mpthreadport.h
* pin_defs_*.h
* qstrdefs*.h
2017-07-18 11:57:39 +10:00
Damien George
c8746e1e72 py: Move arch-specific assembler macros from emitnative to asmXXX.h. 2016-12-09 16:51:49 +11:00
Damien George
612599587b py: Factor out common code from assemblers into asmbase.[ch].
All assemblers should "derive" from mp_asm_base_t.
2016-11-28 09:24:50 +11:00
Damien George
096d1e4512 py: Add lsl/lsr/asr opcode support to inline Thumb2 assembler. 2015-10-19 14:26:19 +01:00
Damien George
9988618e0e py: Implement full func arg passing for native emitter.
This patch gets full function argument passing working with native
emitter.  Includes named args, keyword args, default args, var args
and var keyword args.  Fully Python compliant.

It reuses the bytecode mp_setup_code_state function to do all the hard
work.  This function is slightly adjusted to accommodate native calls,
and the native emitter is forced a bit to emit similar prelude and
code-info as bytecode.
2015-04-07 22:43:28 +01:00
Damien George
9f142f0c84 py: For inline assembler, add bcc_n and bcc_w ops.
Addresses issue #1143.
2015-03-02 14:29:52 +00:00
Damien George
534574348e py: Make inline assembler raise exception when branch not in range.
Addresses issue #1132.
2015-02-25 15:45:55 +00:00
Damien George
e41b21c01e py: Make more asmthumb functions inline to reduce code size. 2015-02-24 16:32:52 +00:00
Damien George
eff10f66a6 py: Implement bl/bx instructions for inline Thumb assembler. 2015-02-16 18:17:07 +00:00
Damien George
42495392da py: Implement "it" instruction for inline Thumb assembler. 2015-02-16 17:46:49 +00:00
Damien George
ebde3c694f py: Add guarded includes for asm-based headers. 2015-01-01 18:07:43 +00:00
Damien George
0b610de017 py: Make macro names in assemblers consistent, and tidy up a bit. 2014-09-29 19:42:06 +01:00
Damien George
851f15f34c py: In asmthumb, clean up unit/int types and ite ops. 2014-09-29 19:42:06 +01:00
Damien George
8105736982 py: Clean up x86-64 native assembler; allow use of extended regs.
Native x86-64 now has 3 locals in registers.
2014-09-07 01:06:19 +01:00
Damien George
40f3c02682 Rename machine_(u)int_t to mp_(u)int_t.
See discussion in issue #50.
2014-07-03 13:25:24 +01:00
Damien George
36db6bcf54 py, compiler: Improve passes; add an extra pass for native emitter. 2014-05-07 17:24:22 +01:00
Damien George
04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George
e5f8a77db6 py: Add 'align' and 'data' meta-instructions to inline assembler. 2014-04-21 13:33:15 +01:00
Damien George
90edf9e13b inlinethumb: Add wfi, cpsid and cpsie instructions. 2014-04-18 16:56:54 +01:00
Damien George
8721087661 py: Big improvements to inline assembler.
Improved the Thumb assembler back end.  Added many more Thumb
instructions to the inline assembler.  Improved parsing of assembler
instructions and arguments.  Assembler functions can now be passed the
address of any object that supports the buffer protocol (to get the
address of the buffer).  Added an example of how to sum numbers from
an array in assembler.
2014-04-13 00:30:32 +01:00
Damien George
a26dc50968 py: Improve inline assembler; improve compiler constant folding. 2014-04-12 17:54:52 +01:00
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
47e1b85d9c py: Improve inline assembler; add a few more opcodes. 2014-04-08 18:28:33 +01:00
Damien
9b9e996df6 Support for for-loop in native thumb. 2013-11-03 14:25:43 +00:00
Damien
1a6633a74d Implement more thumb branch instructions. 2013-11-03 13:58:19 +00:00
Damien
03d4124320 Add b_n opcode to inline thumb asm. 2013-10-06 00:36:05 +01:00
Damien
826005c60b Add support for inline thumb assembly. 2013-10-05 23:17:28 +01:00
Damien
5bfb759980 Incorporate emit_thumb into new emit framework. 2013-10-05 18:41:24 +01:00
Damien
429d71943d Initial commit. 2013-10-04 19:53:11 +01:00