pycca

KO | EN

Minimalist Open Source Repository Search Engine

gitlite — search

#typescript #ai-agents #deepseek-harness #dsh-plugin #open-source #ai #cli #claude-code #windows #codex #developer-tools #dsh

★ 55 Open GitHub ↗

Pure-python C and assembler compiler

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

PyCCA: Pure-python C compiler and assembler
===========================================

Luke Campagnola, 2014

> Documentation: http://pycca.readthedocs.org/en/latest/<br>
> Source: http://github.com/pycca/pycca<br>
> Installation: `pip install pycca`

Motivation
----------

Python is an excellent platform for numerical computing but relies
heavily on compiled modules to provide optimized functions. For 
distributed packages, this either increases the burden on the developer
to produce compiled binaries for a variety of platforms, or increases
the burden on the end user to compile the package or its binary 
dependencies. Consequently, many Python developers avoid optimzed
code, preferring instead to advertise "pure-python" as a feature
of their packages.

The objective of pycca is to provide a pure-python approach that
allows assembly and C functions to be compiled and executed at runtime
with no external dependencies.

Approach
--------

PyCCA allows assembler code to be compiled and executed within Python 
with no external dependencies. This works by:

1. Allocating a block of memory with execute privileges.
2. Compiling assembly instructions into machine code and writing to
   executable memory. 
3. Using the built-in ctypes package to create a python function that
   points to the compiled machine code.

Status
------

|  **C compiler:** |  **alpha**  |
|------------------|-------------|
|  **Assembler:**  |  **beta**   |

* Can load executable machine code into memory pages
  and call this executable code via ctypes.
* Functional assembly compiler with a relatively limited set of instructions
  (see examples.py and pycca/asm/instructions.py). All instructions
  are tested to produce identical output to the GNU assembly compiler.
* C compiler in early development
* Assembly examples have been tested on:

|           |            |  Linux  |   OSX   | Windows |
  |:----------|:-----------|:-------:|:-------:|:-------:|
  |  IA-32    | Python 2.7 |    X    |         |    X    |
  |           | Python 3.4 |    X    |         |         |
  | Intel-64  | Python 2.7 |    X    |    X    |         |
  |           | Python 3.4 |    X    |         |    X    |

* Unit tests pass on 64-bit and 32-bit Linux under python 2.7 and 3.4

Roadmap
-------

* Version 0.3: Basic C compiler (based on pre-parsed data structures) with 
  support for 32- and 64-bit calling conventions on Linux, OSX, and Windows.
  This will require adding many more floating point and other arithmetic
  instructions.
* Version 0.4: Parser supporting a subset of C language including functions,
  control flow, and basic data types. 
* Version 0.5: Add support for more SSE2, AVX instructions.

pycca

Explore Similar Repositories

Was this content helpful?

Recent Feedback

Download README