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.. |title| replace:: Low Level PyPy Runtime
.. |wp|    replace:: WP33
.. |start| replace:: WP31_
.. |p1|    replace:: X
.. |m1|    replace:: 3
.. |p2|    replace:: Y
.. |m2|    replace:: 3
.. |p3|    replace:: |e|
.. |m3|    replace:: |e|
.. |p4|    replace:: |e|
.. |m4|    replace:: |e|
.. |p5|    replace:: |e|
.. |m5|    replace:: |e|
.. |p6|    replace:: |e|
.. |m6|    replace:: |e|

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**Objectives**

- Providing a Runtime Library for PyPy

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**Description of work**

In order to give a working environment to the translated RPython
program, we need to build the low-level-specific **run-time**
components of PyPy.

- Design the object layout and implement it.
- Decide about memory management and implement it.
- Consider threading support and implement it. Make sure
  that the other components are thread-aware.
- Design and implement an efficient multimethod dispatch.

The target language is not yet decided on. We might go different
paths at the same time.
If producing C code is a target, important
parts can be directly re-used from CPython.

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**Deliverables**

DL??? Runtime Library for PyPy
DL??? Passing all applicable elements of the standard test suite.

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**Milestones and Expected Result**

- M2 with WP32_

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