51 lines
1.3 KiB
ReStructuredText
51 lines
1.3 KiB
ReStructuredText
********************************
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Cretonne Meta Language Reference
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********************************
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.. default-domain:: py
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.. highlight:: python
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The Cretonne meta language is used to define instructions for Cretonne. It is a
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domain specific language embedded in Python.
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An instruction set is described by a Python module under the :file:`meta`
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directory that has a global variable called ``instructions``. The basic
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Cretonne instruction set described in :doc:`langref` is defined by the Python
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module :mod:`cretonne.instrs`.
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.. module:: cretonne
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Types
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=====
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Concrete value types are represented as instances of :class:`cretonne.Type`. There are
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subclasses to represent scalar and vector types.
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.. inheritance-diagram:: Type ScalarType VectorType IntType FloatType
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:parts: 1
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.. autoclass:: Type
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.. autoclass:: ScalarType
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:members:
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.. autoclass:: VectorType
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:members:
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.. autoclass:: IntType
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:members:
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.. autoclass:: FloatType
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:members:
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Predefined types
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----------------
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.. automodule:: cretonne.types
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:members:
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Parametric polymorphism
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-----------------------
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.. currentmodule:: cretonne
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Instruction operands can be defined with *type variables* instead of concrete
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types for their operands. This makes the instructions polymorphic.
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.. autoclass:: TypeVar
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