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a bit more explanation of site, here, up

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Howard Mao 2019-09-12 14:26:51 -07:00
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docs/Chipyard-Basics/Configs-Parameters-Mixins.rst
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@ -65,6 +65,11 @@ Thus, the order of the parameters being set will first start with the ``DefaultE
new DefaultExampleConfig
)
The ``site``, ``here``, and ``up`` objects in ``WithMyMoreComplexAcceleratorConfig`` are maps from configuration keys to their definitions.
The ``site`` map gives you the definitions as seen from the root of the configuration hierarchy (in this example, ``SomeAdditiveConfig``).
The ``here`` map gives the definitions as seen at the current level of the hierarchy (i.e. in ``WithMyMoreComplexAcceleratorConfig`` itself).
The ``up`` map gives the definitions as seen from the next level up from the current (i.e. from ``WithMyAcceleratorParams``).
Cake Pattern
-------------------------