LUTs are on-chip, read-only memories of fixed size. LUTs can be specified as 1 to 5 dimensional.
LUTs can be created from files using the fromFile methods in the LUT object. This file reading is currently done at compilation time.
Static methods
| object LUT | |
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def apply[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim: :doc:`Int <../../common/fixpt>`)(elems: T*): :doc:`LUT1 <lut>`[T]
Creates a 1-dimensional read-only lookup table with given elements.
The number of supplied elements must match the given dimensions.
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def apply[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`)(elems: T*): :doc:`LUT2 <lut>`[T]
Creates a 2-dimensional read-only lookup table with given elements.
The number of supplied elements must match the given dimensions.
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def apply[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`, dim3: :doc:`Int <../../common/fixpt>`)(elems: T*): :doc:`LUT3 <lut>`[T]
Creates a 3-dimensional read-only lookup table with given elements.
The number of supplied elements must match the given dimensions.
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def apply[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`, dim3: :doc:`Int <../../common/fixpt>`, dim4: :doc:`Int <../../common/fixpt>`)(elems: T*): :doc:`LUT4 <lut>`[T]
Creates a 4-dimensional read-only lookup table with given elements.
The number of supplied elements must match the given dimensions.
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def apply[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`, dim3: :doc:`Int <../../common/fixpt>`, dim4: :doc:`Int <../../common/fixpt>`, dim5: :doc:`Int <../../common/fixpt>`)(elems: T*): :doc:`LUT5 <lut>`[T]
Creates a 5-dimensional read-only lookup table with given elements.
The number of supplied elements must match the given dimensions.
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def fromFile[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`)(filename: :doc:`String <../../sw/string>`): :doc:`LUT1 <lut>`[T]
Creates a 1-dimensional read-only lookup table from the given data file.
Note that this file is read during compilation, not runtime.
The number of supplied elements must match the given dimensions.
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def fromFile[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`)(filename: :doc:`String <../../sw/string>`): :doc:`LUT2 <lut>`[T]
Creates a 2-dimensional read-only lookup table from the given data file.
Note that this file is read during compilation, not runtime.
The number of supplied elements must match the given dimensions.
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def fromFile[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`, dim3: :doc:`Int <../../common/fixpt>`)(filename: :doc:`String <../../sw/string>`): :doc:`LUT3 <lut>`[T]
Creates a 3-dimensional read-only lookup table from the given data file.
Note that this file is read during compilation, not runtime.
The number of supplied elements must match the given dimensions.
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def fromFile[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`, dim3: :doc:`Int <../../common/fixpt>`, dim4: :doc:`Int <../../common/fixpt>`)(filename: :doc:`String <../../sw/string>`): :doc:`LUT4 <lut>`[T]
Creates a 4-dimensional read-only lookup table from the given data file.
Note that this file is read during compilation, not runtime.
The number of supplied elements must match the given dimensions.
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def fromFile[T::doc:`Type <../../typeclasses/type>`::doc:`Bits <../../typeclasses/bits>`](dim1: :doc:`Int <../../common/fixpt>`, dim2: :doc:`Int <../../common/fixpt>`, dim3: :doc:`Int <../../common/fixpt>`, dim4: :doc:`Int <../../common/fixpt>`, dim5: :doc:`Int <../../common/fixpt>`)(filename: :doc:`String <../../sw/string>`): :doc:`LUT5 <lut>`[T]
Creates a 5-dimensional read-only lookup table from the given data file.
Note that this file is read during compilation, not runtime.
The number of supplied elements must match the given dimensions.
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Infix methods
| abstract class LUT[T] |
| class LUT1[T] extends LUT[T] | |
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def apply(i: :doc:`Index <../../common/fixpt>`): T
Returns the element at the given address i.
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| class LUT2[T] extends LUT[T] | |
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def apply(r: :doc:`Index <../../common/fixpt>`, c: :doc:`Index <../../common/fixpt>`): T
Returns the element at the given address r, c.
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| class LUT3[T] extends LUT[T] | |
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def apply(r: :doc:`Index <../../common/fixpt>`, c: :doc:`Index <../../common/fixpt>`, p: :doc:`Index <../../common/fixpt>`): T
Returns the element at the given 3-dimensional address.
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| class LUT4[T] extends LUT[T] | |
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def apply(r: :doc:`Index <../../common/fixpt>`, c: :doc:`Index <../../common/fixpt>`, p: :doc:`Index <../../common/fixpt>`, q: :doc:`Index <../../common/fixpt>`): T
Returns the element at the given 4-dimensional address.
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| class LUT5[T] extends LUT[T] | |
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def apply(r: :doc:`Index <../../common/fixpt>`, c: :doc:`Index <../../common/fixpt>`, p: :doc:`Index <../../common/fixpt>`, q: :doc:`Index <../../common/fixpt>`, m: :doc:`Index <../../common/fixpt>`): T
Returns the element at the given 5-dimensional address.
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