object decoder extends LazyLogging
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- decoder.scala
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- def apply(input: UInt, truthTable: TruthTable): UInt
try to use EspressoMinimizer to decode
input
bytruthTable
ifespresso
not exist in your PATH environment it will fall back to QMCMinimizer, and print a warning.try to use EspressoMinimizer to decode
input
bytruthTable
ifespresso
not exist in your PATH environment it will fall back to QMCMinimizer, and print a warning.- input
input signal that contains decode table input
- truthTable
TruthTable to decode user input.
- returns
decode table output.
- def apply(minimizer: Minimizer, input: UInt, truthTable: TruthTable): UInt
Use a specific Minimizer to generated decoded signals.
Use a specific Minimizer to generated decoded signals.
- minimizer
specific Minimizer, can be QMCMinimizer or EspressoMinimizer.
- input
input signal that contains decode table input
- truthTable
TruthTable to decode user input.
- returns
decode table output.
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- def bitset(input: UInt, bitSets: Seq[BitSet], errorBit: Boolean = false): UInt
Generate a decoder circuit that matches the input to each bitSet.
Generate a decoder circuit that matches the input to each bitSet.
The resulting circuit functions like the following but is optimized with a logic minifier.
when(input === bitSets(0)) { output := b000001 } .elsewhen (input === bitSets(1)) { output := b000010 } .... .otherwise { if (errorBit) output := b100000 else output := DontCare }
- input
input to the decoder circuit, width should be equal to bitSets.width
- bitSets
set of ports to be matched, all width should be the equal
- errorBit
whether generate an additional decode error bit at MSB of output.
- returns
decoded wire
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- def espresso(input: UInt, truthTable: TruthTable): UInt
Use EspressoMinimizer to generated decoded signals.
Use EspressoMinimizer to generated decoded signals.
- input
input signal that contains decode table input
- truthTable
TruthTable to decode user input.
- returns
decode table output.
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- def qmc(input: UInt, truthTable: TruthTable): UInt
Use QMCMinimizer to generated decoded signals.
Use QMCMinimizer to generated decoded signals.
- input
input signal that contains decode table input
- truthTable
TruthTable to decode user input.
- returns
decode table output.
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