diff options
Diffstat (limited to 'src/main')
| -rw-r--r-- | src/main/scala/chisel3/util/Mux.scala | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/main/scala/chisel3/util/Mux.scala b/src/main/scala/chisel3/util/Mux.scala index 245de67e..1fa7518e 100644 --- a/src/main/scala/chisel3/util/Mux.scala +++ b/src/main/scala/chisel3/util/Mux.scala @@ -11,6 +11,15 @@ import chisel3.core.SeqUtils /** Builds a Mux tree out of the input signal vector using a one hot encoded * select signal. Returns the output of the Mux tree. * + * @example {{{ + * val hotValue = chisel3.util.Mux1H(Seq( + * io.selector(0) -> 2.U, + * io.selector(1) -> 4.U, + * io.selector(2) -> 8.U, + * io.selector(4) -> 11.U, + * )) + * }}} + * * @note results undefined if multiple select signals are simultaneously high */ object Mux1H { @@ -25,6 +34,14 @@ object Mux1H { /** Builds a Mux tree under the assumption that multiple select signals * can be enabled. Priority is given to the first select signal. * + * @example {{{ + * val hotValue = chisel3.util.PriorityMux(Seq( + * io.selector(0) -> 2.U, + * io.selector(1) -> 4.U, + * io.selector(2) -> 8.U, + * io.selector(4) -> 11.U, + * )) + * }}} * Returns the output of the Mux tree. */ object PriorityMux { @@ -33,7 +50,13 @@ object PriorityMux { def apply[T <: Data](sel: Bits, in: Seq[T]): T = apply((0 until in.size).map(sel(_)), in) } -/** Creates a cascade of n Muxs to search for a key value. */ +/** Creates a cascade of n Muxs to search for a key value. + * + * @example {{{ + * MuxLookup(idx, default, + * Array(0.U -> a, 1.U -> b)) + * }}} + */ object MuxLookup { /** @param key a key to search for * @param default a default value if nothing is found @@ -50,6 +73,10 @@ object MuxLookup { /** Given an association of values to enable signals, returns the first value with an associated * high enable signal. + * + * @example {{{ + * MuxCase(default, Array(c1 -> a, c2 -> b)) + * }}} */ object MuxCase { /** @param default the default value if none are enabled |
