diff options
| author | Richard Lin | 2016-06-28 10:38:25 -0700 |
|---|---|---|
| committer | GitHub | 2016-06-28 10:38:25 -0700 |
| commit | bc3813ebd752646a92987c74136bb2adb476b687 (patch) | |
| tree | cc6e0e257f57d87e828a811e8c0c85d5780bb141 /src/main/scala/chisel/util/Reg.scala | |
| parent | 3eb51f8484ad21d8a39da1ab7b036f1bb3bbe102 (diff) | |
| parent | a367073eaad494e86883b319d3b06bd6e8f05a00 (diff) | |
Merge pull request #224 from ucb-bar/renamechisel3
renamechisel3 - "chisel" -> "chisel3"
Diffstat (limited to 'src/main/scala/chisel/util/Reg.scala')
| -rw-r--r-- | src/main/scala/chisel/util/Reg.scala | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/src/main/scala/chisel/util/Reg.scala b/src/main/scala/chisel/util/Reg.scala deleted file mode 100644 index 1b40646d..00000000 --- a/src/main/scala/chisel/util/Reg.scala +++ /dev/null @@ -1,57 +0,0 @@ -// See LICENSE for license details. - -/** Variations and helpers for registers. - */ - -package chisel.util - -import chisel._ - -object RegNext { - - def apply[T <: Data](next: T): T = Reg[T](null.asInstanceOf[T], next, null.asInstanceOf[T]) - - def apply[T <: Data](next: T, init: T): T = Reg[T](null.asInstanceOf[T], next, init) - -} - -object RegInit { - - def apply[T <: Data](init: T): T = Reg[T](null.asInstanceOf[T], null.asInstanceOf[T], init) - -} - -/** A register with an Enable signal */ -object RegEnable -{ - def apply[T <: Data](updateData: T, enable: Bool): T = { - val r = Reg(updateData) - when (enable) { r := updateData } - r - } - def apply[T <: Data](updateData: T, resetData: T, enable: Bool): T = { - val r = RegInit(resetData) - when (enable) { r := updateData } - r - } -} - -/** Returns the n-cycle delayed version of the input signal. - */ -object ShiftRegister -{ - /** @param in input to delay - * @param n number of cycles to delay - * @param en enable the shift */ - def apply[T <: Data](in: T, n: Int, en: Bool = Bool(true)): T = - { - // The order of tests reflects the expected use cases. - if (n == 1) { - RegEnable(in, en) - } else if (n != 0) { - RegNext(apply(in, n-1, en)) - } else { - in - } - } -} |
