diff options
| author | Jim Lawson | 2016-10-06 08:57:10 -0700 |
|---|---|---|
| committer | Jim Lawson | 2016-10-06 08:57:10 -0700 |
| commit | 82625071405672eb4a19363d6f73f359ac28a7f5 (patch) | |
| tree | dee5beff0e7333fa86c1cdcdb79c0d111114b8c9 /src/main/scala/Chisel/util/Reg.scala | |
| parent | b7c6e0d1a2098b545938a5a8dfce2b1d9294532f (diff) | |
| parent | 7de30c2b893a3f24d43f2e131557430eb64f6bc8 (diff) | |
Merge branch 'master' into tobits-deprecation
Diffstat (limited to 'src/main/scala/Chisel/util/Reg.scala')
| -rw-r--r-- | src/main/scala/Chisel/util/Reg.scala | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/src/main/scala/Chisel/util/Reg.scala b/src/main/scala/Chisel/util/Reg.scala deleted file mode 100644 index 6584a4bf..00000000 --- a/src/main/scala/Chisel/util/Reg.scala +++ /dev/null @@ -1,55 +0,0 @@ -// See LICENSE for license details. - -/** Variations and helpers for registers. - */ - -package 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 - } - } -} |
