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Diffstat (limited to 'src/main/scala/firrtl/Utils.scala')
| -rw-r--r-- | src/main/scala/firrtl/Utils.scala | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/main/scala/firrtl/Utils.scala b/src/main/scala/firrtl/Utils.scala index 3d0f19b8..a58b6997 100644 --- a/src/main/scala/firrtl/Utils.scala +++ b/src/main/scala/firrtl/Utils.scala @@ -51,7 +51,18 @@ object getWidth { def apply(e: Expression): Width = apply(e.tpe) } +/** + * Helper object for computing the width of a firrtl type. + */ object bitWidth { + + /** + * Compute the width of a firrtl type. + * For example, a Vec of 4 UInts of width 8 should have a width of 32. + * + * @param dt firrtl type + * @return Width of the given type + */ def apply(dt: Type): BigInt = widthOf(dt) private def widthOf(dt: Type): BigInt = dt match { case t: VectorType => t.size * bitWidth(t.tpe) |