Add documentation on some non-intuitive parts

1 files changed, 2 insertions, 0 deletions

diff --git a/src/main/scala/Chisel/Aggregate.scala b/src/main/scala/Chisel/Aggregate.scala
index de77a7e7..07362b9b 100644
--- a/src/main/scala/Chisel/Aggregate.scala
+++ b/src/main/scala/Chisel/Aggregate.scala
@@ -86,6 +86,8 @@ object Vec {
   * collection transformation functions found in software array implementations.
   *
   * @tparam T type of elements
+  * @note when multiple conflicting assignments are performed on a Vec element,
+  * the last one takes effect (unlike Mem, where the result is undefined)
   */
 sealed class Vec[T <: Data] private (gen: => T, val length: Int)
     extends Aggregate(gen.dir) with VecLike[T] {