From 2a56c6540e914611ac12647e157aec4c5c595758 Mon Sep 17 00:00:00 2001
From: Boyang Han
Date: Fri, 19 Mar 2021 01:28:56 +0800
Subject: Add toString method to BitPat (#1819)

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>---
 src/main/scala/chisel3/util/BitPat.scala | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/main')

diff --git a/src/main/scala/chisel3/util/BitPat.scala b/src/main/scala/chisel3/util/BitPat.scala
index 12a421a0..5a40d312 100644
--- a/src/main/scala/chisel3/util/BitPat.scala
+++ b/src/main/scala/chisel3/util/BitPat.scala
@@ -119,4 +119,11 @@ sealed class BitPat(val value: BigInt, val mask: BigInt, width: Int) extends Sou
     !(this === that)
   }
 
+  override def toString = {
+    "BitPat(" +
+      (0 until width).map(i =>
+        if (((mask >> i) & 1) == 1) if (((value >> i) & 1) == 1)  "1" else "0" else "?"
+      ).reverse.reduce(_ + _) +
+    ")"
+  }
 }
-- 
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