From 7972ca5e9998fb6bf91de4b1ffd776b46b45af70 Mon Sep 17 00:00:00 2001
From: Fabian Stemmler <stemmler@in.tum.de>
Date: Sat, 12 Oct 2019 13:17:05 +0200
Subject: [PATCH] toString now returns '-' for BitVectors consisting only of Z

---
 .../src/net/mograsim/logic/core/types/BitVector.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/plugins/net.mograsim.logic.core/src/net/mograsim/logic/core/types/BitVector.java b/plugins/net.mograsim.logic.core/src/net/mograsim/logic/core/types/BitVector.java
index 13466949..ec6d12dc 100644
--- a/plugins/net.mograsim.logic.core/src/net/mograsim/logic/core/types/BitVector.java
+++ b/plugins/net.mograsim.logic.core/src/net/mograsim/logic/core/types/BitVector.java
@@ -111,6 +111,16 @@ public final class BitVector implements StrictLogicType<BitVector>, Iterable<Bit
 		return true;
 	}
 
+	public boolean isHighImpedance()
+	{
+		for (int i = 0; i < bits.length; i++)
+		{
+			if (!bits[i].equals(Bit.Z))
+				return false;
+		}
+		return true;
+	}
+
 	@Override
 	public BitVector join(BitVector t)
 	{
@@ -404,6 +414,8 @@ public final class BitVector implements StrictLogicType<BitVector>, Iterable<Bit
 	@Override
 	public String toString()
 	{
+		if (isHighImpedance())
+			return "-";
 		StringBuilder sb = new StringBuilder(bits.length);
 		for (Bit bit : bits)
 			sb.append(bit);
-- 
2.17.1