From 1f9703f1bc89048fbe61a2386e064e34bcaedd24 Mon Sep 17 00:00:00 2001
From: Martin Whitaker <icarus@martin-whitaker.me.uk>
Date: Sat, 10 Jan 2015 18:03:31 +0000
Subject: [PATCH] Fix for br968.

vthr_vec_get_value() assumed the source vector was unsigned.
---
 vvp/vpi_vthr_vector.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/vvp/vpi_vthr_vector.cc b/vvp/vpi_vthr_vector.cc
index 71db5692c..f31ab5361 100644
--- a/vvp/vpi_vthr_vector.cc
+++ b/vvp/vpi_vthr_vector.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001-2013 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2001-2015 Stephen Williams (steve@icarus.com)
  * Copyright (c) 2001 Stephan Boettcher <stephan@nevis.columbia.edu>
  *
  *    This source code is free software; you can redistribute it
@@ -297,6 +297,9 @@ static void vthr_vec_get_value(vpiHandle ref, s_vpi_value*vp)
 			break;
 		  }
 	    }
+	    long sign_bit = (1 << wid) >> 1;
+	    if (rfp->signed_flag && (ival & sign_bit))
+		  ival |= (~0) << wid;
 	    vp->value.integer = ival;
 	    }
 	    break;