From 3d86cc1a150c1ae5eb8e1c88901e92a41bf3a314 Mon Sep 17 00:00:00 2001
From: Stephen Williams <steve@icarus.com>
Date: Sat, 13 Sep 2008 14:51:42 -0700
Subject: [PATCH] Reduce the size of Link class objects.

Put the enumerated members of the Link class into bit fields to keep
the size down to a minimum.
---
 netlist.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/netlist.h b/netlist.h
index 4777cf700..931b9fe74 100644
--- a/netlist.h
+++ b/netlist.h
@@ -262,9 +262,10 @@ class Link {
       NetPins *node_;
       unsigned pin_;
 
-      DIR dir_;
-      strength_t drive0_, drive1_;
-      verinum::V init_;
+      DIR dir_           : 2;
+      strength_t drive0_ : 3;
+      strength_t drive1_ : 3;
+      verinum::V init_   : 2;
 
     private:
       Link *next_;