From ec10a4d54902329bd07987f1606d7d0eeb61c591 Mon Sep 17 00:00:00 2001
From: edmccard <edmccard@hotmail.com>
Date: Sun, 25 Mar 2012 04:01:08 -0400
Subject: [PATCH] HLT halts until interrupt

---
 src/d6502/nmosundoc.d | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/d6502/nmosundoc.d b/src/d6502/nmosundoc.d
index db7a245..3284cb9 100644
--- a/src/d6502/nmosundoc.d
+++ b/src/d6502/nmosundoc.d
@@ -32,7 +32,15 @@ class NmosUndoc(bool strict, bool cumulative) : NmosBase!(strict, cumulative)
         super();
     }
 
-    final void addrHalt() {}
+    final void addrHalt()
+    {
+        programCounter--;
+        /* TODO: check with the timer how many ticks until it would
+         * stop me? */
+        static if (cumulative) tick(totalCycles);
+        else tick();
+    }
+
     final void addrImplied()
     {
         peek(programCounter);