From 558de4a4d2cab0d877ed0cf12e580d183bd75e87 Mon Sep 17 00:00:00 2001
From: ewoudje <ewoud.dierickx@hotmail.be>
Date: Tue, 16 Jan 2018 22:29:57 +0100
Subject: [PATCH] Fixed PIT

I am not sure it is how it should work but it works
---
 source/Cosmos.HAL2/Global.cs |  2 +-
 source/Cosmos.HAL2/PIT.cs    | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/source/Cosmos.HAL2/Global.cs b/source/Cosmos.HAL2/Global.cs
index 6ab841147..9b0dfd95d 100644
--- a/source/Cosmos.HAL2/Global.cs
+++ b/source/Cosmos.HAL2/Global.cs
@@ -9,7 +9,7 @@ namespace Cosmos.HAL
     {
         public static readonly Debugger mDebugger = new Debugger("HAL", "Global");
 
-        //static public PIT PIT = new PIT();
+        static public PIT PIT = new PIT();
         // Must be static init, other static inits rely on it not being null
 
         public static TextScreenBase TextScreen = new TextScreen();
diff --git a/source/Cosmos.HAL2/PIT.cs b/source/Cosmos.HAL2/PIT.cs
index b74f1e102..889f020b6 100644
--- a/source/Cosmos.HAL2/PIT.cs
+++ b/source/Cosmos.HAL2/PIT.cs
@@ -30,19 +30,21 @@ namespace Cosmos.HAL {
                 this.NSRemaining = this.NanosecondsTimeout;
                 this.Recuring = Recuring;
             }
+
             public PITTimer(dOnTrigger HandleOnTrigger, int NanosecondsTimeout, int NanosecondsLeft) {
                 this.HandleTrigger = HandleOnTrigger;
                 this.NanosecondsTimeout = NanosecondsTimeout;
                 this.NSRemaining = NanosecondsLeft;
                 this.Recuring = true;
             }
+
             ~PITTimer() {
                 Dispose();
             }
 
             public void Dispose() {
                 if (ID != -1) {
-                    //Global.PIT.UnregisterTimer(ID);
+                    Global.PIT.UnregisterTimer(ID);
                 }
             }
         }
@@ -154,9 +156,13 @@ namespace Cosmos.HAL {
             RegisterTimer(new PITTimer(SignalWait, (int)(TimeoutMS * 1000000), false));
 
             while (!WaitSignaled) {
-                Core.Global.CPU.Halt();
+                var bytes = new byte[1];
+                IO.Data0.Read8(bytes);
+                if (bytes[0] == 0) HandleInterrupt();
+                //Core.Global.CPU.Halt();
             }
         }
+
         public void WaitNS(int TimeoutNS) {
             WaitSignaled = false;