Add SHRN instruction, and fix ADDV

Ryujinx/OsHle/Objects/Time/ISystemClock.cs

@@ -12,16 +12,28 @@ namespace Ryujinx.OsHle.Objects.Time
 
         private static DateTime Epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
 
-        public ISystemClock()
+        private SystemClockType ClockType;
+
+        public ISystemClock(SystemClockType ClockType)
         {
             m_Commands = new Dictionary<int, ServiceProcessRequest>()
             {
                 { 0, GetCurrentTime }
             };
+
+            this.ClockType = ClockType;
         }
 
         public long GetCurrentTime(ServiceCtx Context)
         {
+            DateTime CurrentTime = DateTime.Now;
+
+            if (ClockType == SystemClockType.Standard ||
+                ClockType == SystemClockType.Network)
+            {
+                CurrentTime = CurrentTime.ToUniversalTime();
+            }
+
             Context.ResponseData.Write((long)(DateTime.Now - Epoch).TotalSeconds);
 
             return 0;

Ryujinx/OsHle/Objects/Time/SystemClockType.cs

@@ -0,0 +1,9 @@
+namespace Ryujinx.OsHle.Objects.Time
+{
+    enum SystemClockType
+    {
+        Standard,
+        Network,
+        Local
+    }
+}