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diff --git a/trunk/src/via_vgahw.h b/trunk/src/via_vgahw.h
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+++ b/trunk/src/via_vgahw.h
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+/*
+ * Copyright 2004-2005 The Unichrome Project  [unichrome.sf.net]
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#ifndef _VIA_VGAHW_H_
+#define _VIA_VGAHW_H_
+
+#include "vgaHW.h"
+
+/* not used currently */
+/*
+CARD8 ViaVgahwIn(vgaHWPtr hwp, int address);
+void ViaVgahwOut(vgaHWPtr hwp, int address, CARD8 value);
+
+CARD8 ViaVgahwRead(vgaHWPtr hwp, int indexaddress, CARD8 index, 
+		   int valueaddress);
+*/
+
+void ViaVgahwWrite(vgaHWPtr hwp, int indexaddress, CARD8 index,
+		  int valueaddress, CARD8 value);
+
+void ViaVgahwMask(vgaHWPtr hwp, int indexaddress, CARD8 index,
+			int valueaddress, CARD8 value, CARD8 mask);
+
+void ViaCrtcMask(vgaHWPtr hwp, CARD8 index, CARD8 value, CARD8 mask);
+void ViaSeqMask(vgaHWPtr hwp, CARD8 index, CARD8 value, CARD8 mask);
+void ViaGrMask(vgaHWPtr hwp, CARD8 index, CARD8 value, CARD8 mask);
+
+#ifdef HAVE_DEBUG
+void ViaVgahwPrint(vgaHWPtr hwp);
+#endif /* HAVE_DEBUG */
+
+#endif /* _VIA_VGAHW_H_ */