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diff --git a/sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/mos6510.h b/sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/mos6510.h
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+/***************************************************************************
+ mos6510.h - description
+ -------------------
+ begin : Thu May 11 2000
+ copyright : (C) 2000 by Simon White
+ email : s_a_white@email.com
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ ***************************************************************************/
+/***************************************************************************
+ * $Log: mos6510.h,v $
+ * Revision 1.5 2001/07/14 16:47:21 s_a_white
+ * Sync with sidbuilder class project.
+ *
+ * Revision 1.4 2001/07/14 13:04:34 s_a_white
+ * Accumulator is now unsigned, which improves code readability.
+ *
+ * Revision 1.3 2000/12/11 19:03:16 s_a_white
+ * AC99 Update.
+ *
+ ***************************************************************************/
+
+#ifndef _mos6510_h_
+#define _mos6510_h_
+
+#include "config.h"
+#include "component.h"
+#include "sidenv.h"
+#include "event.h"
+
+#undef MOS6510_VERSION
+#undef MOS6510_DATE
+#undef MOS6510_AUTHOR
+#undef MOS6510_EMAIL
+#define MOS6510_VERSION "1.08"
+#define MOS6510_DATE "23th May 2000"
+#define MOS6510_AUTHOR "Simon White"
+#define MOS6510_EMAIL "s_a_white@email.com"
+#define MOS6510_INTERRUPT_DELAY 2
+
+#include "opcodes.h"
+#include "conf6510.h"
+
+// Status Register flag definistions
+#define SR_NEGATIVE 7
+#define SR_OVERFLOW 6
+#define SR_NOTUSED 5
+#define SR_BREAK 4
+#define SR_DECIMAL 3
+#define SR_INTERRUPT 2
+#define SR_ZERO 1
+#define SR_CARRY 0
+
+#define SP_PAGE 0x01
+
+// Check to see what type of emulation is required
+#ifdef MOS6510_CYCLE_BASED
+# ifdef MOS6510_SIDPLAY
+# include "cycle_based/sid6510c.h"
+# else
+# include "cycle_based/mos6510c.h"
+# endif // MOS6510_SIDPLAY
+#else
+ // Line based emulation code has not been provided
+#endif // MOS6510_CYCLE_BASED
+
+#endif // _mos6510_h_
+