Initial firmware commit.

firmware/application/dirty_registers.hpp

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * 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, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __DIRTY_REGISTERS_H__
+#define __DIRTY_REGISTERS_H__
+
+#include <cstddef>
+#include <bitset>
+
+#include "utility.hpp"
+
+template<typename RegisterType, size_t RegisterCount>
+class DirtyRegisters {
+public:
+	using mask_t = std::bitset<RegisterCount>;
+
+	/* TODO: I feel like I might regret implementing this cast operator... */
+	operator bool() const {
+		return mask.any();
+	}
+
+	void set() {
+		mask.set();
+	}
+
+	void clear() {
+		mask.reset();
+	}
+
+	void clear(const size_t reg_num) {
+		mask.reset(reg_num);
+	}
+
+	typename mask_t::reference operator[](const size_t reg_num) {
+		return mask[reg_num];
+	}
+
+	typename mask_t::reference operator[](const RegisterType reg) {
+		return mask[toUType(reg)];
+	}
+
+private:
+	mask_t mask;
+};
+
+#endif/*__DIRTY_REGISTERS_H__*/