Implement interval timer simulation

1 files changed, 31 insertions, 0 deletions

diff --git a/tb/interval_timer.hpp b/tb/interval_timer.hpp
new file mode 100644
index 0000000..7cce265
--- /dev/null
+++ b/tb/interval_timer.hpp
@@ -0,0 +1,31 @@
+#ifndef TALLER_INTERVAL_TIMER_HPP
+#define TALLER_INTERVAL_TIMER_HPP
+
+#include <cstdint>
+
+#include "avalon.hpp"
+
+namespace taller::avalon
+{
+	class interval_timer : public slave
+	{
+		public:
+			interval_timer(std::uint32_t base) noexcept;
+
+			void tick() noexcept;
+
+			virtual bool read(std::uint32_t addr, std::uint32_t &data) noexcept final override;
+			virtual bool write(std::uint32_t addr, std::uint32_t data, unsigned byte_enable) noexcept final override;
+
+		private:
+			std::uint32_t count;
+			std::uint32_t period;
+			std::uint32_t snap;
+			bool          status_to = false;
+			bool          status_run = false;
+			bool          control_ito = false;
+			bool          control_cont = false;
+	};
+}
+
+#endif