Implement VGA simulation

1 files changed, 37 insertions, 0 deletions

diff --git a/tb/window.hpp b/tb/window.hpp
new file mode 100644
index 0000000..181f3c1
--- /dev/null
+++ b/tb/window.hpp
@@ -0,0 +1,37 @@
+#ifndef TALLER_wINDOW_HPP
+#define TALLER_wINDOW_HPP
+
+#include <cstdint>
+#include <memory>
+
+#include "avalon.hpp"
+
+namespace taller::avalon
+{
+	class window : public slave
+	{
+		public:
+			inline window(slave &downstream, std::uint32_t base)
+			: slave(base, downstream.address_span(), downstream.word_size()),
+			  downstream(downstream)
+			{}
+
+			inline virtual bool read(std::uint32_t addr, std::uint32_t &data) final override
+			{
+				return downstream.read(addr, data);
+			}
+
+			inline virtual bool write
+			(
+				std::uint32_t addr, std::uint32_t data, unsigned byte_enable = 0b1111
+			) final override
+			{
+				return downstream.write(addr, data, byte_enable);
+			}
+
+		private:
+			slave &downstream;
+	};
+}
+
+#endif