Begin implementing VDP

1 files changed, 23 insertions, 0 deletions

diff --git a/vdp.hpp b/vdp.hpp
new file mode 100644
index 0000000..0e911c9
--- /dev/null
+++ b/vdp.hpp
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: Unlicense
+ */
+
+#pragma once
+
+#include "bus.hpp"
+
+#include <cstdio>
+
+class VDP {
+    public:
+        VDP(const uint32_t base_address_a = VDP_START): base_address(base_address_a) {}
+        uint32_t Read(uint32_t offset, enum bitness);
+        void Write(uint32_t offset, enum bitness, uint32_t value);
+
+        const uint32_t base_address;
+
+    private:
+        void writeControl(uint16_t value);
+
+        static constexpr size_t kRegistersCount = 0x18;
+        uint8_t _reg[kRegistersCount]{};
+};