Memory: Implement MMIO

src/core/mmio.h

@@ -0,0 +1,34 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_types.h"
+
+namespace Memory {
+
+/**
+ * Represents a device with memory mapped IO.
+ * A device may be mapped to multiple regions of memory.
+ */
+class MMIORegion {
+public:
+    virtual ~MMIORegion() = default;
+
+    virtual u8 Read8(VAddr addr) = 0;
+    virtual u16 Read16(VAddr addr) = 0;
+    virtual u32 Read32(VAddr addr) = 0;
+    virtual u64 Read64(VAddr addr) = 0;
+
+    virtual void Write8(VAddr addr, u8 data) = 0;
+    virtual void Write16(VAddr addr, u16 data) = 0;
+    virtual void Write32(VAddr addr, u32 data) = 0;
+    virtual void Write64(VAddr addr, u64 data) = 0;
+};
+
+using MMIORegionPointer = std::shared_ptr<MMIORegion>;
+
+};