Initial commit

arm9/source/SecureSysCallsUnusedSpaceLocator.h

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+#pragma once
+#include "ndsHeader.h"
+
+class PatchHeap;
+
+/// @brief Class for finding the unused space between the system calls in the arm9 secure area.
+class SecureSysCallsUnusedSpaceLocator
+{
+public:
+    /// @brief Searches for the unused space between the system calls in the arm9 secure area of the rom
+    ///        with the given \p romHeader and adds the unused space to the given \p patchHeap.
+    /// @param romHeader The rom header.
+    /// @param patchHeap The patch heap to add the unused space to.
+    void FindUnusedSpace(const nds_header_ntr_t* romHeader, PatchHeap& patchHeap) const;
+
+private:
+    const u16* FindPattern(const u16* data, u32 length, const u16* pattern, u32 patternLength) const;
+};