add something, at least, in place of the deleted memset code

desmume/src/utils/fsnitro.cpp

@@ -149,6 +149,11 @@ bool FS_NITRO::loadFileTables()
 	if (numOverlay7 && !ovr7) return false;
 	if (numOverlay9 && !ovr9) return false;
 
+	delete[] fat;
+	delete[] fnt;
+	fat = new FAT_NITRO[numFiles];
+	fnt = new FNT_NITRO[numDirs];
+
 	// ========= FAT (File Allocation Table)
 	u32 *_FAT = (u32*)(rom + FATOff);
 	for (u32 i = 0; i < numFiles; i++)

desmume/src/utils/fsnitro.h

@@ -37,6 +37,17 @@ enum FNT_TYPES
 #include "PACKED.h"
 struct FAT_NITRO
 {
+	FAT_NITRO()
+		: start(0)
+		, end(0)
+		, size(0)
+		, parentOffset(0)
+		, isOverlay(false)
+		, file(false)
+		, sizeFile(0)
+		, parentID(0)
+	{
+	}
 	u32 start;
 	u32 end;
 	u32 size;
@@ -57,6 +68,12 @@ struct FNT_MAIN
 
 struct FNT_NITRO
 {
+	FNT_NITRO()
+		: offset(0)
+		, firstID(0)
+		, parentID(0)
+	{
+	}
 	u32 offset;
 	u16 firstID;
 	u16 parentID;