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diff --git a/qemu/roms/openbios/fs/hfs_mdb.h b/qemu/roms/openbios/fs/hfs_mdb.h
new file mode 100644
index 000000000..652525d96
--- /dev/null
+++ b/qemu/roms/openbios/fs/hfs_mdb.h
@@ -0,0 +1,118 @@
+/*
+ *   Creation Date: <2000/09/03 23:04:27 samuel>
+ *   Time-stamp: <2000/09/04 01:23:55 samuel>
+ *
+ *	<hfs_mdb.h>
+ *
+ *	HFS Master Directory Block (MDB)
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation
+ *
+ */
+
+#ifndef _H_HFS_MDB
+#define _H_HFS_MDB
+
+#include "libc/byteorder.h"
+
+typedef unsigned char hfs_char_t;
+typedef unsigned char hfs_ushort_t[2];
+typedef unsigned char hfs_uint_t[4];
+
+static inline unsigned short hfs_get_ushort(hfs_ushort_t addr)
+{
+	return __be16_to_cpu(*((unsigned short *)(addr)));
+}
+
+static inline unsigned int hfs_get_uint(hfs_uint_t addr)
+{
+	return __be32_to_cpu(*((unsigned int *)(addr)));
+}
+
+/*
+ * The HFS Master Directory Block (MDB).
+ *
+ * Also known as the Volume Information Block (VIB), this structure is
+ * the HFS equivalent of a superblock.
+ *
+ * Reference: _Inside Macintosh: Files_ pages 2-59 through 2-62
+ *
+ * modified for HFS Extended
+ */
+
+typedef struct hfs_mdb {
+	hfs_ushort_t	drSigWord;	/* Signature word indicating fs type */
+	hfs_uint_t	drCrDate;	/* fs creation date/time */
+	hfs_uint_t	drLsMod;	/* fs modification date/time */
+	hfs_ushort_t	drAtrb;		/* fs attributes */
+	hfs_ushort_t	drNmFls;	/* number of files in root directory */
+	hfs_ushort_t	drVBMSt;	/* location (in 512-byte blocks)
+					   of the volume bitmap */
+	hfs_ushort_t	drAllocPtr;	/* location (in allocation blocks)
+					   to begin next allocation search */
+	hfs_ushort_t	drNmAlBlks;	/* number of allocation blocks */
+	hfs_uint_t	drAlBlkSiz;	/* bytes in an allocation block */
+	hfs_uint_t	drClpSiz;	/* clumpsize, the number of bytes to
+					   allocate when extending a file */
+	hfs_ushort_t	drAlBlSt;	/* location (in 512-byte blocks)
+					   of the first allocation block */
+	hfs_uint_t	drNxtCNID;	/* CNID to assign to the next
+					   file or directory created */
+	hfs_ushort_t	drFreeBks;	/* number of free allocation blocks */
+	hfs_char_t	drVN[28];	/* the volume label */
+	hfs_uint_t	drVolBkUp;	/* fs backup date/time */
+	hfs_ushort_t	drVSeqNum;	/* backup sequence number */
+	hfs_uint_t	drWrCnt;	/* fs write count */
+	hfs_uint_t	drXTClpSiz;	/* clumpsize for the extents B-tree */
+	hfs_uint_t	drCTClpSiz;	/* clumpsize for the catalog B-tree */
+	hfs_ushort_t	drNmRtDirs;	/* number of directories in
+					   the root directory */
+	hfs_uint_t	drFilCnt;	/* number of files in the fs */
+	hfs_uint_t	drDirCnt;	/* number of directories in the fs */
+	hfs_char_t	drFndrInfo[32];	/* data used by the Finder */
+	hfs_ushort_t	drEmbedSigWord;	/* embedded volume signature */
+	hfs_uint_t	drEmbedExtent;  /* starting block number (xdrStABN)
+					   and number of allocation blocks
+					   (xdrNumABlks) occupied by embedded
+					   volume */
+	hfs_uint_t	drXTFlSize;	/* bytes in the extents B-tree */
+	hfs_char_t	drXTExtRec[12];	/* extents B-tree's first 3 extents */
+	hfs_uint_t	drCTFlSize;	/* bytes in the catalog B-tree */
+	hfs_char_t	drCTExtRec[12];	/* catalog B-tree's first 3 extents */
+} hfs_mdb_t;
+
+#define HFS_PLUS_SIGNATURE	0x482b		/* 'H+' */
+#define HFS_SIGNATURE		0x4244		/* HFS / embedded HFS+ */
+
+
+typedef struct hfs_plus_mdb
+{
+	unsigned short	signature;
+	unsigned short	version;
+	unsigned int	attributes;
+	unsigned int	lastMountedVersion;
+	unsigned int	reserved;
+
+	unsigned int	createDate;
+	unsigned int	modifyDate;
+	unsigned int	backupDate;
+	unsigned int	checkedDate;
+
+	unsigned int	fileCount;
+	unsigned int	folderCount;
+
+	unsigned int	blockSize;
+	unsigned int	totalBlocks;
+	unsigned int	freeBlocks;
+
+	unsigned int	nextAllocation;
+	unsigned int	rsrcClumpSize;
+	unsigned int	dataClumpSize;
+
+	/* ... there are more fields here ... */
+} hfs_plus_mdb_t;
+
+
+#endif   /* _H_HFS_MDB */