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diff --git a/sys/fio/note.x b/sys/fio/note.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<config.h>
+include	<syserr.h>
+include	<fio.h>
+
+# NOTE -- Note offset in file for a subsequent SEEK.  If text file, the offset
+# of the current line is returned; it is only permissible to seek to the
+# beginning of a line on a text file.  If binary file, the offset returned is
+# the offset at which the next BUFFERED i/o transfer will occur.  If file is
+# being accessed unbuffered random, the concept of file position is meaningless.
+
+long procedure note (fd)
+
+int	fd
+errchk	filerr
+include	<fio.com>
+
+begin
+	fp = fiodes[fd]
+	if (fd <= 0 || fp == NULL)
+	    call filerr (FNAME(fp), SYS_FILENOTOPEN)
+
+	if (FTYPE(fp) == TEXT_FILE) {
+	    call zcall2 (ZNOTTX(fp), FCHAN(fp), boffset[fd])
+	    return (boffset[fd])
+	} else
+	    return (LNOTE(fd))
+end