diff --git a/Makefile b/Makefile
index 6de4abb..a9c456f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,7 @@
 
 
 SOURCES = main.aii volume.aii get_file_info.aii \
+	open.aii \
 	id_disk.aii stubs.aii tables.aii device.aii
 
 OBJECTS=$(SOURCES:.aii=.o)
diff --git a/open.aii b/open.aii
new file mode 100644
index 0000000..9a1593d
--- /dev/null
+++ b/open.aii
@@ -0,0 +1,27 @@
+
+
+	include 'gsos.equ'
+	include 'minix.equ'
+	include 'fst.equ'
+
+	include 'fst.macros'
+
+	include 'M16.Debug'
+
+	include 'records.equ'
+
+
+open	procname export
+
+	; find the inode...
+
+	; sanity check the parameters.
+
+
+	lda #file_not_found
+	sec
+	rtl
+
+	endp
+
+	end
\ No newline at end of file
diff --git a/stubs.aii b/stubs.aii
index 1fb0ad4..8978935 100644
--- a/stubs.aii
+++ b/stubs.aii
@@ -1,45 +1,45 @@
 	include 'gsos.equ'
 stubs	proc
 
-	export judge_name
+	export change_path
+	export close
 	export create
 	export destroy
-	export change_path
-	export set_file_info
-	export open
-	export read
-	export write
-	export flush
-	export close
-	export get_mark
-	export set_mark
-	export get_eof
-	export set_eof
-	export get_dir_entry
-	export get_dev_num
-	export format
 	export erase_disk
+	export flush
+	export format
+	export get_dev_num
+	export get_dir_entry
+	export get_eof
+	export get_mark
+	export judge_name
+	export read
+	export set_eof
+	export set_file_info
+	export set_mark
+	export write
 
 
-judge_name
+change_path
+close
 create
 destroy
-change_path
-set_file_info
+erase_disk
+flush
+format
+get_dev_num
+get_dir_entry
+get_eof
 get_file_info
+get_mark
+judge_name
 open
 read
-write
-flush
-close
-get_mark
-set_mark
-get_eof
 set_eof
-get_dir_entry
-get_dev_num
-format
-erase_disk
+set_file_info
+set_mark
+write
+volume
 
 
 	lda #invalid_fst_op