diff --git a/tools/dumpaout.py b/tools/dumpaout.py
new file mode 100755
index 0000000..1ea5568
--- /dev/null
+++ b/tools/dumpaout.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+
+from struct import pack, unpack
+
+class AOut(object) :
+	def __init__(self, bin) :
+		self.mag, self.txt, self.sym, self.rel, self.dat, self.z = \
+			unpack("<HHHHHH", bin[:12])
+		assert self.z == 0
+		assert self.txt % 2 == 0 and self.sym % 2 == 0 and self.rel % 2 == 0
+		self.txtd = bin[:self.txt]
+		self.symd = bin[self.txt : self.txt+self.sym]
+		self.reld = bin[self.txt+self.sym : self.txt+self.sym+self.rel]
+		assert len(bin) == self.txt+self.sym+self.rel
+	def __str__(self) :
+		return '[a.out mag=%x txt=%x sym=%x rel=%x dat=%x z=%x]' % \
+			(self.mag, self.txt, self.sym, self.rel, self.dat, self.z)
+
+def dump(fn, addr) :
+	f = file(fn, 'rb')
+	a = AOut(f.read())
+	f.close()
+	assert a.rel == 0 
+
+	vals = unpack("<%dH" % (a.txt/2), a.txtd)
+	for n,v in enumerate(vals) :
+		print 'dep cpu %o %06o' % (addr+n*2, v)
+
+# XXX just an example.
+dump('/tmp/s2/bin/ls', 02000)
+