diff --git a/roms/font_test.py b/roms/font_test.py
new file mode 100755
index 0000000..3d1a549
--- /dev/null
+++ b/roms/font_test.py
@@ -0,0 +1,88 @@
+#!/usr/bin/python3
+import sys
+import gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk, Gdk
+import math
+
+font_table_start = 0x2569
+first_char = 0x2627
+
+f = open("ROM.bin","rb")
+data = f.read()
+
+from gi.repository import Gtk
+import cairo
+import math
+
+char_off = 0
+
+# ! :  01 08 21 02 01 00 21 00
+# " :  01 28 21 26 01 68 21 66
+def get_char(ft,off):
+    achar = chr(off+0x20)
+    o1 = ft + (off*2)
+    o2 = (data[o1+1]*256) + data[o1]
+    o3 = o2
+    while data[o3] != 0xff:
+        o3 += 1
+    #print("Looking up '{}' at {:x}; len {}".format(achar,o2,o3-o2))
+    print("{} :  {}".format(achar, " ".join(map(hex,data[o2:o3]))))
+    return data[o2:o3]    
+
+def bytecoords(b):
+    rx, ry = math.floor(b/16), b%16 
+    ry = 15 - ry  # inverted y axis
+    return ( 50 + rx*16, 50 + ry*16 )
+
+def OnDraw(w, cr):
+    global char_off
+    cr.set_source_rgb(0, 0, 0)
+    np = True
+    cr.set_line_width(5)
+    cr.set_line_cap(cairo.LINE_CAP_ROUND)
+    data = list(get_char(font_table_start, char_off))
+    pos = (0,0)
+    while data:
+        c = data.pop(0)
+        if c == 0x01:
+            # move
+            (x,y) = bytecoords( data.pop(0) )
+            cr.move_to(x,y)
+        elif c == 0x21:
+            # draw to
+            (x,y) = bytecoords( data.pop(0) )
+            cr.line_to(x,y)
+    cr.stroke()
+
+def OnKey(w, event):
+    global char_off
+    n = Gdk.keyval_name(event.keyval)
+    if n == 'Right':
+        char_off += 1
+        #get_char(font_table_start, char_off)
+        #coords.append((x,y))
+        w.queue_draw()
+    elif n == 'Left':
+        char_off -= 1
+        #get_char(font_table_start, char_off)
+        w.queue_draw()
+    elif n == 'q':
+        print("QUIT")
+        Gtk.main_quit()
+
+w = Gtk.Window()
+w.set_default_size(640, 480)
+a = Gtk.DrawingArea()
+w.add(a)
+
+w.connect('destroy', Gtk.main_quit)
+a.connect('draw', OnDraw)
+w.connect('key_press_event', OnKey)
+
+w.show_all()
+
+Gtk.main()
+
+
+