diff --git a/tools/ana.c b/tools/ana.c
new file mode 100644
index 0000000..7fe56f9
--- /dev/null
+++ b/tools/ana.c
@@ -0,0 +1,153 @@
+#include <stdio.h>
+
+unsigned line = 0, frame = 0;
+
+
+void
+byte (FILE * f, unsigned c)
+{
+  static int len;
+  static int plen;
+  static int state;
+  static unsigned last_frame;
+
+  unsigned diff;
+
+  diff = frame - last_frame;
+  last_frame = frame;
+
+
+  if (diff > 1)
+    printf ("/* GAP ~%d frames */\n", diff);
+
+  if (state == 0)
+    {
+      if (c == 0x55)
+        return;
+      if (c == 0xaa)
+        state++;
+      else
+        printf ("ERR %02x ERR\n", c);
+    }
+  if (state == 1)
+    {
+      if (c == 0xaa)
+        return;
+      state++;
+    }
+
+  if (state == 2)
+    {
+      plen = c;
+      len = 1;
+      state++;
+      printf ("0x%02x, ", c);
+      putc (c, f);
+      return;
+    }
+
+  if (state == 3)
+    {
+      printf ("0x%02x, ", c);
+      putc (c, f);
+      len++;
+
+      if (len == plen)
+        {
+          if (plen & 1)
+            {
+              state = 4;
+              printf ("/* 0x00, */\n");
+            }
+          else
+            {
+              state = 2;
+              printf ("\n");
+            }
+        }
+      else
+        {
+          if ((len % 16) == 15)
+            {
+              printf ("\n/**/ ");
+            }
+        }
+
+      return;
+    }
+
+  if (state == 4)
+    {
+      if (c)
+        printf ("ERR %02x ERR\n", c);
+      state = 2;
+    }
+
+
+
+}
+
+int
+main (int argc, char *argv)
+{
+  char buf[1024];
+  unsigned i, j, c, b;
+
+  FILE *f = fopen ("timex.dat", "r");
+  FILE *fo = fopen ("foo.bin", "w");
+
+  fwrite ("Timex", 5, 1, fo);
+
+  while (fgets (buf, sizeof (buf), f))
+    {
+
+      while (line > 480)
+        {
+          line -= 480;
+          frame++;
+        }
+
+      line++;
+
+      if (strncmp (buf, "255\n", 4))
+        continue;
+
+      c = 0;
+
+      fgets (buf, sizeof (buf), f);
+      fgets (buf, sizeof (buf), f);
+      fgets (buf, sizeof (buf), f);
+      fgets (buf, sizeof (buf), f);
+
+      line += 4;
+
+      for (i = 0; i < 8; ++i)
+        {
+
+          for (j = 0; j < 7; ++j)
+            fgets (buf, sizeof (buf), f);
+          line += 7;
+
+          b = 0;
+          for (j = 0; j < 8; ++j)
+            {
+              fgets (buf, sizeof (buf), f);
+              line++;
+              b = b || (!strncmp (buf, "255\n", 4));
+            }
+          b = !b;
+
+//printf("%d",b);
+
+          c |= b << i;
+        }
+
+      byte (fo, c);
+
+
+
+    }
+  fclose (fo);
+
+
+}