(* Extract bits.
- * $Id: 05_bits.ml,v 1.1 2008-03-31 22:52:17 rjones Exp $
+ * $Id: 05_bits.ml,v 1.2 2008-04-01 08:56:43 rjones Exp $
*)
-open Printf
-
let bits = Bitmatch.make_bitstring 24 '\x5a' (* makes the string 0x5a5a5a *)
let () =
b8 : 1; b9 : 1; b10 : 1; b11 : 1; b12 : 1; b13 : 1; b14 : 1; b15 : 1;
b16 : 1; b17 : 1; b18 : 1; b19 : 1; b20 : 1; b21 : 1; b22 : 1; b23 : 1;
rest : -1 : bitstring ->
- assert (not b0 && b1 && not b2 && b3 && b4 && not b5 && b6 && not b7);
- assert (not b8 && b9 && not b10 && b11 && b12 && not b13 && b14 && not b15);
- assert (not b16 && b17 && not b18 && b19 && b20 && not b21 && b22 && not b23);
+ assert (not b0 && b1 && not b2 && b3 && (* 0x5 *)
+ b4 && not b5 && b6 && not b7); (* 0xA *)
+ assert (not b8 && b9 && not b10 && b11 && (* 0x5 *)
+ b12 && not b13 && b14 && not b15); (* 0xA *)
+ assert (not b16 && b17 && not b18 && b19 && (* 0x5 *)
+ b20 && not b21 && b22 && not b23); (* 0xA *)
let _, off, len = rest in
- assert (off = 24 && len = 0)
+ assert (off = 24 && len = 0) (* no further data *)
| _ ->
failwith "error: did not match\n"