Section CONSTRUCTORS.
Variable ge: genv.
Variable fn: function.
(** Decomposition of integer literals *)
Inductive wf_decomposition: list (Z * Z) -> Prop :=
| wf_decomp_nil:
wf_decomposition nil
| wf_decomp_cons: forall m n p l,
n = Zzero_ext 16 m -> 0 <= p -> wf_decomposition l ->
wf_decomposition ((n, p) :: l).
Fixpoint recompose_int (accu: Z) (l: list (Z * Z)) : Z :=
match l with
| nil => accu
| (n, p) :: l => recompose_int (Zinsert accu n p 16) l
end.
(** Add immediate *)

Lemma exec_addimm32:
forall rd r1 n k rs m,
r1 <> X16 ->
exists rs',
exec_straight ge fn (addimm32 rd r1 n k) rs m k rs' m
/\ rs'#rd = Val.add rs#r1 (Vint n)
/\ forall r, data_preg r = true -> r <> rd -> rs'#r = rs#r.