(** Preservation of loads *)

(* Specifications: *)
Theorem load_inject:
forall f m1 m2 chunk b1 ofs b2 delta v1,
inject f m1 m2 ->
load chunk m1 b1 ofs = Some v1 ->
f b1 = Some (b2, delta) ->
exists v2, load chunk m2 b2 (ofs + delta) = Some v2 /\ Val.inject f v1 v2.
Theorem loadv_inject:
forall f m1 m2 chunk a1 a2 v1,
inject f m1 m2 ->
loadv chunk m1 a1 = Some v1 ->
Val.inject f a1 a2 ->
exists v2, loadv chunk m2 a2 = Some v2 /\ Val.inject f v1 v2.
Theorem loadbytes_inject:
forall f m1 m2 b1 ofs len b2 delta bytes1,
inject f m1 m2 ->
loadbytes m1 b1 ofs len = Some bytes1 ->
f b1 = Some (b2, delta) ->
exists bytes2, loadbytes m2 b2 (ofs + delta) len = Some bytes2
/\ list_forall2 (memval_inject f) bytes1 bytes2.