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open import Pervasives_extra
open import Sail_instr_kinds
open import Sail_values
open import Sail_operators_mwords
open import Prompt_monad
open import State

let undefined_int () = (0:ii)
val undefined_bitvector : forall 'a. Size 'a => integer -> mword 'a
let undefined_bitvector len = duplicate B0 len

val uint : forall 'a. Size 'a => mword 'a -> integer
let uint = unsigned

val slice : forall 'a 'b. Size 'a, Size 'b => mword 'a -> integer -> integer -> mword 'b
let slice v lo len =
  subrange_vec_dec v (lo + len - 1) lo