(*========================================================================*)
(* Lem *)
(* *)
(* Dominic Mulligan, University of Cambridge *)
(* Francesco Zappa Nardelli, INRIA Paris-Rocquencourt *)
(* Gabriel Kerneis, University of Cambridge *)
(* Kathy Gray, University of Cambridge *)
(* Peter Boehm, University of Cambridge (while working on Lem) *)
(* Peter Sewell, University of Cambridge *)
(* Scott Owens, University of Kent *)
(* Thomas Tuerk, University of Cambridge *)
(* Brian Campbell, University of Edinburgh *)
(* Shaked Flur, University of Cambridge *)
(* Thomas Bauereiss, University of Cambridge *)
(* Stephen Kell, University of Cambridge *)
(* Thomas Williams *)
(* Lars Hupel *)
(* Basile Clement *)
(* *)
(* The Lem sources are copyright 2010-2018 *)
(* by the authors above and Institut National de Recherche en *)
(* Informatique et en Automatique (INRIA). *)
(* *)
(* All files except ocaml-lib/pmap.{ml,mli} and ocaml-libpset.{ml,mli} *)
(* are distributed under the license below. The former are distributed *)
(* under the LGPLv2, as in the LICENSE file. *)
(* *)
(* *)
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(*========================================================================*)
chapter‹Mappings of Syntax needed by Lem›
theory "Lem"
imports
LemExtraDefs
"HOL-Library.Word"
"Word_Lib.Reversed_Bit_Lists"
begin
type_synonym numeral = nat
subsection ‹Finite Maps›
abbreviation (input) "map_find k m ≡ the (m k)"
abbreviation (input) "map_update k v m ≡ m (k ↦ v)"
abbreviation (input) "map_remove k m ≡ m |` (- {k})"
abbreviation (input) "map_any P m ≡ ∃ (k, v) ∈ map_to_set m. P k v"
abbreviation (input) "map_all P m ≡ ∀ (k, v) ∈ map_to_set m. P k v"
subsection ‹Lists›
abbreviation (input) "list_mem e l ≡ (e ∈ set l)"
abbreviation (input) "list_forall P l ≡ (∀e∈set l. P e)"
abbreviation (input) "list_exists P l ≡ (∃e∈set l. P e)"
abbreviation (input) "list_unzip l ≡ (map fst l, map snd l)"
subsection ‹Sets›
abbreviation (input) "set_filter P (s::'a set) ≡ {x ∈ s. P x}"
abbreviation (input) "set_bigunion S ≡ ∪ S"
abbreviation (input) "set_biginter S ≡ ∩ S"
subsection ‹Natural numbers›
subsection ‹Integers›
subsection ‹Dummy›
consts
bitwise_xor :: "nat → nat → nat"
num_asr :: "nat → nat → nat"
num_lsl :: "nat → nat → nat"
bitwise_or :: "nat → nat → nat"
bitwise_not :: "nat → nat"
bitwise_and :: "nat → nat → nat"
subsection ‹Machine words›
definition word_update :: "'a::len word → nat → nat → 'b::len word → 'a word" where
"word_update v lo hi w =
(let sz = size v in
of_bl (take (sz-hi-1) (to_bl v) @ to_bl w @ drop (sz-lo) (to_bl v)))"
end
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