diff options
| author | Brian Campbell | 2020-06-10 21:33:09 +0100 |
|---|---|---|
| committer | Brian Campbell | 2020-06-10 21:38:06 +0100 |
| commit | d2b4a7a1d654cf8f315e2471b1470506255f3d68 (patch) | |
| tree | 607a709d4912b80a7eb3966ad88a25d7b7bd159c /lib/coq/Sail2_state.v | |
| parent | 18719e6801e804c4f5302745bb7cfb6dfe3a6c98 (diff) | |
Prepare Coq library for packaging
- rename files to get rid of prefix
- use -Q to get package name right
- add Base.v to make package imports simpler
- add opam file for coq package
Diffstat (limited to 'lib/coq/Sail2_state.v')
| -rw-r--r-- | lib/coq/Sail2_state.v | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/lib/coq/Sail2_state.v b/lib/coq/Sail2_state.v deleted file mode 100644 index 7c751bc7..00000000 --- a/lib/coq/Sail2_state.v +++ /dev/null @@ -1,203 +0,0 @@ -(*Require Import Sail_impl_base*) -Require Import Sail2_values. -Require Import Sail2_prompt_monad. -Require Import Sail2_prompt. -Require Import Sail2_state_monad. -Import ListNotations. - -(*val iterS_aux : forall 'rv 'a 'e. integer -> (integer -> 'a -> monadS 'rv unit 'e) -> list 'a -> monadS 'rv unit 'e*) -Fixpoint iterS_aux {RV A E} i (f : Z -> A -> monadS RV unit E) (xs : list A) := - match xs with - | x :: xs => f i x >>$ iterS_aux (i + 1) f xs - | [] => returnS tt - end. - -(*val iteriS : forall 'rv 'a 'e. (integer -> 'a -> monadS 'rv unit 'e) -> list 'a -> monadS 'rv unit 'e*) -Definition iteriS {RV A E} (f : Z -> A -> monadS RV unit E) (xs : list A) : monadS RV unit E := - iterS_aux 0 f xs. - -(*val iterS : forall 'rv 'a 'e. ('a -> monadS 'rv unit 'e) -> list 'a -> monadS 'rv unit 'e*) -Definition iterS {RV A E} (f : A -> monadS RV unit E) (xs : list A) : monadS RV unit E := - iteriS (fun _ x => f x) xs. - -(*val foreachS : forall 'a 'rv 'vars 'e. - list 'a -> 'vars -> ('a -> 'vars -> monadS 'rv 'vars 'e) -> monadS 'rv 'vars 'e*) -Fixpoint foreachS {A RV Vars E} (xs : list A) (vars : Vars) (body : A -> Vars -> monadS RV Vars E) : monadS RV Vars E := - match xs with - | [] => returnS vars - | x :: xs => - body x vars >>$= fun vars => - foreachS xs vars body -end. - -Fixpoint foreach_ZS_up' {rv e Vars} (from to step off : Z) (n : nat) `{ArithFact (0 <? step)} `{ArithFact (0 <=? off)} (vars : Vars) (body : forall (z : Z) `(ArithFact (from <=? z <=? to)), Vars -> monadS rv Vars e) {struct n} : monadS rv Vars e. -exact ( - match sumbool_of_bool (from + off <=? to) with left LE => - match n with - | O => returnS vars - | S n => body (from + off) _ vars >>$= fun vars => foreach_ZS_up' rv e Vars from to step (off + step) n _ _ vars body - end - | right _ => returnS vars - end). -Defined. - -Fixpoint foreach_ZS_down' {rv e Vars} (from to step off : Z) (n : nat) `{ArithFact (0 <? step)} `{ArithFact (off <=? 0)} (vars : Vars) (body : forall (z : Z) `(ArithFact (to <=? z <=? from)), Vars -> monadS rv Vars e) {struct n} : monadS rv Vars e. -exact ( - match sumbool_of_bool (to <=? from + off) with left LE => - match n with - | O => returnS vars - | S n => body (from + off) _ vars >>$= fun vars => foreach_ZS_down' _ _ _ from to step (off - step) n _ _ vars body - end - | right _ => returnS vars - end). -Defined. - -Definition foreach_ZS_up {rv e Vars} from to step vars body `{ArithFact (0 <? step)} := - foreach_ZS_up' (rv := rv) (e := e) (Vars := Vars) from to step 0 (S (Z.abs_nat (from - to))) vars body. -Definition foreach_ZS_down {rv e Vars} from to step vars body `{ArithFact (0 <? step)} := - foreach_ZS_down' (rv := rv) (e := e) (Vars := Vars) from to step 0 (S (Z.abs_nat (from - to))) vars body. - -(*val genlistS : forall 'a 'rv 'e. (nat -> monadS 'rv 'a 'e) -> nat -> monadS 'rv (list 'a) 'e*) -Definition genlistS {A RV E} (f : nat -> monadS RV A E) n : monadS RV (list A) E := - let indices := List.seq 0 n in - foreachS indices [] (fun n xs => (f n >>$= (fun x => returnS (xs ++ [x])))). - -(*val and_boolS : forall 'rv 'e. monadS 'rv bool 'e -> monadS 'rv bool 'e -> monadS 'rv bool 'e*) -Definition and_boolS {RV E} (l r : monadS RV bool E) : monadS RV bool E := - l >>$= (fun l => if l then r else returnS false). - -(*val or_boolS : forall 'rv 'e. monadS 'rv bool 'e -> monadS 'rv bool 'e -> monadS 'rv bool 'e*) -Definition or_boolS {RV E} (l r : monadS RV bool E) : monadS RV bool E := - l >>$= (fun l => if l then returnS true else r). - -Definition and_boolSP {rv E} {P Q R:bool->Prop} (x : monadS rv {b:bool & ArithFactP (P b)} E) (y : monadS rv {b:bool & ArithFactP (Q b)} E) - `{H:forall l r, ArithFactP ((P l) -> ((l = true -> (Q r)) -> (R (andb l r))))} - : monadS rv {b:bool & ArithFactP (R b)} E := - x >>$= fun '(existT _ x p) => (if x return ArithFactP (P x) -> _ then - fun p => y >>$= fun '(existT _ y q) => returnS (existT _ y (and_bool_full_proof p q H)) - else fun p => returnS (existT _ false (and_bool_left_proof p H))) p. - -Definition or_boolSP {rv E} {P Q R:bool -> Prop} (l : monadS rv {b : bool & ArithFactP (P b)} E) (r : monadS rv {b : bool & ArithFactP (Q b)} E) - `{forall l r, ArithFactP ((P l) -> (((l = false) -> (Q r)) -> (R (orb l r))))} - : monadS rv {b : bool & ArithFactP (R b)} E := - l >>$= fun '(existT _ l p) => - (if l return ArithFactP (P l) -> _ then fun p => returnS (existT _ true (or_bool_left_proof p H)) - else fun p => r >>$= fun '(existT _ r q) => returnS (existT _ r (or_bool_full_proof p q H))) p. - -Definition build_trivial_exS {rv E} {T:Type} (x : monadS rv T E) : monadS rv {x : T & ArithFact true} E := - x >>$= fun x => returnS (existT _ x (Build_ArithFactP _ eq_refl)). - -(*val bool_of_bitU_fail : forall 'rv 'e. bitU -> monadS 'rv bool 'e*) -Definition bool_of_bitU_fail {RV E} (b : bitU) : monadS RV bool E := -match b with - | B0 => returnS false - | B1 => returnS true - | BU => failS "bool_of_bitU" -end. - -(*val bool_of_bitU_nondetS : forall 'rv 'e. bitU -> monadS 'rv bool 'e*) -Definition bool_of_bitU_nondetS {RV E} (b : bitU) : monadS RV bool E := -match b with - | B0 => returnS false - | B1 => returnS true - | BU => undefined_boolS tt -end. - -(*val bools_of_bits_nondetS : forall 'rv 'e. list bitU -> monadS 'rv (list bool) 'e*) -Definition bools_of_bits_nondetS {RV E} bits : monadS RV (list bool) E := - foreachS bits [] - (fun b bools => - bool_of_bitU_nondetS b >>$= (fun b => - returnS (bools ++ [b]))). - -(*val of_bits_nondetS : forall 'rv 'a 'e. Bitvector 'a => list bitU -> monadS 'rv 'a 'e*) -Definition of_bits_nondetS {RV A E} bits `{ArithFact (A >=? 0)} : monadS RV (mword A) E := - bools_of_bits_nondetS bits >>$= (fun bs => - returnS (of_bools bs)). - -(*val of_bits_failS : forall 'rv 'a 'e. Bitvector 'a => list bitU -> monadS 'rv 'a 'e*) -Definition of_bits_failS {RV A E} bits `{ArithFact (A >=? 0)} : monadS RV (mword A) E := - maybe_failS "of_bits" (of_bits bits). - -(*val mword_nondetS : forall 'rv 'a 'e. Size 'a => unit -> monadS 'rv (mword 'a) 'e -let mword_nondetS () = - bools_of_bits_nondetS (repeat [BU] (integerFromNat size)) >>$= (fun bs -> - returnS (wordFromBitlist bs)) - - -val whileS : forall 'rv 'vars 'e. 'vars -> ('vars -> monadS 'rv bool 'e) -> - ('vars -> monadS 'rv 'vars 'e) -> monadS 'rv 'vars 'e -let rec whileS vars cond body s = - (cond vars >>$= (fun cond_val s' -> - if cond_val then - (body vars >>$= (fun vars s'' -> whileS vars cond body s'')) s' - else returnS vars s')) s - -val untilS : forall 'rv 'vars 'e. 'vars -> ('vars -> monadS 'rv bool 'e) -> - ('vars -> monadS 'rv 'vars 'e) -> monadS 'rv 'vars 'e -let rec untilS vars cond body s = - (body vars >>$= (fun vars s' -> - (cond vars >>$= (fun cond_val s'' -> - if cond_val then returnS vars s'' else untilS vars cond body s'')) s')) s -*) - -Fixpoint whileST' {RV Vars E} limit (vars : Vars) (cond : Vars -> monadS RV bool E) (body : Vars -> monadS RV Vars E) (acc : Acc (Zwf 0) limit) : monadS RV Vars E. -exact ( - if Z_ge_dec limit 0 then - cond vars >>$= fun cond_val => - if cond_val then - body vars >>$= fun vars => whileST' _ _ _ (limit - 1) vars cond body (_limit_reduces acc) - else returnS vars - else failS "Termination limit reached"). -Defined. - -Definition whileST {RV Vars E} (vars : Vars) measure (cond : Vars -> monadS RV bool E) (body : Vars -> monadS RV Vars E) : monadS RV Vars E := - let limit := measure vars in - whileST' limit vars cond body (Zwf_guarded limit). - -(*val untilM : forall 'rv 'vars 'e. 'vars -> ('vars -> monad 'rv bool 'e) -> - ('vars -> monad 'rv 'vars 'e) -> monad 'rv 'vars 'e*) -Fixpoint untilST' {RV Vars E} limit (vars : Vars) (cond : Vars -> monadS RV bool E) (body : Vars -> monadS RV Vars E) (acc : Acc (Zwf 0) limit) : monadS RV Vars E. -exact ( - if Z_ge_dec limit 0 then - body vars >>$= fun vars => - cond vars >>$= fun cond_val => - if cond_val then returnS vars else untilST' _ _ _ (limit - 1) vars cond body (_limit_reduces acc) - else failS "Termination limit reached"). -Defined. - -Definition untilST {RV Vars E} (vars : Vars) measure (cond : Vars -> monadS RV bool E) (body : Vars -> monadS RV Vars E) : monadS RV Vars E := - let limit := measure vars in - untilST' limit vars cond body (Zwf_guarded limit). - - -(*val choose_boolsS : forall 'rv 'e. nat -> monadS 'rv (list bool) 'e*) -Definition choose_boolsS {RV E} n : monadS RV (list bool) E := - genlistS (fun _ => choose_boolS tt) n. - -(* TODO: Replace by chooseS and prove equivalence to prompt monad version *) -(*val internal_pickS : forall 'rv 'a 'e. list 'a -> monadS 'rv 'a 'e*) -Definition internal_pickS {RV A E} (xs : list A) : monadS RV A E := - (* Use sufficiently many nondeterministically chosen bits and convert into an - index into the list *) - choose_boolsS (List.length xs) >>$= fun bs => - let idx := ((nat_of_bools bs) mod List.length xs)%nat in - match List.nth_error xs idx with - | Some x => returnS x - | None => failS "choose internal_pick" - end. - -Fixpoint undefined_word_natS {rv e} n : monadS rv (Word.word n) e := - match n with - | O => returnS Word.WO - | S m => - choose_boolS tt >>$= fun b => - undefined_word_natS m >>$= fun t => - returnS (Word.WS b t) - end. - -Definition undefined_bitvectorS {rv e} n `{ArithFact (n >=? 0)} : monadS rv (mword n) e := - undefined_word_natS (Z.to_nat n) >>$= fun w => - returnS (word_to_mword w). - - |
