diff options
Diffstat (limited to 'src/gen_lib/state.lem')
| -rw-r--r-- | src/gen_lib/state.lem | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/src/gen_lib/state.lem b/src/gen_lib/state.lem index 61477258..f69f59c1 100644 --- a/src/gen_lib/state.lem +++ b/src/gen_lib/state.lem @@ -1,33 +1,8 @@ open import Pervasives_extra -(*open import Sail_impl_base*) open import Sail_values -open import Prompt_monad -open import Prompt open import State_monad open import {isabelle} `State_monad_lemmas` -(* State monad wrapper around prompt monad *) - -val liftState : forall 'regval 'regs 'a 'e. register_accessors 'regs 'regval -> monad 'regval 'a 'e -> monadS 'regs 'a 'e -let rec liftState ra s = match s with - | (Done a) -> returnS a - | (Read_mem rk a sz k) -> bindS (read_mem_bytesS rk a sz) (fun v -> liftState ra (k v)) - | (Read_tag t k) -> bindS (read_tagS t) (fun v -> liftState ra (k v)) - | (Write_memv a k) -> bindS (write_mem_bytesS a) (fun v -> liftState ra (k v)) - | (Write_tag a t k) -> bindS (write_tagS a t) (fun v -> liftState ra (k v)) - | (Read_reg r k) -> bindS (read_regvalS ra r) (fun v -> liftState ra (k v)) - | (Excl_res k) -> bindS (excl_resultS ()) (fun v -> liftState ra (k v)) - | (Undefined k) -> bindS (undefined_boolS ()) (fun v -> liftState ra (k v)) - | (Write_ea wk a sz k) -> seqS (write_mem_eaS wk a sz) (liftState ra k) - | (Write_reg r v k) -> seqS (write_regvalS ra r v) (liftState ra k) - | (Footprint k) -> liftState ra k - | (Barrier _ k) -> liftState ra k - | (Print _ k) -> liftState ra k (* TODO *) - | (Fail descr) -> failS descr - | (Exception e) -> throwS e -end - - val iterS_aux : forall 'rv 'a 'e. integer -> (integer -> 'a -> monadS 'rv unit 'e) -> list 'a -> monadS 'rv unit 'e let rec iterS_aux i f xs = match xs with | x :: xs -> f i x >>$ iterS_aux (i + 1) f xs @@ -53,6 +28,46 @@ end declare {isabelle} termination_argument foreachS = automatic +val and_boolS : forall 'rv 'e. monadS 'rv bool 'e -> monadS 'rv bool 'e -> monadS 'rv bool 'e +let and_boolS l r = l >>$= (fun l -> if l then r else returnS false) + +val or_boolS : forall 'rv 'e. monadS 'rv bool 'e -> monadS 'rv bool 'e -> monadS 'rv bool 'e +let or_boolS l r = l >>$= (fun l -> if l then returnS true else r) + +val bool_of_bitU_fail : forall 'rv 'e. bitU -> monadS 'rv bool 'e +let bool_of_bitU_fail = function + | B0 -> returnS false + | B1 -> returnS true + | BU -> failS "bool_of_bitU" +end + +val bool_of_bitU_oracleS : forall 'rv 'e. bitU -> monadS 'rv bool 'e +let bool_of_bitU_oracleS = function + | B0 -> returnS false + | B1 -> returnS true + | BU -> undefined_boolS () +end + +val bools_of_bits_oracleS : forall 'rv 'e. list bitU -> monadS 'rv (list bool) 'e +let bools_of_bits_oracleS bits = + foreachS bits [] + (fun b bools -> + bool_of_bitU_oracleS b >>$= (fun b -> + returnS (bools ++ [b]))) + +val of_bits_oracleS : forall 'rv 'a 'e. Bitvector 'a => list bitU -> monadS 'rv 'a 'e +let of_bits_oracleS bits = + bools_of_bits_oracleS bits >>$= (fun bs -> + returnS (of_bools bs)) + +val of_bits_failS : forall 'rv 'a 'e. Bitvector 'a => list bitU -> monadS 'rv 'a 'e +let of_bits_failS bits = maybe_failS "of_bits" (of_bits bits) + +val mword_oracleS : forall 'rv 'a 'e. Size 'a => unit -> monadS 'rv (mword 'a) 'e +let mword_oracleS () = + bools_of_bits_oracleS (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 |
