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open import Pervasives
open import Pervasives_extra
open import Sail_instr_kinds
open import Sail_values
open import Sail_operators
open import State_monad
open import State
val MEMr : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> monadS 'regval 'b 'e
val MEMr_reserve : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> monadS 'regval 'b 'e
val MEMr_tag : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> monadS 'regval (bool * 'b) 'e
val MEMr_tag_reserve : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> monadS 'regval (bool * 'b) 'e
let MEMr addr size = read_memS Read_plain addr size
let MEMr_reserve addr size = read_memS Read_reserve addr size
val read_tag_bool : forall 'regval 'a 'e. Bitvector 'a => 'a -> monadS 'regval bool 'e
let read_tag_bool addr =
read_tagS addr >>$= fun t ->
maybe_failS "read_tag_bool" (bool_of_bitU t)
val write_tag_bool : forall 'regval 'a 'e. Bitvector 'a => 'a -> bool -> monadS 'regval unit 'e
let write_tag_bool addr t = write_tagS addr (bitU_of_bool t) >>$= fun _ -> returnS ()
let MEMr_tag addr size =
read_memS Read_plain addr size >>$= fun v ->
read_tag_bool addr >>$= fun t ->
returnS (t, v)
let MEMr_tag_reserve addr size =
read_memS Read_plain addr size >>$= fun v ->
read_tag_bool addr >>$= fun t ->
returnS (t, v)
val MEMea : forall 'regval 'a 'e. Bitvector 'a => 'a -> integer -> monadS 'regval unit 'e
val MEMea_conditional : forall 'regval 'a 'e. Bitvector 'a => 'a -> integer -> monadS 'regval unit 'e
val MEMea_tag : forall 'regval 'a 'e. Bitvector 'a => 'a -> integer -> monadS 'regval unit 'e
val MEMea_tag_conditional : forall 'regval 'a 'e. Bitvector 'a => 'a -> integer -> monadS 'regval unit 'e
let MEMea addr size = write_mem_eaS Write_plain addr (nat_of_int size)
let MEMea_conditional addr size = write_mem_eaS Write_conditional addr (nat_of_int size)
let MEMea_tag addr size = write_mem_eaS Write_plain addr (nat_of_int size)
let MEMea_tag_conditional addr size = write_mem_eaS Write_conditional addr (nat_of_int size)
val MEMval : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> 'b -> monadS 'regval unit 'e
val MEMval_conditional : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> 'b -> monadS 'regval bool 'e
val MEMval_tag : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> bool -> 'b -> monadS 'regval unit 'e
val MEMval_tag_conditional : forall 'regval 'a 'b 'e. Bitvector 'a, Bitvector 'b => 'a -> integer -> bool -> 'b -> monadS 'regval bool 'e
let MEMval _ size v = write_mem_valS v >>$= fun _ -> returnS ()
let MEMval_conditional _ size v = write_mem_valS v >>$= fun b -> returnS (if b then true else false)
let MEMval_tag addr size t v = write_mem_valS v >>$= fun _ -> write_tag_bool addr t >>$= fun _ -> returnS ()
let MEMval_tag_conditional addr size t v = write_mem_valS v >>$= fun b -> write_tag_bool addr t >>$= fun _ -> returnS (if b then true else false)
val MEM_sync : forall 'regval 'e. unit -> monadS 'regval unit 'e
let MEM_sync () = returnS () (*barrier Barrier_MIPS_SYNC*)
(* Some wrappers copied from aarch64_extras *)
(* TODO: Harmonise into a common library *)
let get_slice_int_bl len n lo =
(* TODO: Is this the intended behaviour? *)
let hi = lo + len - 1 in
let bs = bools_of_int (hi + 1) n in
subrange_list false bs hi lo
val get_slice_int : forall 'a. Bitvector 'a => integer -> integer -> integer -> 'a
let get_slice_int len n lo = of_bools (get_slice_int_bl len n lo)
let write_ram _ size _ addr data =
MEMea addr size >>$
MEMval addr size data
let read_ram _ size _ addr = MEMr addr size
let inline reg_deref = read_regS
let string_of_bits bs = string_of_bv (bits_of bs)
let string_of_int = show
let _sign_extend bits len = maybe_failwith (of_bits (exts_bv len bits))
let _zero_extend bits len = maybe_failwith (of_bits (extz_bv len bits))
let shift_bits_left v n =
let r = Maybe.bind (unsigned n) (fun n -> of_bits (shiftl_bv v n)) in
maybe_failS "shift_bits_left" r
let shift_bits_right v n =
let r = Maybe.bind (unsigned n) (fun n -> of_bits (shiftr_bv v n)) in
maybe_failS "shift_bits_right" r
let shift_bits_right_arith v n =
let r = Maybe.bind (unsigned n) (fun n -> of_bits (arith_shiftr_bv v n)) in
maybe_failS "shift_bits_right_arith" r
(* Use constants for undefined values for now *)
let internal_pick vs = returnS (head vs)
let undefined_bool = undefined_boolS
let undefined_string () = returnS ""
let undefined_unit () = returnS ()
let undefined_int () = returnS (0:ii)
val undefined_vector : forall 'rv 'a 'e. integer -> 'a -> monadS 'rv (list 'a) 'e
let undefined_vector len u = returnS (repeat [u] len)
val undefined_bitvector : forall 'rv 'a 'e. Bitvector 'a => integer -> monadS 'rv 'a 'e
let undefined_bitvector len = returnS (of_bools (repeat [false] len))
val undefined_bits : forall 'rv 'a 'e. Bitvector 'a => integer -> monadS 'rv 'a 'e
let undefined_bits = undefined_bitvector
let undefined_bit () = returnS B0
let undefined_real () = returnS (realFromFrac 0 1)
let undefined_range i j = returnS i
let undefined_atom i = returnS i
let undefined_nat () = returnS (0:ii)
let skip () = returnS ()
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