1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
open import Pervasives_extra
open import Sail_impl_base
open import Sail_values
val return : forall 'a. 'a -> outcome 'a
let return a = Done a
val bind : forall 'a 'b. outcome 'a -> ('a -> outcome 'b) -> outcome 'b
let rec bind m f = match m with
| Done a -> f a
| Read_mem descr k -> Read_mem descr (fun v -> let (o,opt) = k v in (bind o f,opt))
| Read_reg descr k -> Read_reg descr (fun v -> let (o,opt) = k v in (bind o f,opt))
| Write_memv descr k -> Write_memv descr (fun v -> let (o,opt) = k v in (bind o f,opt))
| Excl_res k -> Excl_res (fun v -> let (o,opt) = k v in (bind o f,opt))
| Write_ea descr o_s -> Write_ea descr (let (o,opt) = o_s in (bind o f,opt))
| Barrier descr o_s -> Barrier descr (let (o,opt) = o_s in (bind o f,opt))
| Footprint o_s -> Footprint (let (o,opt) = o_s in (bind o f,opt))
| Write_reg descr o_s -> Write_reg descr (let (o,opt) = o_s in (bind o f,opt))
| Escape descr -> Escape descr
| Fail descr -> Fail descr
| Error descr -> Error descr
| Internal descr o_s -> Internal descr (let (o,opt) = o_s in (bind o f ,opt))
end
type M 'a = outcome 'a
let inline (>>=) = bind
val (>>) : forall 'b. M unit -> M 'b -> M 'b
let inline (>>) m n = m >>= fun _ -> n
val exit : forall 'a 'b. 'b -> M 'a
let exit s = Fail Nothing
val read_mem : bool -> read_kind -> vector bitU -> integer -> M (vector bitU)
let read_mem dir rk addr sz =
let addr = address_lifted_of_bitv addr in
let sz = natFromInteger sz in
let k memory_value =
let bitv = internal_mem_value dir memory_value in
(Done bitv,Nothing) in
Read_mem (rk,addr,sz) k
val excl_result : unit -> M bool
let excl_result () =
let k successful = (return successful,Nothing) in
Excl_res k
val write_mem_ea : write_kind -> vector bitU -> integer -> M unit
let write_mem_ea wk addr sz =
let addr = address_lifted_of_bitv addr in
let sz = natFromInteger sz in
Write_ea (wk,addr,sz) (Done (),Nothing)
val write_mem_val : vector bitU -> M bool
let write_mem_val v =
let v = external_mem_value v in
let k successful = (return successful,Nothing) in
Write_memv v k
val read_reg_aux : reg_name -> M (vector bitU)
let read_reg_aux reg =
let k reg_value =
let v = internal_reg_value reg_value in
(Done v,Nothing) in
Read_reg reg k
let read_reg reg =
read_reg_aux (external_reg_whole reg)
let read_reg_range reg i j =
read_reg_aux (external_reg_slice reg (natFromInteger i,natFromInteger j))
let read_reg_bit reg i =
read_reg_aux (external_reg_slice reg (natFromInteger i,natFromInteger i)) >>= fun v ->
return (extract_only_bit v)
let read_reg_field reg regfield =
read_reg_aux (external_reg_field_whole reg regfield)
let read_reg_bitfield reg regfield =
read_reg_aux (external_reg_field_whole reg regfield) >>= fun v ->
return (extract_only_bit v)
val write_reg_aux : reg_name -> vector bitU -> M unit
let write_reg_aux reg_name v =
let regval = external_reg_value reg_name v in
Write_reg (reg_name,regval) (Done (), Nothing)
let write_reg reg v =
write_reg_aux (external_reg_whole reg) v
let write_reg_range reg i j v =
write_reg_aux (external_reg_slice reg (natFromInteger i,natFromInteger j)) v
let write_reg_bit reg i bit =
let iN = natFromInteger i in
write_reg_aux (external_reg_slice reg (iN,iN)) (Vector [bit] i (is_inc_of_reg reg))
let write_reg_field reg regfield v =
write_reg_aux (external_reg_field_whole reg regfield) v
let write_reg_bitfield reg regfield bit =
write_reg_aux (external_reg_field_whole reg regfield)
(Vector [bit] 0 (is_inc_of_reg reg))
let write_reg_field_range reg regfield i j v =
write_reg_aux (external_reg_field_slice reg regfield (natFromInteger i,natFromInteger j)) v
val barrier : barrier_kind -> M unit
let barrier bk = Barrier bk (Done (), Nothing)
val footprint : M unit
let footprint = Footprint (Done (),Nothing)
val foreachM_inc : forall 'vars. (integer * integer * integer) -> 'vars ->
(integer -> 'vars -> M 'vars) -> M 'vars
let rec foreachM_inc (i,stop,by) vars body =
if i <= stop
then
body i vars >>= fun vars ->
foreachM_inc (i + by,stop,by) vars body
else return vars
val foreachM_dec : forall 'vars. (integer * integer * integer) -> 'vars ->
(integer -> 'vars -> M 'vars) -> M 'vars
let rec foreachM_dec (i,stop,by) vars body =
if i >= stop
then
body i vars >>= fun vars ->
foreachM_dec (i - by,stop,by) vars body
else return vars
let write_two_regs r1 r2 vec =
let is_inc =
let is_inc_r1 = is_inc_of_reg r1 in
let is_inc_r2 = is_inc_of_reg r2 in
let () = ensure (is_inc_r1 = is_inc_r2)
"write_two_regs called with vectors of different direction" in
is_inc_r1 in
let (size_r1 : integer) = size_of_reg r1 in
let (start_vec : integer) = get_start vec in
let size_vec = length vec in
let r1_v =
if is_inc
then slice vec start_vec (size_r1 - start_vec - 1)
else slice vec start_vec (start_vec - size_r1 - 1) in
let r2_v =
if is_inc
then slice vec (size_r1 - start_vec) (size_vec - start_vec)
else slice vec (start_vec - size_r1) (start_vec - size_vec) in
write_reg r1 r1_v >> write_reg r2 r2_v
|
