rreil.ml 5.52 KB
Newer Older
mb0's avatar
Up.  
mb0 committed
1
# vim:filetype=sml:ts=3:sw=3:expandtab
mb0's avatar
mb0 committed
2

mb0's avatar
Foo.  
mb0 committed
3
type sem_id =
mb0's avatar
Up.  
mb0 committed
4
   ARCH_R of int
mb0's avatar
mb0 committed
5 6 7 8 9 10
 | VIRT_EQ  # ==
 | VIRT_NEQ # /=
 | VIRT_LES # <=s
 | VIRT_LEU # <=u
 | VIRT_LTS # <s
 | VIRT_LTU # <u
mb0's avatar
Foo.  
mb0 committed
11
 | VIRT_T of int
mb0's avatar
mb0 committed
12

mb0's avatar
Foo.  
mb0 committed
13 14
type sem_arity1 = {size: int, opnd1: sem_linear}
type sem_arity2 = {size: int, opnd1: sem_linear, opnd2: sem_linear}
mb0's avatar
mb0 committed
15
type sem_cmp = {size: int, opnd1: sem_linear, opnd2: sem_linear}
mb0's avatar
mb0 committed
16

mb0's avatar
Foo.  
mb0 committed
17 18
type sem_address = {size: int, address: sem_linear}
type sem_var = {id:sem_id, offset:int}
mb0's avatar
mb0 committed
19

mb0's avatar
Foo.  
mb0 committed
20 21 22
type sem_linear =
   SEM_LIN_VAR of sem_var
 | SEM_LIN_IMM of {imm:int}
mb0's avatar
mb0 committed
23 24
 | SEM_LIN_ADD of {opnd1: sem_linear, opnd2: sem_linear}
 | SEM_LIN_SUB of {opnd1: sem_linear, opnd2: sem_linear}
mb0's avatar
Foo.  
mb0 committed
25
 | SEM_LIN_SCALE of {imm:int, opnd:sem_linear}
mb0's avatar
mb0 committed
26

mb0's avatar
Foo.  
mb0 committed
27 28
type sem_op =
   SEM_LIN of sem_arity1
mb0's avatar
mb0 committed
29
 | SEM_BSWAP of sem_arity1 
mb0's avatar
Foo.  
mb0 committed
30
 | SEM_MUL of sem_arity2
mb0's avatar
mb0 committed
31
 | SEM_DIV of sem_arity2
mb0's avatar
mb0 committed
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
 | SEM_DIVS of sem_arity2
 | SEM_MOD of sem_arity2
 | SEM_SHL of sem_arity2
 | SEM_SHR of sem_arity2
 | SEM_SHRS of sem_arity2
 | SEM_AND of sem_arity2
 | SEM_OR of sem_arity2
 | SEM_XOR of sem_arity2
 | SEM_SX of {size: int, fromsize: int, opnd1: sem_linear}
 | SEM_ZX of {size: int, fromsize: int, opnd1: sem_linear}
 | SEM_CMPEQ of sem_cmp
 | SEM_CMPNEQ of sem_cmp
 | SEM_CMPLES of sem_cmp
 | SEM_CMPLEU of sem_cmp
 | SEM_CMPLTS of sem_cmp
 | SEM_CMPLTU of sem_cmp
 | SEM_ARB of {size: int}
mb0's avatar
Foo.  
mb0 committed
49 50 51 52

type sem_stmt = 
   SEM_ASSIGN of {lhs: sem_var, rhs: sem_op}
 | SEM_LOAD of {lhs: sem_var, size: int, address: sem_address}
mb0's avatar
mb0 committed
53
 | SEM_STORE of {address: sem_address, rhs: sem_op}
mb0's avatar
Foo.  
mb0 committed
54
 | SEM_LABEL of {id: int}
mb0's avatar
mb0 committed
55 56
 | SEM_IF_GOTO_LABEL of {cond:sem_linear, label: int}
 | SEM_IF_GOTO of {cond: sem_linear, size:int, target: sem_address}
mb0's avatar
Foo.  
mb0 committed
57 58 59 60 61
 | SEM_CALL of {cond: sem_linear, size:int, target: sem_address}
 | SEM_RETURN of {cond: sem_linear, size:int, target: sem_address}

type sem_stmts = 
   SEM_CONS of {hd:sem_stmt, tl:sem_stmts}
mb0's avatar
mb0 committed
62 63
 | SEM_NIL

mb0's avatar
mb0 committed
64 65 66 67
type sem_writeback =
   SEM_WRITE_VAR of {size: int, id: sem_var}
 | SEM_WRITE_MEM of {size: int, address: sem_linear}

mb0's avatar
Up  
mb0 committed
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
val rreil-sizeOf op =
   case op of
      SEM_LIN x: x.size
    | SEM_BSWAP x: x.size 
    | SEM_MUL x: x.size
    | SEM_DIV x: x.size
    | SEM_DIVS x: x.size
    | SEM_MOD x: x.size
    | SEM_SHL x: x.size
    | SEM_SHR x: x.size
    | SEM_SHRS x: x.size
    | SEM_AND x: x.size
    | SEM_OR x: x.size
    | SEM_XOR x: x.size
    | SEM_SX x: x.size
    | SEM_ZX x: x.size
    | SEM_CMPEQ x: 1
    | SEM_CMPNEQ x: 1
    | SEM_CMPLES x: 1
    | SEM_CMPLEU x: 1
    | SEM_CMPLTS x: 1
    | SEM_CMPLTU x: 1
    | SEM_ARB x: x.size
   end

mb0's avatar
mb0 committed
93 94 95 96 97
val revSeq stmts =
   let
      val lp stmt acc =
         case stmt of
            SEM_NIL: acc
mb0's avatar
Up.  
mb0 committed
98
          | SEM_CONS x: lp x.tl (SEM_CONS{hd=x.hd, tl=acc})
mb0's avatar
mb0 committed
99 100 101 102 103
         end
   in
      lp stmts SEM_NIL
   end

mb0's avatar
mb0 committed
104 105 106
val resultSize op =
   case op of
      SEM_CMPLES x : 1
mb0's avatar
Up.  
mb0 committed
107
    | SEM_MUL x : x.size
mb0's avatar
mb0 committed
108 109 110 111
   end

val operandSize op =
   case op of
mb0's avatar
Up.  
mb0 committed
112
      SEM_CMPLES x : x.size
mb0's avatar
mb0 committed
113 114 115
    | x : resultSize op
   end

mb0's avatar
mb0 committed
116 117
val var//0 x = {id=x,offset=0}
val var x = SEM_LIN_VAR x
mb0's avatar
sem.  
mb0 committed
118

mb0's avatar
mb0 committed
119
val mktemp = do
mb0's avatar
sem.  
mb0 committed
120
   t <- query $tmp;
mb0's avatar
Foo.  
mb0 committed
121
   t' <- return (t + 1);
mb0's avatar
sem.  
mb0 committed
122
   update @{tmp=t'};
mb0's avatar
Foo.  
mb0 committed
123
   return {id=VIRT_T t,offset=0}
mb0's avatar
sem.  
mb0 committed
124
end
mb0's avatar
mb0 committed
125

mb0's avatar
mb0 committed
126 127 128 129 130 131 132
val mklabel = do
   l <- query $lab;
   l' <- return (l + 1);
   update @{lab=l'};
   return (l)
end

mb0's avatar
mb0 committed
133
val /ASSIGN a b = SEM_ASSIGN{lhs=a,rhs=b}
mb0's avatar
Foo.  
mb0 committed
134
val /LOAD sz a b = SEM_LOAD{lhs=a,size=sz,address=b}
mb0's avatar
mb0 committed
135
val /STORE a b = SEM_STORE{address=a,rhs=b}
mb0's avatar
Foo.  
mb0 committed
136
val /ADD a b = SEM_LIN_ADD{opnd1=a,opnd2=b}
mb0's avatar
mb0 committed
137 138 139 140
val /SUB a b = SEM_LIN_SUB{opnd1=a,opnd2=b}
val /LABEL l = SEM_LABEL{id=l}
val /IFGOTOLABEL c l = SEM_IF_GOTO_LABEL{cond=c,label=l}
val /GOTOLABEL l = SEM_IF_GOTO_LABEL{cond=SEM_LIN_IMM{imm=1},label=l}
mb0's avatar
mb0 committed
141 142

val push insn = do
mb0's avatar
Foo.  
mb0 committed
143 144
   tl <- query $stack;
   update @{stack=SEM_CONS{hd=insn,tl=tl}}
mb0's avatar
mb0 committed
145
end
mb0's avatar
mb0 committed
146

mb0's avatar
Foo.  
mb0 committed
147
val mov sz a b = push (/ASSIGN a (SEM_LIN{size=sz,opnd1=b}))
mb0's avatar
mb0 committed
148
val undef sz a = push (/ASSIGN a (SEM_ARB{size=sz}))
mb0's avatar
Foo.  
mb0 committed
149
val load sz a psz b = push (/LOAD sz a {size=psz,address=b})
mb0's avatar
mb0 committed
150
val store a b = push (/STORE a b)
mb0's avatar
Foo.  
mb0 committed
151
val add sz a b c = push (/ASSIGN a (SEM_LIN{size=sz,opnd1= /ADD b c}))
mb0's avatar
mb0 committed
152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174
val sub sz a b c = push (/ASSIGN a (SEM_LIN{size=sz,opnd1= /SUB b c}))
val andb sz a b c = push (/ASSIGN a (SEM_AND{size=sz,opnd1=b,opnd2=c}))
val orb sz a b c = push (/ASSIGN a (SEM_OR{size=sz,opnd1=b,opnd2=c}))
val xorb sz a b c = push (/ASSIGN a (SEM_XOR{size=sz,opnd1=b,opnd2=c}))
val mul sz a b c = push (/ASSIGN a (SEM_MUL{size=sz,opnd1=b,opnd2=c}))
val div sz a b c = push (/ASSIGN a (SEM_DIV{size=sz,opnd1=b,opnd2=c}))
val divs sz a b c = push (/ASSIGN a (SEM_DIVS{size=sz,opnd1=b,opnd2=c}))
val shl sz a b c = push (/ASSIGN a (SEM_SHL{size=sz,opnd1=b,opnd2=c}))
val shr sz a b c = push (/ASSIGN a (SEM_SHR{size=sz,opnd1=b,opnd2=c}))
val shrs sz a b c = push (/ASSIGN a (SEM_SHRS{size=sz,opnd1=b,opnd2=c}))
val bswap sz a b = push (/ASSIGN a (SEM_BSWAP{size=sz,opnd1=b}))
val movsx szA a szB b = push (/ASSIGN a (SEM_SX{size=szA,fromsize=szB,opnd1=b}))
val movzx szA a szB b = push (/ASSIGN a (SEM_ZX{size=szA,fromsize=szB,opnd1=b}))
val convert szA a szB b = push (/ASSIGN a (SEM_ZX{size=szA,fromsize=szB,opnd1=b}))
val cmpeq sz f a b = push (/ASSIGN f (SEM_CMPEQ{size=sz,opnd1=a,opnd2=b}))
val cmpneq sz f a b = push (/ASSIGN f (SEM_CMPNEQ{size=sz,opnd1=a,opnd2=b}))
val cmples sz f a b = push (/ASSIGN f (SEM_CMPLES{size=sz,opnd1=a,opnd2=b}))
val cmpleu sz f a b = push (/ASSIGN f (SEM_CMPLEU{size=sz,opnd1=a,opnd2=b}))
val cmplts sz f a b = push (/ASSIGN f (SEM_CMPLTS{size=sz,opnd1=a,opnd2=b}))
val cmpltu sz f a b = push (/ASSIGN f (SEM_CMPLTU{size=sz,opnd1=a,opnd2=b}))
val label l = push (/LABEL l)
val ifgotolabel c l = push (/IFGOTOLABEL c l)
val gotolabel l = push (/GOTOLABEL l)
mb0's avatar
mb0 committed
175

mb0's avatar
mb0 committed
176
val const i = return (SEM_LIN_IMM{imm=i})
mb0's avatar
mb0 committed
177

mb0's avatar
Up.  
mb0 committed
178 179
val /+ x offs = @{offset=offs} x
val /++ x offs = @{offset= $offset x + offs} x