Miasm2: miasm2.arch.x86.arch.x86_s08to16 Class Reference

Inheritance diagram for miasm2.arch.x86.arch.x86_s08to16:

Collaboration diagram for miasm2.arch.x86.arch.x86_s08to16:

Public Member Functions
def	myexpr

def	int2expr

def	expr2int

def	decode

def	encode

def	decodeval

def	encodeval

def	fromstring

Public Attributes
	expr

	out_size

	value

Static Public Attributes
int	in_size = 8

int	out_size = 16

	parser = base_expr

int	intsize = 32

tuple	intmask = (1 << intsize)

Detailed Description

Definition at line 1107 of file arch.py.

Member Function Documentation

def miasm2.arch.x86.arch.x86_s08to16.decode	(	self,
		v
	)

Definition at line 1125 of file arch.py.

 
     def decode(self, v):
         v = v & self.lmask
         v = self.decodeval(v)
         if self.parent.v_opmode() == 64:
             self.expr = ExprInt64(sign_ext(v, self.in_size, 64))
         else:
             if (1 << (self.l - 1)) & v:
                 v = sign_ext(v, self.l, self.out_size)
             self.expr = self.myexpr(v)
         return True

miasm2.arch.x86.arch.x86_s08to16.expr

expr

Definition: arch.py:1129

miasm2.arch.x86.arch.x86_imm.decodeval

def decodeval

Definition: arch.py:1037

miasm2.arch.x86.arch.x86_s08to16.in_size

int in_size

Definition: arch.py:1108

miasm2.expression.expression.ExprInt64

def ExprInt64

Definition: expression.py:1161

miasm2.arch.x86.arch.x86_s08to16.out_size

int out_size

Definition: arch.py:1109

miasm2.core.cpu.sign_ext

def sign_ext

Definition: cpu.py:1602

miasm2.arch.x86.arch.x86_s08to16.myexpr

def myexpr

Definition: arch.py:1111

miasm2.arch.x86.arch.x86_s08to16.decode

def decode

Definition: arch.py:1125

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def miasm2.arch.x86.arch.x86_s08to16.decodeval	(	self,
		v
	)

Definition at line 1165 of file arch.py.

 
     def decodeval(self, v):
         return swap_uint(self.l, v)

miasm2.arch.x86.arch.x86_s08to16.decodeval

def decodeval

Definition: arch.py:1165

miasm2.core.cpu.swap_uint

def swap_uint

Definition: cpu.py:1578

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def miasm2.arch.x86.arch.x86_s08to16.encode ( self )

Definition at line 1136 of file arch.py.

 
     def encode(self):
         if not isinstance(self.expr, ExprInt):
             return False
         v = int(self.expr.arg)
         opmode = self.parent.v_opmode()
 
         out_size = self.out_size
         if opmode != self.out_size:
             if opmode == 32 and self.out_size == 64:
                 out_size = opmode
                 if v == sign_ext(
                     int(v & ((1 << self.in_size) - 1)), self.in_size, out_size):
                     pass
                 else:
                     # test with rex_w
                     self.parent.rex_w.value = 1
                     opmode = self.parent.v_opmode()
                     out_size = opmode
                     if (v != sign_ext(
                         int(v & ((1 << self.in_size) - 1)),
                         self.in_size, out_size)):
                         return False
         if v != sign_ext(
             int(v & ((1 << self.in_size) - 1)), self.in_size, out_size):
             return False
         v = self.encodeval(v)
         self.value = (v & 0xffffffff) & self.lmask
         return True

miasm2.arch.x86.arch.x86_s08to16.expr

expr

Definition: arch.py:1129

miasm2.arch.x86.arch.x86_s08to16.encode

def encode

Definition: arch.py:1136

miasm2.arch.x86.arch.x86_s08to16.in_size

int in_size

Definition: arch.py:1108

miasm2.arch.x86.arch.x86_s08to16.out_size

int out_size

Definition: arch.py:1109

miasm2.arch.x86.arch.x86_s08to16.value

value

Definition: arch.py:1162

miasm2.core.cpu.sign_ext

def sign_ext

Definition: cpu.py:1602

miasm2.arch.x86.arch.x86_imm.encodeval

def encodeval

Definition: arch.py:1040

def miasm2.arch.x86.arch.x86_s08to16.encodeval	(	self,
		v
	)

Definition at line 1168 of file arch.py.

 
     def encodeval(self, v):
         return swap_sint(self.l, v)

miasm2.arch.x86.arch.x86_s08to16.encodeval

def encodeval

Definition: arch.py:1168

miasm2.core.cpu.swap_sint

def swap_sint

Definition: cpu.py:1590

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def miasm2.arch.x86.arch.x86_s08to16.expr2int	(	self,
		e
	)

Definition at line 1117 of file arch.py.

 
     def expr2int(self, e):
         if not isinstance(e, ExprInt):
             return None
         v = int(e.arg)
         if v & ~((1 << self.l) - 1) != 0:
             return None
         return v

miasm2.arch.x86.arch.x86_s08to16.expr2int

def expr2int

Definition: arch.py:1117

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def miasm2.core.cpu.imm_noarg.fromstring	(	self,
		s,
		parser_result = `None`
	)

inherited

Definition at line 1481 of file cpu.py.

 
     def fromstring(self, s, parser_result=None):
         if parser_result:
             e, start, stop = parser_result[self.parser]
         else:
             try:
                 e, start, stop = self.parser.scanString(s).next()
             except StopIteration:
                 return None, None
         if e is None:
             return None, None
 
         assert(isinstance(e, m2_expr.Expr))
         if isinstance(e, tuple):
             self.expr = self.int2expr(e[1])
         elif isinstance(e, m2_expr.Expr):
             self.expr = e
         else:
             raise TypeError('zarb expr')
         if self.expr is None:
             log.debug('cannot fromstring int %r', s)
             return None, None
         return start, stop

miasm2.core.cpu.imm_noarg.fromstring

def fromstring

Definition: cpu.py:1481

miasm2.core.cpu.imm_noarg.int2expr

def int2expr

Definition: cpu.py:1468

miasm2.core.cpu.imm_noarg.expr

expr

Definition: cpu.py:1494

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def miasm2.arch.x86.arch.x86_s08to16.int2expr	(	self,
		v
	)

Definition at line 1114 of file arch.py.

 
     def int2expr(self, v):
         return self.myexpr(v)

miasm2.arch.x86.arch.x86_s08to16.myexpr

def myexpr

Definition: arch.py:1111

miasm2.arch.x86.arch.x86_s08to16.int2expr

def int2expr

Definition: arch.py:1114

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def miasm2.arch.x86.arch.x86_s08to16.myexpr	(	self,
		x
	)

Definition at line 1111 of file arch.py.

 
     def myexpr(self, x):
         return ExprInt16(x)

miasm2.arch.x86.arch.x86_s08to16.myexpr

def myexpr

Definition: arch.py:1111

miasm2.expression.expression.ExprInt16

def ExprInt16

Definition: expression.py:1153

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Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Member Function Documentation

Member Data Documentation