def test_analyze_doesnt_overwrite_code_exitableing_symbol(self):
table = symbols.SymbolTable()
analyzer = symbols.SymbolCreatingAnalyzer(table)
mem = memory.Memory(bytearray(0x10000))
mem.annotate_jump_target(0xF000)
mem.annotate_call_target(0xF000)
intable = disasm.Instruction(location=0xF000,
opcode=0x60,
addr_mode=AddressModes.Implied)
exitableing_symbols = {0xf000: ('print', '')}
table = symbols.SymbolTable()
table[0xf000] = symbols.Symbol(address=0xf000, name="print")
analyzer.analyze(mem)
self.assertEqual(table[0xf000].name, "print")
def test_analyze_makes_lab_symbol_for_jump_target(self):
table = symbols.SymbolTable()
analyzer = symbols.SymbolCreatingAnalyzer(table)
mem = memory.Memory(bytearray(0x10000))
intable = disasm.Instruction(location=0xF000,
opcode=0x60,
addr_mode=AddressModes.Implied)
mem.set_instruction(0xF000, intable)
mem.annotate_jump_target(0xF000)
analyzer.analyze(mem)
self.assertEqual(table[0xf000].name, 'lab_f000')
def test_analyze_doesnt_make_symbol_for_jump_to_mid_Instruction(self):
table = symbols.SymbolTable()
analyzer = symbols.SymbolCreatingAnalyzer(table)
mem = memory.Memory(bytearray(0x10000))
intable = disasm.Instruction(opcode=0x31,
operands=(
0xaa,
0xbb,
),
addr_mode=AddressModes.Absolute)
self.assertTrue(len(intable), 3)
mem.set_instruction(0xF000, intable)
self.assertTrue(mem.is_instruction_start(0xF000))
self.assertTrue(mem.is_instruction_continuation(0xF001))
mem.annotate_jump_target(0xF001) # middle of Instruction
analyzer.analyze(mem)
self.assertEqual(table._symbols_by_address, {}) # xxx add accessor