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# Toshiba MeP-c4 - Byte/Halfword extension instructions unit tests
# Guillaume Valadon <guillaume@valadon.net>
from ut_helpers_ir import exec_instruction
from miasm2.expression.expression import ExprId, ExprMem, ExprInt
class TestExtension(object):
def test_extb(self):
"""Test EXTB execution"""
# EXTB Rn
exec_instruction("EXTB R1",
[(ExprId("R1", 32), ExprInt(0xFE, 32))],
[(ExprId("R1", 32), ExprInt(0xFFFFFFFE, 32))])
exec_instruction("EXTB R2",
[(ExprId("R2", 32), ExprInt(0x80, 32))],
[(ExprId("R2", 32), ExprInt(0xFFFFFF80, 32))])
def test_exth(self):
"""Test EXTH execution"""
# EXTH Rn
exec_instruction("EXTH R1",
[(ExprId("R1", 32), ExprInt(0xFFFE, 32))],
[(ExprId("R1", 32), ExprInt(0xFFFFFFFE, 32))])
exec_instruction("EXTH R2",
[(ExprId("R2", 32), ExprInt(0x8000, 32))],
[(ExprId("R2", 32), ExprInt(0xFFFF8000, 32))])
def test_extub(self):
"""Test EXTUB execution"""
# EXTUB Rn
exec_instruction("EXTUB R1",
[(ExprId("R1", 32), ExprInt(0xFFFFFFFE, 32))],
[(ExprId("R1", 32), ExprInt(0xFE, 32))])
exec_instruction("EXTUB R2",
[(ExprId("R2", 32), ExprInt(0xFFFFFF80, 32))],
[(ExprId("R2", 32), ExprInt(0x80, 32))])
def test_extuh(self):
"""Test EXTUH execution"""
# EXTUH Rn
exec_instruction("EXTUH R1",
[(ExprId("R1", 32), ExprInt(0xFFFFFFFE, 32))],
[(ExprId("R1", 32), ExprInt(0xFFFE, 32))])
exec_instruction("EXTUH R2",
[(ExprId("R2", 32), ExprInt(0xFFFF8000, 32))],
[(ExprId("R2", 32), ExprInt(0x8000, 32))])
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