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# Toshiba MeP-c4 - Leading zero instructions unit tests
# Guillaume Valadon <guillaume@valadon.net>
from ut_helpers_ir import exec_instruction
from miasm.expression.expression import ExprId, ExprInt, ExprCond, ExprOp
class TestLdz(object):
def test_ldz(self):
"""Test LDZ execution"""
# LDZ Rn,Rm
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0x80000000, 32))],
[(ExprId("R0", 32), ExprInt(0, 32))])
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0x40000000, 32))],
[(ExprId("R0", 32), ExprInt(1, 32))])
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0b1111, 32))],
[(ExprId("R0", 32), ExprInt(28, 32))])
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0b0100, 32))],
[(ExprId("R0", 32), ExprInt(29, 32))])
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0b0010, 32))],
[(ExprId("R0", 32), ExprInt(30, 32))])
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0b0001, 32))],
[(ExprId("R0", 32), ExprInt(31, 32))])
exec_instruction("LDZ R0, R1",
[(ExprId("R1", 32), ExprInt(0b0000, 32))],
[(ExprId("R0", 32), ExprInt(32, 32))])
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