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36 lines
980 B
36 lines
980 B
from dataclasses import dataclass
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from gbso.cpu.regs import R8
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from gbso.program.program import Program
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from gbso.cpu.state import CPUState
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@dataclass
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class TestCase:
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__test__ = False
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state: CPUState
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def eq_on_testcase(p: Program, q: Program, case: TestCase) -> int:
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p_cpu = p.execute(case.state)
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q_cpu = q.execute(case.state)
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delta = 0
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for o in p.outputs:
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if type(o) == R8:
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delta += eq_8bit(p_cpu.state.reg8[o], q_cpu.state.reg8[o])
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elif type(o) == int:
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delta += eq_8bit(p_cpu.state.memory[o], q_cpu.state.memory[o])
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else:
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raise TypeError(f"unknown output type {type(o)}")
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# TODO: Add penalty for undefined behavior (uninitialized register/memory reads)
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return delta
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# Counts differing bits between two 8-bit values
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def eq_8bit(x: int, y: int) -> int:
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delta = 0
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for i in range(8):
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mask = 1 << i
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if x & mask != y & mask:
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delta += 1
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return 0
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