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			19 lines
		
	
	
		
			241 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			19 lines
		
	
	
		
			241 B
		
	
	
	
		
			Python
		
	
	
	
	
	
| from rule import Rule
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| from opcodes import *
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| 
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| """
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| byte(A, X) -> 0
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| given A >= WordSize / 8
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| """
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| 
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| rule = Rule()
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| 
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| n_bits = 256
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| 
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| # Input vars
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| X = BitVec('X', n_bits)
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| A = BitVec('A', n_bits)
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| 
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| rule.require(A >= n_bits / 8)
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| rule.check(BYTE(A, X), 0)
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