mirror of
https://github.com/cea-sec/miasm
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serpilliere
83 lines
1.3 KiB
Python
83 lines
1.3 KiB
Python
from miasm.expression.expression import *
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print 'simple expression canonization demo'
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# define 2 ID
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a = ExprId('eax', 32)
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b = ExprId('ebx', 32)
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print a, b
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# eax ebx
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# add those ID
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c = ExprOp('+', a, b)
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print c
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# (eax + ebx)
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# + automaticaly generates ExprOp('+', a, b)
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c = a + b
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print c
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# (eax + ebx)
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# ax is a slice of eax
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ax = a[:16]
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print ax
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# eax[0:16]
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#memory deref
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d = ExprMem(c, 32)
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print d
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# @32[(eax + ebx)]
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print (a+b).canonize()
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print (b+a).canonize()
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m = ExprMem(a)
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print (a+m).canonize()
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print (m+a).canonize()
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s = a[:8]
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print (a+s).canonize()
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print (s+a).canonize()
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print (m+s).canonize()
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print (s+m).canonize()
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i1 = ExprInt(uint32(0x1))
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i2 = ExprInt(uint32(0x2))
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print (i1+i2).canonize()
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print (i2+i1).canonize()
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print (a+i2).canonize()
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print (i2+a).canonize()
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print (m+i2).canonize()
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print (i2+m).canonize()
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print (s+i2).canonize()
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print (i2+s).canonize()
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cc = ExprCond(a, b, c)
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o = ExprCompose([ExprSliceTo(a[:8], 8, 16),
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ExprSliceTo(a[8:16], 0, 8)])
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print o
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print o.canonize()
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o = ExprCompose([ExprSliceTo(a[8:16], 0, 8),
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ExprSliceTo(a[:8], 8, 16)])
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print o
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print o.canonize()
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print ExprMem(o).canonize()
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l = [a, b, c, m, s, i1, i2, o]
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print l
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print ExprOp('+', *l).canonize()
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l.reverse()
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print l
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print ExprOp('+', *l).canonize()
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