| fillsgn(2, int2bytes(s2i(sho))) = by ' + by0 ', s2i(sho) = b2i(i2b(s2i(sho))) ⊦ by0 = i2b(s2i(sho)) ∧ by = i2b(s2i(sho) >> 8) |
fillsgn(2, int2bytes(b2i(i2b(s2i(sho))))) = by ' + by0 ' ⊦ by0 = i2b(b2i(i2b(s2i(sho)))) ∧ by = i2b(b2i(i2b(s2i(sho))) >> 8)