def ap.isb
import bend-osdev-aes@0.1.0.0/PROOF.bend as PROOFimport Base
1784def ap.isb(+x: U32, +y: U32, +e: {x == U32.and(255, y) : U32}) -> {x == U32.and(255, x) : U32}:
1785 %Equal.sym(U32, x, U32.and(255, y), e) : {_ == U32.and(255, _) : U32}
1786 Equal.sym(U32, U32.and(255, U32.and(255, y)), U32.and(255, y), ap.bb(y))