- sanity checks - SANITY CHECK (https://cs.android.com/android/platform/superproject/main/+/main:art/libdexfile/dex/dex_file_verifier.cc if check failed, .dex is not loaded but apk do not crash !!!) - V41 https://cs.android.com/android/platform/superproject/main/+/main:art/libdexfile/dex/dex_file_verifier.cc;drc=e8da7cd1d0e7d3535c82f8d05adcef3edd43cd40;l=634 - tests - https://source.android.com/docs/core/runtime/dex-format#system-annotation - goto size computation - no nop when no payload - option to get label at every code addresses - name register / parameters - ord in python