21. The software those depend on, from OS to virtual machines, leverage native code with no protection. 22. "Shared libraries " are a facility to reuse segments of native code across multiple running programs. 23. The HotSpot Java virtual machine ( JVM ) uses profile-guided optimization to dynamically generate native code . 24. While the first is still a Dylan-to-C compiler, Open Dylan produces native code for Intel processors. 25. Others compile to interpreted bytecode, which is less efficient than native code , but eases binary-code portability. 26. A so-called " native code compiler " is one that compiles a program into machine code. 27. Common Lisp implementations may use any mix of native code compilation, byte code compilation or interpretation. 28. It is free software, and features just-in-time compilation to bytecode and native code for the x86 architecture. 29. Instead, the Brew application is compiled to native code and linked with a compatible Brew runtime library. 30. On PowerMacs, SpeedDoubler provides PowerPC native code for some system routines that normally run in emulation mode.
