On the other hand, after compiling the source code the bytecode is created. The virtual machine can execute it. Another difference between machine code and bytecode is that the machine code is a low-level code while bytecode is an intermediate code. In brief, the processor or the CPU can directly execute the machine code. However, the bytecode is created after compiling the source code, and the virtual machine can execute it.
Thus, this is the main difference between machine code and bytecode. She is passionate about sharing her knowldge in the areas of programming, data science, and computer systems. Figure 1: Machine Code. Figure 2: Java Bytecode. View all posts. The programs cannot run unless there is a JVM available for the appropriate hardware and OS platform you will execute on. The JVM is an interpreter for bytecode.
Java bytecode is not platform-specific, so it can be fed to just any platform. Machine code is a computer program that is made up of the native instructions associated with that particular computer. Every computer processor is associated with a set of machine code instructions which it can understand and therefore execute.
All the programs must be converted into the machine language before they can be run. It simply is a list of CPU instructions stored in memory at the lowest level. It is a highly optimized set of instructions which can be recognized as a machine code for a made-up processor or a machine code for the CPU of the internal computer.
It is the language which all programs must be converted into before they can be run. The format of bytecode is always the same, regardless of what type of machine it was created on.
A program can be compiled into bytecode and sent to any machine, if that machine has the run-time installed. Machine code, on the other hand, is not platform independent meaning it cannot be run on just any platform with the same OS because it is made up of the native instructions associated with that particular computer.
Bytecode is not a machine code for any particular computer and may be portable among computer architectures. It is similar to machine code which is interpreted by a runtime system so that the code can be executed on a system.
Unlike bytecode which is platform-independent, machine code cannot be run on just any platform with the same operating system. Difference Between Bytecode and Machine Code. Java portal. Retrieved From Wikipedia, the free encyclopedia. Tags: Java bytecode, Informatics Engineering, , Java bytecode Java bytecode is the form of instructions that the Java virtual machine executes, Each bytecode opcode is one byte in length although some require parameters resulting in some multi byte instructions, Not all of the possible opcodes are used, 51 are reserved for future use, Beyond that Sun Microsystems the original developer of the Java platform has set aside three values to be, Java bytecode, English, Instruction Examples, Tutorials, Reference, Books, Guide p2k, unkris.
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