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Machine code is generally different from bytecode (also known as p-code), which is either executed by an interpreter or itself compiled into machine code for faster (direct) execution. An exception is when a processor is designed to use a particular bytecode directly as its machine code, such as is the case with Java processors .
In computer science, a compiler-compiler or compiler generator is a programming tool that creates a parser, interpreter, or compiler from some form of formal description of a programming language and machine. The most common type of compiler-compiler is called a parser generator. [1] It handles only syntactic analysis.
A disassembler is a computer program that translates machine language into assembly language—the inverse operation to that of an assembler.The output of disassembly is typically formatted for human-readability rather than for input to an assembler, making disassemblers primarily a reverse-engineering tool.
Individual machine languages are specific to a family of processors; machine-language code for one family of processors cannot run directly on processors in another family unless the processors in question have additional hardware to support it (for example, DEC VAX processors included a PDP-11 compatibility mode).
A programming tool or software development tool is a computer program that is used to develop another computer program, usually by helping the developer manage computer files. For example, a programmer may use a tool called a source code editor to edit source code files, and then a compiler to convert the source code into machine code files.
The first programmable computers, which appeared at the end of the 1940s, [4] were programmed in machine language. Machine language is difficult to debug and not portable across different computers. [5] Initially, hardware resources were more expensive than human resources. [6] As programs became complex, programmer productivity became the ...
The purpose of assembly language, like other coding languages, is to make the programming process more user-friendly than programming in machine language. Assembler languages utilize mnemonic devices and symbolic addresses to differentiate between opcode, operands, and specific memory addresses.
In computer programming, assembly language (alternatively assembler language [1] or symbolic machine code), [2] [3] [4] often referred to simply as assembly and commonly abbreviated as ASM or asm, is any low-level programming language with a very strong correspondence between the instructions in the language and the architecture's machine code instructions. [5]