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Translation of assembly language into machine language. A much more human-friendly rendition of machine language, named assembly language, uses mnemonic codes to refer to machine code instructions, rather than using the instructions' numeric values directly, and uses symbolic names to refer to storage locations and sometimes registers. [3]
The first pass of assembly is done in order to identify binary addresses that correspond to the symbolic names. This is essential in order to guide pass two which is the line-by-line translation into machine language. [9] Commonly used assemblers include: x86 assembly languages (used in Intel and AMD processors) [10]
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]
Machine code is the form in which code that can be directly executed is stored on a computer. It consists of machine language instructions, stored in memory, that perform operations such as moving values in and out of memory locations, arithmetic and Boolean logic, and testing values and, based on the test, either executing the next instruction in memory or executing an instruction at another ...
The code can be read and written by a programmer. To run on a computer it must be converted into a machine readable form, a process called assembly. [4] The language is specific to a particular processor family and environment. [2]
Assemblers, which translate human readable assembly language to the machine code instructions executed by hardware, are not considered compilers. [66] [b] (The inverse program that translates machine code to assembly language is called a disassembler.)
The DOS executable XLT86.COM [12 KB] translates Intel 8080 assembly language source code to Intel 8086 assembly language source code. Despite its name this implementation in 8086 assembly is not related to Digital Research's earlier and much more sophisticated XLT86.) Albo, Julián (2009-04-24).
x86 assembly language is a family of low-level programming languages that are used to produce object code for the x86 class of processors. These languages provide backward compatibility with CPUs dating back to the Intel 8008 microprocessor, introduced in April 1972.