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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]
x86 assembly language is the name for the family of assembly languages which provide some level of backward compatibility with CPUs back to the Intel 8008 microprocessor, which was launched in April 1972. [1] [2] It is used to produce object code for the x86 class of processors. Regarded as a programming language, assembly is machine-specific ...
Machine code can easily be decoded back to its corresponding assembly language source code because assembly language forms a one-to-one mapping to machine code. [17] The assembly language decoding method is called disassembly. Machine code may be decoded back to its corresponding high-level language under two conditions:
Meaning Notes BOUND: 62 /r: Check array index against bounds: raises software interrupt 5 if test fails ENTER: C8 iw ib: Enter stack frame: Modifies stack for entry to procedure for high level language. Takes two operands: the amount of storage to be allocated on the stack and the nesting level of the procedure. INSB/INSW: 6C Input from port to ...
In computer programming an assembly is a runtime unit consisting of types and other resources. All types in an assembly have the same version number. Often, one assembly has only one namespace and is used by one program. But it can span over several namespaces. Also, one namespace can spread over several assemblies.
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 ...
Assembly language, or just assembly, is a low-level programming language, which uses mnemonic instructions and operands to represent machine code. [10] This enhances the readability while still giving precise control over the machine instructions.
INT is an assembly language instruction for x86 processors that generates a software interrupt. It takes the interrupt number formatted as a byte value. [1] When written in assembly language, the instruction is written like this: INT X. where X is the software interrupt that should be generated (0-255).