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Cryptographic (e.g. RDRAND, AES-NI) Discontinued (e.g. 3DNow!, MPX, XOP) v. t. e. The x86 instruction set refers to the set of instructions that x86 -compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor.
An illegal opcode, also called an unimplemented operation, [1] unintended opcode[2] or undocumented instruction, is an instruction to a CPU that is not mentioned in any official documentation released by the CPU's designer or manufacturer, which nevertheless has an effect. Illegal opcodes were common on older CPUs designed during the 1970s ...
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 ...
Push 1 (of type int32) if value1 g reater that value2, un signed or un ordered, else push 0. Base instruction. 0xC3. ckfinite. Throw ArithmeticException if value is not a finite number. Base instruction. 0xFE 0x04. clt. Push 1 (of type int32) if value1 l ower than value2, else push 0.
Instruction cycle. The instruction cycle (also known as the fetch–decode–execute cycle, or simply the fetch–execute cycle) is the cycle that the central processing unit (CPU) follows from boot-up until the computer has shut down in order to process instructions. It is composed of three main stages: the fetch stage, the decode stage, and ...
v. t. e. In computing, an opcode (abbreviated from operation code) [1][2] is an enumerated value that specifies the operation to be performed. Opcodes are employed in hardware devices such as arithmetic logic units (ALUs) and central processing units (CPUs) as well as in some software instruction sets. In ALUs the opcode is directly applied to ...
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In computing and user interface engineering, a selection is a list of items on which user operations will take place. The user typically adds items to the list manually, although the computer may create a selection automatically. Selections are enacted through combinations of key presses on a keyboard, with a precision pointing device (mouse or ...