machine code
machine code
machine code
ormachine language
machine code
Noun | 1. | machine code - a set of instructions coded so that the computer can use it directly without further translation |
单词 | machine code | |||
释义 | machine codemachine codemachine codeormachine languagemachine code
machine codemachine code, languagemachine code[mə′shēn ‚kōd]machine codeExecution of machine code may either be hard-wired into thecentral processing unit or it may be controlled bymicrocode. The basic execution cycle consists of fetchingthe next instruction from main memory, decoding it(determining which operation it specifies and the location ofany arguments) and executing it by opening various gates(e.g. to allow data to flow from main memory into a CPUregister) and enabling functional units (e.g. signalling tothe ALU to perform an addition). Humans almost never write programs directly in machine code.Instead, they use a programming language which is translatedby the computer into machine code. The simplest kind ofprogramming language is assembly language which usually hasa one-to-one correspondence with the resulting machine codeinstructions but allows the use of mnemonics (ASCII strings)for the "op codes" (the part of the instruction whichencodes the basic type of operation to perform) and names forlocations in the program (branch labels) and for variables andconstants. machine codeThe binary instructions a CPU executes. See machine language.machine codemachine codeCOMPUTER instructions written as a form of zero/one combinations which the computer can execute by activating off/on electrical pulses. All ‘higher level’ computer program languages like BASIC or COBOL have to be translated into machine code for use in a computer.machine code
Synonyms for machine code
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