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microprogramming

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microprogramming

Process of writing microcode for a microprocessor. Microcode is low-level code that defines how a microprocessor should function when it executes machine-language instructions. Typically, one machine-language instruction translates into several microcode instructions. On some computers, the microcode is stored in ROM and cannot be modified; on some larger computers, it is stored in EPROM and therefore can be replaced with newer versions.


microprogramming [¦mī·krō′prō‚gram·iŋ]
(computer science)
Transformation of a computer instruction into a sequence of elementary steps (microinstructions) by which the computer hardware carries out the instruction.

microprogramming - microcode


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