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What is the difference between machine instruction format and micro instruction format?
Wiki User
∙ 9y ago
Micro instrution
A single instruction in microcode. It is the most elementary instruction in the computer, such as moving the contents of a register to the arithmetic logic unit (ALU). It takes several microinstructions to carry out one complex machine instruction (CISC). Also called a "micro-op" or "µop," microinstructions differ within the same computer family and even the same vendor. For example, although all are x86 chips, the microcode for Intel's Pentium 4, Pentium M and AMD's Athlon are not the same. The software programmer never sees microinstructions, and they are not documented for the public.
Machine code - simple instructions that are executed directly by the CPU.
In other words, it takes many micro instructions to make a machine code. Micro Instructions work with the ALU wheras Machine Code works directly with the CPU
Wiki User
∙ 9y ago
Wiki User
∙ 13y agomicroinstruction: An instruction that controls data flow and instruction-execution sequencing in a processor at a more fundamental level than machine instructions
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