12-09-2017, 10:46 AM
In electronic engineering and computer engineering, microarchitecture, also called computer organization and sometimes abbreviated as μarch or uarch, is the way in which an instruction set architecture (ISA) is implemented in a particular processor. A given ISA can be implemented with different microarchitectures; implementations may vary due to different goals of a given design or due to changes in technology. Computer architecture is the combination of microarchitecture and instruction set.
The ISA is about the same as the programming model of a processor seen by an assembler or compiler language programmer. The ISA includes the execution model, processor registers, addresses and data formats among other things. The microarchitecture includes the constituent parts of the processor and how they interconnect and inter-operate to implement the ISA.
The microarchitecture of a machine is usually represented as more or less detailed diagrams describing the interconnections of the various micro-architectural elements of the machine, which can be anything from individual doors and registers to complete arithmetic units (ALUs) and even larger ones elements. These diagrams generally separate the data path (where the data are placed) and the control path (which can be said to control the data).
The ISA is about the same as the programming model of a processor seen by an assembler or compiler language programmer. The ISA includes the execution model, processor registers, addresses and data formats among other things. The microarchitecture includes the constituent parts of the processor and how they interconnect and inter-operate to implement the ISA.
The microarchitecture of a machine is usually represented as more or less detailed diagrams describing the interconnections of the various micro-architectural elements of the machine, which can be anything from individual doors and registers to complete arithmetic units (ALUs) and even larger ones elements. These diagrams generally separate the data path (where the data are placed) and the control path (which can be said to control the data).