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Execution of an instruction (the instruction cycle) has a number of smaller units. —Fetch, indirect, execute, interrupt, etc. Each part of the cycle has a number of smaller steps called micro-operations. —Discussed extensive in pipelining. Micro-ops are the fundamental or atomic operations of the processor.
The Central Processing Unit (CPU) in a microcomputer system is typically a micro-processor unit (MPU) or core. The CPU is where instructions become signals and hardware actions that command the microcomputer operation. The minimal list of components that define the architecture of a CPU include the following: • Hardware Components:
Systems I: Computer Organization and Architecture. Lecture 10: Microprogrammed Control. Microprogramming. The control unit is responsible for initiating the sequence of microoperations that comprise instructions. When these control signals are generated by hardware, the control unit is hardwired.
Computer Organization and Architecture. What is Computer Organization? Electronic Devices. Desired Behavior. ... a very wide semantic gap between the intended behavior and the workings of the underlying electronic devices that will actually do all the work.
Principles of Operation defines computer architecture which includes: • instruction set • instruction format • operation codes • addressing modes • all registers and memor locations that may be directly manipulated or tested by a machine language program • formats for data representation Machine Implementation was defined as the actual syste...
Microoperations. The instructions are stored in computer memory in the same manner that data is stored. The control unit interprets these instructions and uses the operations code to determine the sequences of microoperations that must be performed to execute the instruction.
Synthesis Lectures on Computer Architecture publishes 50- to 100-page publications on topics pertaining to the science and art of designing, analyzing, selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals.
