Podcast
Questions and Answers
What is the primary function of the Arithmetic Logic Unit (ALU) in a processor?
What is the primary function of the Arithmetic Logic Unit (ALU) in a processor?
What is the main issue with instructions having very different execution times or phases in a production line?
What is the main issue with instructions having very different execution times or phases in a production line?
What is the key component that determines the instructions that a processor can execute?
What is the key component that determines the instructions that a processor can execute?
What is the first phase of executing an instruction in a processor?
What is the first phase of executing an instruction in a processor?
Signup and view all the answers
What was the idea presented by Ditzel and Patterson in the early 1980s?
What was the idea presented by Ditzel and Patterson in the early 1980s?
Signup and view all the answers
What was the response of some designers related to VAX in the early 1980s?
What was the response of some designers related to VAX in the early 1980s?
Signup and view all the answers
What is the primary responsibility of the Control Unit in a processor?
What is the primary responsibility of the Control Unit in a processor?
Signup and view all the answers
What is the relationship between the Instruction Set Architecture (ISA) and the design of the control and datapaths?
What is the relationship between the Instruction Set Architecture (ISA) and the design of the control and datapaths?
Signup and view all the answers
What is a characteristic of RISC computers?
What is a characteristic of RISC computers?
Signup and view all the answers
What were the three major seminal projects for RISC computers?
What were the three major seminal projects for RISC computers?
Signup and view all the answers
What is the term for the component that connects the processor to the outside world?
What is the term for the component that connects the processor to the outside world?
Signup and view all the answers
What was the idea of High-Level Language Computer Architecture (HLLCA)?
What was the idea of High-Level Language Computer Architecture (HLLCA)?
Signup and view all the answers
Why might creating powerful instructions that solve common problems be less desirable?
Why might creating powerful instructions that solve common problems be less desirable?
Signup and view all the answers
What is a benefit of using simple instructions with small differences in phases execution time?
What is a benefit of using simple instructions with small differences in phases execution time?
Signup and view all the answers
What is a primary characteristic of RISC ( Reduced Instruction Set Computing) architectures?
What is a primary characteristic of RISC ( Reduced Instruction Set Computing) architectures?
Signup and view all the answers
What is a key advantage of CISC (Complex Instruction Set Computing) architectures?
What is a key advantage of CISC (Complex Instruction Set Computing) architectures?
Signup and view all the answers
What is a main goal of instruction design in RISC architectures?
What is a main goal of instruction design in RISC architectures?
Signup and view all the answers
What is a characteristic of CISC architectures?
What is a characteristic of CISC architectures?
Signup and view all the answers
What is a disadvantage of RISC architectures?
What is a disadvantage of RISC architectures?
Signup and view all the answers
What is a key difference between RISC and CISC architectures?
What is a key difference between RISC and CISC architectures?
Signup and view all the answers
What is a main difference in instruction design between RISC and CISC architectures?
What is a main difference in instruction design between RISC and CISC architectures?
Signup and view all the answers
Study Notes
Processor Operation
- The processor consists of five basic parts: arithmetic logic unit (part of datapath), program control unit (control path), input equipment, output equipment, and memory.
Instruction Set Architecture
- Instruction set architecture defines the processor's instructions, which lead to the design of control and datapaths.
- The instruction set architecture approach can be classified into RISC (Reduced Instruction Set Computer) and CISC (Complex Instruction Set Computer).
RISC vs. CISC
- The idea of high-level language computer architecture (HLLCA) emerged in the late 1970s.
- In the early 1980s, Ditzel and Patterson argued that simpler architectures would be the best approach, and presented the idea of RISC.
- Simultaneously, designers related to VAX refuted this idea and continued to build computers based on CISC.
- RISC computers had three major seminal projects: Berkeley RISC processor, Stanford MIPS processor, and IBM 801.
Control Unit
- The execution of an instruction can be split into different phases: operation code fetch, operation code decode, operands fetch, effective instruction execution, and CISC.
- Instructions with very different execution times or with very different numbers of phases are not suitable for a production line (pipeline).
Processor with Accumulator and Microprogram
- The processor operation involves control for single cycle datapath (SCD).
- SCD involves control signals, instruction fetch unit, and instruction execution during add, subtract, load, store, conditional branch, and jump operations.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers the components of datapath and control path in computer organization, including arithmetic logic unit, program control unit, input equipment, and output equipment.
