CSE 3322 Computer Architecture

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CSE 3322 Computer Architecture
Dr. John Patterson
614 NH Office Hours M , W 11 12 noon
817-272-3679
john.patterson_at_uta.edu
Grading Policy
Project 25
Exam I 25
Exam II 25
Exam III 25 Homework
5 add on Turn in start of class no late
homework
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CSE 3322 Computer Architecture
Course WEB SITE crystal.uta.edu/jpatters Read
Chapter 1 Computer Organization and Design
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If we dont succeed, we run the risk of
failure.
Bill Clinton
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CSE 3322 Computer Architecture
The Low Level knowledge needed by High Level
Programmers and Systems Designers
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Five Components of Computers
Memory
Control
Input
Datapath
Output
Processor
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Input Instructions
Memory
Control
Input
CAB
A
Datapath
Output
B
C
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Fetch Instructions
Memory
Control
Input
CAB
ADD A,B
A
Datapath
Output
B
C
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Fetch Operands
Memory
Control
Input
CAB
ADD A,B
A
Datapath
Output
B
C
A,B
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Execute Command
Memory
Control
Input
CAB
ADD A,B
A
Datapath
Output
B
C
AB
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Store Results Output
Memory
Control
Input
CAB
ADD A,B
A
Datapath
Output
B
AB
AB
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Some Architecture Considerations
Integer or Floating Point
Number of Operands
Memory
Control
Input
CAB
ADD A,B
A
Datapath
Output
B
AB
AB
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Architecture Design Criteria

• Performance

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Architecture Design Criteria

• Performance
• Hardware Costs

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Architecture Design Criteria

• Performance
• Hardware Costs Performance

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Architecture Design Criteria

• Performance
• Hardware Costs Performance

• Instruction Complexity

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Architecture Design Criteria

• Performance
• Hardware Costs Performance

• Hardware Software Trade-Offs

• Instruction Complexity

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Architecture Design Criteria

• Performance
• Hardware Costs Performance

• Hardware Software Trade-Offs
• Etc., Etc., Etc.

• Instruction Complexity

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Evolution of Registers in Datapath
Accumulator
Ex 32 Flip-Flops
A
ADD 300 Add the contents of memory location
300 to the Accumulator A Memory300 A
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Evolution of Registers in Datapath
Accumulator
Ex 32 Flip-Flops
A
ADD 300 A Memory300 A
Special Registers were added with special
functions
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Evolution of Registers in Datapath
Accumulator
Ex 32 Flip-Flops
A
ADD 300 A Memory300 A
Models or Abstractions
Special Registers were added with special
functions
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Evolution of Registers in Datapath

• 32 General Purpose Registers

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Evolution of Registers in Datapath

• 32 General Purpose Registers
• Called a Load-Store or Register-Register machine

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Evolution of Registers in Datapath

• 32 General Purpose Registers
• Called a Load-Store or Register-Register machine
• All Registers can be used for any purpose

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Evolution of Registers in Datapath

• 32 General Purpose Registers
• Called a Load-Store or Register-Register machine
• All Registers can be used for any purpose
• Ex Add any two Registers and put the result in a
  third Register

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Instruction Set Architecture

• Consists of All of the Instructions and How Each
  Works

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Instruction Set Architecture

• Consists of All of the Instructions and How Each
  Works

Models or Abstractions
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Instruction Set Architecture

• Consists of All of the Instructions and How Each
  Works
• Is the Interface Between Hardware and Software

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Instruction Set Architecture

• Consists of All of the Instructions and How Each
  Works
• Is the Interface Between Hardware and Software
• Defines the Functionality

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Instruction Set Architecture

• Consists of All of the Instructions and How Each
  Works
• Is the Interface Between Hardware and Software
• Defines the Functionality
• Determines the Inherent Performance

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Instruction Set Architecture

• Consists of All of the Instructions and How Each
  Works
• Is the Interface Between Hardware and Software
• Defines the Functionality
• Determines the Inherent Performance
• Determines the Software Compatibility

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Software Hierarchical Layers
Machine Instruction
101110001100010000001
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Software Hierarchical Layers
Assembly Language add 2, 5,2
Assembler
Machine Instruction
101110001100010000001
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Software Hierarchical Layers
High Level Language g h A8
Compiler
Assembly Language add 2, 5,2
Assembler
Machine Instruction
101110001100010000001
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Software Hierarchical Layers
High Level Language g h A8
Models or Abstractions
Compiler
Assembly Language add 2, 5, 2
Assembler
Machine Instruction
101110001100010000001