Computer Organisation and Architecture - Vol 2 | 26. Execution of Macro Instructions by Abraham | Learn Smarter
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26. Execution of Macro Instructions

This chapter discusses the execution of macro instructions through micro instructions, focusing on the optimization of micro routines for similar macro instructions. The implementation of control signals for conditional jumps, such as 'jump on zero' and 'jump on carry,' is also explored to highlight the concept of implicit and explicit jumps in a micro program context. The ability to optimize common routines for different types of macro instructions is emphasized throughout.

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Sections

  • 26.1

    Introduction To Micro Instructions

    This section introduces micro instructions, emphasizing their role in executing macro instructions and optimizing control signals.

  • 26.2

    Execution Of Macro Instructions

    This section discusses the execution of macro instructions through the use of micro instructions, highlighting how similar macro instructions can be optimized and executed efficiently.

  • 26.2.1

    Execution In Terms Of Micro Instructions

    This section covers how macro instructions are executed through micro instructions, emphasizing the handling of implicit and explicit jumps in microprogramming.

  • 26.2.2

    Jump Instructions

    This section discusses the implementation of jump instructions in micro routines, illustrating how different macro instructions can share similar micro programs with implicit and explicit jumps.

  • 26.3

    Types Of Jumps In Micro Programs

    This section discusses the various types of jumps in micro programs, focusing on explicit and implicit jumps, especially how micro instructions accommodate similar macro instructions.

  • 26.3.1

    Implicit Jumps

    The section discusses implicit jumps within microprogramming, focusing on how common routines can handle similar macro instructions efficiently.

  • 26.3.2

    Explicit Jumps

    This section explores the concept of explicit jumps in microprogramming, focusing on how similar macro instructions can be optimized into common micro routines with implicit jumps.

  • 26.4

    Jump On Zero Execution Flow

    This section discusses the execution flow of the 'Jump on Zero' macro instruction and how it can be optimized using micro routines.

  • 26.4.1

    Operation Of Jump Instruction

    This section explains the operation of jump instructions in microprogramming, emphasizing how macro instructions are executed through microinstructions.

  • 26.4.2

    Zero Flag Handling

    This section discusses the handling of zero flags in micro routines involving macro instructions, specifically focusing on implicit and explicit jumps within computing architectures.

  • 26.5

    Control Signals In Jump Execution

    This section discusses the organization of control signals in the execution of jump instructions in microprogramming.

  • 26.5.1

    Control Signal Mechanism

    This section introduces the control signal mechanism, discussing how micro and macro instructions relate, including examples of execution and optimization strategies.

  • 26.5.2

    Condition Select And Branch Address

    The section discusses how to optimize micro routines for executing macro instructions through condition selection and branching.

  • 26.6

    Comparison Of Macro And Micro Program Execution

    This section explores the execution of macro and micro instructions, highlighting similarities, differences, and optimization opportunities.

  • 26.6.1

    Jump Behavior Variation

    This section discusses the variation in jump behavior in execution of macro instructions, emphasizing the optimization of micro routines.

References

22 part c.pdf

Class Notes

Memorization

What we have learnt

  • Micro instructions can be o...
  • Different types of jumps in...
  • Control signals dictate the...

Final Test

Revision Tests