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Itanium® Architecture for Programmers: Understanding 64-Bit Processors and EPIC Principles
book

Itanium® Architecture for Programmers: Understanding 64-Bit Processors and EPIC Principles

by James S. Evans - Lawrence University, Gregory L. Trimper - viika
April 2003
Intermediate to advanced content levelIntermediate to advanced
576 pages
15h 13m
English
Pearson
Content preview from Itanium® Architecture for Programmers: Understanding 64-Bit Processors and EPIC Principles

2.2. Instruction Execution

A computer is controlled by a program, which is composed of sequences of instructions. At the assembly language level, each instruction specifies one fundamental operation to be performed by the CPU. Instructions can be classified into six basic categories:

  1. Data movement instructions move data from one location in memory to another, between memory and registers, among registers, or between memory and I/O devices.

  2. Arithmetic instructions perform various mathematical operations, such as the addition of one quantity to another.

  3. Logical instructions perform Boolean operations, such as AND, OR, and EXCLUSIVE OR.

  4. Comparative instructions examine a value, or compare values, as part of setting up decisions for conditional program ...

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Publisher Resources

ISBN: 0131013726Purchase book