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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

8.2. Representations of Floating-Point Values

In Chapter 2, we introduced the IEEE representations for single- and double-precision floating-point values using 32 and 64 bits for storage, respectively. Since these representations are an industry standard, all modern computer systems store floating-point values in memory in the same manner, respecting big- or little-endian ordering.

The IEEE representations partition an information unit into fields for sign, exponent, and significand. The exponent is stored with an additive bias. The significand consists of an implicit binary 1 followed by a binary fraction (Section 2.5.2).

8.2.1. IEEE Special Values

Before we consider floating-point instructions, we need to provide more detail about how the IEEE ...

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Publisher Resources

ISBN: 0131013726Purchase book