DRAFT IEEE Standard for Binary Floating-Point Arithmetic - Sonic.net

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DRAFT IEEE Standard for Floating-Point Arithmetic – 2003 August 12 10:20 4. Provide direct support for a. Execution-time diagnosis of anomalies b. Smoother handling of exceptions c. Interval arithmetic at a reasonable cost 5. Provide for development of a. Standard elementary functions such as exp and cos b. Very high precision (multiword) arithmetic c. Coupling of numerical and symbolic algebraic computation 6. Enable rather than preclude further refinements and extensions. Copyright © 2003 by the Institute of Electrical and Electronics Engineers, Inc. This document is an unapproved draft of a proposed IEEE-SA Standard - USE AT YOUR OWN RISK. See statement on page 1. Page 8
DRAFT IEEE Standard for Floating-Point Arithmetic – 2003 August 12 10:20 An American National Standard IEEE Standard for Binary Floating-Point Arithmetic 1. Scope 1.1. Implementation Objectives SCOPE: This standard specifies formats and methods for binary and decimal floating-point arithmetic in computer programming environments: standard and extended functions in 32-, 64-, and 128-bit basic formats single, double, quad §Q, and extended precision formats, and recommends formats for data interchange. Exception conditions are defined and default handling of these conditions is specified. §4 It is intended that an implementation of a floating-point system conforming to this standard can be realized entirely in software, entirely in hardware, or in any combination of software and hardware. It is the environment the programmer or user of the system sees that conforms or fails to conform to this standard. Hardware components that require software support to conform shall not be said to conform apart from such software. 1.2. Inclusions This standard specifies 1. Basic and extended floating-point number formats 2. Add, subtract, multiply, divide, fused multiply-add, square root, remainder, and compare operations 3. Conversions between integer and floating-point formats 4. Conversions between different floating-point formats 5. Conversions between basic format floating-point numbers and external decimal formats decimal strings 6. Floating-point exceptions and their handling, including nonnumbers (NaNs) Copyright © 2003 by the Institute of Electrical and Electronics Engineers, Inc. This document is an unapproved draft of a proposed IEEE-SA Standard - USE AT YOUR OWN RISK. See statement on page 1. Page 9
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DRAFT IEEE Standard for Binary Floating-Point Arithmetic - Sonic.net

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