Jerome Coonen

C-Labs

This paper describes C programs for the support functions copysign(x,y), logb(x), scalb(x,n), nextafter(x,y), finite(x), and isnan(x) recommended in the Appendix to the IEEE Standard for Binary Floating-Point Arithmetic. In the case of logb, the modified definition given in the later IEEE Standard for Radix-Independent Floating-Point Arithmetic is...

The Microprocessor Standards Committee of the IEEE Computer Society sponsors two groups drafting proposed standard for floating-point arithmetic. The first, Task P754, reported Draft 10.0 of a Proposed Standard for Binary Floating-point Arithmetic out of committee in December. 1982. That document is now a de facto standard and is progressing slowly...

The Microprocessor Standards Committee of the IEEE Computer Society sponsors two groups drafting proposed standards for floating-point arithmetic. The first, Task P754, reported Draft 10.0 of a Proposed Standard for Binary Floating-point Arithmetic out of committee in December, 1982. The document is now a de facto standard and is progressing slowly...

Although there have been misconceptions about it, gradual underflow fits naturally into the proposed standard and leads to simple, general statements about the arithmetic.

This guide to an IEEE draft standard provides practical algorithms for floating-point arithmetic operations and suggests the hardware/software mix for handling exceptions.

This standard is a product of the Floating Point Working Group of the Microprocessor Standards Subcommittee of the IEEE Computer Society Computer Standards Committee. It is intended that the standard embody the essence of "Specifications For a Proposed Standard for Floating Point Arithmetic" by Jerome Coonen.

A standard for binary floating point arithmetic is briefly described. There is a very real possibility that it will be adopted by many manufacturers and implemented on a wide range of computers.