IEEE 754-2008 Decimal Floating-Point for Intel

The New IEEE-754 Standard for Floating Point Arithmetic

The IEEE-754 standard for Floating Point Arithmetic[1] that was in effect at the time of this seminar was adopted in 1985. That standard was intended for hardware implementation, although provisions were made for software implementation for operations. In addition to required operations, an appendix of recommended functions was also specified. Default exception handling was specified, and provi...

Reference Software Implementation of the Ieee 754r Decimal Floating-point Arithmetic

The IEEE Standard 754-1985 for Binary Floating-Point Arithmetic [1] is being revised [2], and an important addition to the current text is the definition of decimal floating-point arithmetic [3]. This is aimed mainly to provide a robust, reliable framework for financial applications that are often subject to legal requirements concerning rounding and precision of the results in the areas of ban...

Easy Accurate Reading and Writing of Floating-Point Numbers

Presented here are algorithms for converting between (decimal) scientific-notation and (binary) IEEE-754 double-precision floating-point numbers. These algorithms are much simpler than those previously published. The values are stable under repeated conversions between the formats. The scientific representations generated have only the minimum number of mantissa digits needed to convert back to...

Software implementation of the IEEE 754R decimal floating-point arithmetic

Panel: Revisions to the IEEE 754 Standard for Floating-Point Arithmetic

Almost twenty years ago the IEEE 754 binary floating-point standard was adopted. Since then almost every microprocessor as well as many programming languages have defined the floating-point arithmetic to be IEEE 754 compliant. From the many years experience in implementing the standard in hardware and writing floating-point programs, there have been numerous suggestions for revisions. All IEEE ...