The IEEE Standard for Radix-Independent Floating-Point Arithmetic (IEEE 854), was the first
Institute of Electrical and Electronics Engineers (IEEE)
international standard for
floating-point arithmetic with
radices other than 2, including radix 10. IEEE 854 did not specify any data formats, whereas IEEE 754-1985 did specify formats for binary (radix 2) floating point. IEEE 754-1985 and IEEE 854-1987 were both superseded in 2008 by
IEEE 754-2008
The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ...
, which specifies floating-point arithmetic for both radix 2 (
binary
Binary may refer to:
Science and technology Mathematics
* Binary number, a representation of numbers using only two digits (0 and 1)
* Binary function, a function that takes two arguments
* Binary operation, a mathematical operation that ta ...
) and radix 10 (
decimal), and specifies two alternative formats for radix 10 floating-point values, and even more so with
IEEE 754-2019
The IEEE Standard for Floating-Point Arithmetic (IEEE 754) is a technical standard for floating-point arithmetic established in 1985 by the Institute of Electrical and Electronics Engineers (IEEE). The standard addressed many problems found in ...
.
IEEE 754-2008 also had many other updates to the IEEE floating-point standardisation.
IEEE 854 arithmetic was first commercially implemented in the
HP-71B
The HP-71B was a hand-held computer or calculator programmable in BASIC, made by Hewlett-Packard from 1984 to 1989.
Description
Smaller and less expensive (US$595 $525 in 1984 ≈ $990 in 2005 (seInflation Conversion Factors for Dollars) MSR ...
handheld computer, which used decimal floating point with 12 digits of significand, and an exponent range of ±499, with a 15 digit significand used for intermediate results.
References
External links
IEEE 854-1987nbsp;– History and minutes
{{DEFAULTSORT:Ieee 854-1987
Computer arithmetic
IEEE standards
Floating point