IBM Floating Point Architecture
IBM System/360 computers, and subsequent machines based on that architecture (mainframes), support a hexadecimal floating-point format.
In comparison to IEEE 754 floating-point, the IBM floating-point format has a longer significand, and a shorter exponent. All IBM floating-point formats have 7 bits of exponent with a bias of 64. The normalized range of representable numbers are from 16-65 to 1663 (approx. 5.39761 × 10-79 to 7.237005 × 1075).
The number is represented as the following formula: (-1)sign × 0.significand × 16exponent-64
Read more about IBM Floating Point Architecture: Single-precision 32-bit, Double-precision 64-bit, Extended-precision 128-bit, Arithmetic Operations, IEEE 754 On IBM Mainframes, Special Uses, Systems Which Use Base-16 Excess-64 Floating-Point Format
Famous quotes containing the words floating, point and/or architecture:
“The true reformer does not want time, nor money, nor coöperation, nor advice. What is time but the stuff delay is made of? And depend upon it, our virtue will not live on the interest of our money. He expects no income, but outgoes; so soon as we begin to count the cost, the cost begins. And as for advice, the information floating in the atmosphere of society is as evanescent and unserviceable to him as gossamer for clubs of Hercules.”
—Henry David Thoreau (1817–1862)
“In order to really enjoy a dog, one doesn’t merely try to train him to be semihuman. The point of it is to open oneself to the possibility of becoming partly a dog.”
—Edward Hoagland (b. 1932)
“The principle of the Gothic architecture is infinity made imaginable.”
—Samuel Taylor Coleridge (1772–1834)