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 is from 16 to 16 (approx. 5.39761 × 10 to 7.237005 × 10).

单词	Hexadecimal floating point
释义	Hexadecimal floating point 英语百科 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 is from 16 to 16 (approx. 5.39761 × 10 to 7.237005 × 10).
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Hexadecimal floating point

IBM Floating Point Architecture