Fast floating-point to integer conversion

Details Fast floating-point to integer conversion Fast floating-point to integer conversion

1995-09-29

1998-06-09

Ngo, Chuong Dinh

Boots, shoes, and leggings

36474801, 364769, G06F 700, G06F 738

Patent

active

057645485

ABSTRACT:
Input signals in floating-point format are converted into output signals in integer format while handling saturation cases appropriately. Saturation exists when the value of an input signal is outside the output range. Saturation cases are detected by invoking an integer comparison instruction using signals in floating-point format as inputs to tile integer comparison instruction. When implemented in software on processors such as the Intel.RTM. Pentium.TM. processor, using an integer comparison instruction to compare signals in floating-point format provides more efficient signal conversion than conventional schemes that use a floating-point comparison instruction to compare floating-point signals.

REFERENCES:
patent: 5257215 (1993-10-01), Poon
patent: 5274708 (1993-12-01), Fields et al.
patent: 5504697 (1996-04-01), Ishida
patent: 5528741 (1996-06-01), Lucas
patent: 5561615 (1996-10-01), Kuo et al.

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