Floating point and integer number conversions in a floating poin

Details Floating point and integer number conversions in a floating poin Floating point and integer number conversions in a floating poin

1992-03-31

1993-10-26

Nguyen, Long T.

Boots, shoes, and leggings

364748, G06F 738

Patent

active

052572153

ABSTRACT:
A floating point number which includes a mantissa field, an exponent field, and a sign field is converted to an integer of n-bit size including a sign bit. The sign field is examined to determine if the floating point number is a positive or negative number. The mantissa field is shifted right to thereby denormalize the mantissa resulting in a shifted mantissa. If the floating point number is a negative number, zero is subtracted from the shifted mantissa to produce a result mantissa field that is a two's complement number. Otherwise, zero is added to the shifted mantissa to produce a result mantissa field. Overflow or underflow of the result mantissa field with respect to the integer of n-bit size is detected and the sign bit is set appropriately to reflect the fact that the sign field of the floating point number is a negative or positive number.

REFERENCES:
patent: 4805128 (1989-02-01), Nelsen et al.

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