Method and apparatus to perform floating point operations

A non-transitory computer-readable medium comprising instructions that, when executed by a processing device, performs a method of subtracting floating-point numbers, which comprises:

• determining whether a first sign associated with a first floating-point number is unequal to a second sign associated with a second floating-point number;
• determining whether a first exponent associated with the first floating-point number is less than a second exponent associated with the second floating-point number;
• negating a first mantissa associated with the first floating-point number in response to determining that the first sign is unequal to the second sign and determining that the first exponent is less than the second exponent;
• and
• adding the first mantissa to a second mantissa associated with the second floating-point number in response to determining that the first sign is unequal to the second sign and determining that the first exponent is less than the second exponent.

A device to subtract floating-point numbers, which comprises:

• at least one processing device, the at least one processing device being configured:
• to determine whether a first sign associated with a first floating-point number is unequal to a second sign associated with a second floating-point number;
• to determine whether a first exponent associated with the first floating-point number is less than a second exponent associated with the second floating-point number;
• to negate a first mantissa associated with the first floating-point number in response to determining that the first sign is unequal to the second sign and determining that the first exponent is less than the second exponent;
• and
• to add the first mantissa to a second mantissa associated with the second floating-point number in response to determining that the first sign is unequal to the second sign and determining that the first exponent is less than the second exponent, thereby subtracting the first floating-point number from the second floating-point number.