1.5.2. Special Case Numbers - The following table lists the special case numbers defined by the IEEE-754 standard and the data bit representations. - 2025-12-15

Floating-Point Intel FPGA IP User Guide
Version
24.2
The following table lists the special case numbers defined by the IEEE-754 standard and the data bit representations.
Table 5.  Special Case Numbers in IEEE-754 Representation 
Meaning Sign Field Exponent Field Mantissa Field
Zero Don’t care All 0’s All 0’s
Positive Denormalized 0 All 0’s Non-zero
Negative Denormalized 1 All 0’s Non-zero
Positive Infinity 0 All 1’s All 0’s
Negative Infinity 1 All 1’s All 0’s
Not-a-Number (NaN) Don’t care All 1’s Non-zero