Rev. 1.50, 10/04, page 102 of 448
6.2.3 Denormalized Numbers
For a denormalized number floating-point value, the exponent field is expressed as 0, and the
fraction field as a non-zero value.
When the DN bit in FPSCR of the FPU is 1, a denormalized number (source operand or operation
result) is always positive or negative zero in a floating-point operation that generates a value (an
operation other than transfer instructions between registers, FNEG, or FABS).
When the DN bit in FPSCR is 0, a denormalized number (source operand or operation result) is
processed as it is. See section 10, Instruction Descriptions for details of floating-point operations
when a denormalized number is input.
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