Intel Agilex User Manual page 26

Floating- Exception Flags
Point
Format
fp32_mult_inexact
fp32_mult_invalid
fp32_adder_overflow
fp32_adder_underflow
fp32_adder_inexact
fp32_adder_invalid
Half
precision
fp16_mult_top_overflow
fp16_mult_bot_overflow
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Intel Agilex Variable Precision DSP Blocks User Guide
26
2. Intel Agilex Variable Precision DSP Blocks Architecture
Width
1: If the multiplier result is a smaller value than the minimum
representable non-zero absolute value and the result is flushed to
zero.
0: If the multiplier result is a larger than the minimum
representable value.
This signal is not available in Adder or Subtract Mode.
1 This signal indicates if the multiplier result is not accurately
represented.
1: If the multiplier result is:
• a rounded value
• a smaller value than the minimum representable value or
• a larger value than the maximum representable value.
0: If the multiplier result does not meet any of the criteria above.
This signal is not available in Adder or Subtract Mode.
1 This signal indicates if the multiplier operation is ill-defined and
produces an invalid result.
1: If the multiplier result is invalid and cast to qNaN.
0: If the multiplier result is not an invalid number.
This signal is not available in Adder or Subtract Mode.
Addition
1 This signal indicates if the adder result is a larger value than the
maximum representable value.
1: If the adder result is a larger value than the maximum
presentable value and the result is cast to infinity.
0: If the adder result is not larger than the maximum presentable
value.
This signal is not available in Multiplication Mode.
1 This signal indicates if the adder result is a smaller value than the
minimum presentable value.
1: If the adder result is a smaller value than the minimum
representable non-zero absolute value and the result is flushed to
zero.
0: If the adder result is a larger than the minimum representable
value.
This signal is not available in Multiplication Mode.
1 This signal indicates
represented.
1: If the adder result is:
• a rounded value
• a smaller value than the minimum representable value or
• a larger value than the maximum representable value.
0: If the adder result does not meet any of the criteria above.
This signal is not available in Multiplication Mode.
1 This signal indicates if the adder operation is ill-defined and
produces an invalid result.
1: If the adder result is invalid and cast to qNaN.
0: If the adder result is not an invalid number.
This signal is not available in Multiplication Mode.
Multiplication
1 This signal indicates if the top or bottom multiplier result is a larger
value than the maximum presentable value.
UG-20213 | 2019.04.02
Description
if the adder result is not
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accurately