A Decimal Floating-Point Adder with Decoded Operands and a Decimal Leading-Zero Anticipator
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Bibliographic record
Abstract
The IEEE 754-2008 Standard for Floating-Point Arithmetic was officially approved this year. One of the most important revisions to IEEE 754-1985 is the introduction of decimal floating-point (DFP) formats and operations. Since IEEE 754-1985 was revised, major microprocessor vendors have been working on hardware designs and software libraries for decimal arithmetic. Because the new standard has been approved, many software vendors are planning to adapt the new decimal formats into their applications. Therefore, it is important to investigate efficient algorithms and hardware designs for common DFP arithmetic operations to improve the performance of these applications. This paper presents a novel DFP adder with decoded operands and a decimal leading-zero anticipator (LZA). The DFP adder is based on a previous DFP adder design with several new features, including a new internal format, an improved operand pre-correction stage, and a novel decimal LZA to obtain better timing for decimal addition and subtraction. Synthesis results show that the new DFP adder is roughly 14% faster than the previous design.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it