Template:Densely packed decimal: Difference between revisions
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Latest revision as of 07:08, 8 August 2023
| DPD encoded value | Decimal digits | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Code space (1024 states) | b9 | b8 | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | d2 | d1 | d0 | Values encoded | Description | Occurrences (1000 states) | |
| 50.0% (512 states) | a | b | c | d | e | f | 0 | g | h | i | 0abc | 0def | 0ghi | (0–7) (0–7) (0–7) | Three small digits | 51.2% (512 states) | |
| 37.5% (384 states) | a | b | c | d | e | f | 1 | 0 | 0 | i | 0abc | 0def | 100i | (0–7) (0–7) (8–9) | Two small digits, one large |
38.4% (384 states) | |
| a | b | c | g | h | f | 1 | 0 | 1 | i | 0abc | 100f | 0ghi | (0–7) (8–9) (0–7) | ||||
| g | h | c | d | e | f | 1 | 1 | 0 | i | 100c | 0def | 0ghi | (8–9) (0–7) (0–7) | ||||
| 9.375% (96 states) | g | h | c | 0 | 0 | f | 1 | 1 | 1 | i | 100c | 100f | 0ghi | (8–9) (8–9) (0–7) | One small digit, two large |
9.6% (96 states) | |
| d | e | c | 0 | 1 | f | 1 | 1 | 1 | i | 100c | 0def | 100i | (8–9) (0–7) (8–9) | ||||
| a | b | c | 1 | 0 | f | 1 | 1 | 1 | i | 0abc | 100f | 100i | (0–7) (8–9) (8–9) | ||||
| 3.125% (32 states, 8 used) | x | x | c | 1 | 1 | f | 1 | 1 | 1 | i | 100c | 100f | 100i | (8–9) (8–9) (8–9) | Three large digits, bits b9 and b8 are don't care | 0.8% (8 states) | |
Information
This is for transclusion in Densely packed decimal, Decimal32, Decimal64 and Decimal128. Only the table, above, will be included.
References
- ↑ Cowlishaw, Michael Frederic (2007-02-13) [2000-10-03]. "A Summary of Densely Packed Decimal encoding". IBM. Archived from the original on 2015-09-24. Retrieved 2016-02-07.
- Cowlishaw, Michael Frederic (May 2002). "Densely Packed Decimal Encoding". IEE Proceedings – Computers and Digital Techniques. Institution of Electrical Engineers (IEE). 149 (3): 102–104. doi:10.1049/ip-cdt:20020407. ISSN 1350-2387. Retrieved 2016-02-07.
- Bonten, Jo H. M. (2007-07-18) [2006-10-05]. "Packed Decimal Encoding IEEE-754r". Archived from the original on 2007-08-24. Retrieved 2008-09-10.
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