Difference between revisions of "Template:Densely packed decimal"
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imported>Verdy p (color-coding the cells does not help identifying the weights of DPD bits; renaming them helps better (but does *not* change the encoding)) |
imported>Jonesey95 m (Fixing deprecated month parameter using AutoEd) |
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{{reflist}} | {{reflist}} | ||
− | *{{cite journal |last=Cowlishaw |first=M. F. |authorlink=Mike Cowlishaw |title=Densely packed decimal encoding |journal=IEE Proceedings – Computers and Digital Techniques |issn=1350-2387 |volume=149 |issue=3 |pages=102–104 |publisher=[[Institution of Electrical Engineers]] | | + | *{{cite journal |last=Cowlishaw |first=M. F. |authorlink=Mike Cowlishaw |title=Densely packed decimal encoding |journal=IEE Proceedings – Computers and Digital Techniques |issn=1350-2387 |volume=149 |issue=3 |pages=102–104 |publisher=[[Institution of Electrical Engineers]] | date=May 2002 |doi=10.1049/ip-cdt:20020407}} |
*{{cite web |url=http://home.hetnet.nl/~jhm.bonten/computers/bitsandbytes/wordsizes/ibmpde.htm#dense |title=Packed Decimal Encoding IEEE-754r |first=J.H.M. |last=Bonten |archiveurl=http://web.archive.org/web/20070824053303/http://home.hetnet.nl/mr_1/81/jhm.bonten/computers/bitsandbytes/wordsizes/ibmpde.htm |archivedate=2007-08-24 |accessdate=2008-09-10}} | *{{cite web |url=http://home.hetnet.nl/~jhm.bonten/computers/bitsandbytes/wordsizes/ibmpde.htm#dense |title=Packed Decimal Encoding IEEE-754r |first=J.H.M. |last=Bonten |archiveurl=http://web.archive.org/web/20070824053303/http://home.hetnet.nl/mr_1/81/jhm.bonten/computers/bitsandbytes/wordsizes/ibmpde.htm |archivedate=2007-08-24 |accessdate=2008-09-10}} | ||
</noinclude> | </noinclude> |
Revision as of 07:10, 18 January 2014
DPD encoded value | Decimal digits | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
b9 | b8 | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | d2 | d1 | d0 | Values encoded | Description | |
a | b | c | d | e | f | 0 | g | h | i | 0abc | 0def | 0ghi | (0–7) (0–7) (0–7) | Three small digits | |
a | b | c | d | e | f | 1 | 0 | 0 | i | 0abc | 0def | 100i | (0–7) (0–7) (8–9) | Two small digits, one large | |
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) | ||
a | b | c | 1 | 0 | f | 1 | 1 | 1 | i | 0abc | 100f | 100i | (0–7) (8–9) (8–9) | One small digit, two large | |
d | e | c | 0 | 1 | f | 1 | 1 | 1 | i | 100c | 0def | 100i | (8–9) (0–7) (8–9) | ||
g | h | c | 0 | 0 | f | 1 | 1 | 1 | i | 100c | 100f | 0ghi | (8–9) (8–9) (0–7) | ||
x | x | c | 1 | 1 | f | 1 | 1 | 1 | i | 100c | 100f | 100i | (8–9) (8–9) (8–9) | Three large digits |
Information
This is for transclusion in Densely packed decimal, Decimal32, Decimal64 and Decimal128. Only the table, above, will be included.
References
- ↑ Cowlishaw, M. F. (2000-10-03). "Summary of Densely Packed Decimal encoding". Retrieved 2008-09-10.
- Cowlishaw, M. F. (May 2002). "Densely packed decimal encoding". IEE Proceedings – Computers and Digital Techniques. Institution of Electrical Engineers. 149 (3): 102–104. doi:10.1049/ip-cdt:20020407. ISSN 1350-2387.
- Bonten, J.H.M. "Packed Decimal Encoding IEEE-754r". Archived from the original on 2007-08-24. Retrieved 2008-09-10.