Difference between revisions of "Template:Densely packed decimal"

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*{{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]] |month=May |year=2002 |doi=10.1049/ip-cdt:20020407}}
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*{{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]] |month=May |year=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}}
 
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Revision as of 10:34, 31 March 2011

Densely packed decimal encoding rules[1]
b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 d2 d1 d0 Values encoded Digit pattern
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 d e f 1 0 1 i 0abc 100f 0dei (0–7) (8–9) (0–7)
a b c d e f 1 1 0 i 100c 0def 0abi (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
a b c 0 1 f 1 1 1 i 100c 0abf 100i (8–9) (0–7) (8–9)
a b c 0 0 f 1 1 1 i 100c 100f 0abi (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

  1. Cowlishaw, M. F. (2000-10-03). "Summary of Densely Packed Decimal encoding". Retrieved 2008-09-10.