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On VFP 4000 sums are not reliable!
Message
De
16/12/2005 16:30:55
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9
Database:
Visual FoxPro
Divers
Thread ID:
01078586
Message ID:
01078813
Vues:
10
>>N(9,6) is a base10 value...
>
>stored in a Base2 representation.

Sorin

The physical representation has not meant.
If you known information theory,
what counts they are the used symbols,
and in N(9,6) 10 numerical symbols and two format symbols are used.

In fact the VM of VFP has to convert N(9,6) in a float IEEE
to be able to use the cpu directly.

Some CPUs IBM (360) of once had instructions
native to directly effect BCD calculations.

If you read two N() directly ( it is a ASCII string )
and execute the sum with a routine, digit by digit
you have a base10 virtual cpu over a base2 cpu.
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