Thanks -- that's good to know.
Best,
luke
On Fri, 23 Feb 2007, Jeffrey J. Hallman wrote:
> The 64 bit version of VisualWorks Smalltalk has an immediate ShortDouble,
> which sacrifices two bits of exponent for a tag. It thus has the same
> precision as an IEEE double, but one fourth as much range. Overflows
> automatically get promoted to ordinary Double's, which are pointers to objects
> holding real IEEE doubles.
>
> Luke Tierney <[EMAIL PROTECTED]> writes:
>> Systems that
>> support integer scalars often represent them as immediate values within
>> pointers by sacrificing one or two bits of precision in the integers,
>> but that doesn't work for double precision floats except possibly on
>> 64-bit systems.
>
>
--
Luke Tierney
Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: [EMAIL PROTECTED]
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
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