Re: LNUM 2008 patch is ready :)

[Graham Henstridge <graham@...>]

On 18/03/2008, at 12:18 AM, Asko Kauppi wrote:

> LNUM_FLOAT	Problematic. Math functions not ANSI C. Limited or no  
> support on Windows.
> 				The only benefit I see is less memory consumption on embedded  
> devices (speedwise, not much difference with LNUM_DOUBLE+LNUM_INT32).
> 				Is anyone actually using 'float' currently, and what is the main  
> reason you do?

Agree with others, float is important from a memory perspective and to  
a lesser extent execution time. As a matter of interest on an ARM9 at  
200MHz the difference between float on double in microsec is:

float op               float  double	
*                        12     15
/                        12     22    very significant
+                        10     13
–                        10     13
(long) to ...            10     10

Graham