[Info-vax] New VSI Roadmap (yipee!)

[David Froble]

John Reagan wrote:
> On Sunday, March 1, 2015 at 10:07:48 AM UTC-5, Stephen Hoffman wrote:
>> On 2015-03-01 04:33:55 +0000, John Reagan said:
> 
>>> Rounding floating point to certain number of decimal places?  That 
>>> doesn't make sense.  Floating numbers are exact.  1.23 isn't really 
>>> 1.23 but something close to it.  I don't know what a float-to-float 
>>> rounding does?
>> Z = 1.2345678
>> Z = FRound( Z, 2%)
>> Z = 1.23
>> Z = 1.2378
>> Z = FRound( Z, 2%)
>> Z = 1.24
>>
> 
> I know.  You want to throw away fractions of a penny or pick up fractions of a penny.  If you want to "create" money, go mine for Bitcoin.
> 
> The reality is that the routine overhead is small compared to the floating/integer operations involved.  There is no simple instruction sequence to do that (since it isn't something people do with normal floating point data), it will always be slow.  I would think that GEM would inline that routine if it was defined in the same module.
> 
> 

We did in-line the code in a program that was making heavy usage, and 
the resultant decrease in run time was very significant.

Thus the request for a native round capability in Basic.

You did ask what was desired, right?