Re: [Flashforth-devel] 70 MIPS on a dspic33ep512mc806?

[Mikael N. <mik...@fl...>]

On 29.06.2016 19:38, Bob Edwards wrote:
> Mikael, will I have to fix the cpu 'LOAD' word as well which uses
> timer3?  I notice 'mov     #FCY/3126, W2' in the definition - how is 
> the
> magic number 3126 derived, please?

Timer 3 is clocked with a prescaler of 8 so does not overflow even at 
70 MIPS.

The magic constant just scales the load accumulator result to 100 % at 
full load.

just say

decimal busy 256 ms load .

It should give 100 as result.
If not, you can adjust the magic.

BR Mikael