DSP_MAC() function

[torrescma]

Hi all

I have tried to use DSP_MAC() to multiply and accumulate but the result of the operation is not correct, I tried a simple math

a = a + b*c

where a is accumulator, b and c operands. But the results is double the correct answer

Code: Select all

A = dsp_clr();
A = dsp_mac(A,1,1,0,0,0,0,0,0,0);

The correct answer is a = 0 + 1*1 = 1, but it returns 2. In every operation it gives double, like adding twice.

Any idea?

Thanks

[stefan.filipovic]

Hi,

I believe that you have been answered here:
viewtopic.php?f=101&t=75471

Kind regards,