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    Devry
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Category > Programming Posted 26 May 2017 My Price 7.00

#include

Here are some sample functions that work with complex data and that call some of the associated library functions.

#include <complex.h>

double c_imag(double complex x) {

    return cimag(x);

}

double complex c_sub(double complex x, double complex y) {

          return x - y;

}

When compiled, GCC generates the following assembly code for these functions:

   double c_imag(double complex)

   c_imag:

        movapd    %xmm1, %xmm0

        ret

 double c_real(double complex x)

 c_real:

      rep; ret

 double complex c_sub(double complex x, double complex y)

 c_sub:

         subsd    %xmm2, %xmm0

         subsd    %xmm3, %xmm1

         ret

Based on these examples, determine the following:

A. How are complex arguments passed to  a function?

B. How are complex values returned from a function?

Answers

ComputerScienceExpert
(11)
Status NEW Posted 26 May 2017 08:05 AM My Price 7.00

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