help with inline Assembler

[llueveYescampa]

Hi all,

A couple of  years ago, working with OpenWatcom for Windows, I was
able to wrote the inline assembly code shown below. I spent a while
reading and by trail an error I made it work.

I was trying to test the efficiency of the "inner_product()" function
in C++.

Now I am working in Linux and I would like to compile it with g++.

Is the inline assembly of g++ similar?
Can some of this code be reused in g++?

I like to thank all of you in advance for your comments.

Edgar Black

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double dot_product(double *array1, double *array1End, double *array2)

{

   double result;

   const unsigned int n = array1End-array1;



     _asm {

        fldz

        mov     ecx, n

        cmp     ecx,0

        jz      finish

        mov     esi,array1

        mov     edi,array2

more:

        fld     qword ptr [esi]

        fmul    qword ptr [edi]

        faddp   st(1),st(0)

        add     esi,8

        add     edi,8

        loop    more

finish:

        fstp    qword ptr result

     } // end asm //

   return (result);

} // end of dot_product//
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