#include <stdio.h>
#include <mmintrin.h>

#define AS_WORDS "%4.4x %4.4x %4.4x %4.4x"
#define AS_DWORDS "%8.8lx %8.8lx"

__m64   a;
__m64   b = { 0x0000006000123456 };
__m64   c = { 0x0000000200010020 };

void main()
  {
    a = _m_pmaddwd( b, c );
    printf( "m1="AS_WORDS"\n"
            "m2="AS_WORDS"\n"
            "mm="AS_DWORDS"\n",
        b._16[3], b._16[2], b._16[1], b._16[0],
        c._16[3], c._16[2], c._16[1], c._16[0],
        a._32[1], a._32[0] );
  }