__asm __volatile("pxor %%mm7, %%mm7\n\t":::"memory");
__asm __volatile("pxor %%mm7, %%mm7\n\t":);
static void put_no_rnd_pixels_y2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h){  UINT8  *p;  const UINT8 *pix;  p = block;  pix = pixels;  __asm __volatile("pxor %%mm7, %%mm7\n\t":::"memory");  do {    __asm __volatile(	"movq	%1, %%mm0\n\t"	"movq	%2, %%mm1\n\t"	"movq	%%mm0, %%mm2\n\t"	"movq	%%mm1, %%mm3\n\t"	"punpcklbw %%mm7, %%mm0\n\t"	"punpcklbw %%mm7, %%mm1\n\t"	"punpckhbw %%mm7, %%mm2\n\t"	"punpckhbw %%mm7, %%mm3\n\t"	"paddusw %%mm1, %%mm0\n\t"	"paddusw %%mm3, %%mm2\n\t"	"psrlw	$1, %%mm0\n\t"	"psrlw	$1, %%mm2\n\t"	"packuswb  %%mm2, %%mm0\n\t"	"movq	%%mm0, %0\n\t"	:"=m"(*p)	:"m"(*pix),	 "m"(*(pix+line_size))	:"memory");   pix += line_size;   p +=   line_size;  } while(--h);}