inline void new_memset128(void *b, dword data, int len){
	switch(len){
		case 5: ((dword *)b)[4] = data;
		case 4: ((dword *)b)[3] = data;
		case 3: ((dword *)b)[2] = data;
		case 2: ((dword *)b)[1] = data;
		case 1: ((dword *)b)[0] = data;
		case 0: return;
	}
	
	__m128i q = _mm_set1_epi32(*(int*)&data);
	__m128i *w = (__m128i*)b;
	__m128i *e = (__m128i*)b + (len>>2);

	if(len <= 2*1024*1024 || ((uintptr_t)b&3)){
		while(w<e-1){
			_mm_storeu_si128(w++, q);
			_mm_storeu_si128(w++, q);
		}
		if(w<e) _mm_storeu_si128(w++, q);
	}
	else{
		int s=(-((int)((uintptr_t)b)>>2))&0x3;
		switch(s){
			case 3: ((dword *)b)[2] = data;
			case 2: ((dword *)b)[1] = data;
			case 1: ((dword *)b)[0] = data;
		}
		
		w = (__m128i*) ((dword*)b + s);
		
		while(w<e) _mm_stream_si128(w++, q);
		_mm_sfence();
	}

	switch(len&3){
		case 3: ((dword *)b)[len-3] = data;
		case 2: ((dword *)b)[len-2] = data;
		case 1: ((dword *)b)[len-1] = data;
	}
}