void Fill7(dword *t, dword data, int len){
	switch(len) {
		case 3: t[2] = data;
		case 2: t[1] = data;
		case 1: t[0] = data;
		case 0: return;
	}

	__m128i val4 = _mm_set1_epi32(data);
	auto Set4 = [&](int at) { _mm_storeu_si128((__m128i *)(t + at), val4); };

	Set4(len - 4); // fill tail
	if(len >= 32) {
		if(len >= 1024*1024) { // for really huge data, bypass the cache
			HugeFill(t, data, len);
			return;
		}
		const dword *e = t + len - 32;
		do {
			Set4(0); Set4(4); Set4(8); Set4(12);
			Set4(16); Set4(20); Set4(24); Set4(28);
			t += 32;
		}
		while(t <= e);
	}
	if(len & 16) {
		Set4(0); Set4(4); Set4(8); Set4(12);
		t += 16;
	}
	if(len & 8) {
		Set4(0); Set4(4);
		t += 8;
	}
	if(len & 4)
		Set4(0);
}

void Fill7a(dword *t, dword data, int len){
	if(len < 4) {
		if(len & 2) {
			t[0] = t[1] = data;
			t += 2;
		}
		if(len & 1)
			t[0] = data;
		return;
	}

	__m128i val4 = _mm_set1_epi32(data);
	auto Set4 = [&](int at) { _mm_storeu_si128((__m128i *)(t + at), val4); };

	Set4(len - 4); // fill tail
	if(len >= 32) {
		if(len >= 1024*1024) { // for really huge data, bypass the cache
			HugeFill(t, data, len);
			return;
		}
		const dword *e = t + len - 32;
		do {
			Set4(0); Set4(4); Set4(8); Set4(12);
			Set4(16); Set4(20); Set4(24); Set4(28);
			t += 32;
		}
		while(t <= e);
	}
	if(len & 16) {
		Set4(0); Set4(4); Set4(8); Set4(12);
		t += 16;
	}
	if(len & 8) {
		Set4(0); Set4(4);
		t += 8;
	}
	if(len & 4)
		Set4(0);
}

void Fill8(dword *t, dword data, int len){
	switch(len) {
		case 3: t[2] = data;
		case 2: t[1] = data;
		case 1: t[0] = data;
		case 0: return;
	}

	__m128i val4 = _mm_set1_epi32(data);
	auto Set4 = [&](int at) { _mm_storeu_si128((__m128i *)(t + at), val4); };

	Set4(len - 4); // fill tail
	if(len >= 32) {
		if(len >= 1024*1024) { // for really huge data, bypass the cache
			HugeFill(t, data, len);
			return;
		}
		int cnt = len >> 5;
		do {
			Set4(0); Set4(4); Set4(8); Set4(12);
			len -= 32;
			Set4(16); Set4(20); Set4(24); Set4(28);
			t += 32;
		}
		while(len >= 32);
	}
	switch((len >> 2) & 7) {
	case 7: Set4(24);
	case 6: Set4(20);
	case 5: Set4(16);
	case 4: Set4(12);
	case 3: Set4(8);
	case 2: Set4(4);
	case 1: Set4(0);
	}
}