#if defined(WIN64) && defined(COMPILER_MSC)

// for MSBT19x64 only:
inline void new_memsetd(void *b, dword data, int len){
	dword *t=(dword *)b;
	switch(len){
		case 6: t[5] = data;
		case 5: t[4] = data;
		case 4: t[3] = data;
		case 3: t[2] = data;
		case 2: t[1] = data;
		case 1: t[0] = data;
		case 0: return;
		
		default:{
			if(len&1) *t++=data;
			len>>=1;
		
			uint64 *w=(uint64*)t;
			uint64 q=*(dword*)&data;
			q |= (q << 32);
			
			switch(len) {
				default:{
					uint64 *lim = w + len - 32;
					while(w < lim) *w++ = q;
				}
				case 32: w[31] = q;
				case 31: w[30] = q;
				case 30: w[29] = q;
				case 29: w[28] = q;
				case 28: w[27] = q;
				case 27: w[26] = q;
				case 26: w[25] = q;
				case 25: w[24] = q;
				case 24: w[23] = q;
				case 23: w[22] = q;
				case 22: w[21] = q;
				case 21: w[20] = q;
				case 20: w[19] = q;
				case 19: w[18] = q;
				case 18: w[17] = q;
				case 17: w[16] = q;
				case 16: w[15] = q;
				case 15: w[14] = q;
				case 14: w[13] = q;
				case 13: w[12] = q;
				case 12: w[11] = q;
				case 11: w[10] = q;
				case 10: w[9] = q;
				case 9: w[8] = q;
				case 8: w[7] = q;
				case 7: w[6] = q;
				case 6: w[5] = q;
				case 5: w[4] = q;
				case 4: w[3] = q;
				case 3:	w[2] = q;
				case 2: w[1] = q;
				case 1:	w[0] = q;
			}
		}
	}
}

#else

inline void new_memsetd(void *b, dword data, int len){
	if(len<=1024*1024) FillRGBA((RGBA*)b,*(RGBA*)&data,len);
	else MemSet(b,data,len);
}

#endif

	RGBA c = Red();
	
	int bsize=8*1024*1024;
	Buffer<RGBA> b(bsize,(RGBA)Blue());

	String result="\"N\",\"Fill()\",\"new_memsetd()\",\"MemSet()\",\"FillRGBA()\"\r\n";
	for(int len=1;len<=bsize;){
		int maximum=100000000/len;
		int64 t0=usecs();
		for(int i = 0; i < maximum; i++) Fill(~b, c, len);
		int64 t1=usecs();
		for(int i = 0; i < maximum; i++) new_memsetd(~b, *(dword*)&c, len);
		int64 t2=usecs();
		for(int i = 0; i < maximum; i++) MemSet(~b, c, len);
		int64 t3=usecs();
		for(int i = 0; i < maximum; i++) FillRGBA(~b, c, len);
		int64 t4=usecs();
		result.Cat(Format("%d,%f,%f,%f,%f\r\n",len,1000.0*(t1-t0)/maximum,1000.0*(t2-t1)/maximum,1000.0*(t3-t2)/maximum,1000.0*(t4-t3)/maximum));
		if(len<64) len++;
		else len*=2;
	}
	
	SaveFile(GetHomeDirFile("Desktop/memset.csv"),result);