switch(len) {
	case 11: c+=((unsigned int)k[10]<<24);
	case 10: c+=((unsigned int)k[9]<<16);
	case 9 : c+=((unsigned int)k[8]<<8);
	case 8 : b+=((unsigned int)k[7]<<24);
	case 7 : b+=((unsigned int)k[6]<<16);
	case 6 : b+=((unsigned int)k[5]<<8);
	case 5 : b+=k[4];
	case 4 : a+=((unsigned int)k[3]<<24);
	case 3 : a+=((unsigned int)k[2]<<16);
	case 2 : a+=((unsigned int)k[1]<<8);
	case 1 : a+=k[0];
     /* case 0: nothing left to add */
}

##</code><code>##

	goto 'LAST'.$len;
	LAST11: $c+= $k[10] <<24;
	LAST10: $c+= $k[9]  <<16;
	LAST9:  $c+= $k[8]  <<8;
	LAST8:  $b+= $k[7]  <<24;
	LAST7:  $b+= $k[6]  <<16;
	LAST6:  $b+= $k[5]  <<8;
	LAST5:  $b+= $k[4];
	LAST4:  $a+= $k[3]  <<24;
	LAST3:  $a+= $k[2]  <<16;
	LAST2:  $a+= $k[1]  <<8;
	LAST1:  $a+= $k[0];
	LAST0: