From JAVA to VB6 conversion

Hi I want an equivalent code of this in VB6 NOT IN VB.NET


long BitsInUnsignedInt = (long)(4 * 8);
long ThreeQuarters = (long)((BitsInUnsignedInt * 3) / 4);
long OneEighth = (long)(BitsInUnsignedInt / 8);
long HighBits = (long)(0xFFFFFFFF) << (BitsInUnsignedInt - OneEighth);
long hash = 0;
long test = 0;

for(int i = 0; i < str.length(); i++)
{
hash = (hash << OneEighth) + str.charAt(i);

if((test = hash & HighBits) != 0)
{
hash = (( hash ^ (test >> ThreeQuarters)) & (~HighBits));
}
}

return hash;