case T_POINTER:                                        ## If pointer
    params[i].t = T_POINTER;
    origST[i] = ST(i+1);
    if(has_proto) {                                   
        pointerCallPack(ST(i+1), i, intypes);
        params[i].p = (char *) SvPV_nolen(ST(i+1));
    } else {                                          ## and no proto
        if(SvIOK(ST(i+1)) && SvIV(ST(i+1)) == 0) {    ## and IV is OK and zero
            params[i].p = NULL;                       ## use NULL
        } else {
            params[i].p = (char *) SvPV_nolen(ST(i+1)); ## else use the address of the PV
        }
    }