CUSIP No. 918270-10-9                    13D                  Page 5 of 19 Pages
 
                                  EXHIBIT 3.1
                        SCHEDULE OF CALL AND PUT OPTIONS
 
CALL OPTIONS WRITTEN (SOLD)
 
<TABLE>
<CAPTION>
                                                         NUMBER OF                               PREMIUM       EXPIRATION
TRADE DATE                  COUNTERPARTY                  SHARES    STRIKE PRICE    PREMIUM    PAYMENT DATE       DATE
- ----------           --------------------------          ---------  ------------    -------    ------------    ---------- 
<S>            <C>                                      <C>           <C>           <C>          <C>            <C>
2/24/95        Union Bank of Switzerland ("UBS")          140,000     $15.00        $693,000      3/3/95        10/1/97
2/27/95        UBS                                         60,000     $15.00        $309,000      3/6/95        10/1/97
3/1/95         UBS                                        170,000     $15.00        $837,097      3/8/95        10/1/97
3/1/95         Lehman Brothers Finane S.A. ("Lehman")   1,000,000     $15.25      $4,600,000      3/8/95        10/1/97
3/3/95         UBS                                         65,000     $15.00        $319,800     3/10/95        10/1/97
3/6/95         UBS                                        100,000     $15.00        $497,000     3/13/95        10/1/97
3/16/95        Lehman Brothers                            250,000     $17.50      $1,327,500     3/23/95        10/1/97
3/27/95        Swiss Bank Corporation                     125,000     $18.00        $626,250      4/3/95        10/1/97
4/10/95        Swiss Bank Corporation                     200,000     $18.00      $1,028,800     4/17/95        10/1/97
4/11/95        Swiss Bank Corporation                     200,000     $18.88      $1,096,000     4/18/95        10/1/97
4/12/95        Swiss Bank Corporation                     120,000     $15.00        $912,000     4/19/95        10/1/97
4/13/95        Swiss Bank Corporation                     229,176     $15.00      $1,780,698     4/20/95        10/1/97
4/17/95        Swiss Bank Corporation                      18,428     $15.00        $144,660     4/24/95        10/1/97
                                                        ---------
Total                                                   2,677,604
</TABLE>
 
PUT OPTIONS PURCHASED
 
<TABLE>
<CAPTION>
                                                         NUMBER OF                              PREMIUM        EXPIRATION
TRADE DATE          COUNTERPARTY                          SHARES    STRIKE PRICE    PREMIUM    PAYMENT DATE       DATE
- ----------   --------------------------                  ---------  ------------    --------   ------------    ----------
<S>            <C>                                      <C>          <C>           <C>           <C>            <C>
3/16/95        Lehman                                     250,000     $14.00        $442,500     3/16/95        10/1/97
3/27/95        Swiss Bank Corporation                     125,000     $14.00        $187,500      4/3/95        10/1/97
4/10/95        Swiss Bank Corporation                     200,000     $14.00        $292,000     4/10/95        10/1/97
4/11/95        Swiss Bank Corporation                     200,000     $14.50        $373,500     4/11/95        10/1/97
4/12/95        Swiss Bank Corporation                     120,000     $14.00        $180,000     4/19/95        10/1/97
4/13/95        Swiss Bank Corporation                     229,176     $14.00        $343,764     4/13/95        10/1/97
4/17/95        Swiss Bank Corporation                      18,428     $14.00         $27,458     4/24/95        10/1/97
4/26/95        Lehman                                   1,535,000     $15.00      $2,394,600      5/1/95        10/1/97
                                                        ---------
Total                                                   2,677,604

</TABLE>

PUT OPTIONS CLOSED (REPURCHASED BY COUNTERPARTY)
<TABLE>

<CAPTION>

  Date                                                  Number of                                Premium       Expiration
Purchased         Date Sold        Counterparty          Shares     Strike Price     Premium    Payment Date      Date
- ---------         ---------        ------------         ---------   ------------   -----------  ------------   ----------
<S>                <C>                <C>               <C>           <C>        <C>             <C>            <C>
3/7/95             4/26/95            Lehman            1,000,000     $12.00     *$1,285,000     3/14/95        10/1/97
3/8/95             4/26/95            Lehman              535,000     $12.00     *  $749,000     3/15/95        10/1/97

- --------------------    
* Intel received $1,128,225 from Lehman in connection with the repurchase of these put options.

</TABLE>