Document:

1982 Stock Options Plan

 Exhibit 10(a) 
 MENTOR GRAPHICS CORPORATION 
 1982 STOCK OPTION PLAN 
 (as amended as of November 29, 2006) 
 Mentor Graphics
recognizes that its continuing success depends upon the initiative, ability and significant contributions of officers and key employees. Mentor Graphics believes that by affording such employees the opportunity to purchase shares in Mentor Graphics
it will enhance its ability to attract and retain such employees and will provide an incentive for them to exert their best efforts on its behalf. 
 The
Plan is as follows: 
  

	1.	Shares Subject to the Plan. 

 1.1 Options and other
awards granted under this Plan shall be for authorized but unissued or reacquired common stock of Mentor Graphics. 
 1.2 Options may be
granted under paragraph 4 of the Plan, stock appreciation rights may be granted under paragraph 8.2 of the Plan, restricted stock and restricted stock units may be granted under paragraph 9 of the Plan, and Performance-based Awards (as defined in
paragraph 10 below) may be granted under paragraph 10 of the Plan for a total of not more than 32,670,000 shares of common stock, subject to adjustment under paragraph 11. Shares subject to options, to stock appreciation rights granted under
paragraph 8.2, to restricted stock units, and to Performance-based Awards that are terminated or expire without being exercised, other than options that are surrendered on exercise of a stock appreciation right granted under paragraph 8.1, shall be
added to the shares remaining for future awards under the Plan. If shares issued as restricted stock under paragraph 9 or pursuant to Performance-based Awards under paragraph 10 are forfeited to Mentor Graphics or repurchased by Mentor Graphics at
original cost, the number of shares forfeited or repurchased shall be added to the shares remaining for future awards under the Plan. 
 1.3
No employee may be granted options or stock appreciation rights under the Plan for more than an aggregate of 500,000 shares of common stock in any calendar year. 
  

	2.	Effective Date; Duration. 

 This Plan shall be
effective January 1, 1982 and shall continue until all shares available for issuance under the Plan have been issued, unless sooner terminated by the Board of Directors of Mentor Graphics (Board of Directors). Expiration or termination of the
Plan shall not affect outstanding options, bonus rights, stock appreciation rights, restricted stock, restricted stock units or Performance-based Awards. 
  

	3.	Administration. 

 3.1 The Plan shall be administered
by a compensation committee appointed by the Board of Directors (Committee). The Committee may delegate any of its administrative duties to one or more agents and may retain advisors to assist it. 
 3.2 The Committee shall have general responsibility to interpret and administer the Plan. Any decision by the Committee shall be final and bind all
parties. Notwithstanding the foregoing, the Committee’s exclusive power to make final and binding interpretations of the Plan shall immediately terminate upon the occurrence of a Change in Control (as defined in paragraph 7.2). The Committee
shall keep adequate records of options, bonus rights, stock appreciation rights, restricted stock, restricted stock units and Performance-based Awards granted under the Plan and shall be responsible for communication with award recipients.

 3.3 No Committee member shall participate in the decision of any question relating exclusively to an option, bonus right, stock
appreciation right, restricted stock award or Performance-based Award granted to the member. 

	4.	Grant of Options. 

 4.1 Options granted under the
Plan may be either incentive stock options within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the Code), or options other than incentive stock options (nonqualified stock options). No incentive stock options may
be granted under the Plan on or after the tenth anniversary of the last action by the Board of Directors approving an increase in the number of shares available for issuance under the Plan, which action was subsequently approved within 12 months by
the shareholders. 
 4.2 Options may be granted to any officer or key employee of Mentor Graphics and any subsidiary of Mentor Graphics and
may be granted in substitution for outstanding options of another corporation by reason of merger, consolidation, acquisition of property or stock, or other reorganization between such other corporation and Mentor Graphics or any subsidiary of
Mentor Graphics. Additional options may be granted to existing optionees. 
 4.3 The Committee shall designate persons to receive grants, and
as to each option shall specify the number of shares, the option price and term, the time or times at which the option may be exercised, whether the option is an incentive stock option or a nonqualified stock option and all other terms and
conditions of the option. 
 4.4 No employee may be granted incentive stock options under the Plan such that the aggregate fair market value,
on the date of grant, of the shares with regard to which incentive stock options are exercisable for the first time by that employee during any calendar year under the Plan and under any other stock option plan of Mentor Graphics or any parent or
subsidiary of Mentor Graphics exceeds $100,000. Fair market value shall be determined under subparagraph 5.1(c) as of the date of each grant. 
  

	5.	Option Terms. 

 5.1 The option price shall be fixed
by the Committee as follows: 
 (a) Subject to (b) the option price for an incentive stock option shall be not less than
the fair market value of the shares on the date of grant. The option price for a nonqualified stock option shall be not less than 50% of the fair market value of the shares on the date of grant. 
 (b) If the optionee at the time of grant owns stock possessing more than 10 percent of the combined voting power of all classes of stock
of Mentor Graphics, the option price for an incentive stock option shall be not less than 110 percent of the fair market value of the shares on the date of grant. Stock owned by the optionee shall include for this purpose, and for purposes of
paragraph 5.2, stock attributed to the optionee pursuant to applicable provisions of the Code. 
 (c) “Fair market
value” means an amount determined by, or in an manner approved by, the Committee. The Committee may appoint and rely on one or more qualified independent appraisers to value the stock or use such other evaluation as it considers appropriate.

 5.2 The Committee shall fix a time limit of not over 10 years after the date of grant for exercise of an incentive stock option. The
Committee shall fix a time limit of not over 10 years plus seven days after the date of grant for exercise of a nonqualified stock option. For a more than 10 percent shareholder the maximum limit for exercise of an incentive stock option shall be
five years. The Committee may make the option exercisable in full immediately or in graduated amounts over the option term. 
 5.3 The option
shall be evidenced by a stock option agreement executed by Mentor Graphics and the optionee in a form prescribed by the Committee. 
 5.4 The
option may not be assigned or transferred except (a) on death, by will or operation of law, or pursuant to a qualified domestic relations order as defined under the Code or Title I of the Employee Retirement Income Security Act or (b) with
respect to nonqualified options, as otherwise approved by the Committee. The option may be exercised only by the optionee or by a successor or representative after death, except as otherwise approved by the Committee with respect to nonqualified
options. 
  

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 5.5 Unless otherwise determined by the Committee, if an officer of Mentor Graphics subject to
Section 16 of the Securities Exchange Act of 1934 (1934 Act) exercises an option within six months of the grant of the option, the shares acquired upon exercise of the option may not be sold until six months after the date of grant of the
option. 
  

	6.	Bonus Rights. 

 6.1 The Committee may grant bonus
rights in connection with nonqualified stock options granted under the Plan. Bonus rights may be granted with the related option or at a later time. A bonus right may not be assigned or transferred except on death, by will or operation of law, or
pursuant to a qualified domestic relations order as defined under the Code or Title I of the Employee Retirement Income Security Act. Bonus rights will be subject to such rules, terms, and conditions as the Committee may prescribe. 
 6.2 A bonus right will entitle an optionee to a cash bonus in connection with the exercise in whole or in part of the related option. Subject to
paragraph 6.3, the amount of the bonus shall be determined by multiplying the applicable bonus percentage by the amount by which the fair market value, on the exercise date, of the shares received on exercise of the related option exceeds the option
price. The cash bonus will be payable within 30 days following the date as of which its amount is determined. For the purpose of this paragraph, fair market value shall be determined according to subparagraph 5.1(c). The bonus percentage applicable
to a bonus right shall be determined by the Committee, but shall in no event exceed 100 percent. 
 6.3 The Committee may set a maximum
dollar limit on the amount of cash to be paid under any bonus right. 
  

	7.	Acceleration Upon Change in Control. 

 7.1 The
Committee may grant acceleration rights to holders of options or stock appreciation rights which will provide that the options or stock appreciation rights will become exercisable in full for the remainder of their terms upon the occurrence of a
Change in Control. Acceleration rights may be granted with an option or stock appreciation right or at a later time by amendment of outstanding options or stock appreciation rights. 
 7.2 “Change in Control” means the occurrence of any of the following events, unless prior to the occurrence of the event, the Committee
determines that the specific event shall not be considered a Change in Control: 
 (a) the shareholders of Mentor Graphics
shall approve: 
 (i) any consolidation, merger or plan of share exchange involving Mentor Graphics (Merger) in which Mentor
Graphics is not the continuing or surviving corporation or pursuant to which shares of common stock would be converted into cash, securities or other property, other than a Merger involving Mentor Graphics in which the holders of Mentor
Graphics’ common stock immediately prior to the Merger have the same proportionate ownership of common stock of the surviving corporation immediately after the Merger; 
 (ii) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or substantially all,
the assets of Mentor Graphics; or 
 (iii) the adoption of any plan or proposal for the liquidation or dissolution of Mentor
Graphics; 
 (b) at any time during a period of two consecutive years, individuals who at the beginning of such period
constituted the Board of Directors (Incumbent Directors) shall cease for any reason to constitute at least a majority thereof, unless each new director elected during such two-year period was nominated or elected by two-thirds of the Incumbent
Directors then in office and voting (new directors nominated or elected by two-thirds of the Incumbent Directors shall also be deemed to be Incumbent Directors); or 
  

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 (c) any person (as such term is used in Section 13(d) of the 1934 Act) shall, as a
result of a tender or exchange offer, open market purchases, privately negotiated purchases or otherwise, have become the beneficial owner (within the meaning of Rule 13d-3 under the 1934 Act), directly or indirectly, of securities of Mentor
Graphics ordinarily having the right to vote in the election of directors (Voting Securities) representing twenty percent (20%) or more of the combined voting power of the then outstanding Voting Securities. 
  

	8.	Stock Appreciation Rights. 

 8.1 (a) The Committee,
in its sole discretion, may grant both “general” and “limited” stock appreciation rights with all or any part of an incentive stock option or a nonqualified stock option granted under the Plan. Stock appreciation rights may be
granted with the related option or at any later time during the term of the option. 
 (b) A general stock appreciation right
granted with all or any part of an option shall be exercisable only at the time or times established by the Committee and only to the extent that the related option could be exercised. A limited stock appreciation right shall be exercisable only
during the 60 calendar days immediately following a Change in Control and only if the immediate resale of shares acquired upon exercise of the related option would subject the optionee to liability under Section 16(b) of the 1934 Act; provided,
however, that a limited stock appreciation right may not be exercised within six months of its date of grant. Upon exercise of a stock appreciation right, the option or portion thereof to which the stock appreciation right relates must be
surrendered. The shares subject to an option or portion thereof that is surrendered upon exercise of a stock appreciation right shall not be available for future option or stock appreciation rights grants under the Plan. 
 (c) Each stock appreciation right granted with all or any part of an option shall entitle the holder to receive from Mentor Graphics an
amount equal to the excess of the fair market value at the time of exercise of one share of Mentor Graphics common stock over the option price per share under the related option, multiplied by the number of shares covered by the related option or
portion of the related option. 
 (d) The terms of a limited stock appreciation right granted with a nonqualified stock option
may provide, if so determined by the Committee, that the fair market value of the common stock for purposes of subparagraph 8.1(c) shall be equal to the higher of: 
 (i) the highest reported sales price of the common stock during the 60-day period ending on the date the limited stock appreciation right
is exercised; 
 (ii) the highest per share price paid for shares of common stock purchased in any tender or exchange offer
during the 60 calendar days preceding the exercise of the limited stock appreciation right; 
 (iii) the fixed or formula
price to be received by holders of shares of common stock in or as a result of any transaction described in subparagraph 7.2(a) if such price is determinable on the date of exercise, provided that any securities or other property that are part of
the fixed or formula price shall be valued at the highest valuation placed on the securities or property in any communication to the shareholders of Mentor Graphics by any party to the transaction; and 
 (iv) the highest price per share shown on a Schedule 13D, or any amendment thereto, filed by the holder or holders of the specified
percentage of common stock whose acquisition gives rise to the exercisability of the limited stock appreciation right. 
 8.2 (a) The
Committee may grant general stock appreciation rights without related options under the Plan to any officer or key employee of Mentor Graphics and any subsidiary of Mentor Graphics. Such stock appreciation rights may be granted in substitution for
outstanding stock appreciation rights of another corporation by reason of merger, consolidation, acquisition of property or stock, or other reorganization between such other corporation and Mentor Graphics or any subsidiary of Mentor Graphics.
Additional stock appreciation rights may be granted to existing holders of stock appreciation rights and may be granted in exchange for outstanding stock appreciation rights. 
  

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 (b) The Committee shall designate persons to receive grants of stock appreciation rights,
and as to each stock appreciation right shall specify the number of shares, the stock appreciation right price, the term, the time or times at which the stock appreciation right may be exercised and all other terms and conditions of the stock
appreciation right. The stock appreciation right price shall not be less than 50% of the fair market value of the shares on the date of grant. 
 (c) Each stock appreciation right granted without a related option shall entitle the holder to receive from Mentor Graphics an amount equal to the excess of the fair market value at the time of exercise of one share
of Mentor Graphics common stock over the stock appreciation right price, multiplied by the number of shares covered by the stock appreciation right or portion thereof that is exercised. The shares subject to a stock appreciation right or portion
thereof that is exercised shall not be available for future option or stock appreciation right grants under the Plan. 
 8.3 (a) Payment upon
exercise of a general stock appreciation right by Mentor Graphics may be made in shares of Mentor Graphics common stock valued at fair market value, or in cash, or partly in shares and partly in cash. The Committee shall either specify the form of
payment or retain the power to disapprove any election by a holder to receive cash on exercise of a stock appreciation right. For the purpose of this paragraph, fair market value shall be determined according to subparagraph 5.1(c). 
 (b) Payment upon exercise of a limited stock appreciation right by Mentor Graphics may be made only in cash. 
 8.4 No fractional shares shall be issued upon exercise of a stock appreciation right. In lieu thereof, cash may be paid in an amount equal to the value
of the fraction or, in the discretion of the Committee, the number of shares may be rounded to the next whole share. 
 8.5 Stock
appreciation rights will be subject to such rules, terms, and conditions, and shall be evidenced by an agreement in such form, as the Committee may prescribe prior to the occurrence of a Change in Control. 
 8.6 Stock appreciation rights may not be assigned or transferred except on death, by will or operation of law, or pursuant to a qualified domestic
relations order as defined under the Code or Title I of the Employee Retirement Income Security Act. Stock appreciation rights may be exercised only by the holder or by a successor or representative after death. 
 8.7 Unless otherwise determined by the Committee, no stock appreciation right may be exercised by an officer of Mentor Graphics subject to
Section 16 of the 1934 Act during the first six months following the date of grant. 
  

	9.	Restricted Stock and Restricted Stock Units. 

 9.1
The Committee may issue up to an aggregate of 5,000,000 shares (i) as restricted stock under this paragraph 9, (ii) pursuant to restricted stock units under this paragraph 9, and (iii) as Performance Shares (as defined in paragraph 10
below). Restricted stock and restricted stock units may be issued under the Plan to any officer or key employee of Mentor Graphics or any subsidiary of Mentor Graphics for any consideration (including promissory notes and services) determined by the
Committee. Shares issued under the Plan shall be subject to the terms, conditions and restrictions determined by the Committee. The restrictions may include restrictions concerning transferability, repurchase by Mentor Graphics and forfeiture of the
shares issued, together with any other restrictions determined by the Committee. 
 9.2 All restricted stock and restricted stock units
issued pursuant to this paragraph 9 shall be subject to an award agreement, which shall be executed by Mentor Graphics and the recipient. The award agreement may contain any terms, conditions, restrictions, representations and warranties required by
the Committee. The certificates, if any, representing the shares shall bear any legends required by the Committee. 
  

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 9.3 Mentor Graphics may require any recipient of restricted stock or restricted stock units to pay to
Mentor Graphics in cash or by check upon demand amounts necessary to satisfy any applicable federal, state or local tax withholding requirements. If the recipient fails to pay the amount demanded, Mentor Graphics or its subsidiary may withhold that
amount from other amounts payable by Mentor Graphics or the subsidiary to the recipient, including salary, subject to applicable law. With the consent of the Committee, a recipient may satisfy this obligation, in whole or in part, by instructing
Mentor Graphics to withhold from any shares to be issued or by delivering to Mentor Graphics other shares of common stock; provided, however, that the number of shares so withheld or delivered shall not exceed the minimum amount necessary to satisfy
the required withholding obligation. Upon the issuance of restricted stock or restricted stock units, the number of shares reserved for issuance under the Plan shall be reduced by the number of shares covered by the award. 
  

	10.	Performance-Based Awards. 

 The Committee may grant
awards intended to qualify as qualified performance-based compensation under Section 162(m) of the Code and the regulations thereunder (Performance-based Awards) to any officer or key employee of Mentor Graphics or any subsidiary of Mentor
Graphics. The Committee may issue up to an aggregate of 5,000,000 shares as (i) Performance Shares under this paragraph 10, and (ii) restricted stock under paragraph 9. Performance-based Awards shall be denominated at the time of grant
either in common stock (Stock Performance Awards) or in dollar amounts (Dollar Performance Awards). Payment under a Stock Performance Award or a Dollar Performance Award shall be made, at the discretion of the Committee, in common stock (Performance
Shares), or in cash or in any combination thereof. Performance-based Awards shall be subject to the following terms and conditions: 
 10.1
Award Period. The Committee shall determine the period of time for which a Performance-based Award is made (Award Period). 
 10.2
Performance Goals and Payment. The Committee shall establish in writing objectives (Performance Goals) that must be met by Mentor Graphics, or any subsidiary, division or other unit of Mentor Graphics (Business Unit) during the Award Period
as a condition to payment being made under the Performance-based Award. The Performance Goals for each award shall be one or more targeted levels of performance with respect to one or more of the following objective measures with respect to Mentor
Graphics or any Business Unit: earnings, earnings per share, stock price increase, total shareholder return (stock price increase plus dividends), return on equity, return on assets, return on capital, economic value added, revenues, bookings,
operating income, operating expenses, cash flows, increases in market share or any of the foregoing before the effect of acquisitions, divestitures, accounting changes, and restructuring and special charges (determined according to criteria
established by the Committee). The Committee shall also establish the number of Performance Shares or the amount of cash payment to be made under a Performance-based Award if the Performance Goals are met or exceeded, including the fixing of a
maximum payment (subject to paragraph 10.4). The Committee may establish other restrictions to payment under a Performance-based Award, such as a continued employment requirement, in addition to satisfaction of the Performance Goals. Some or all of
the Performance Shares may be delivered to the recipient at the time of the award as restricted stock subject to forfeiture in whole or in part if Performance Goals or, if applicable, other restrictions are not satisfied. 
 10.3 Computation of Payment. During or after an Award Period, the performance of the Company or Business Unit, as applicable, during the period
shall be measured against the Performance Goals. If the Performance Goals are not met, no payment shall be made under a Performance-based Award. If the Performance Goals are met or exceeded, the Committee shall certify that fact in writing and
certify the number of Performance Shares earned or the amount of cash payment to be made under the terms of the Performance-based Award. 
 10.4 Maximum Awards. No participant may receive in any fiscal year Stock Performance Awards under which the aggregate amount payable under the Awards exceeds the equivalent of 50,000 shares of common stock or Dollar Performance
Awards under which the aggregate amount payable under the Awards exceeds $1,000,000. 
 10.5 Tax Withholding. Each recipient who has
received Performance Shares shall, upon notification of the amount due, pay to Mentor Graphics in cash or by check amounts necessary to satisfy any applicable federal, 

  

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state and local tax withholding requirements. If the recipient fails to pay the amount demanded, Mentor Graphics or its subsidiary may withhold that amount
from other amounts payable to the recipient, including salary, subject to applicable law. With the consent of the Committee, a recipient may satisfy this obligation, in whole or in part, by instructing Mentor Graphics to withhold from any shares to
be received or by delivering to Mentor Graphics other shares of common stock; provided, however, that the number of shares so delivered or withheld shall not exceed the minimum amount necessary to satisfy the required withholding obligation.

 10.6 Effect on Shares Available. The payment of a Performance-based Award in cash shall not reduce the number of shares of common
stock reserved for award under the Plan. The number of shares of common stock reserved for award under the Plan shall be reduced by the number of shares delivered to the recipient upon payment of an award. 
  

	11.	Changes in Capital Structure. 

 If any change is
made in the outstanding common stock without Mentor Graphics’ receiving any consideration, such as a stock split, reverse stock split, stock dividend, or combination or reclassification of the common stock, a corresponding change shall be made
in the number of shares remaining available for awards under the Plan and in all other share amounts set forth in the Plan, disregarding fractional shares, without any further approval of the shareholders. The adjustment shall be made by the
Committee whose determination shall be conclusive. 
  

	12.	Amendment or Termination of the Plan. 

 12.1 The
Board of Directors may amend or terminate this Plan at any time subject to paragraph 12.2. 
 12.2 Unless the amendment is approved by the
shareholders, no amendment shall be made in the Plan that would: 
 (a) Increase the total number of shares available for
awards under the Plan or the total number of shares permitted to be issued under restricted stock awards, restricted stock units or Performance-based Awards; 
 (b) Increase the maximum option term; or 
 (c) Modify the requirements for eligibility under the Plan. 
  

 7Registrant's Specimen Certificate for Ordinary Shares

 Exhibit 4.2 
 MELCO PBL ENTERTAINMENT (MACAU) LIMITED 
  

			
	 Number
	  	Ordinary Shares
	 -[    ]-
	  	-[    ]-    

 Incorporated in the Cayman Islands under the Companies Law 
 (as amended or revised from time to time) 
 The
authorised share capital of the Company is US$15,000,000 divided into 1,500,000,000 ordinary shares 
 of a nominal or par value of US$0.01
each 
 THIS CERTIFIES THAT [            ] of
[            ] is the registered holder of [            ] Ordinary Shares in the above-named Company subject to the
Memorandum and Articles of Association thereof. 
 Executed on behalf of the Company this
[            ] day of [            ] 20 [        ]. 
                                       
   [Seal] 
 Director/Secretary 
 THE SECURITIES
REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE
REGISTRATION STATEMENT FOR THE SHARES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND APPLICABLE STATE SECURITIES LAWS OR (B) AN OPINION OF COUNSEL, IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT AND APPLICABLE
STATE SECURITIES LAWS OR (II) UNLESS SOLD PURSUANT TO RULE 144 UNDER SAID ACT. 
     TRANSFER 
 I
                                        
                 (the Transferor) for the value received DO HEREBY transfer to
                                        
         (the Transferee) the
                                        
                         shares standing in my name in 
 MELCO PBL ENTERTAINMENT (MACAU) LIMITED 
 To hold the same unto the Transferee 
 Dated
                                        
             
  
  
  
  
 Signed by the Transferor

 In the presence of: 
  

									
	  	 		  	  	  		  	
	 Witness
	 		  	Transferor

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