<PAGE>
As filed with the Securities and Exchange Commission on March 27, 1998
Registration No. 333-38033-04
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- ------------------------------------------------------------------------------
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
POST-EFFECTIVE AMENDMENT NO. 4
on Form S-8
to
Form S-4
REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OF 1933
NATIONAL SEMICONDUCTOR CORPORATION
(Exact name of registrant as specified in its charter)
<TABLE>
<S> <C> <C>
DELAWARE 95-2095071
(State or other jurisdiction of 2900 Semiconductor Drive (I.R.S. Employer
incorporation or organization) P.O. Box 58090 Identification Number)
Santa Clara, California 95052-8090
(Address of principal executive offices)
Registrant's telephone number including area code: (408)721-5000
</TABLE>
_____________________________
CYRIX CORPORATION NON-DISCRETIONARY NON-EMPLOYEE DIRECTORS STOCK PLAN
(Full Title of the Plan)
JOHN M. CLARK III, Esq.
Senior Vice President, General Counsel
and Secretary
NATIONAL SEMICONDUCTOR CORPORATION
2900 Semiconductor Drive, P.O. Box 58090
Santa Clara, CA 95052-8090
(408)721-5000
(Telephone number, including area code, of agent for service)
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<PAGE>
DEREGISTRATION OF SHARES
Pursuant to Post Effective Amendment No. 2 on Form S-8 to Registration
Statement No. 333-38033 on Form S-4 (the "Registration Statement"), National
Semiconductor Corporation, a Delaware corporation (the "Company"), registered
56,719 shares of its Common Stock, $0.50 par value per share ("Common
Stock"), issuable under the Cyrix Corporation Non-Discretionary Non-Employee
Directors Stock Plan (the "Plan"). Upon the merger of Nova Acquisition
Corp., a Delaware corporation and a wholly owned subsidiary of the Company,
into Cyrix Corporation, a Delaware corporation, outstanding options issued
pursuant to the Plan became exercisable for shares of Company Common Stock.
All options under the Plan have now expired and the Company hereby removes
from registration under the Registration Statement 21,656 shares of Common
Stock which remain unissued in connection with the Plan.
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as
amended, the Company certifies that it has reasonable grounds to believe that
it meets all the requirements for filing this Post-Effective Amendment on
Form S-8 to the Registration Statement on Form S-4 (Registration No.
333-38033) and has duly caused this Post-Effective Amendment No. 4 to the
Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in San Jose, California on March 27, 1998.
NATIONAL SEMICONDUCTOR CORPORATION
By BRIAN L. HALLA*
---------------------------------
Brian L. Halla
Chairman of the Board, and Chief
Executive Officer
Pursuant to the requirements of the Securities Act of 1933, as
amended, this Post-Effective Amendment No. 4 on Form S-8 to the Registration
Statement has been signed below by the following persons in the capacities
indicated on March 27, 1998.
BRIAN L. HALLA* Chairman of the Board, President, Chief
- -------------------------- Executive Officer and Director
(Brian L. Halla) (Principal Officer)
DONALD MACLEOD* Executive Vice President, Finance and
- -------------------------- Chief Financial Officer (Principal
(Donald Macleod) Financial Officer)
RICHARD D. CROWLEY, JR.* Vice President and Controller (Principal
- -------------------------- Accounting Officer)
(Richard D. Crowley, Jr.)
GARY P. ARNOLD* Director
- --------------------------
(Gary P. Arnold)
ROBERT BESHAR* Director
- --------------------------
(Robert Beshar)
EDWARD R. McCRACKEN* Director
- --------------------------
(Edward R. McCracken)
MODESTO A. MAIDIQUE* Director
- --------------------------
(Modesto A. Maidique)
J. TRACY O'ROURKE* Director
- --------------------------
(J. Tracy O'Rourke)
CHARLES E. SPORCK* Director
- --------------------------
(Charles E. Sporck)
DONALD E. WEEDEN* Director
- --------------------------
(Donald E. Weeden)
* By: /s/ JOHN M. CLARK III
------------------------------
John M. Clark III
