Exhibit 11.1 C-CUBE MICROSYSTEMS INC. COMPUTATION OF EARNINGS PER SHARE Quarter Ended March 31, 1997 and 1996 (in thousands, except per share amounts) Quarter Ended March 31, ---------------------- 1997 1996 --------- --------- Net income $ 15,395 $ 13,581 ========= ========= Weighted average common shares outstanding 36,214 32,742 Common share equivalents related to stock options 1,730 3,300 --------- --------- Weighted average common and equivalent shares 37,944 36,042 ========= ========= Net income per share $ 0.41 $ 0.38 ========= =========