1 EXHIBIT 11.1 DIAMOND MULTIMEDIA SYSTEMS, INC. STATEMENT REGARDING COMPUTATION OF NET INCOME (LOSS) PER SHARE (in thousands, except per share data) YEARS ENDED DECEMBER 31, --------------------------- 1996 1995 1994 ---- ---- ---- Weighted average common shares outstanding for period 34,351 26,724 -- Dilutive employee stock options 844 Common Equivalent Shares pursuant to Staff Accounting Bulletin No 83 -- -- 20,900 ------- -------- ------- Shares used in per share calculations 35,195 26,724 20,900 Net income (loss) $16,337 $(41,347) $20,116 ------- -------- ------- Net income (loss) per share $ 0.46 $ (1.55) $ 0.96 ======= ======== ======= The difference between the calculation of net income (loss) per share calculated on the primary and fully diluted basis is not material. 57