EXHIBIT 11.1 COMPUTATION OF EARNINGS PER SHARE (AMOUNTS IN THOUSANDS EXCEPT PER SHARE DATA) THREE MONTHS ENDED MARCH 31, ------------------ 1997 1996* -------- -------- Weighted average shares outstanding: Common stock 16,562 14,832 Common stock equivalents -- 2,613 -------- ------- Weighted average common shares and equivalents 16,562 17,445 Net income (loss) $(2,118) $ 2,744 -------- ------- -------- ------- Net income (loss) per share (1) $ (0.13) $ 0.16 -------- ------- -------- ------- - -------------------------- * Q1 1996 has been restated to reflect the merger of the Company and SpeedSim Inc., which was accounted for as a pooling of interests. (1) There is no difference between primary and fully diluted net income per share.