Intel's (INTC 2.17%) first-quarter results came up flat, and investors sent shares of the struggling semiconductor company lower. Intel shares are down more than 40% over the past year.Revenue was flat for the quarter, coming in at $12.7 billion. Adjusted earnings per share (EPS) sank 28$0.13. The lackluster numbers easily surpassed the $0.01 in EPS and$12.3 billion in revenue in the analyst consensus compiled by LSEG, but Intel's guidance disappointed.Let's take a closer look at Intel's quarterly res ...