Asian-Pacific markets were mixed Wednesday as traders limited their exposure, waiting for the next statement from the Federal Reserve's policy committee and U.S. second-quarter gross domestic product data. Japan's Nikkei 225 was down 1.5%. Hong Kong's Hang Seng Index slid 0.3%. Australia's S&P/ASX 200 edged up 0.1%. China's Shanghai Composite rose 0.2%. South Korea's Kospi lost 0.2%. India's Sensex was flat.