Hi, I am using p89v51rd2 micro controller,Kiel software for my application. when i built my program it is showing that Program Size: data=12.2 xdata=626 code=44379 creating hex file from "SGW"... "SGW" - 0 Error(s), 6 Warning(s) in the datasheet it is mentioned that 1KB data RAM,64KB code flash.I am programming i c.The code is working miscellaneously some times.does it happening because of exceed of data memory.How can i know how much data memory is using by program? Please let me know how to minimize data memory in my application. Thanks in advance, With regards, Bhaskar