My program runs fine on uvision simulation (nothing to do with Silab peripherials). Same program shows (long multiplied by long) calling C:0000 My tool integration shows both, uvision and Silab are using same programs. Silabl people could not help.
"But I am using Keil Tools. SO I thought people using Keil will know it better and will be willing to help." Now you've lost me! I thought you said it worked with the Keil tools (uVision), but not SiLabs??