Be it known that an 8051 C Compiler does not initialize global memory variables to known values unless the programmer has specifically coded an assignment statement (or maybe an initializer but that is another discussion). That is strictly up to implementation and target specific code that is part of something that the C compiler expects may operate in an expected way. One such additional thing may be the expected support for initially calling [b]main()[/b] to get the program started. [i]Although even that can be changed simply by modifying the implementation and target specific code to launch to some other entry point and then the programmer chooses some other start up routine in the C code.

Michael Karas