Technical Center

The .map file generated after compiling the code in the Keil C51 contains a lot of useful information, and when I recently looked at the .map file to check the space usage of each part of the code, I saw some strange symbols in the .map file

When developing SS881X/SS880X chips with keil C51, there will be the following two different sounds for the initialization of some global variables: First, when defining this global variable, assign the variable a value at the same time. Second, After defining the global variable, assign the variable a value. So what are the similarities and differences between these two methods for some global variable initialization?