A lot of new knowledge points, and deficiencies are found. For example: When the task context switch, the stack is used. How to assign a stack of space. It didn't take into account this time. Now you need to read the information to analyze the design. Secondary clock beats are much more specific. To select one suitable for use in MyOS (51).
Today's finished task has summarizes which functions containing Os.c files. The function of each function has made a description. The scheduler OsSched () is designed to draw flowcharts. And design the data structure of the object TCB array operated by the schema, and the function definition of each bit.
Tomorrow's tasks are:
First, completely understand the implementation of the task switch, find out the global variables involved, and find out the related function functions of the existing two operating systems.
Second, the next day, one to two functions in Os.c. Ossendsignal () and Osclearsignal ().
