topic-list.md

For the following topics:

1.    Direct addressing. Global variables in C.
   

2.     Control flow and branching.
   

3.     Subroutines with parameters.
   

4.     Subroutines with local variables.
   

5.    Short-circuited c operators, macros.
   

6.    Interrupts, priority queues.
   

7.    Linkage
   

Please provide:

1.  A brief description about what the topics are and the usage in programming
   

2.  An example how to illustrated (ppt, image jpg, or even characters)
   

3.  An example in code
   

4.  An example of exercise question