1.What are the different types of pre-processor directives available in ‘Embedded C’? Explain them in detail. 2. What is macro in ‘Embedded C’ programming? 3. What is the difference between macros and...

1.What are the different types of pre-processor directives available in ‘Embedded C’? Explain them in detail. 2. What is macro in ‘Embedded C’ programming? 3. What is the difference between macros and functions? 4. What are the merits and drawbacks of macros?

5. Write a macro to multiply two numbers. 6. Explain the different methods of ‘constant data’ declaration in ‘Embedded C’. Explain the differences between the methods.