1. Markus Van Tol and Gaurav Sharda Professor Anton Kruger
TASK SWITCHER
Markus Van Tol and Gaurav Sharda
Professor Anton Kruger

2. INTRODUCTION
Multi tasking : A method where multiple tasks i.e., processes share a common resource – CPU, microcontroller.
Context switch : Process of storing and restoring state (context) of a CPU so that execution can be resumed from the same point at a later time.

3. COMPONENTS USED

4. CIRCUIT DIAGRAM

5. FLOW DIAGRAM

6. Performance Comparison
Ideally
Practically

7. INTERRUPTS vs. CONTEXT SWITCH
Place return point on stack
Run interrupt routine
Take return point back from stack
Faster
Requires special work to preserve values
Place return point on stack
Place registers and context-local values on stack
Change to another stack
Change back to first stack and take all values back
Slower
All values are context specific