3. What is the function of stack? Show the stack and stack pointer for each line of the following program ORG 0000H MOV SP, #2FH MOV R5, #5511 MOV R7, #77H PUSH 7 PUSH 5 MOV R5, #22H MOV R7, #33H POP 7 POP 5 SJMP S END Assemble the above program using Edsim51 and through single step, verify that your answer matches with the actual program execution. Observe how the contents of RAM locations 00-07h and 30-31h are changing