Note:

It's microcontrollers

Please answer all as they're short answer and it's part of an a b c d type of question. Thanks!

47. After power-up, show how to select bank 2 with a single instruction. 48. Show the stack and stack pointer for each line of the following program. ORG 0 MOV RO, #66H MOV R3, #7FH MOV R7, #5DH PUSHO PUSH 3 PUSH 7 CLR A MOV R3, A MOV R7, A POP3 POP 7 POP 0 49. In Problem 48, does the sequence of POP instructions restore the original val- ues of registers RO, R3, and R7? If not, show the correct sequence of instruc- tions. 50. Show the stack and stack pointer for each line of the following program. ORG 0 MOV SP, #70H MOV R5, #66H MOV R2, #7FH MOV R7, #5DH PUSH 5 PUSH 2 PUSH 7 CLR A MOV R2,A MOV R7, A POP 7 POP 2 POP 5