How many ways are there to deal with 8051 interrupts ?

Which of the following statements are false?

During ISR, contents of which two registers are stored in the stack ?

ORL A, R3;

Which addressing mode is used in the above code ?

What is the final value in register A after executing the following instructions?

SETB C

MOV A, #15H

RLC A

Which of the following statements about SJMP is false?

The number of unique memory locations that a CPU can address is always equal to ²x, where x refers to the number of address lines, regardless of the size of the data bus.

How can the external interrupts of the 8051 microcontroller be enabled?

The overflow flag in 8051 is set to logic zero under which of the following operations?

Which of the following statements is true about the assembler directive 'EQU' (equate)?