Which of the following addressing modes are suitable for program relocation at run time?
$$1.$$ Absolute addressing
$$2.$$ Based addressing
$$3.$$ Relative addressing
$$4.$$ Indirect addressing

Consider the following program segment for a hypothetical $$CPU$$ having three user registers $$R1,R2, $$ and $$R3.$$

Consider that the memory is byte addressable with word size $$32$$ bits, and the program has been loaded starting from memory location $$1000$$ (decimal). If an interrupt occurs while the $$CPU$$ has been halted after executing the HALT instruction, the return address (in decimal) saved in the stack will be

Consider the following program segment for a hypothetical $$CPU$$ having three user registers $$R1,R2, $$ and $$R3.$$

Let the clock cycles required for various operations be as follows:
Register to/from memory transfer:
$$3$$ clock cycles
ADD with both operands in register:
$$1$$ clock cycle
Instruction fetch and decode:
$$2$$ clock cycles per word

The total number of clock cycle required to execute the program is

Which one of the following is true for a $$CPU$$ having a single interrupt request line and single interrupt grant line?