Question

Question: If the current value of the PC is 0x00000000, can you use a single jump instruction to get to the PC address as shown in Exercise 2.39?

Short answer

No, single jump can go up to 0x0FFFFFFC

Step-by-step solution

Determine the MIPS jump instruction

The MIPS assembly language has the j instruction to perform the jump.

For example:

j 1500

The above instruction will jump to the target address.

Determine whether the single jump instruction will be enough to get to the PC address.

The given value of PC is 0x00000000.

For the jump instruction the address range can be calculated as follows:

Let us consider the register values from the exercise 2.39 as given in the question.

Range:

The value of PC is added with the base register value and the value of register from exercise 2.39 is added.

The above is the range of the jump instruction.

So, No single jump instruction can be used, because the range of the jump is

it can go up to 0x0FFFFFFC