The M68K has a SWAP instruction to swap the upper and lower

The M68K has a SWAP instruction to swap the upper and lower halves of a register. If Motorola brought out a cheaper version of the processor without the SWAP instruction, we could nonetheless achieve the same effect with a combination of other instructions. Show a sequence of instructions that swaps the two halves of register DO.

Solution

Hi, I am giving the pseudo code for swapping without SWAP instruction.

This combination of instructions will swap the halves of an register without SWAP instruction.Hope,my answer helped you.Any other question regarding this question or any other question please feel free to ask us.We will love to help you