Write a RISC$-$V OTTER assembly language subroutine that reformats a block of memory start at the address passed to the subroutine in $a0.$ The original format is signed halfwords; the new format will be unsigned words, which means that all values are stored as the absolute value of their original representation. The subroutine does not reformat$/$store values that are zero. The number of signed halfwords to reformat is passed to the subroutine in a$1$; the number of values reformatted is passed back to the calling code in a$2.$

Minimize the number of instructions in your solution

Don't save or restore context