Write an MSP$430$ assembly language subroutine, SEQ, to examine the contents of register R$5.$ If$,$ at any random position in the register $(16$ bits$),$ there are two occurrences of $1001$ separated exactly by $2$ unknown bit$($s$),$ the subroutine will clear R$5$; otherwise, R$5$ will be set to all $1$s$.$

Make sure all other registers are not changed $($hint: push, pop$).$