$.$ The initial value in R$4$ is $0$xFACE$5678,$ in R$7$ is $0$xBB$114433,$ and the initial value of the $4-$

bit condition code NZCV $=0$b$0000$

STOP MOVS R$4,$ #$0$x$5$A ; instruction $1$

MOVS R$7,$ #$0$x$0$ ; instruction $2$

CBNZ R$7,$ DONE ; instruction $3$

MOVW R$4,$ #$0$xABCD ; instruction $4$

DONE END ; instruction $5$

a$)$ Convert the instruction $1$ into machine code $($result in hexadecimal format$)$