Write the complete AVR subroutine for AT mega $328$ that will shift the bit patterns. $($Note: Only these $30$ instructions should be used ADD, ADC, CP$,$ CPI, NEG, COM, AND, ANDI, EOR, OR$,$ ORI, LSR$,$ ASR, BRBC$,$ BRBS$,$ JMP$,$ RJMP$,$ CALL, RCALL, RET, RETI, MOV, IN$,$ OUT, LDI, LDS$,$ PUSH, POP, NOP, STS$)$