0067 7800      Quiz9:  mov     r0,#0
0069 C3        Quiz10: clr     c
006A 13                rrc     a
006B 5001              jnc     Quiz11
006D 08                inc     r0
006E 70F9      Quiz11: jnz     Quiz10
0070 E8                mov     a,r0
0071 22                ret