A.位寻址
B.立即寻址
C.相对寻址
D.变址寻址

A.ORLA，R3
B.ADDA，R4
C.DAA
D.ANLA，R2

A.JNZ.65H
B.JC.40H
C.CLR.C
D.NOP

A.MOV@DPTR，A
B.MOVCA，@A+PC
C.MOVX@Ri，A
D.MOVA，@Ri

A.PUSHACC
B.MULAB
C.JNC35H
D.XCHA，R4

A.PUSHACC
B.JNC35H
C.XCHA，R4
D.MULAB

A.LJMP3000H
B.MOVXA，@R0
C.ADDCA，#50H
D.XCHA，40H

A.ADDA，30H
B.ANLA，@R2
C.CJNEA，#80H，40H
D.MOVR4，20H

A.INCR1
B.ORLA，R3
C.MOVC，30H
D.DIVAB

A.F9H
B.F8H
C.FAH
D.06H

A.LCALL4005H
B.DJNZ10H，05H
C.CJNEA，#18H
D.JNZFCH