?? 8051指令周期表.htm
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style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><BR>1.Arithmetic
operations:<BR>instruction Byte
Cyc<BR>ADD A,@Ri 1
1 <BR>ADD A,Rn 1
1 <BR>ADD A,direct 2
1 <BR>ADD A,#data 2
1 <BR>ADDC A,@Ri 1
1 <BR>ADDC A,Rn 1
1 <BR>ADDC A,direct 2
1 <BR>ADDC A,#data 2
1 <BR>SUBB A,@Ri 1
1 <BR>SUBB A,Rn 1
1 <BR>SUBB A,direct 2
1 <BR>SUBB A,#data 2
1 <BR>INC A
1
1<BR>INC @Ri 1
1<BR>INC Rn
1
1<BR>INC DPTR 1
1<BR>INC direct 2
1<BR>INC direct
2 1<BR>DEC
A 1
1<BR>DEC @Ri
1
1<BR>DEC Rn
1 1 <BR>DEC direct
2 1<BR>MUL
AB 1
4<BR>DIV AB
1 4<BR>DA A
1
1<BR><BR>2.Logical
opreations:<BR>instruction Byte
Cyc<BR>ANL A,@Ri
1 1<BR>XRL A,@Ri
1 1<BR>ANL A,Rn
1 1<BR>XRL A,Rn
1 1<BR>ANL A,direct
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