附录MCS51单片机指令表课件

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1、附录附录 MCS-51MCS-51单片机指令表单片机指令表附录附录 MCS-51MCS-51单片机指令表单片机指令表指令类型指令类型指令代码指令代码操作数操作数操作说明操作说明字节数字节数机器周机器周期数期数数据传送类数据传送类(15(15条条)MOVMOVA A，#data#dataAdataAdata2 21 1MOVMOVRnRn，#data#dataRndataRndata2 21 1MOVMOVRiRi，#data#data(Ri)data(Ri)data2 22 2MOVMOVA A，directdirectA(direct)A(direct)2 21 1MOVMOVdirectd

2、irect，A A(direct)A(direct)A2 21 1MOVMOVRnRn，directdirectRn(direct)Rn(direct)2 21 1MOVMOVRiRi，dircetdircet(Ri)(direct)(Ri)(direct)2 22 2MOVMOVdirectdirect，directdirect(direct)(dire(direct)(direct)ct)3 32 2MOVMOVdirectdirect，#data#data(direct)#data(direct)#data3 32 2MOVMOVA A，RnRnA RnA Rn1 11 1MOVMOVR

3、nRn，A ARnARnA1 11 1MOVMOVdirectdirect，RnRn(direct)Rn(direct)Rn2 21 1MOVMOVA A，RiRiARiARi1 11 1MOVMOVRiRi，A A(Ri)A(Ri)A1 11 1MOVMOVdirectdirect，RiRi(direct)(Ri)(direct)(Ri)2 22 2附录附录 MCS-51MCS-51单片机指令表单片机指令表1616位数据传送位数据传送MOVMOVDPTRDPTR，#data16#data16DPTR#data16DPTR#data163 32 2外部外部ROMROM数据传数据传送送MOVCM

4、OVCA A，A+PCA+PCA(A+PC)A(A+PC)1 12 2MOVCMOVCA A，A+DPTRA+DPTRA(A+DPTR)A(A+DPTR)，PCPC+1PCPC+11 12 2外部外部RAMRAM数据传数据传送送MOVXMOVXA A，RiRiA(Ri)A(Ri)1 12 2MOVXMOVXRiRi，A A(Ri)A(Ri)A1 12 2MOVXMOVXA A，DPTRDPTRA(DPTR)A(DPTR)1 12 2MOVXMOVXDPTRDPTR，A A(DPTR)A(DPTR)A1 12 2数据交换数据交换XCHXCHA A，RnRnARnARn1 11 1XCHXCHA

5、A，directdirectAdirectAdirect1 12 2XCHXCHA A，RiRiA(Ri)A(Ri)1 11 1XCHDXCHDA A，RiRiA A3-03-0(Ri)(Ri)3-03-01 11 1SWAPSWAPA AA A7-47-4(Ri)(Ri)3-03-01 11 1堆栈操作堆栈操作PUSHPUSHdirectdirectSPSP+1SPSP+1，(SP)(direct)(SP)(direct)2 22 2POPPOPdirectdirect(SP)(direct)(SP)(direct)，SPSP-1SPSP-12 22 2加法指令加法指令ADDADDA A，R

6、nRnAA+RnAA+Rn1 11 1ADDADDA A，directdirectAA+(direct)AA+(direct)2 21 1ADDADDA A，RiRiAA+(Ri)AA+(Ri)1 11 1ADDADDA A，#data#dataAA+#dataAA+#data2 21 1ADDCADDCA A，RnRnAA+Rn+CyAA+Rn+Cy1 11 1附录附录 MCS-51MCS-51单片机指令表单片机指令表指令类型指令类型指令代码指令代码操作数操作数操作说明操作说明字节数字节数机器周机器周期数期数加法指令加法指令ADDCADDCA A，directdirectAA+(direct

7、)+CyAA+(direct)+Cy2 21 1ADDCADDCA A，RiRiAA+(Ri)+CyAA+(Ri)+Cy1 11 1ADDCADDCA A，#data#dataAA+#data+CyAA+#data+Cy2 21 1INCINCA AAA+1AA+11 11 1INCINCRnRnRnRn+1RnRn+11 11 1INCINCRiRi(Ri)(Ri)+1(Ri)(Ri)+11 11 1INCINCdirectdirect(direct)(direct)+1(direct)(direct)+12 21 1INCINCDPTRDPTRDPTRDPTR+1DPTRDPTR+11 1

8、2 2减法指令减法指令SUBBSUBBA A，RnRnAA-RnAA-Rn1 11 1SUBBSUBBA A，directdirectAA-(direct)AA-(direct)2 22 2SUBBSUBBA A，RiRiAA-(Ri)AA-(Ri)1 11 1SUBBSUBBA A，#data#dataAA-dataAA-data2 21 1DECDECA AAA-1AA-11 11 1DECDECRnRnRnRn-1RnRn-11 11 1DECDECdirectdirect(direct)(direct)-1(direct)(direct)-12 21 1DECDECRiRi(Ri)(R

9、i)-1(Ri)(Ri)-11 11 1附录附录 MCS-51MCS-51单片机指令表单片机指令表十进制调十进制调整指令整指令DADAA A若若Ac=1Ac=1或或A A的低四位大于的低四位大于9 9，AA+06HAA+06H若若Cy=1Cy=1或或A A的高四位大于的高四位大于9 9，AA+60HAA+60H1 11 1乘法指令乘法指令MULMULABABA AB=BAB=BA，形成标志，形成标志1 14 4除法指令除法指令DIVDIVABABA AB=ABB=AB，形成标志，形成标志1 14 4与运算与运算ANLANLA A，RnRnAARnAARn1 11 1ANLANLA A，dire

10、ctdirectAA(direct)AA(direct)2 21 1ANLANLA A，RiRiAA(Ri)AA(Ri)1 11 1ANLANLA A，#data#dataAA#dataAA#data2 21 1ANLANLdirectdirect，A A(direct)(direct)(direct)(direct)A A2 21 1ANLANLdirectdirect，#data#data(direct)(direct)(direct)(direct)#data#data3 32 2附录附录 MCS-51MCS-51单片机指令表单片机指令表或运算或运算ORLORLA A，RnRnAARnA

11、ARn1 11 1ORLORLA A，directdirectAA(direct)AA(direct)2 21 1ORLORLA A，RiRiAA(Ri)AA(Ri)1 11 1ORLORLA A，#data#dataAA#dataAA#data2 21 1ORLORLdirectdirect，A A(direct)(direct)A(direct)(direct)A2 21 1ORLORLdirectdirect，#data#data(direct)(direct)#d(direct)(direct)#dataata3 32 2异或运算异或运算XRLXRLA A，RnRnRnRn1 11 1

12、XRLXRLA A，directdirect(direct)(direct)2 21 1XRLXRLA A，RiRi(Ri)(Ri)1 11 1XRLXRLA A，#data#data#data#data2 21 1XRLXRLdirectdirect，A AA A2 21 1XRLXRLdirectdirect，#data#data#data#data3 32 2附录附录 MCS-51MCS-51单片机指令表单片机指令表累加器清累加器清0 0CLRCLRA AA0A01 11 1累加器取累加器取反反CPLCPLA AA/AA/A1 11 1移位指令移位指令RLRLA A循环左移循环左移1 1

13、位位1 11 1RRRRA A循环右移循环右移1 1位位1 11 1RLCRLCA A带进位循环左移带进位循环左移1 1位位1 11 1RRCRRCA A带进位循环右移带进位循环右移1 1位位1 11 1附录附录 MCS-51MCS-51单片机指令表单片机指令表指令类型指令类型指令指令代码代码操作数操作数操作说明操作说明字节数字节数机器周机器周期数期数无条件转移指令无条件转移指令LJMPLJMPaddr16addr16PCaddr16PCaddr163 32 2AJMPAJMPaddr11addr11PCPC+2PCPC+2，PCPC10-010-0addr11addr112 22 2SJMP

14、SJMPrelrelPCPC+2PCPC+2，PCPC+relPCPC+rel2 22 2JMPJMPA+DPTRA+DPTRPC+A+DPTRPC+A+DPTR1 12 2条件转移指令条件转移指令JZJZrelrel若若A=0A=0，PCPC+2+relPCPC+2+rel若若A0A0，PCPC+2PCPC+22 22 2JNZJNZrelrel若若A0A0，PCPC+2+relPCPC+2+rel若若A=0A=0，PCPC+2PCPC+22 22 2CJNECJNEA A，#data#data，relrel不相等转移不相等转移3 32 2CJNECJNEA A，directdirect，r

15、elrel不相等转移不相等转移3 32 2CJNECJNERnRn，#data#data，relrel不相等转移不相等转移3 32 2CJNECJNERiRi，#data#data，relrel不相等转移不相等转移3 32 2DJNZDJNZRnRn，relrel减减1 1条件转移条件转移2 22 2DJNZDJNZdirectdirect，relrel减减1 1条件转移条件转移3 32 2附录附录 MCS-51MCS-51单片机指令表单片机指令表子程序调用子程序调用LCALLLCALLaddr16addr16长调用，范围为长调用，范围为64KB64KB3 32 2ACALLACALLaddr

16、11addr11短调用，范围为短调用，范围为2KB2KB2 22 2子程序返回子程序返回RETRET子程序返回子程序返回1 12 2RETIRETI中断返回中断返回1 12 2空操作空操作NOPNOPPCPC+1PCPC+11 11 1附录附录 MCS-51MCS-51单片机指令表单片机指令表位操作指令位操作指令MOVMOVC C，bitbitCy(bit)Cy(bit)2 22 2MOVMOVbitbit，C C(bit)Cy(bit)Cy2 22 2CLRCLRC CC0C01 11 1CLRCLRbitbit(bit)0(bit)02 21 1SETBSETBC CC1C11 11 1S

17、ETBSETBbitbit(bit)1(bit)12 21 1ANLANLC C，bitbitCyCy(bit)CyCy(bit)2 22 2ANLANLC C，/bit/bitCyCy(/bit)CyCy(/bit)2 22 2ORLORLC C，bitbitCyCy(bit)CyCy(bit)2 22 2ORLORLC C，/bit/bitCyCy(/bit)CyCy(/bit)2 22 2CPLCPLC CC/CC/C1 11 1CPLCPLbitbit(bit)(/bit)(bit)(/bit)2 21 1附录附录 MCS-51MCS-51单片机指令表单片机指令表位操作指令位操作指令J

18、CJCrelrel若若Cy=1Cy=1，PCPC+2+relPCPC+2+rel；若若Cy=0Cy=0，PCPC+2PCPC+22 22 2JNCJNCrelrel若若Cy=0Cy=0，PCPC+2+relPCPC+2+rel；若若Cy=1Cy=1，PCPC+2PCPC+22 22 2JBJBbitbit，relrel若若(bit)=1(bit)=1，PCPC+3+relPCPC+3+rel；若若(bit)=0(bit)=0，PCPC+3PCPC+33 32 2JNBJNBbitbit，relrel若若(bit)=0(bit)=0，PCPC+3+relPCPC+3+rel；若若(bit)=1(bit)=1，PCPC+3PCPC+33 32 2JBCJBCbitbit，relrel若若(bit)=1(bit)=1，PCPC+3+relPCPC+3+rel，bit0bit0；若若(bit)=0(bit)=0，PCPC+3PCPC+33 32 2附录附录 MCS-51MCS-51单片机指令表单片机指令表