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时间:2018-09-27
《51单片机指令速查表》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、MCS-51系列单片机指令速查表算术运算指令(共24条)机器码助记符功能对标志影响字节数周期数POVACCY28~2FADDA,Rn(A)+(Rn)→A√√√√1125ADDA,direct(A)+(direct)→A√√√√2126,27ADDA,@Ri(A)+((Ri))→A√√√√1124ADDA,#data(A)+data→A√√√√2138~3FADDCA,Rn(A)+(Rn)+Cy→A√√√√1135ADDCA,direct(A)+(direct)+Cy→A√√√√2136,37ADDCA,@Ri(A)+((Ri))+Cy→A√√√√113
2、4ADDCA,#data(A)+data+Cy→A√√√√2198~9FSUBBA,Rn(A)-(Rn)-Cy→A√√√√1195SUBBA,direct(A)-(direct)-Cy→A√√√√2196,97SUBBA,@Ri(A)-((Ri))-Cy→A√√√√1194SUBBA,#data(A)-data-Cy→A√√√√2104INCA(A)+1→A√×××1108~0FINCRn(Rn)+1→Rn××××1105INCdirect(direct)+1→direct××××2106,07INC@Ri((Ri))+1→(Ri)××××11A3IN
3、CDPTR(DPTR)+1→DPTR××××1214DECA(A)-1→A√×××1118~1FDECRn(Rn)-1→Rn××××1115DECdirect(direct)-1→direct××××2116,17DEC@Ri((Ri))-1→(Ri)××××11A4MULAB(A)·(B)→AB√××√1484DIVAB(A)/(B)→AB√××√14D4DAA对A进行十进制调整√√√√11逻辑运算指令(共25条)机器码助记符功能对标志影响字节数周期数POVACCY58~5FANLA,Rn(A)∧(Rn)→A√×××1155ANLA,direct(A
4、)∧(direct)→A√×××2156,57ANLA,@Ri(A)∧((Ri))→A√×××1154ANLA,#data(A)∧data→A√×××2152ANLdirect,A(direct)∧(A)→direct××××2153ANLdirect,#data(direct)∧data→direct××××3248~4FORLA,Rn(A)∨(Rn)→A√×××1145ORLA,direct(A)∨(direct)→A√×××2146,47ORLA,@Ri(A)∨((Ri))→A√×××1144ORLA,#data(A)∨data→A√×××21y
5、earsmortgagehousing;4.mortgageregistrationformalitiesarecompleted.(D)pledge1.borrower(includingthepledgor)between18-65yearsofage,withfullcivilcapacity;2.collateral342ORLdirect,A(direct)∨(A)→direct××××2143ORLdirect,#data(direct)∨data→direct××××3268~6FXRLA,Rn(A)⊕(Rn)→A√×××1165XRLA
6、,direct(A)⊕(direct)→A√×××2166,67XRLA,@Ri(A)⊕((Ri))→A√×××1164XRLA,#data(A)⊕data→A√×××2162XRLdirect,A(direct)⊕(A)→direct××××2163XRLdirect,#data(direct)⊕data→direct××××32E4CLRA0→A√×××11F4CPLA/(A)→A××××1123RLAA循环左移一位××××1133RLCAA带进位循环左移一位××××1103RRAA循环右移一位××××1113RRCAA带进位循环右移一位××××1
7、1C4SWAPAA半字节交换××××11数据传送指令(共28条)机器码助记符功能对标志影响字节数周期数POVACCYE8~EFMOVA,Rn(Rn)→A√×××11E5MOVA,direct(direct)→A√×××21E6,E7MOVA,@Ri((Ri))→A√×××1174MOVA,#datadata→A√×××21F8~FFMOVRn,A(A)→(Rn)××××11A8--AFMOVRn,direct(direct)→Rn××××2278~7FMOVRn,#datadata→Rn××××21F5MOVdirect,A(A)→direct××××
8、2188~8FMOVdirect,Rn(Rn)→direct××××2185MOVdirect
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