Opcode(bin) Opcode Instruction Bytes Cycles -------------------------------------------------------------- 00000000 00 NOP 1 1 00000001 01 AJMP addr11 2 2 00000010 02 LJMP addr16 3 2 00000011 03 RR A 1 1 00000100 04 INC A 1 1 00000101 05 INC direct 2 1 00000110 06 INC @R0 1 1 00000111 07 INC @R1 1 1 00001000 08 INC R0 1 1 00001001 09 INC R1 1 1 00001010 0A INC R2 1 1 00001011 0B INC R3 1 1 00001100 0C INC R4 1 1 00001101 0D INC R5 1 1 00001110 0E INC R6 1 1 00001111 0F INC R7 1 1 00010000 10 JBC bitaddr,reladdr 3 2 00010001 11 ACALL addr11 2 2 00010010 12 LCALL addr16 3 2 00010011 13 RRC A 1 1 00010100 14 DEC A 1 1 00010101 15 DEC direct 2 1 00010110 16 DEC @R0 1 1 00010111 17 DEC @R1 1 1 00011000 18 DEC R0 1 1 00011001 19 DEC R1 1 1 00011010 1A DEC R2 1 1 00011011 1B DEC R3 1 1 00011100 1C DEC R4 1 1 00011101 1D DEC R5 1 1 00011110 1E DEC R6 1 1 00011111 1F DEC R7 1 1 00100000 20 JB bitaddr,reladdr 3 2 00100001 21 AJMP addr11 2 2 00100010 22 RET 1 2 00100011 23 RL A 1 1 00100100 24 ADD A,#data 2 1 00100101 25 ADD A,direct 2 1 00100110 26 ADD A,@R0 1 1 00100111 27 ADD A,@R1 1 1 00101000 28 ADD A,R0 1 1 00101001 29 ADD A,R1 1 1 00101010 2A ADD A,R2 1 1 00101011 2B ADD A,R3 1 1 00101100 2C ADD A,R4 1 1 00101101 2D ADD A,R5 1 1 00101110 2E ADD A,R6 1 1 00101111 2F ADD A,R7 1 1 00110000 30 JNB bitaddr,reladdr 3 2 00110001 31 ACALL addr11 2 2 00110010 32 RETI 1 2 00110011 33 RLC A 1 1 00110100 34 ADDC A,#data 2 1 00110101 35 ADDC A,direct 2 1 00110110 36 ADDC A,@R0 1 1 00110111 37 ADDC A,@R1 1 1 00111000 38 ADDC A,R0 1 1 00111001 39 ADDC A,R1 1 1 00111010 3A ADDC A,R2 1 1 00111011 3B ADDC A,R3 1 1 00111100 3C ADDC A,R4 1 1 00111101 3D ADDC A,R5 1 1 00111110 3E ADDC A,R6 1 1 00111111 3F ADDC A,R7 1 1 01000000 40 JC reladdr 2 2 01000001 41 AJMP addr11 2 2 01000010 42 ORL direct,A 2 1 01000011 43 ORL direct,#data 3 2 01000100 44 ORL A,#data 2 1 01000101 45 ORL A,direct 2 1 01000110 46 ORL A,@R0 1 1 01000111 47 ORL A,@R1 1 1 01001000 48 ORL A,R0 1 1 01001001 49 ORL A,R1 1 1 01001010 4A ORL A,R2 1 1 01001011 4B ORL A,R3 1 1 01001100 4C ORL A,R4 1 1 01001101 4D ORL A,R5 1 1 01001110 4E ORL A,R6 1 1 01001111 4F ORL A,R7 1 1 01010000 50 JNC reladdr 2 2 01010001 51 ACALL addr11 2 2 01010010 52 ANL direct,A 2 1 01010011 53 ANL direct,#data 3 2 01010100 54 ANL A,#data 2 1 01010101 55 ANL A,direct 2 1 01010110 56 ANL A,@R0 1 1 01010111 57 ANL A,@R1 1 1 01011000 58 ANL A,R0 1 1 01011001 59 ANL A,R1 1 1 01011010 5A ANL A,R2 1 1 01011011 5B ANL A,R3 1 1 01011100 5C ANL A,R4 1 1 01011101 5D ANL A,R5 1 1 01011110 5E ANL A,R6 1 1 01011111 5F ANL A,R7 1 1 01100000 60 JZ reladdr 2 2 01100001 61 AJMP addr11 2 2 01100010 62 XRL direct,A 2 1 01100011 63 XRL direct,#data 3 2 01100100 64 XRL A,#data 2 1 01100101 65 XRL A,direct 2 1 01100110 66 XRL A,@R0 1 1 01100111 67 XRL A,@R1 1 1 01101000 68 XRL A,R0 1 1 01101001 69 XRL A,R1 1 1 01101010 6A XRL A,R2 1 1 01101011 6B XRL A,R3 1 1 01101100 6C XRL A,R4 1 1 01101101 6D XRL A,R5 1 1 01101110 6E XRL A,R6 1 1 01101111 6F XRL A,R7 1 1 01110000 70 JNZ reladdr 2 2 01110001 71 ACALL addr11 2 2 01110010 72 ORL C,bitaddr 2 2 01110011 73 JMP @A+DPTR 1 2 01110100 74 MOV A,#data 2 1 01110101 75 MOV direct,#data 3 2 01110110 76 MOV @R0,#data 2 1 01110111 77 MOV @R1,#data 2 1 01111000 78 MOV R0,#data 2 1 01111001 79 MOV R1,#data 2 1 01111010 7A MOV R2,#data 2 1 01111011 7B MOV R3,#data 2 1 01111100 7C MOV R4,#data 2 1 01111101 7D MOV R5,#data 2 1 01111110 7E MOV R6,#data 2 1 01111111 7F MOV R7,#data 2 1 10000000 80 SJMP reladdr 2 2 10000001 81 AJMP addr11 2 2 10000010 82 ANL C,bitaddr 2 1 10000011 83 MOVC A,@A+PC 1 1 10000100 84 DIV AB 1 4 10000101 85 MOV direct,direct 3 1 10000110 86 MOV direct,@R0 2 2 10000111 87 MOV direct,@R1 2 2 10001000 88 MOV direct,R0 2 2 10001001 89 MOV direct,R1 2 2 10001010 8A MOV direct,R2 2 2 10001011 8B MOV direct,R3 2 2 10001100 8C MOV direct,R4 2 2 10001101 8D MOV direct,R5 2 2 10001110 8E MOV direct,R6 2 2 10001111 8F MOV direct,R7 2 2 10010000 90 MOV DPTR,#data16 3 2 10010001 91 ACALL addr11 2 2 10010010 92 MOV bitaddr,C 2 2 10010011 93 MOVC A,@A+DPTR 1 2 10010100 94 SUBB A,#data 2 1 10010101 95 SUBB A,direct 2 1 10010110 96 SUBB A,@R0 1 1 10010111 97 SUBB A,@R1 1 1 10011000 98 SUBB A,R0 1 1 10011001 99 SUBB A,R1 1 1 10011010 9A SUBB A,R2 1 1 10011011 9B SUBB A,R3 1 1 10011100 9C SUBB A,R4 1 1 10011101 9D SUBB A,R5 1 1 10011110 9E SUBB A,R6 1 1 10011111 9F SUBB A,R7 1 1 10100000 A0 ORL C,/bitaddr 2 1 10100001 A1 AJMP addr11 2 2 10100010 A2 MOV C,bitaddr 2 1 10100011 A3 INC DPTR 1 2 10100100 A4 MUL AB 1 4 10100101 A5 INVALID 1 1 10100110 A6 MOV @R0,direct 2 2 10100111 A7 MOV @R1,direct 2 2 10101000 A8 MOV R0,direct 2 2 10101001 A9 MOV R1,direct 2 2 10101010 AA MOV R2,direct 2 2 10101011 AB MOV R3,direct 2 2 10101100 AC MOV R4,direct 2 2 10101101 AD MOV R5,direct 2 2 10101110 AE MOV R6,direct 2 2 10101111 AF MOV R7,direct 2 2 10110000 B0 ANL C,/bitaddr 2 1 10110001 B1 ACALL addr11 2 2 10110010 B2 CPL bitaddr 2 1 10110011 B3 CPL C 1 1 10110100 B4 CJNE A,#data,reladdr 3 2 10110101 B5 CJNE A,direct,reladdr 3 2 10110110 B6 CJNE @R0,#data,reladdr 3 2 10110111 B7 CJNE @R1,#data,reladdr 3 2 10111000 B8 CJNE R0,#data,reladdr 3 2 10111001 B9 CJNE R1,#data,reladdr 3 2 10111010 BA CJNE R2,#data,reladdr 3 2 10111011 BB CJNE R3,#data,reladdr 3 2 10111100 BC CJNE R4,#data,reladdr 3 2 10111101 BD CJNE R5,#data,reladdr 3 2 10111110 BE CJNE R6,#data,reladdr 3 2 10111111 BF CJNE R7,#data,reladdr 3 2 11000000 C0 PUSH direct 2 2 11000001 C1 AJMP addr11 2 2 11000010 C2 CLR bitaddr 2 1 11000011 C3 CLR C 1 1 11000100 C4 SWAP A 1 1 11000101 C5 XCH A,direct 2 1 11000110 C6 XCH A,@R0 1 1 11000111 C7 XCH A,@R1 1 1 11001000 C8 XCH A,R0 1 1 11001001 C9 XCH A,R1 1 1 11001010 CA XCH A,R2 1 1 11001011 CB XCH A,R3 1 1 11001100 CC XCH A,R4 1 1 11001101 CD XCH A,R5 1 1 11001110 CE XCH A,R6 1 1 11001111 CF XCH A,R7 1 1 11010000 D0 POP direct 2 2 11010001 D1 ACALL addr11 2 2 11010010 D2 SETB bitaddr 2 1 11010011 D3 SETB C 1 1 11010100 D4 DA A 1 1 11010101 D5 DJNZ direct,reladdr 3 2 11010110 D6 XCHD A,@R0 1 1 11010111 D7 XCHD A,@R1 1 1 11011000 D8 DJNZ R0,reladdr 2 2 11011001 D9 DJNZ R1,reladdr 2 2 11011010 DA DJNZ R2,reladdr 2 2 11011011 DB DJNZ R3,reladdr 2 2 11011100 DC DJNZ R4,reladdr 2 2 11011101 DD DJNZ R5,reladdr 2 2 11011110 DE DJNZ R6,reladdr 2 2 11011111 DF DJNZ R7,reladdr 2 2 11100000 E0 MOVX A,@DPTR 1 2 11100001 E1 AJMP addr11 2 2 11100010 E2 MOVX A,@R0 1 2 11100011 E3 MOVX A,@R1 1 2 11100100 E4 CLR A 1 1 11100101 E5 MOV A,direct 2 1 11100110 E6 MOV A,@R0 1 1 11100111 E7 MOV A,@R1 1 1 11101000 E8 MOV A,R0 1 1 11101001 E9 MOV A,R1 1 1 11101010 EA MOV A,R2 1 1 11101011 EB MOV A,R3 1 1 11101100 EC MOV A,R4 1 1 11101101 ED MOV A,R5 1 1 11101110 EE MOV A,R6 1 1 11101111 EF MOV A,R7 1 1 11110000 F0 MOVX @DPTR,A 1 2 11110001 F1 ACALL addr11 2 2 11110010 F2 MOVX @R0,A 1 2 11110011 F3 MOVX @R1,A 1 2 11110100 F4 CPL A 1 1 11110101 F5 MOV direct,A 2 1 11110110 F6 MOV @R0,A 1 1 11110111 F7 MOV @R1,A 1 1 11111000 F8 MOV R0,A 1 1 11111001 F9 MOV R1,A 1 1 11111010 FA MOV R2,A 1 1 11111011 FB MOV R3,A 1 1 11111100 FC MOV R4,A 1 1 11111101 FD MOV R5,A 1 1 11111110 FE MOV R6,A 1 1 11111111 FF MOV R7,A 1 1