Movc instruction in 8051

MOV A,ACC is not a valid Instruction. Bytes: Number of bytes required to encode the instruction. Cycles: Number of instruction cycles required to execute the instruction. Note that there are 12 oscillator cycles to one instruction cycle on a standard 8051. Encoding: Lists the byte encoding for the instruction. The next instruction, MOVC A, @A + PC, would attempt to load the accumulator with the value of RET, which is invalid. Therefore, valid entries are only from 0 to 254. 4. Boolean Instructions. The 8051 processor contains a complete Boolean processor for single-bit operations. Description: MOVC moves a byte from Code Memory into the Accumulator. The Code Memory address from which the byte will be moved is calculated by summing the value of the Accumulator with either DPTR or the Program Counter (PC). not a documented instruction. The 8051 supports 255 instructions and OpCode 0xA5 is the single OpCode that is not 8051 / 8052 Instruction Set - 8052 Microcontroller Tutorial - ACALL, ADD, ADDC, AJMP, ANL, CJNE, CLR, CPL, DA, DEC, DIV, DJNZ, INC, JB, JBC, JC, JMP, JNB, JNC, JNZ 8051 Microcontroller Instruction Set. The Microcontroller 8051 is a 8-bit microcontroller with 40 pin DIP (dual in-line package) integrated circuit. The 8051 ICs were built in HMOS, HMOS II and CHMOS technologies. 83 1 MOVC A, @A+PC 84 1 DIV AB 85 3 MOV direct, direct 86 2 MOV direct, @R0 87 2 MOV direct, @R1 88 2 MOV direct, R0 89 2 MOV Description: MOVX moves a byte to or from External Memory into or from the Accumulator. If operand1 is @DPTR, the Accumulator is moved to the 16-bit External Memory address indicated by DPTR. This instruction uses both P0 (port 0) and P2 (port 2) to output the 16-bit address and data. If operand2 is DPTR then the byte is moved from External Memory into the Accumulator. Answer: These are the instruction which can access the code memory. Below is small example for same. Description: MOVC moves a byte from Code Memory into the Accumulator. The Code Memory address from which the byte will be moved is calculated by summing the value of the Accumulator with either D THE 8051 INSTRUCTION SET All commands in alphabetic order: ACALL addr11 DIV AB LJMP addr16 RETI ADD A,