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memory location specified by the contents of the register pair. Example: STAX B. Page 13. Data Transfer Instructions. Opcode. Program counter is a 16-bit register. Instruction Set. • 8085 instruction set consists of the following instructions: • Data moving instructions. • Arithmetic - It can use to load or transfer data from the registers by using instructions. Accumulator: The accumulator (A) is an 8-bit register that is part of ALU. It is The CPU consists of ALU (Arithmetic and Logic Unit), Register unit and control unit. The. CPU retrieves stored instructions and data word from memory; it also 5.2 Pin Description of 8085. 5.3 Instruction Set of 8085 Microprocessor. 5.4 Timing Diagram for 8085 Instructions. 5.4.1 Timing Diagram of MOV reg, M.There are 6 general purpose registers in 8085 processor, i.e. B, C, D, E, H & L. Each register can hold 8-bit data. These registers can work in pair to hold 16- Apart from accumulator 8085 consists of six special types of registers called. General Purpose Registers. These general-purpose registers are used to hold data The 8085/8080A has six general-purpose registers to store 8-bit data; these are identified as B,C,D,E,H, and L as shown in the figure.