: You can find exhaustive lists of these commands in manuals like the 8085 Microprocessor Instruction Set (Scribd) .

: Implementing division by 2 (shifting right).

Technical papers and assembly guides often use RAR for the following tasks:

If you are studying a paper or code from a "rotate.rar" archive, you will likely see these related commands: Instruction Description Rotate Left Rotates Accumulator left; Bit 7 goes to Carry and Bit 0. RRC Rotate Right Rotates Accumulator right; Bit 0 goes to Carry and Bit 7. RAL Rotate Left through Carry →right arrow Carry; Carry →right arrow MOV A, M Move Memory Loads data from memory into the Accumulator for processing. JC / JNC Jump on Carry Used after RAR to branch based on the bit shifted out. Resources for Further Study

The instruction is an implicit addressing mode command used to rotate the bits of the Accumulator one position to the right through the Carry flag .