As an 8-bit, 40-pin IC, the 8085 is the perfect starting point to learn how CPU, memory, and I/O interact.
LXI rp, dword (Load 16-bit immediate data into a register pair) LDA address (Load Accumulator directly from memory) Arithmetic Instructions
– Visual breakdown of the S, Z, AC, P, and CY positions.
The 16-bit memory address where the target data resides is explicitly stated in the instruction. microprocessor 8085 ppt by gaonkar free
Gaonkar emphasizes the internal block diagram, which is the heart of any 8085 presentation.
Indicates that data on the data bus is to be written into the selected memory or I/O location.
Used to perform boolean operations, modify specific bits, or perform data comparisons. ANA r (Logically AND register with Accumulator) XRA r (Logically XOR register with Accumulator) ORA r (Logically OR register with Accumulator) CMP r (Compare register with Accumulator) Branching Instructions As an 8-bit, 40-pin IC, the 8085 is
– Diagrammatic view of the Data Bus, Address Bus, and Control Bus separation.
The CPU automatically branches to a pre-defined, fixed memory address upon receiving the signal.
For a report or presentation based on Ramesh S. Gaonkar's authoritative text, Gaonkar emphasizes the internal block diagram, which is
: Changing program flow conditionally or unconditionally (e.g., JMP , JC , CALL , RET ).
– A clear image showing the 40-pin DIP layout.
Internal storage locations accessible by the CPU.
