Set to 1 if the entire ALU result is exactly zero.
The CPU reads the instruction opcode from memory.
These instructions copy data from a source location to a destination location without altering the source contents. MOV A, B (Move the contents of register B to register A)
8085 Microprocessor Architecture Guide – A detailed PDF version of Gaonkar's guide.
In the early days of computing, machines were massive, room-sized, and used vacuum tubes to process information. As technology advanced, the size of computers decreased, and their capabilities increased. The invention of the microprocessor revolutionized the industry, enabling the creation of smaller, faster, and more efficient computers. microprocessor 8085 ppt by gaonkar free
Can be disabled or ignored by the programmer using specific commands ( DI - Disable Interrupt).
Years later, when Rahul looked back on his journey, he realized that the 8085 had been more than just a microprocessor – it was a catalyst for innovation. The 8085 had empowered him and countless others to create something from scratch, pushing the boundaries of what was thought possible.
While the book itself is the primary source, many educators have created PowerPoint presentations based on it, effectively distilling its key concepts into digestible visual slides.
DC power supply, a major improvement over its predecessor, the 8080, which required three separate voltages. The "5" in 8085 signifies the use of this single Set to 1 if the entire ALU result is exactly zero
Internal storage locations accessible by the CPU.
): To save physical pins on the 40-pin package, the lower 8 bits of the address bus are multiplexed (shared) with the 8-bit data bus.
Gaonkar's PPT on the 8085 microprocessor offers several benefits to users, including:
Ramesh Gaonkar’s textbook, is the definitive resource for understanding the 8085 microprocessor. You can find various presentation materials and digital versions of this content for free across several educational platforms. Free PPT & Document Resources MOV A, B (Move the contents of register
An 8-bit register containing 5 active status flags updated after ALU operations:
The time required to complete one operation of accessing memory or an I/O device (e.g., Opcode Fetch, Memory Read). An instruction cycle consists of 1 to 5 machine cycles.
Requires a single +5V DC supply (an upgrade from the 8080, which required multiple voltages). 2. Hardware Architecture and Pin Configuration
The external device must supply the interrupt address over the data bus (e.g., INTR ). Priority and Vector Table Interrupt Name Vector Address Vector Type TRAP 1 (Highest) Non-Maskable 0024H RST 7.5 003CH RST 6.5 0034H RST 5.5 002CH INTR 5 (Lowest) Supplied by user Non-Vectored 6. Real-World Applications and Legacy Interfacing