; Initialize: Set up memory pointer and counter LXI H, 2000H ; HL points to the start address of the array MOV B, M ; Load array count into B DCR B ; Decrement B for loop count INX H ; HL points to the first data element MOV A, M ; Load the first data element into A LOOP: INX H ; Next element CMP M ; Compare Accumulator (A) with M JNC NEXT ; If A >= M, skip MOV A, M ; If A < M, replace A with M NEXT: DCR B ; Decrement loop counter JNZ LOOP ; If B != 0, continue checking HLT ; Stop; the largest number is now in A
A 16-bit register pointing to a memory location in R/W memory called the "Stack," used for temporary data storage during subroutines. 2. Arithmetic and Logic Unit (ALU) The ALU performs execution data computing. It carries out:
Includes the Accumulator (8-bit), six general-purpose registers (B, C, D, E, H, L), the Program Counter (16-bit), and the Stack Pointer (16-bit). Timing and Control Unit: microprocessor 8085 ppt by gaonkar
If you are building the slide deck, try structuring it this way:
To communicate with memory and I/O devices, the 8085 uses three types of buses: Data Bus (8-bit): Bidirectional, used for data transfer. Address Bus (16-bit): Unidirectional, capable of addressing up to KB of memory. Control Bus: ; Initialize: Set up memory pointer and counter
Use separate colors for the address bus (unidirectional), data bus (bidirectional), and control lines to make demultiplexing clear.
Gaonkar’s teaching style focuses on the relationship between hardware architecture and software execution. 1. Register Organization It carries out: Includes the Accumulator (8-bit), six
A comprehensive, modernized exposition of the Intel 8085 microprocessor inspired by Gaonkar’s clear pedagogical style—covering architecture, timing, instruction set, interfacing, system design examples, and hands-on labs—aimed at undergraduate computer engineering courses and embedded-systems practitioners who wish to understand legacy 8-bit microprocessors and their design principles.
The first byte is the opcode, and the second byte is an 8-bit data/address (e.g., MVI A, 32H ).
Microprocessor 8085: Architecture, Programming, and Interfacing Reference: Based on the works of Ramesh S. Gaonkar An Introduction to 8-bit Computing Slide 2: Introduction to 8085 Definition: An 8-bit, NMOS microprocessor. Key Features: 40-pin IC package. Operates on a single +5V DC supply. Max clock frequency of 3 MHz. 16-bit address bus (can address up to 64 KB of memory). 8-bit data bus. Vardhaman College of Engineering Slide 3: Internal Architecture Overview Three Main Units: ALU (Arithmetic Logic Unit):
Overall, the 8085 microprocessor is an important topic in computer science and engineering, and a PPT by Gaonkar is likely to provide a comprehensive overview of its architecture, instruction set, and applications.