Problem – Interface 8255 with 8085 microprocessor and write an assembly program that determines the addition of contents of port A and port B and… Read More
Category Archives: Computer Organization & Architecture
There are 2 modes in 8255 microprocessor: 1. Bit set reset (BSR) mode – This mode is used to set or reset the bits of… Read More
Problem – Write an assembly language program in 8086 microprocessor to sort a given array of n numbers using Selection Sort. Assumptions – The number… Read More
8085 Microprocessor 8085 Microprocessor is a predecessor of version 8086 Microprocessor, designed by Intel in 1976 with the help of NMOS technology. It includes a… Read More
8086 Microprocessor 8086 Microprocessor is an advanced version of 8085 Microprocessor, designed by Intel in 1976. The number 8086 denotes the IC number of this… Read More
Problem – Write a program to find the sum of a series where series starts from 3001 memory address and count of series is at… Read More
Problem – Write a program to count number of ones in the given 8-bit number use register B to display the count of ones where… Read More
Process control instructions are the instructions which control the processor’s action by setting(1) or resetting(0) the values of flag registers. Following is the table showing… Read More
Prerequisite – Segmentation Segmentation is the process in which the main memory of the computer is logically divided into different segments and each segment has… Read More
Historically there have been 2 types of Computers: Fixed Program Computers – Their function is very specific and they couldn’t be reprogrammed, e.g. Calculators. Stored… Read More
Prerequisite – Basic Computer Instructions, Instruction Formats An instruction format defines the different component of an instruction. The main components of an instruction are opcode (which… Read More
Problem – Write a program to swap two 16-bit numbers using direct addressing mode where starting address is 2000 and the first 16-bit number is… Read More
Problem – Write a program to swap two 8-bit numbers using direct addressing mode where starting address is 2000 and the first 8-bit number is… Read More
1. Problem – Write the 8085 instructions which reset the accumulator. Solution – There are 4 instructions to reset the accumulator in 8085. These instructions… Read More
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