# Category Archives: Computer Organization & Architecture

Data transfer instructions are the instructions that transfer data in the microprocessor. They are also called copy instructions. Here is the following is the table showing… Read More
Prerequisite – 8085 program to find 1’s and 2’s complement of 8-bit number Problem – – Write a program to find 1’s and 2’s complement… Read More
Problem – Write a program to find 1’s and 2’s complement of 8-bit number where starting address is 2000 and the number is stored at… Read More
Problem – Write a program to subtract two 16-bit numbers where starting address is 2000 and the numbers are at 3000 and 3002 memory address… Read More
Problem – Write a program to add two 16-bit numbers where starting address is 2000 and the numbers are at 3000 and 3002 memory address… Read More
Logical instructions are the instructions that perform basic logical operations such as AND, OR, etc. In the 8085 microprocessor, the destination operand is always the… Read More
Problem – Write a program to multiply two 16-bit numbers where starting address is 2000 and the numbers are at 3000 and 3002 memory address… Read More
Problem – Write an assembly language program in 8085 microprocessor to find square root of a number. Example – Assumptions – Number, whose square root… Read More
Prerequisite – Flag register in 8085 microprocessor The Flag register is a Special Purpose Register. Depending upon the value of result after any arithmetic and… Read More
Arithmetic Instructions are the instructions which perform basic arithmetic operations such as addition, subtraction and a few more. In 8085 microprocessor, the destination operand is… Read More
Memory is the most essential element of a computing system because without it computer can’t perform simple tasks. Computer memory is of two basic types… Read More
Problem: Write an assembly language program to add two 16 bit numbers by using:  8-bit operation 16-bit operation Example: 1. Addition of 16-bit numbers using… Read More
Problem: Write an assembly language program to count the number of ones in the contents of register B and store the result at memory location… Read More
Problem – Write an assembly language program for calculating the factorial of a number using 8085 microprocessor. Example – Input : 04H Output : 18H… Read More
Problem – Write an assembly level program in 8085 microprocessor to exchange a block of 4 bytes starting from address 2001 with data starting from… Read More