Problem Write a program for 8051 microcontroller to unpack a number stored in memory location 30h. Store the lower nibble in 31h and higher nibble in 32h. Algorithm Step 1: Load the number in accumulator. Step 2: Mask the lower nibble to unpack. Step 3: Store the unmasked lower digit in internal memory location. Step […]
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In this article two Assembly language programs for 8051 microcontroller are explained to find 2’s complement of an 8 bit Number. 8051 Program to find 2’s complement of an 8 bit Number To find 2’s complement of a number stored in register bank Problem 1 Write an assembly language program to find 2’s complement of
Problem Write an assembly language program for microcontroller 8051 to arrange numbers in descending order from an array of 10 numbers. Assume array of the ten bytes is stored in external memory of 8051 microcontroller from memory location 4000H. Algorithm To arrange the numbers in descending order, first compare two numbers. If first number <
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Problem Write an assembly language program for microcontroller 8051 to arrange numbers in ascending order from an array of 10 numbers. Assume array of the ten bytes is stored in external memory of 8051 microcontroller from memory location 4000H. Algorithm To arrange the numbers in ascending order, first compare two numbers. If first number >
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Interrupts are mechanisms that allow the microcontroller to pause its current execution and jump to a specific subroutine to handle an event, improving real-time control and multitasking capabilities. The 8051 microcontroller is a widely used microcontroller architecture that features several interrupt sources to handle various events and enhance its responsiveness. Here are the different interrupts
Problem Write an assembly language program for microcontroller 8051 to find smallest number from an array of 10 numbers. Assume array of the ten bytes is stored in internal memory of 8051 microcontroller from memory location 50H and Store smallest number in memory location 60H. Algorithm Step 1: Initialize byte counter and memory pointer to
8051 Program to Find the Smallest Number in An Array Stored in Internal Memory Read More »
Problem Write an assembly language program for microcontroller 8051 to find largest number from an array of 10 numbers. Assume array of the ten bytes is stored in internal memory of 8051 microcontroller from memory location 50H and Store largest number in memory location 60H. Algorithm Step 1: Initialize byte counter and memory pointer to
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Problem Write an ALP for 8051 microcontroller to divide two numbers. Assume dividend is stored in internal memory location 40H and divisor in memory location 41H. Store the quotient and remainder of the result in memory location 42H and 43H respectively. Algorithm Step 1: Load dividend from internal memory 40h to accumulator. Step 2: Load
Problem Write an ALP for 8051 microcontroller to multiply two numbers. Assume multiplicand is stored in internal memory location 40H and multiplier in memory location 41H. Store the LB and HB of the result in memory location 42H and 43H respectively. Algorithm Step 1: Load multiplicand from internal memory 40h to accumulator. Step 2: Load
Problem Two 16-bit numbers are stored in register bank 2 as follows. R0 – LSB of first number R1 – MSB of first number R2 – LSB of second number R3 – MSB of second number Write an assembly language program for 8051 microcontroller to subtract second number from first and store the result in
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