Problem – Write an assembly language program to sum two 8 bit numbers without using carry operation in 8085 microprocessor.
- The starting address of the program is 2000.
- Memory address of the first number is 2050.
- Memory address of the second number is 2051.
- Memory address of result is 2052.
Input: 2050: 03 : 2-51: 04 Output: 2052: 07
- Load the first number to the accumulator through memory address 2050.
- Move the content of accumulator to the register B.
- Load the second number to the accumulator through memory address 2051.
- Add the content of accumulator and register B and result will be stored at the accumulator.
- Store the result from the accumulator to the memory address 2052.
- Terminate the program.
|2003||MOV B, A||B<-A|
- LDA 2050: This instruction will load the number from memory to the accumulator.
- MOV B, A: This instruction will move the content of accumulator to the register B.
- LDA 2051: This instruction will load the number from memory to the accumulator.
- ADD B: This instruction will sum the content of the accumulator with the content of the register B.
- STA 2052: This instruction will store the content of accumulator to the memory address 2052.
- HLT: This instruction will terminate the program.
Hence we successfully sum the two 8 bit numbers without carry using 8085 microprocessor.
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