DIVISION OF TWO 8 BIT NUMBERS

AIM:

     To perform the division of two 8 bit numbers using 8085.

     

ALGORITHM:

     1) Start the program by loading HL register pair with address of memory location.

     2) Move the data to a register(B register).

     3) Get the second data and load into Accumulator.

     4) Compare the two numbers to check for carry.

     5) Subtract the two numbers.

     6) Increment the value of carry .

     7) Check whether repeated subtraction is over and store the value of product and

        carry in memory location.

     8) Terminate the program.

     

PROGRAM:

               LXI  H, 4150

               MOV  B,M      Get the dividend in B – reg.

               MVI  C,00       Clear C – reg for qoutient

               INX  H

               MOV A,M       Get the divisor in A – reg.

NEXT:     CMP B             Compare A - reg with register B.

               JC  LOOP         Jump on carry to LOOP

               SUB  B             Subtract A – reg from B- reg.

               INR C               Increment content of register C.

               JMP NEXT      Jump to NEXT

 LOOP:    STA 4152         Store the remainder in Memory

               MOV A,C

               STA 4153         Store the quotient in memory

               HLT                  Terminate the program.

OBSERVATION:   

    Input:

F (4150)

FF (4251)

    Output:

01 (4152) ---- Remainder

    FE (4153) ---- Quotient

   

RESULT:

Thus the program to divide two 8-bit numbers was executed.