PermalinkProgram to Calculate the Sum of Ten Numbers in Assembly Language
PermalinkCode
[org 0x100]
mov ax,0
mov bx,0
l1:
add ax,[num1+bx] ;Addition will be stored in ax and in num1 array wise iteration will take place
add bx,2
cmp bx,20
jne l1
mov [total],ax
mov ax,0x4c00
int 0x21
num1: dw 10,20,30,40,50,10,20,30,40,50
total: dw 0
PermalinkExplanation:
This assembly code calculates the sum of ten numbers stored in the
num1array.The registers
axandbxare initialized to zero.The program enters a loop labeled
l1to iterate through thenum1array.Inside the loop, it adds the value at the current index of the
num1array to the accumulatorax.The index register
bxis incremented by 2 to move to the next index of the array.After each iteration, the program compares the value of
bxwith 20 to check if it has reached the last index.If
bxis not equal to 20, the program jumps back to thel1label to continue adding the remaining numbers.Once all ten numbers have been processed, the final sum in
axis stored in the memory locationtotal.The program then terminates by setting the value of
axto 0x4c00 (indicating program termination) and making an interrupt call to the operating system.The
num1array contains the numbers to be added, and thetotalmemory location is used to store the final sum.The code efficiently calculates the sum without using a separate counter variable.
PermalinkInstructions:
PermalinkTo run the program in a debugger write
nasm file_name.asm -o file_name.comthen
afd file_name.comit will run the code written in that file
PermalinkTo View the code Written
The .lst file is generated during assembly and provides a detailed listing of the assembly source code, including memory addresses, machine code, symbol table, and debugging information, aiding in code review, debugging, and optimization.
nasm file_name.asm -l file_name.lstto make .lst file and do code review and debugging.