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5 Pract

This document is an assembly language program that implements a simple calculator with options for addition, subtraction, multiplication, and division. It utilizes system calls for input and output, and defines procedures for each arithmetic operation. The program continuously prompts the user for a choice until they decide to exit.

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Anjum Maner
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29 views2 pages

5 Pract

This document is an assembly language program that implements a simple calculator with options for addition, subtraction, multiplication, and division. It utilizes system calls for input and output, and defines procedures for each arithmetic operation. The program continuously prompts the user for a choice until they decide to exit.

Uploaded by

Anjum Maner
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as ODT, PDF, TXT or read online on Scribd
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Practical no.

5
%macro scall 4
mov rax,%1
mov rdi,%2
mov rsi,%3
mov rdx,%4
syscall
%endmacro
section .data
arr dq 000000000000003h,0000000000000002h
n equ 2
menu db 10d,13d,
db 10d,13d,"1. Addition"
db 10d,13d,"2. Subtraction"
db 10d,13d,"3. Multiplication"
db 10d,13d,"4. Division"
db 10d,13d,"5. Exit"
db 10d,13d,"Enter your Choice: "
menu_len equ $-menu
m1 db 10d,13d,"Addition: "
l1 equ $-m1
m2 db 10d,13d,"Substraction: "
l2 equ $-m2
m3 db 10d,13d,"Multiplication: "
l3 equ $-m3
m4 db 10d,13d,"Division: "
l4 equ $-m4
section .bss
answer resb 16 ;to store the result of operation
choice resb 2
section .text
global _start:
_start:
up: scall 1,1,menu,menu_len
scall 0,0,choice,2
cmp byte[choice],'1'
je case1
cmp byte[choice],'2'
je case2
cmp byte[choice],'3'
je case3
cmp byte[choice],'4'
je case4
cmp byte[choice],'5'
je case5
case1: scall 1,1,m1,l1
call addition
jmp up
case2: scall 1,1,m2,l2
call substraction
jmp up
case3: scall 1,1,m3,l3
call multiplication
jmp up
case4: scall 1,1,m4,l4
call division
jmp up
case5: mov rax,60
mov rdi,0
syscall
;procedures for arithmetic and logical operations
addition:
mov rcx,n
dec rcx
mov rsi,arr
mov rax,[rsi]
up1: add rsi,8
mov rbx,[rsi]
add rax,rbx
loop up1
call display
ret
substraction:
mov rcx,n
dec rcx
mov rsi,arr
mov rax,[rsi]
up2: add rsi,8
mov rbx,[rsi]
sub rax,rbx
loop up2
call display
ret
multiplication:
mov rcx,n
dec rcx
mov rsi,arr
mov rax,[rsi]
up3: add rsi,8
mov rbx,[rsi]
mul rbx
loop up3
call display
ret
division:
mov rcx,n
dec rcx

mov rsi,arr
mov rax,[rsi]
up4: add rsi,8
mov rbx,[rsi]
mov rdx,0
div rbx
loop up4
call display
ret
or:
mov rcx,n
dec rcx
mov rsi,arr
mov rax,[rsi]
up6: add rsi,8
mov rbx,[rsi]
or rax,rbx
loop up6
call display
ret
xor:
mov rcx,n
dec rcx
mov rsi,arr
mov rax,[rsi]
up7: add rsi,8
mov rbx,[rsi]
xor rax,rbx
loop up7
call display
ret
and:
mov rcx,n
dec rcx
mov rsi,arr
mov rax,[rsi]
up8: add rsi,8
mov rbx,[rsi]
and rax,rbx
loop up8
call display
ret
display:
mov rsi,answer+15
mov rcx,16
cnt: mov rdx,0
mov rbx,16
div rbx
cmp dl,09h
jbe add30
add dl,07h
add30: add dl,30h
mov [rsi],dl
dec rsi
dec rcx
jnz cnt
scall 1,1,answer,16
ret

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