Assignment No. 3

section .data
msg1 db 10,13,"Enter a string:"
len1 equ $-msg1

section .bss

str1 resb 200
result resb 16
section .text
global _start
_start:
;display
mov Rax,1
mov Rdi,1
mov Rsi,msg1
mov Rdx,len1
syscall
;store string
mov rax,0
mov rdi,0
mov rsi,str1
mov rdx,200
syscall
call display
;exit system call
mov Rax ,60
mov Rdi,0
syscall
%macro dispmsg 2
mov Rax,1
mov Rdi,1
mov rsi,%1
mov rdx,%2
syscall
%endmacro
display:
mov rbx,rax
mov rdi,result
mov cx,16
up1:
rol rbx,04
mov al,bl
and al,0fh
cmp al,09h
jg add_37
add al,30h
jmp skip
add_37:

add al,37h
skip:
mov [rdi],al
inc rdi
dec cx
jnz up1
dispmsg result,16
ret