Hi people can someone explain this code to me clearly, this is the simplest code I could possibly get I just want to ask how it works hope you can help me. By the way this code asks for an uppercase letter and will convert it to its lowercase equivalent. Can someone translate to me what exactly each lines of code does?? Well some lines already have comments but still I cannot relate it to the other lines without comments so it's quite confusing...please please.. I am new to assembly programming please help me, thank you!
code segment assume cs:code, ds:code org 100h start: mov ah,09h ;display string mov dx, offset msg1 int 21h mov ah,01h ;ask user int 21h add al,20h ;converts uppercase to lowercase mov bl,al mov ah,02 mov dl,0ah int 21h mov ah,02 mov dl,0dh int 21h mov ah,09h ;display string mov dx, offset msg2 int 21h mov dl,bl ; mov dl,al ;lowercase equivalent mov ah,02 ;display the value of dl int 21h int 20h msg1:db 'enter uppercase letter: $' msg2:db 'lowercase equivalent: $' code ends end start
Edited 3 Years Ago by king03: yes