How Do I Print From A Register In Assembly
NotNull 23 Posting Whiz in Training
The reason jibberish is output to the consol is because
DX is to contain the offset of a dollar-sign '$' terminated cord.
mov dx, offset msg mov ah, 0x9 int 0x21 int 0x20 msg db 'how-do-you-do globe$' To print out the value contained in the registers you will
take to convert their value into the ASCII representation
of a hexadecimal/decimal/etc.. value.
To print out the value of the AX register in hex for case:
mov ax, 0x1234 call printw int 0x20 printw: push ax shr ax, viii call printb pop ax button ax and ax, 0xff phone call printb popular ax ret printb: button ax shr al, 4 call printasc pop ax and al, 0xf phone call printasc ret printasc: add together al, 0x30 cmp al, 0x39 jle printasc_e add together al, 0x7 printasc_e: mov dl, al mov ah, 0x2 int 0x21 ret 
Source: https://www.daniweb.com/programming/software-development/threads/231029/displaying-contents-of-registers
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