DOS 1.0 : Sends a string to standard output. The string must end with '$' (ascii 36/24h). The '$'-char is not displayed.

AH = 9
DS:DX -> String$

• The string may contain any character (ascii 0-255/00h-FFh) except the '$'-char (ascii 36/24h).
• Each char is sent as with function 02: Display character except that this function will also display a '$'-character.
• Superceded >40: Write File or Device

Local message: 'Hello'

msg db 'Hello$' mov dx, offset msg mov ah, 9 int 21h

- with new-line:

msg db 'Hello',13,10,'$'

 

If the address of the string is a far pointer:

push ds mov dx, string_segment mov ds, dx mov dx, string_offset mov ah, 9 int 21h pop ds