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assemblycharacter-encodingx86dostasm

How to print a smiley face character in assembly?

What are the lines of code to output a smiley face character in assembly (TASM)?

I know in order to print a dot, it requires:

MOV AH, 2
DL, '.'
INT 21h

and in order to print backspace, 

MOV AH, 6
MOV DL, 8
INT 21H

How about a smiley face? I know it exists because it appears when there are garbage values.

Solution

  • In the DOS codepage 437 (and most others) the white smiley face is code #1, and the black one is code #2. So these are the values you need to put into DL.

    MOV AH, 6
MOV DL, 1; print ☺
INT 21H