Space don''t come in ASCII characters while printing?, Assembly Language

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.MODEL SMALL
.STACK 100H

.DATA
PROMPT DB \''The 256 ASCII Characters are : $\''

.CODE
MAIN PROC
MOV AX, @DATA ; initialize DS
MOV DS, AX

LEA DX, PROMPT ; load and print PROMPT
MOV AH, 9
INT 21H

MOV CX, 256 ; initialize CX

MOV AH, 2 ; set output function
MOV DL, 0 ; initialize DL with first ASCII character

@LOOP: ; loop label
INT 21H ; print ASCII character

INC DL ; increment DL to next ASCII character
DEC CX ; decrement CX
JNZ @LOOP ; jump to label @LOOP if CX is 0

MOV AH, 4CH ; return control to DOS
INT 21H
MAIN ENDP
END MAIN

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