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 .MODEL SMALL
.STACK 100H
.DATA
PROMPT  DB  "The 256 ASCII Characters are  ",0AH,"$"
nxtline DB 0AH,"$"
.CODE
start:
     MOV AX, @DATA               ; initialize DS 
     MOV DS, AX
     LEA DX, PROMPT              ; load and print PROMPT 
     MOV AH, 9h
     INT 21H
     MOV Cl, 0                   ; initialize CL
     MOV AH, 2                   ; set output function  
     LP:                         ; loop label
     Mov DL, CL
     MOV AH ,2H                  ; print ASCII character
     INT 21H                    
     LEA DX, nxtline
     MOV AH,9H
     INT 21H
     INC CL                      ; Increment CL
     CMP CL , 255D             
     JNE LP                      ; jump to label LP if CL is 255

 MOV AX,4C00H
 INT 21H
 END start