Im trying to make a ball with Assembly 8086 NASM using the INT 10H and DOSBOX, in UBUNTU

like this :

 MOV AH, 0Ch ; function to write the pixel
 MOV AL, 0Fh ; color of the pixel (set to white)
 MOV BH, 00h ; the page number (0 because its the only page im working on)
 MOV CX, 160 ; X Position on the screen
 MOV DX, 100 ; Y Position on the screen
 INT 10h

Im working on a 360x200 video mode, so the pixel shows up at the middle here is how its working : https://imgur.com/BS62ohp

When i assign the values directly to CX and DX (x and y positions), the pixel shows up pretty fine once i turn it into an initialized variable, it disappear and the screen is completely black. No bugs no warnings whatsoever here is it turned into variables :

segment .data
  BALL_X DW 160
  BALL_Y DW 100

segment .text
  global main

main:
  MOV AH, 0Ch
  MOV AL, 0Fh
  MOV BH, 00h
  **MOV CX, [BALL_X]**
  **MOV DX, [BALL_Y]**
  INT 10h

i have tried "[BALL_X]", "word [BALL_X]", "BALL_X". here is when i turn it into variables : https://imgur.com/6jXqoaq

Here is the full code :

segment .data
  BALL_X DW 300
  BALL_Y DW 170

segment .text
  global main

main:
  ; setting the video mode to 360x200
  MOV AH, 00h
  MOV Al, 13h
  INT 10h
  
  ; setting the background color to Black
  MOV AH, 0Bh
  MOV BH, 00h
  MOV BL, 0h
  INT 10h

  ; the pixel code
  MOV AH, 0Ch
  MOV AL, 0Fh
  MOV BH, 00h
  MOV CX, word [BALL_X]
  MOV DX, word [BALL_Y]
  INT 10h