I am not sure about the mul statement and the square brackets - thanks
in advance
segment .data
X dw 10
Y dw 10
Color db 7
segment .text
;Change the video mode to 13h
xor ah, ah ;VIDEO Function 00h: Change screen
mov al, 13h ;Put the desired graphics mode into AL
int 10h ;Call VIDEO
;Prepare for writing to the video buffer
mov di, 0a000h ;Put the video segment into DI
mov es, di ; so it can easily be put into ES
xor di, di ;Start writing at coordinates (0,0)
;Plot a pixel in video mode 13h, where
;PixelAddress = (320 * Y) + X
mov ax, 320 ; Prepare for the multiplication
mul [Y] ; Assuming that Y is defined in the data
segment HERE IS LINE 19 - PLEASE HELP
; earlier in the program
mov di, ax ; Put in into the pointer to the offset of ES
add di, [X] ; Assuming that X is defined in the data
segment
; earlier in the program
mov al, [Color] ; Assuming that Color is defined in the data
; segment earlier in the program
stosb ; Write it to the screen!
mov ah, 0
int 16h ; wait for a key
mov ax, 3
int 10h
ret
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