; this example shows how to access virtual ports (0 to 65535). 
; these ports are emulated in this file: c:\emu8086.io 

; this technology allows to make external add-on devices 
; for emu8086, such as led displays, robots, thermometers, stepper-motors, etc... etc... 

; anyone can create an animated virtual device. 

; c:\emu8086\devices\led_display.exe 

#start=led_display.exe#


#make_bin#

name "led"

mov ax, 1234
out 199, ax

mov ax, -5678
out 199, ax

; Eternal loop to write 
; values to port: 
mov ax, 0
x1:
  out 199, ax
  inc ax
jmp x1

hlt