use16
org 100h

mov si, sound+44

start:
lodsb
mov byte [freq], al
mov al, 0
mov ax, [freq]
call speaker_on
call timer
call speaker_off
mov ax, 0
jmp start




speaker_on:
mov cx, ax                      
mov al, 182
out 43h, al
mov ax, cx                      
out 42h, al
mov al, ah
out 42h, al

in al, 61h                      
or al, 03h
out 61h, al
ret

speaker_off:    
in al, 61h
and al, 0FCh
out 61h, al
ret

timer:
mov cx, 125
mov dx, 0
mov ah, 86h
int 15h
ret

freq db 0

sound:
file 'test.wav'
    

mov ax, [freq] 
mov al, 0 
mov ah, 0 
    

mov byte [freq], al ; Why ???
mov al, 0
mov ax, [freq] ; ERROR - operand size mismatch F**K F**K F**K