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Power Programming
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SOUNDOFF.ASM
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Assembly Source File
|
1986-02-15
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279b
|
15 lines
assume cs:_text
_text segment public byte 'code'
public _soundoff
_soundoff proc near
in al,61h ; get contents of system port b
and al,11111100b ; turn speaker and timer off
out 61h,al ; send out new values to port b
ret
_soundoff endp
_text ends
end