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Re: play.c
From: |
Vincent Pelletier |
Subject: |
Re: play.c |
Date: |
Sat, 5 Nov 2005 23:43:16 +0100 |
On Sat, 5 Nov 2005 23:23:25 +0100
Samuel Thibault <address@hidden> wrote:
> Hollis Blanchard, le Sat 05 Nov 2005 16:17:33 -0600, a écrit :
BTW, thank for your comments, I'll send another version tomorrow.
> > Can you describe how the PIT is related to the speaker?
> That's the way one can make the speaker beep without having to keep
> cpu busy with typically-440-Hz outs. One just asks the PIT to do it
> for us in the background.
To beep, a square generator is set to the right frequency, and then a
bit allows the pulses to go to the actual buzzer.
> > I'm wondering if this code could mostly work on PPC platforms that
> > have PC-like peripherals.
> It depends on whether the PIT is linked to the speaker like on PC.
I think there is really little chance it works (ie. without
writing a sound-card driver).
Vincent Pelletier
PS: trying sylpheed claws gtk2
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Re: play.c, Hollis Blanchard, 2005/11/05
- Re: play.c, Samuel Thibault, 2005/11/05
- Re: play.c,
Vincent Pelletier <=
Re: play.c, Marco Gerards, 2005/11/06