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[ctsim.git] / libctsupport / audio.cpp

diff --git a/libctsupport/audio.cpp b/libctsupport/audio.cpp
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+++ b/libctsupport/audio.cpp
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+/*****************************************************************************
+**  This is part of the CTSim program
+**  Copyright (C) 1983-2000 Kevin Rosenberg
+**
+**  $Id: audio.cpp,v 1.1 2000/06/19 02:58:08 kevin Exp $
+**
+**  This program is free software; you can redistribute it and/or modify
+**  it under the terms of the GNU General Public License (version 2) as
+**  published by the Free Software Foundation.
+**
+**  This program is distributed in the hope that it will be useful,
+**  but WITHOUT ANY WARRANTY; without even the implied warranty of
+**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**  GNU General Public License for more details.
+**
+**  You should have received a copy of the GNU General Public License
+**  along with this program; if not, write to the Free Software
+**  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+******************************************************************************/
+
+/* NAME
+ *    beep                             sound a beep to user
+ *
+ * SYNOPSIS
+ *    beep()
+ */
+
+#include "cio.h"
+
+void cio_beep (void)
+{
+       cio_tone (2000.0, 0.3);
+}
+
+/* NAME
+ *    tone             play a frequency sound for some duration
+ *
+ * SYNOPSIS
+ *    tone (freq, length)
+ *    double freq      frequency to play in Hertz
+ *    double length    duration to play note in seconds
+ */
+
+#include <stdio.h>
+#include "cio.h"
+
+void 
+cio_tone (double freq, double length)
+{
+#if 1
+  fprintf(stdout, "\007");
+#else
+  cio_spkr_freq (freq);                /* Set frequency of tone */
+  cio_spkr_on ();                      /* Turn on speaker */
+  pause (length);                      /* Pause for length seconds */
+  cio_spkr_off ();                     /* Turn off speaker */
+#endif
+}