summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/audio/pulsar.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/audio/pulsar.c')
-rw-r--r--src/mame/audio/pulsar.c189
1 files changed, 189 insertions, 0 deletions
diff --git a/src/mame/audio/pulsar.c b/src/mame/audio/pulsar.c
new file mode 100644
index 00000000000..6d6551556d7
--- /dev/null
+++ b/src/mame/audio/pulsar.c
@@ -0,0 +1,189 @@
+/*
+ * Pulsar sound routines
+ *
+ * TODO: change heart rate based on bit 7 of Port 1
+ *
+ */
+
+#include "driver.h"
+#include "sound/samples.h"
+#include "includes/vicdual.h"
+
+
+/* output port 0x01 definitions - sound effect drive outputs */
+#define OUT_PORT_1_CLANG 0x01
+#define OUT_PORT_1_KEY 0x02
+#define OUT_PORT_1_ALIENHIT 0x04
+#define OUT_PORT_1_PHIT 0x08
+#define OUT_PORT_1_ASHOOT 0x10
+#define OUT_PORT_1_PSHOOT 0x20
+#define OUT_PORT_1_BONUS 0x40
+#define OUT_PORT_1_HBEAT_RATE 0x80 /* currently not used */
+
+/* output port 0x02 definitions - sound effect drive outputs */
+#define OUT_PORT_2_SIZZLE 0x01
+#define OUT_PORT_2_GATE 0x02
+#define OUT_PORT_2_BIRTH 0x04
+#define OUT_PORT_2_HBEAT 0x08
+#define OUT_PORT_2_MOVMAZE 0x10
+
+
+#define PLAY(id,loop) sample_start( id, id, loop )
+#define STOP(id) sample_stop( id )
+
+
+/* sample file names */
+static const char *pulsar_sample_names[] =
+{
+ "*pulsar",
+ "clang.wav",
+ "key.wav",
+ "alienhit.wav",
+ "phit.wav",
+ "ashoot.wav",
+ "pshoot.wav",
+ "bonus.wav",
+ "sizzle.wav",
+ "gate.wav",
+ "birth.wav",
+ "hbeat.wav",
+ "movmaze.wav",
+ 0
+};
+
+
+static struct Samplesinterface pulsar_samples_interface =
+{
+ 12,
+ pulsar_sample_names
+};
+
+
+MACHINE_DRIVER_START( pulsar_audio )
+ MDRV_SOUND_ADD(SAMPLES, 0)
+ MDRV_SOUND_CONFIG(pulsar_samples_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
+MACHINE_DRIVER_END
+
+
+/* sample IDs - must match sample file name table above */
+enum
+{
+ SND_CLANG = 0,
+ SND_KEY,
+ SND_ALIENHIT,
+ SND_PHIT,
+ SND_ASHOOT,
+ SND_PSHOOT,
+ SND_BONUS,
+ SND_SIZZLE,
+ SND_GATE,
+ SND_BIRTH,
+ SND_HBEAT,
+ SND_MOVMAZE
+};
+
+
+static int port1State = 0;
+
+WRITE8_HANDLER( pulsar_audio_1_w )
+{
+ int bitsChanged;
+ int bitsGoneHigh;
+ int bitsGoneLow;
+
+
+ bitsChanged = port1State ^ data;
+ bitsGoneHigh = bitsChanged & data;
+ bitsGoneLow = bitsChanged & ~data;
+
+ port1State = data;
+
+ if ( bitsGoneLow & OUT_PORT_1_CLANG )
+ {
+ PLAY( SND_CLANG, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_1_KEY )
+ {
+ PLAY( SND_KEY, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_1_ALIENHIT )
+ {
+ PLAY( SND_ALIENHIT, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_1_PHIT )
+ {
+ PLAY( SND_PHIT, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_1_ASHOOT )
+ {
+ PLAY( SND_ASHOOT, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_1_PSHOOT )
+ {
+ PLAY( SND_PSHOOT, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_1_BONUS )
+ {
+ PLAY( SND_BONUS, 0 );
+ }
+}
+
+
+WRITE8_HANDLER( pulsar_audio_2_w )
+{
+ static int port2State = 0;
+ int bitsChanged;
+ int bitsGoneHigh;
+ int bitsGoneLow;
+
+
+ bitsChanged = port2State ^ data;
+ bitsGoneHigh = bitsChanged & data;
+ bitsGoneLow = bitsChanged & ~data;
+
+ port2State = data;
+
+ if ( bitsGoneLow & OUT_PORT_2_SIZZLE )
+ {
+ PLAY( SND_SIZZLE, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_2_GATE )
+ {
+ sample_start( SND_CLANG, SND_GATE, 0 );
+ }
+ if ( bitsGoneHigh & OUT_PORT_2_GATE )
+ {
+ STOP( SND_CLANG );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_2_BIRTH )
+ {
+ PLAY( SND_BIRTH, 0 );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_2_HBEAT )
+ {
+ PLAY( SND_HBEAT, 1 );
+ }
+ if ( bitsGoneHigh & OUT_PORT_2_HBEAT )
+ {
+ STOP( SND_HBEAT );
+ }
+
+ if ( bitsGoneLow & OUT_PORT_2_MOVMAZE )
+ {
+ PLAY( SND_MOVMAZE, 1 );
+ }
+ if ( bitsGoneHigh & OUT_PORT_2_MOVMAZE )
+ {
+ STOP( SND_MOVMAZE );
+ }
+}