diff options
Diffstat (limited to 'src/mame/audio/invinco.c')
-rw-r--r-- | src/mame/audio/invinco.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/mame/audio/invinco.c b/src/mame/audio/invinco.c new file mode 100644 index 00000000000..459615f9434 --- /dev/null +++ b/src/mame/audio/invinco.c @@ -0,0 +1,113 @@ +/* + * Invinco sound routines + */ + +#include "driver.h" +#include "sound/samples.h" +#include "includes/vicdual.h" + +/* output port 0x02 definitions - sound effect drive outputs */ +#define OUT_PORT_2_SAUCER 0x04 +#define OUT_PORT_2_MOVE1 0x08 +#define OUT_PORT_2_MOVE2 0x10 +#define OUT_PORT_2_FIRE 0x20 +#define OUT_PORT_2_INVHIT 0x40 +#define OUT_PORT_2_SHIPHIT 0x80 + + +#define PLAY(id,loop) sample_start( id, id, loop ) +#define STOP(id) sample_stop( id ) + + +/* sample file names */ +static const char *invinco_sample_names[] = +{ + "*invinco", + "saucer.wav", + "move1.wav", + "move2.wav", + "fire.wav", + "invhit.wav", + "shiphit.wav", + "move3.wav", /* currently not used */ + "move4.wav", /* currently not used */ + 0 +}; + + +static struct Samplesinterface invinco_samples_interface = +{ + 8, + invinco_sample_names +}; + + +MACHINE_DRIVER_START( invinco_audio ) + MDRV_SOUND_ADD(SAMPLES, 0) + MDRV_SOUND_CONFIG(invinco_samples_interface) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5) +MACHINE_DRIVER_END + + +/* sample IDs - must match sample file name table above */ +enum +{ + SND_SAUCER = 0, + SND_MOVE1, + SND_MOVE2, + SND_FIRE, + SND_INVHIT, + SND_SHIPHIT, + SND_MOVE3, + SND_MOVE4 +}; + + +WRITE8_HANDLER( invinco_audio_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_SAUCER ) + { + PLAY( SND_SAUCER, 0 ); + } + + if ( bitsGoneLow & OUT_PORT_2_MOVE1 ) + { + PLAY( SND_MOVE1, 0 ); + } + + if ( bitsGoneLow & OUT_PORT_2_MOVE2 ) + { + PLAY( SND_MOVE2, 0 ); + } + + if ( bitsGoneLow & OUT_PORT_2_FIRE ) + { + PLAY( SND_FIRE, 0 ); + } + + if ( bitsGoneLow & OUT_PORT_2_INVHIT ) + { + PLAY( SND_INVHIT, 0 ); + } + + if ( bitsGoneLow & OUT_PORT_2_SHIPHIT ) + { + PLAY( SND_SHIPHIT, 0 ); + } + +#if 0 + logerror("Went LO: %02X %04X\n", bitsGoneLow, activecpu_get_pc()); +#endif +} |