1 /*
2 * Invinco sound routines
3 */
4
5 #include "driver.h"
6
7
8 /* output port 0x02 definitions - sound effect drive outputs */
9 #define OUT_PORT_2_SAUCER 0x04
10 #define OUT_PORT_2_MOVE1 0x08
11 #define OUT_PORT_2_MOVE2 0x10
12 #define OUT_PORT_2_FIRE 0x20
13 #define OUT_PORT_2_INVHIT 0x40
14 #define OUT_PORT_2_SHIPHIT 0x80
15
16
17 #define PLAY(id,loop) sample_start( id, id, loop )
18 #define STOP(id) sample_stop( id )
19
20
21 /* sample file names */
22 const char *invinco_sample_names[] =
23 {
24 "*invinco",
25 "saucer.wav",
26 "move1.wav",
27 "move2.wav",
28 "fire.wav",
29 "invhit.wav",
30 "shiphit.wav",
31 "move3.wav", /* currently not used */
32 "move4.wav", /* currently not used */
33 0
34 };
35
36 /* sample sound IDs - must match sample file name table above */
37 enum
38 {
39 SND_SAUCER = 0,
40 SND_MOVE1,
41 SND_MOVE2,
42 SND_FIRE,
43 SND_INVHIT,
44 SND_SHIPHIT,
45 SND_MOVE3,
46 SND_MOVE4
47 };
48
49
WRITE_HANDLER(invinco_sh_port2_w)50 WRITE_HANDLER( invinco_sh_port2_w )
51 {
52 static int port2State = 0;
53 int bitsChanged;
54 int bitsGoneHigh;
55 int bitsGoneLow;
56
57
58 bitsChanged = port2State ^ data;
59 bitsGoneHigh = bitsChanged & data;
60 bitsGoneLow = bitsChanged & ~data;
61
62 port2State = data;
63
64 if ( bitsGoneLow & OUT_PORT_2_SAUCER )
65 {
66 PLAY( SND_SAUCER, 0 );
67 }
68
69 if ( bitsGoneLow & OUT_PORT_2_MOVE1 )
70 {
71 PLAY( SND_MOVE1, 0 );
72 }
73
74 if ( bitsGoneLow & OUT_PORT_2_MOVE2 )
75 {
76 PLAY( SND_MOVE2, 0 );
77 }
78
79 if ( bitsGoneLow & OUT_PORT_2_FIRE )
80 {
81 PLAY( SND_FIRE, 0 );
82 }
83
84 if ( bitsGoneLow & OUT_PORT_2_INVHIT )
85 {
86 PLAY( SND_INVHIT, 0 );
87 }
88
89 if ( bitsGoneLow & OUT_PORT_2_SHIPHIT )
90 {
91 PLAY( SND_SHIPHIT, 0 );
92 }
93
94 #if 0
95 logerror("Went LO: %02X %04X\n", bitsGoneLow, cpu_get_pc());
96 #endif
97 }
98