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Diffstat (limited to 'trunk/src/emu/sound/k007232.c')
-rw-r--r--trunk/src/emu/sound/k007232.c476
1 files changed, 476 insertions, 0 deletions
diff --git a/trunk/src/emu/sound/k007232.c b/trunk/src/emu/sound/k007232.c
new file mode 100644
index 00000000000..bd0663a59f7
--- /dev/null
+++ b/trunk/src/emu/sound/k007232.c
@@ -0,0 +1,476 @@
+/*********************************************************/
+/* Konami PCM controller */
+/*********************************************************/
+
+/*
+ Changelog, Hiromitsu Shioya 02/05/2002
+ fix start address decode timing. (sample loop bug.)
+
+ Changelog, Mish, August 1999:
+ Removed interface support for different memory regions per channel.
+ Removed interface support for differing channel volume.
+
+ Added bankswitching.
+ Added support for multiple chips.
+
+ (Nb: Should different memory regions per channel be needed
+ the bankswitching function can set this up).
+
+NS990821
+support for the k007232_VOL() macro.
+added external port callback, and functions to set the volume of the channels
+
+*/
+
+
+#include "emu.h"
+#include "k007232.h"
+
+
+#define KDAC_A_PCM_MAX (2) /* Channels per chip */
+
+
+typedef struct kdacApcm
+{
+ UINT8 vol[KDAC_A_PCM_MAX][2]; /* volume for the left and right channel */
+ UINT32 addr[KDAC_A_PCM_MAX];
+ UINT32 start[KDAC_A_PCM_MAX];
+ UINT32 step[KDAC_A_PCM_MAX];
+ UINT32 bank[KDAC_A_PCM_MAX];
+ int play[KDAC_A_PCM_MAX];
+
+ UINT8 wreg[0x10]; /* write data */
+ UINT8 * pcmbuf[2]; /* Channel A & B pointers */
+
+ UINT32 clock; /* chip clock */
+ UINT32 pcmlimit;
+
+ sound_stream * stream;
+ const k007232_interface *intf;
+ UINT32 fncode[0x200];
+} KDAC_A_PCM;
+
+
+#define BASE_SHIFT (12)
+
+
+INLINE KDAC_A_PCM *get_safe_token(device_t *device)
+{
+ assert(device != NULL);
+ assert(device->type() == K007232);
+ return (KDAC_A_PCM *)downcast<legacy_device_base *>(device)->token();
+}
+
+
+#if 0
+static const int kdac_note[] = {
+ 261.63/8, 277.18/8,
+ 293.67/8, 311.13/8,
+ 329.63/8,
+ 349.23/8, 369.99/8,
+ 392.00/8, 415.31/8,
+ 440.00/8, 466.16/8,
+ 493.88/8,
+
+ 523.25/8,
+};
+
+static const float kdaca_fn[][2] = {
+ /* B */
+ { 0x03f, 493.88/8 }, /* ?? */
+ { 0x11f, 493.88/4 }, /* ?? */
+ { 0x18f, 493.88/2 }, /* ?? */
+ { 0x1c7, 493.88 },
+ { 0x1e3, 493.88*2 },
+ { 0x1f1, 493.88*4 }, /* ?? */
+ { 0x1f8, 493.88*8 }, /* ?? */
+ /* A+ */
+ { 0x020, 466.16/8 }, /* ?? */
+ { 0x110, 466.16/4 }, /* ?? */
+ { 0x188, 466.16/2 },
+ { 0x1c4, 466.16 },
+ { 0x1e2, 466.16*2 },
+ { 0x1f1, 466.16*4 }, /* ?? */
+ { 0x1f8, 466.16*8 }, /* ?? */
+ /* A */
+ { 0x000, 440.00/8 }, /* ?? */
+ { 0x100, 440.00/4 }, /* ?? */
+ { 0x180, 440.00/2 },
+ { 0x1c0, 440.00 },
+ { 0x1e0, 440.00*2 },
+ { 0x1f0, 440.00*4 }, /* ?? */
+ { 0x1f8, 440.00*8 }, /* ?? */
+ { 0x1fc, 440.00*16}, /* ?? */
+ { 0x1fe, 440.00*32}, /* ?? */
+ { 0x1ff, 440.00*64}, /* ?? */
+ /* G+ */
+ { 0x0f2, 415.31/4 },
+ { 0x179, 415.31/2 },
+ { 0x1bc, 415.31 },
+ { 0x1de, 415.31*2 },
+ { 0x1ef, 415.31*4 }, /* ?? */
+ { 0x1f7, 415.31*8 }, /* ?? */
+ /* G */
+ { 0x0e2, 392.00/4 },
+ { 0x171, 392.00/2 },
+ { 0x1b8, 392.00 },
+ { 0x1dc, 392.00*2 },
+ { 0x1ee, 392.00*4 }, /* ?? */
+ { 0x1f7, 392.00*8 }, /* ?? */
+ /* F+ */
+ { 0x0d0, 369.99/4 }, /* ?? */
+ { 0x168, 369.99/2 },
+ { 0x1b4, 369.99 },
+ { 0x1da, 369.99*2 },
+ { 0x1ed, 369.99*4 }, /* ?? */
+ { 0x1f6, 369.99*8 }, /* ?? */
+ /* F */
+ { 0x0bf, 349.23/4 }, /* ?? */
+ { 0x15f, 349.23/2 },
+ { 0x1af, 349.23 },
+ { 0x1d7, 349.23*2 },
+ { 0x1eb, 349.23*4 }, /* ?? */
+ { 0x1f5, 349.23*8 }, /* ?? */
+ /* E */
+ { 0x0ac, 329.63/4 },
+ { 0x155, 329.63/2 }, /* ?? */
+ { 0x1ab, 329.63 },
+ { 0x1d5, 329.63*2 },
+ { 0x1ea, 329.63*4 }, /* ?? */
+ { 0x1f4, 329.63*8 }, /* ?? */
+ /* D+ */
+ { 0x098, 311.13/4 }, /* ?? */
+ { 0x14c, 311.13/2 },
+ { 0x1a6, 311.13 },
+ { 0x1d3, 311.13*2 },
+ { 0x1e9, 311.13*4 }, /* ?? */
+ { 0x1f4, 311.13*8 }, /* ?? */
+ /* D */
+ { 0x080, 293.67/4 }, /* ?? */
+ { 0x140, 293.67/2 }, /* ?? */
+ { 0x1a0, 293.67 },
+ { 0x1d0, 293.67*2 },
+ { 0x1e8, 293.67*4 }, /* ?? */
+ { 0x1f4, 293.67*8 }, /* ?? */
+ { 0x1fa, 293.67*16}, /* ?? */
+ { 0x1fd, 293.67*32}, /* ?? */
+ /* C+ */
+ { 0x06d, 277.18/4 }, /* ?? */
+ { 0x135, 277.18/2 }, /* ?? */
+ { 0x19b, 277.18 },
+ { 0x1cd, 277.18*2 },
+ { 0x1e6, 277.18*4 }, /* ?? */
+ { 0x1f2, 277.18*8 }, /* ?? */
+ /* C */
+ { 0x054, 261.63/4 },
+ { 0x12a, 261.63/2 },
+ { 0x195, 261.63 },
+ { 0x1ca, 261.63*2 },
+ { 0x1e5, 261.63*4 },
+ { 0x1f2, 261.63*8 }, /* ?? */
+
+ { -1, -1 },
+};
+#endif
+
+/*************************************************************/
+static void KDAC_A_make_fncode( KDAC_A_PCM *info ){
+ int i;
+#if 0
+ int i, j, k;
+ float fn;
+ for( i = 0; i < 0x200; i++ ) fncode[i] = 0;
+
+ i = 0;
+ while( (int)kdaca_fn[i][0] != -1 ){
+ fncode[(int)kdaca_fn[i][0]] = kdaca_fn[i][1];
+ i++;
+ }
+
+ i = j = 0;
+ while( i < 0x200 ){
+ if( fncode[i] != 0 ){
+ if( i != j ){
+ fn = (fncode[i] - fncode[j]) / (i - j);
+ for( k = 1; k < (i-j); k++ )
+ fncode[k+j] = fncode[j] + fn*k;
+ j = i;
+ }
+ }
+ i++;
+ }
+#if 0
+ for( i = 0; i < 0x200; i++ )
+ logerror("fncode[%04x] = %.2f\n", i, fncode[i] );
+#endif
+
+#else
+ for( i = 0; i < 0x200; i++ ){
+ //fncode[i] = (0x200 * 55) / (0x200 - i);
+ info->fncode[i] = (32 << BASE_SHIFT) / (0x200 - i);
+// info->fncode[i] = ((0x200 * 55.2 / 880) / (0x200 - i));
+ // = 512 * 55.2 / 220 / (512 - i) = 128 / (512 - i)
+ // logerror("2 : fncode[%04x] = %.2f\n", i, fncode[i] );
+ }
+
+#endif
+}
+
+
+/************************************************/
+/* Konami PCM update */
+/************************************************/
+
+static STREAM_UPDATE( KDAC_A_update )
+{
+ KDAC_A_PCM *info = (KDAC_A_PCM *)param;
+ int i;
+
+ memset(outputs[0],0,samples * sizeof(*outputs[0]));
+ memset(outputs[1],0,samples * sizeof(*outputs[1]));
+
+ for( i = 0; i < KDAC_A_PCM_MAX; i++ )
+ {
+ if (info->play[i])
+ {
+ int volA,volB,j,out;
+ unsigned int addr, old_addr;
+ //int cen;
+
+ /**** PCM setup ****/
+ addr = info->start[i] + ((info->addr[i]>>BASE_SHIFT)&0x000fffff);
+ volA = info->vol[i][0] * 2;
+ volB = info->vol[i][1] * 2;
+#if 0
+ cen = (volA + volB) / 2;
+ volA = (volA + cen) < 0x1fe ? (volA + cen) : 0x1fe;
+ volB = (volB + cen) < 0x1fe ? (volB + cen) : 0x1fe;
+#endif
+
+ for( j = 0; j < samples; j++ )
+ {
+ old_addr = addr;
+ addr = info->start[i] + ((info->addr[i]>>BASE_SHIFT)&0x000fffff);
+ while (old_addr <= addr)
+ {
+ if( (info->pcmbuf[i][old_addr] & 0x80) || old_addr >= info->pcmlimit )
+ {
+ /* end of sample */
+
+ if( info->wreg[0x0d]&(1<<i) )
+ {
+ /* loop to the beginning */
+ info->start[i] =
+ ((((unsigned int)info->wreg[i*0x06 + 0x04]<<16)&0x00010000) |
+ (((unsigned int)info->wreg[i*0x06 + 0x03]<< 8)&0x0000ff00) |
+ (((unsigned int)info->wreg[i*0x06 + 0x02] )&0x000000ff) |
+ info->bank[i]);
+ addr = info->start[i];
+ info->addr[i] = 0;
+ old_addr = addr; /* skip loop */
+ }
+ else
+ {
+ /* stop sample */
+ info->play[i] = 0;
+ }
+ break;
+ }
+
+ old_addr++;
+ }
+
+ if (info->play[i] == 0)
+ break;
+
+ info->addr[i] += info->step[i];
+
+ out = (info->pcmbuf[i][addr] & 0x7f) - 0x40;
+
+ outputs[0][j] += out * volA;
+ outputs[1][j] += out * volB;
+ }
+ }
+ }
+}
+
+
+/************************************************/
+/* Konami PCM start */
+/************************************************/
+static DEVICE_START( k007232 )
+{
+ static const k007232_interface defintrf = { 0 };
+ int i;
+ KDAC_A_PCM *info = get_safe_token(device);
+
+ info->intf = (device->static_config() != NULL) ? (const k007232_interface *)device->static_config() : &defintrf;
+
+ /* Set up the chips */
+
+ info->pcmbuf[0] = *device->region();
+ info->pcmbuf[1] = *device->region();
+ info->pcmlimit = device->region()->bytes();
+
+ info->clock = device->clock();
+
+ for( i = 0; i < KDAC_A_PCM_MAX; i++ )
+ {
+ info->start[i] = 0;
+ info->step[i] = 0;
+ info->play[i] = 0;
+ info->bank[i] = 0;
+ }
+ info->vol[0][0] = 255; /* channel A output to output A */
+ info->vol[0][1] = 0;
+ info->vol[1][0] = 0;
+ info->vol[1][1] = 255; /* channel B output to output B */
+
+ for( i = 0; i < 0x10; i++ ) info->wreg[i] = 0;
+
+ info->stream = device->machine().sound().stream_alloc(*device,0,2,device->clock()/128,info,KDAC_A_update);
+
+ KDAC_A_make_fncode(info);
+}
+
+/************************************************/
+/* Konami PCM write register */
+/************************************************/
+WRITE8_DEVICE_HANDLER( k007232_w )
+{
+ KDAC_A_PCM *info = get_safe_token(device);
+ int r = offset;
+ int v = data;
+
+ info->stream->update();
+
+ info->wreg[r] = v; /* stock write data */
+
+ if (r == 0x0c){
+ /* external port, usually volume control */
+ if (info->intf->portwritehandler) (*info->intf->portwritehandler)(device,v);
+ return;
+ }
+ else if( r == 0x0d ){
+ /* loopflag. */
+ return;
+ }
+ else{
+ int reg_port;
+
+ reg_port = 0;
+ if (r >= 0x06){
+ reg_port = 1;
+ r -= 0x06;
+ }
+
+ switch (r){
+ case 0x00:
+ case 0x01:
+ {
+ /**** address step ****/
+ int idx = (((((unsigned int)info->wreg[reg_port*0x06 + 0x01])<<8)&0x0100) | (((unsigned int)info->wreg[reg_port*0x06 + 0x00])&0x00ff));
+#if 0
+ if( !reg_port && r == 1 )
+ logerror("%04x\n" ,idx );
+#endif
+
+ info->step[reg_port] = info->fncode[idx];
+ break;
+ }
+ case 0x02:
+ case 0x03:
+ case 0x04:
+ break;
+ case 0x05:
+ /**** start address ****/
+ info->start[reg_port] =
+ ((((unsigned int)info->wreg[reg_port*0x06 + 0x04]<<16)&0x00010000) |
+ (((unsigned int)info->wreg[reg_port*0x06 + 0x03]<< 8)&0x0000ff00) |
+ (((unsigned int)info->wreg[reg_port*0x06 + 0x02] )&0x000000ff) |
+ info->bank[reg_port]);
+ if (info->start[reg_port] < info->pcmlimit ){
+ info->play[reg_port] = 1;
+ info->addr[reg_port] = 0;
+ }
+ break;
+ }
+ }
+}
+
+/************************************************/
+/* Konami PCM read register */
+/************************************************/
+READ8_DEVICE_HANDLER( k007232_r )
+{
+ KDAC_A_PCM *info = get_safe_token(device);
+ int r = offset;
+ int ch = 0;
+
+ if( r == 0x0005 || r == 0x000b ){
+ ch = r/0x0006;
+ r = ch * 0x0006;
+
+ info->start[ch] =
+ ((((unsigned int)info->wreg[r + 0x04]<<16)&0x00010000) |
+ (((unsigned int)info->wreg[r + 0x03]<< 8)&0x0000ff00) |
+ (((unsigned int)info->wreg[r + 0x02] )&0x000000ff) |
+ info->bank[ch]);
+
+ if (info->start[ch] < info->pcmlimit ){
+ info->play[ch] = 1;
+ info->addr[ch] = 0;
+ }
+ }
+ return 0;
+}
+
+/*****************************************************************************/
+
+void k007232_set_volume(device_t *device,int channel,int volumeA,int volumeB)
+{
+ KDAC_A_PCM *info = get_safe_token(device);
+ info->vol[channel][0] = volumeA;
+ info->vol[channel][1] = volumeB;
+}
+
+void k007232_set_bank( device_t *device, int chABank, int chBBank )
+{
+ KDAC_A_PCM *info = get_safe_token(device);
+ info->bank[0] = chABank<<17;
+ info->bank[1] = chBBank<<17;
+}
+
+/*****************************************************************************/
+
+
+
+
+
+/**************************************************************************
+ * Generic get_info
+ **************************************************************************/
+
+DEVICE_GET_INFO( k007232 )
+{
+ switch (state)
+ {
+ /* --- the following bits of info are returned as 64-bit signed integers --- */
+ case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(KDAC_A_PCM); break;
+
+ /* --- the following bits of info are returned as pointers to data or functions --- */
+ case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( k007232 ); break;
+ case DEVINFO_FCT_STOP: /* nothing */ break;
+ case DEVINFO_FCT_RESET: /* nothing */ break;
+
+ /* --- the following bits of info are returned as NULL-terminated strings --- */
+ case DEVINFO_STR_NAME: strcpy(info->s, "K007232"); break;
+ case DEVINFO_STR_FAMILY: strcpy(info->s, "Konami custom"); break;
+ case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
+ case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
+ case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
+ }
+}
+
+
+DEFINE_LEGACY_SOUND_DEVICE(K007232, k007232);