diff options
Diffstat (limited to 'trunk/src/emu/sound/k007232.c')
-rw-r--r-- | trunk/src/emu/sound/k007232.c | 476 |
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); |