diff options
Diffstat (limited to 'src/devices/sound/aica.cpp')
-rw-r--r-- | src/devices/sound/aica.cpp | 88 |
1 files changed, 53 insertions, 35 deletions
diff --git a/src/devices/sound/aica.cpp b/src/devices/sound/aica.cpp index ad7d5467c3d..3c66130fb77 100644 --- a/src/devices/sound/aica.cpp +++ b/src/devices/sound/aica.cpp @@ -72,10 +72,10 @@ #define IMXL(slot) ((slot->udata.data[0x20/2]>>0x4)&0x000F) #define DISDL(slot) ((slot->udata.data[0x24/2]>>0x8)&0x000F) -#define DIPAN(slot) ((slot->udata.data[0x24/2]>>0x0)&0x001F) +#define DIPAN(slot) (MONO() ? 0 : ((slot->udata.data[0x24/2]>>0x0)&0x001F)) #define EFSDL(slot) ((m_EFSPAN[slot*4]>>8)&0x000f) -#define EFPAN(slot) ((m_EFSPAN[slot*4]>>0)&0x001f) +#define EFPAN(slot) (MONO() ? 0 : ((m_EFSPAN[slot*4]>>0)&0x001f)) //Unimplemented #define Q(slot) ((slot->udata.data[0x28/2]>>0x0)&0x001F) // (0.75 × register value - 3) @@ -99,6 +99,7 @@ static constexpr double DRTimes[64]={100000/*infinity*/,100000/*infinity*/,11820 920.0,790.0,690.0,550.0,460.0,390.0,340.0,270.0,230.0,200.0,170.0,140.0,110.0,98.0,85.0,68.0,57.0,49.0,43.0,34.0, 28.0,25.0,22.0,18.0,14.0,12.0,11.0,8.5,7.1,6.1,5.4,4.3,3.6,3.1}; +#define MONO(aica) ((m_udata.data[0]>>0x0)&0x8000) #define MEM8MB(aica) ((m_udata.data[0]>>0x0)&0x0200) #define DAC18B(aica) ((m_udata.data[0]>>0x0)&0x0100) #define MVOL(aica) ((m_udata.data[0]>>0x0)&0x000F) @@ -505,24 +506,7 @@ void aica_device::Init() m_ARTABLE[0]=m_DRTABLE[0]=0; //Infinite time m_ARTABLE[1]=m_DRTABLE[1]=0; //Infinite time - for(i=2;i<64;++i) - { - double t,step,scale; - t=ARTimes[i]; //In ms - if(t!=0.0) - { - step=(1023*1000.0)/(44100.0*t); - scale=(double) (1<<EG_SHIFT); - m_ARTABLE[i]=(int) (step*scale); - } - else - m_ARTABLE[i]=1024<<EG_SHIFT; - - t=DRTimes[i]; //In ms - step=(1023*1000.0)/(44100.0*t); - scale=(double) (1<<EG_SHIFT); - m_DRTABLE[i]=(int) (step*scale); - } + ClockChange(); // make sure all the slots are off for(i=0;i<64;++i) @@ -535,8 +519,6 @@ void aica_device::Init() } AICALFO_Init(); - m_buffertmpl=make_unique_clear<int32_t[]>(44100); - m_buffertmpr=make_unique_clear<int32_t[]>(44100); // no "pend" m_udata.data[0xa0/2] = 0; @@ -546,6 +528,32 @@ void aica_device::Init() m_TimCnt[2] = 0xffff; } +void aica_device::ClockChange() +{ + m_rate = ((double)clock()) / 512.0; + for(int i=2;i<64;++i) + { + double t,step,scale; + t=ARTimes[i]; //In ms + if(t!=0.0) + { + step=(1023*1000.0)/(m_rate*t); + scale=(double) (1<<EG_SHIFT); + m_ARTABLE[i]=(int) (step*scale); + } + else + m_ARTABLE[i]=1024<<EG_SHIFT; + + t=DRTimes[i]; //In ms + step=(1023*1000.0)/(m_rate*t); + scale=(double) (1<<EG_SHIFT); + m_DRTABLE[i]=(int) (step*scale); + } + + m_buffertmpl.resize((int)m_rate, 0); + m_buffertmpr.resize((int)m_rate, 0); +} + void aica_device::UpdateSlotReg(int s,int r) { AICA_SLOT *slot=m_Slots+s; @@ -675,10 +683,10 @@ void aica_device::UpdateReg(address_space &space, int reg) if ((m_udata.data[0x90/2]&0xff) != 255) { - time = (44100 / m_TimPris[0]) / (255-(m_udata.data[0x90/2]&0xff)); + time = (clock() / m_TimPris[0]) / (255-(m_udata.data[0x90/2]&0xff)); if (time) { - m_timerA->adjust(attotime::from_hz(time)); + m_timerA->adjust(attotime::from_ticks(512, time)); } } } @@ -694,10 +702,10 @@ void aica_device::UpdateReg(address_space &space, int reg) if ((m_udata.data[0x94/2]&0xff) != 255) { - time = (44100 / m_TimPris[1]) / (255-(m_udata.data[0x94/2]&0xff)); + time = (clock() / m_TimPris[1]) / (255-(m_udata.data[0x94/2]&0xff)); if (time) { - m_timerB->adjust(attotime::from_hz(time)); + m_timerB->adjust(attotime::from_ticks(512, time)); } } } @@ -713,10 +721,10 @@ void aica_device::UpdateReg(address_space &space, int reg) if ((m_udata.data[0x98/2]&0xff) != 255) { - time = (44100 / m_TimPris[2]) / (255-(m_udata.data[0x98/2]&0xff)); + time = (clock() / m_TimPris[2]) / (255-(m_udata.data[0x98/2]&0xff)); if (time) { - m_timerC->adjust(attotime::from_hz(time)); + m_timerC->adjust(attotime::from_ticks(512, time)); } } } @@ -1305,8 +1313,8 @@ void aica_device::DoMasterSamples(int nsamples) } } - *bufl++ = ICLIP16(smpl>>3); - *bufr++ = ICLIP16(smpr>>3); + *bufl++ = (ICLIP16(smpl>>3)*m_LPANTABLE[MVOL()<<0xd])>>SHIFT; + *bufr++ = (ICLIP16(smpr>>3)*m_LPANTABLE[MVOL()<<0xd])>>SHIFT; } } @@ -1425,7 +1433,7 @@ void aica_device::device_start() m_irq_cb.resolve_safe(); m_main_irq_cb.resolve_safe(); - m_stream = machine().sound().stream_alloc(*this, 0, 2, 44100); + m_stream = machine().sound().stream_alloc(*this, 0, 2, (int)m_rate); // save state save_item(NAME(m_IrqTimA)); @@ -1442,6 +1450,17 @@ void aica_device::device_start() save_item(NAME(m_TimCnt),3); } +//------------------------------------------------- +// device_clock_changed - called if the clock +// changes +//------------------------------------------------- + +void aica_device::device_clock_changed() +{ + ClockChange(); + m_stream->set_sample_rate((int)m_rate); +} + void aica_device::set_ram_base(void *base, int size) { m_AICARAM = (unsigned char *)base; @@ -1481,12 +1500,13 @@ READ16_MEMBER( aica_device::midi_out_r ) return val; } -DEFINE_DEVICE_TYPE(AICA, aica_device, "aica", "AICA") +DEFINE_DEVICE_TYPE(AICA, aica_device, "aica", "Yamaha AICA") aica_device::aica_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, AICA, tag, owner, clock), device_sound_interface(mconfig, *this), m_master(false), + m_rate(44100.0), m_roffset(0), m_irq_cb(*this), m_main_irq_cb(*this), @@ -1498,8 +1518,6 @@ aica_device::aica_device(const machine_config &mconfig, const char *tag, device_ m_AICARAM_LENGTH(0), m_RAM_MASK(0), m_RAM_MASK16(0), - m_buffertmpl(nullptr), - m_buffertmpr(nullptr), m_IrqTimA(0), m_IrqTimBC(0), m_IrqMidi(0), @@ -1651,7 +1669,7 @@ signed int aica_device::AICAALFO_Step(AICA_LFO_t *LFO) void aica_device::AICALFO_ComputeStep(AICA_LFO_t *LFO,uint32_t LFOF,uint32_t LFOWS,uint32_t LFOS,int ALFO) { - float step=(float) LFOFreq[LFOF]*256.0f/(float)44100.0f; + float step=(float) LFOFreq[LFOF]*256.0f/(float)m_rate; LFO->phase_step=(unsigned int) ((float) (1<<LFO_SHIFT)*step); if(ALFO) { |