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-rw-r--r--src/devices/sound/aica.cpp1662
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diff --git a/src/devices/sound/aica.cpp b/src/devices/sound/aica.cpp
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+++ b/src/devices/sound/aica.cpp
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+// license:???
+// copyright-holders:ElSemi, kingshriek, Deunan Knute, R. Belmont
+/*
+ Sega/Yamaha AICA emulation
+ By ElSemi, kingshriek, Deunan Knute, and R. Belmont
+
+ This is effectively a 64-voice SCSP, with the following differences:
+ - No FM mode
+ - A third sample format (ADPCM) has been added
+ - Some minor other tweeks (no EGHOLD, slighly more capable DSP)
+*/
+
+#include "emu.h"
+#include "aica.h"
+
+#define ICLIP16(x) (x<-32768)?-32768:((x>32767)?32767:x)
+
+#define SHIFT 12
+#define FIX(v) ((UINT32) ((float) (1<<SHIFT)*(v)))
+
+#define EG_SHIFT 16
+#define LFO_SHIFT 8
+
+#define LFIX(v) ((unsigned int) ((float) (1<<LFO_SHIFT)*(v)))
+
+//Convert DB to multiply amplitude
+#define DB(v) LFIX(powf(10.0f,v/20.0f))
+
+//Convert cents to step increment
+#define CENTS(v) LFIX(powf(2.0f,v/1200.0f))
+
+/*
+ AICA features 64 programmable slots
+ that can generate PCM and ADPCM (from ROM/RAM) sound
+*/
+
+//SLOT PARAMETERS
+#define KEYONEX(slot) ((slot->udata.data[0x0]>>0x0)&0x8000)
+#define KEYONB(slot) ((slot->udata.data[0x0]>>0x0)&0x4000)
+#define SSCTL(slot) ((slot->udata.data[0x0]>>0xA)&0x0001)
+#define LPCTL(slot) ((slot->udata.data[0x0]>>0x9)&0x0001)
+#define PCMS(slot) ((slot->udata.data[0x0]>>0x7)&0x0003)
+
+#define SA(slot) (((slot->udata.data[0x0]&0x7F)<<16)|(slot->udata.data[0x4/2]))
+
+#define LSA(slot) (slot->udata.data[0x8/2])
+
+#define LEA(slot) (slot->udata.data[0xc/2])
+
+#define D2R(slot) ((slot->udata.data[0x10/2]>>0xB)&0x001F)
+#define D1R(slot) ((slot->udata.data[0x10/2]>>0x6)&0x001F)
+#define AR(slot) ((slot->udata.data[0x10/2]>>0x0)&0x001F)
+
+#define LPSLNK(slot) ((slot->udata.data[0x14/2]>>0x0)&0x4000)
+#define KRS(slot) ((slot->udata.data[0x14/2]>>0xA)&0x000F)
+#define DL(slot) ((slot->udata.data[0x14/2]>>0x5)&0x001F)
+#define RR(slot) ((slot->udata.data[0x14/2]>>0x0)&0x001F)
+
+#define TL(slot) ((slot->udata.data[0x28/2]>>0x8)&0x00FF)
+
+#define OCT(slot) ((slot->udata.data[0x18/2]>>0xB)&0x000F)
+#define FNS(slot) ((slot->udata.data[0x18/2]>>0x0)&0x03FF)
+
+#define LFORE(slot) ((slot->udata.data[0x1c/2]>>0x0)&0x8000)
+#define LFOF(slot) ((slot->udata.data[0x1c/2]>>0xA)&0x001F)
+#define PLFOWS(slot) ((slot->udata.data[0x1c/2]>>0x8)&0x0003)
+#define PLFOS(slot) ((slot->udata.data[0x1c/2]>>0x5)&0x0007)
+#define ALFOWS(slot) ((slot->udata.data[0x1c/2]>>0x3)&0x0003)
+#define ALFOS(slot) ((slot->udata.data[0x1c/2]>>0x0)&0x0007)
+
+#define ISEL(slot) ((slot->udata.data[0x20/2]>>0x0)&0x000F)
+#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 EFSDL(slot) ((m_EFSPAN[slot*4]>>8)&0x000f)
+#define EFPAN(slot) ((m_EFSPAN[slot*4]>>0)&0x001f)
+
+//Envelope times in ms
+static const double ARTimes[64]={100000/*infinity*/,100000/*infinity*/,8100.0,6900.0,6000.0,4800.0,4000.0,3400.0,3000.0,2400.0,2000.0,1700.0,1500.0,
+ 1200.0,1000.0,860.0,760.0,600.0,500.0,430.0,380.0,300.0,250.0,220.0,190.0,150.0,130.0,110.0,95.0,
+ 76.0,63.0,55.0,47.0,38.0,31.0,27.0,24.0,19.0,15.0,13.0,12.0,9.4,7.9,6.8,6.0,4.7,3.8,3.4,3.0,2.4,
+ 2.0,1.8,1.6,1.3,1.1,0.93,0.85,0.65,0.53,0.44,0.40,0.35,0.0,0.0};
+static const double DRTimes[64]={100000/*infinity*/,100000/*infinity*/,118200.0,101300.0,88600.0,70900.0,59100.0,50700.0,44300.0,35500.0,29600.0,25300.0,22200.0,17700.0,
+ 14800.0,12700.0,11100.0,8900.0,7400.0,6300.0,5500.0,4400.0,3700.0,3200.0,2800.0,2200.0,1800.0,1600.0,1400.0,1100.0,
+ 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 MEM4B(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)
+#define RBL(aica) ((m_udata.data[2]>>0xD)&0x0003)
+#define RBP(aica) ((m_udata.data[2]>>0x0)&0x0fff)
+#define MOFULL(aica) ((m_udata.data[4]>>0x0)&0x1000)
+#define MOEMPTY(aica) ((m_udata.data[4]>>0x0)&0x0800)
+#define MIOVF(aica) ((m_udata.data[4]>>0x0)&0x0400)
+#define MIFULL(aica) ((m_udata.data[4]>>0x0)&0x0200)
+#define MIEMPTY(aica) ((m_udata.data[4]>>0x0)&0x0100)
+
+#define AFSEL(aica) ((m_udata.data[0xc/2]>>0x0)&0x4000)
+#define MSLC(aica) ((m_udata.data[0xc/2]>>0x8)&0x3F)
+
+#define SCILV0(aica) ((m_udata.data[0xa8/2]>>0x0)&0xff)
+#define SCILV1(aica) ((m_udata.data[0xac/2]>>0x0)&0xff)
+#define SCILV2(aica) ((m_udata.data[0xb0/2]>>0x0)&0xff)
+
+#define MCIEB(aica) ((m_udata.data[0xb4/2]>>0x0)&0xff)
+#define MCIPD(aica) ((m_udata.data[0xb8/2]>>0x0)&0xff)
+#define MCIRE(aica) ((m_udata.data[0xbc/2]>>0x0)&0xff)
+
+#define SCIEX0 0
+#define SCIEX1 1
+#define SCIEX2 2
+#define SCIMID 3
+#define SCIDMA 4
+#define SCIIRQ 5
+#define SCITMA 6
+#define SCITMB 7
+
+static const float SDLT[16]={-1000000.0,-42.0,-39.0,-36.0,-33.0,-30.0,-27.0,-24.0,-21.0,-18.0,-15.0,-12.0,-9.0,-6.0,-3.0,0.0};
+
+unsigned char aica_device::DecodeSCI(unsigned char irq)
+{
+ unsigned char SCI=0;
+ unsigned char v;
+ v=(SCILV0((AICA))&(1<<irq))?1:0;
+ SCI|=v;
+ v=(SCILV1((AICA))&(1<<irq))?1:0;
+ SCI|=v<<1;
+ v=(SCILV2((AICA))&(1<<irq))?1:0;
+ SCI|=v<<2;
+ return SCI;
+}
+
+void aica_device::ResetInterrupts()
+{
+#if 0
+ UINT32 reset = m_udata.data[0xa4/2];
+
+ if (reset & 0x40)
+ m_irq_cb(-m_IrqTimA);
+ if (reset & 0x180)
+ m_irq_cb(-m_IrqTimBC);
+#endif
+}
+
+void aica_device::CheckPendingIRQ()
+{
+ UINT32 pend=m_udata.data[0xa0/2];
+ UINT32 en=m_udata.data[0x9c/2];
+
+ if(m_MidiW!=m_MidiR)
+ {
+ m_IRQL = m_IrqMidi;
+ m_irq_cb(1);
+ return;
+ }
+ if(!pend)
+ return;
+ if(pend&0x40)
+ if(en&0x40)
+ {
+ m_IRQL = m_IrqTimA;
+ m_irq_cb(1);
+ return;
+ }
+ if(pend&0x80)
+ if(en&0x80)
+ {
+ m_IRQL = m_IrqTimBC;
+ m_irq_cb(1);
+ return;
+ }
+ if(pend&0x100)
+ if(en&0x100)
+ {
+ m_IRQL = m_IrqTimBC;
+ m_irq_cb(1);
+ return;
+ }
+}
+
+void aica_device::CheckPendingIRQ_SH4()
+{
+ if(m_mcipd & m_mcieb)
+ m_main_irq_cb(1);
+
+ if((m_mcipd & m_mcieb) == 0)
+ m_main_irq_cb(0);
+}
+
+TIMER_CALLBACK_MEMBER( aica_device::timerA_cb )
+{
+ m_TimCnt[0] = 0xFFFF;
+ m_udata.data[0xa0/2]|=0x40;
+ m_mcipd |= 0x40;
+ m_udata.data[0x90/2]&=0xff00;
+ m_udata.data[0x90/2]|=m_TimCnt[0]>>8;
+
+ CheckPendingIRQ();
+ CheckPendingIRQ_SH4();
+
+}
+
+TIMER_CALLBACK_MEMBER( aica_device::timerB_cb )
+{
+ m_TimCnt[1] = 0xFFFF;
+ m_udata.data[0xa0/2]|=0x80;
+ m_mcipd |= 0x80;
+ m_udata.data[0x94/2]&=0xff00;
+ m_udata.data[0x94/2]|=m_TimCnt[1]>>8;
+
+ CheckPendingIRQ();
+ CheckPendingIRQ_SH4();
+}
+
+TIMER_CALLBACK_MEMBER( aica_device::timerC_cb )
+{
+ m_TimCnt[2] = 0xFFFF;
+ m_udata.data[0xa0/2]|=0x100;
+ m_mcipd |= 0x100;
+ m_udata.data[0x98/2]&=0xff00;
+ m_udata.data[0x98/2]|=m_TimCnt[2]>>8;
+
+ CheckPendingIRQ();
+ CheckPendingIRQ_SH4();
+}
+
+int aica_device::Get_AR(int base,int R)
+{
+ int Rate=base+(R<<1);
+ if(Rate>63) Rate=63;
+ if(Rate<0) Rate=0;
+ return m_ARTABLE[Rate];
+}
+
+int aica_device::Get_DR(int base,int R)
+{
+ int Rate=base+(R<<1);
+ if(Rate>63) Rate=63;
+ if(Rate<0) Rate=0;
+ return m_DRTABLE[Rate];
+}
+
+int aica_device::Get_RR(int base,int R)
+{
+ int Rate=base+(R<<1);
+ if(Rate>63) Rate=63;
+ if(Rate<0) Rate=0;
+ return m_DRTABLE[Rate];
+}
+
+void aica_device::Compute_EG(AICA_SLOT *slot)
+{
+ int octave=(OCT(slot)^8)-8;
+ int rate;
+ if(KRS(slot)!=0xf)
+ rate=octave+2*KRS(slot)+((FNS(slot)>>9)&1);
+ else
+ rate=0; //rate=((FNS(slot)>>9)&1);
+
+ slot->EG.volume=0x17f<<EG_SHIFT;
+ slot->EG.AR=Get_AR(rate,AR(slot));
+ slot->EG.D1R=Get_DR(rate,D1R(slot));
+ slot->EG.D2R=Get_DR(rate,D2R(slot));
+ slot->EG.RR=Get_RR(rate,RR(slot));
+ slot->EG.RR=Get_RR(rate,RR(slot));
+ slot->EG.DL=0x1f-DL(slot);
+}
+
+int aica_device::EG_Update(AICA_SLOT *slot)
+{
+ switch(slot->EG.state)
+ {
+ case AICA_ATTACK:
+ slot->EG.volume+=slot->EG.AR;
+ if(slot->EG.volume>=(0x3ff<<EG_SHIFT))
+ {
+ if (!LPSLNK(slot) && slot->EG.D1R)
+ {
+ slot->EG.state=AICA_DECAY1;
+ if(slot->EG.D1R>=(1024<<EG_SHIFT) && slot->EG.D2R) //Skip DECAY1, go directly to DECAY2
+ slot->EG.state=AICA_DECAY2;
+ }
+ slot->EG.volume=0x3ff<<EG_SHIFT;
+ }
+ break;
+ case AICA_DECAY1:
+ slot->EG.volume-=slot->EG.D1R;
+ if(slot->EG.volume<=0)
+ slot->EG.volume=0;
+ if(slot->EG.volume>>(EG_SHIFT+5)<=slot->EG.DL)
+ slot->EG.state=AICA_DECAY2;
+ break;
+ case AICA_DECAY2:
+ if(D2R(slot)==0)
+ return (slot->EG.volume>>EG_SHIFT)<<(SHIFT-10);
+ slot->EG.volume-=slot->EG.D2R;
+ if(slot->EG.volume<=0)
+ slot->EG.volume=0;
+
+ break;
+ case AICA_RELEASE:
+ slot->EG.volume-=slot->EG.RR;
+ if(slot->EG.volume<=0)
+ {
+ slot->EG.volume=0;
+ StopSlot(slot,0);
+// slot->EG.volume=0x17f<<EG_SHIFT;
+// slot->EG.state=AICA_ATTACK;
+ }
+ break;
+ default:
+ return 1<<SHIFT;
+ }
+ return (slot->EG.volume>>EG_SHIFT)<<(SHIFT-10);
+}
+
+UINT32 aica_device::Step(AICA_SLOT *slot)
+{
+ int octave=(OCT(slot)^8)-8+SHIFT-10;
+ UINT32 Fn=FNS(slot) + (0x400);
+ if (octave >= 0)
+ Fn<<=octave;
+ else
+ Fn>>=-octave;
+ return Fn;
+}
+
+
+void aica_device::Compute_LFO(AICA_SLOT *slot)
+{
+ if(PLFOS(slot)!=0)
+ AICALFO_ComputeStep(&(slot->PLFO),LFOF(slot),PLFOWS(slot),PLFOS(slot),0);
+ if(ALFOS(slot)!=0)
+ AICALFO_ComputeStep(&(slot->ALFO),LFOF(slot),ALFOWS(slot),ALFOS(slot),1);
+}
+
+#define ADPCMSHIFT 8
+#define ADFIX(f) (int) ((float) f*(float) (1<<ADPCMSHIFT))
+
+static const int TableQuant[8]={ADFIX(0.8984375),ADFIX(0.8984375),ADFIX(0.8984375),ADFIX(0.8984375),ADFIX(1.19921875),ADFIX(1.59765625),ADFIX(2.0),ADFIX(2.3984375)};
+static const int quant_mul[16]= { 1, 3, 5, 7, 9, 11, 13, 15, -1, -3, -5, -7, -9, -11, -13, -15};
+
+void aica_device::InitADPCM(int *PrevSignal, int *PrevQuant)
+{
+ *PrevSignal=0;
+ *PrevQuant=0x7f;
+}
+
+signed short aica_device::DecodeADPCM(int *PrevSignal, unsigned char Delta, int *PrevQuant)
+{
+ int x = *PrevQuant * quant_mul [Delta & 15];
+ x = *PrevSignal + ((int)(x + ((UINT32)x >> 29)) >> 3);
+ *PrevSignal=ICLIP16(x);
+ *PrevQuant=(*PrevQuant*TableQuant[Delta&7])>>ADPCMSHIFT;
+ *PrevQuant=(*PrevQuant<0x7f)?0x7f:((*PrevQuant>0x6000)?0x6000:*PrevQuant);
+ return *PrevSignal;
+}
+
+void aica_device::StartSlot(AICA_SLOT *slot)
+{
+ UINT64 start_offset;
+
+ slot->active=1;
+ slot->Backwards=0;
+ slot->cur_addr=0; slot->nxt_addr=1<<SHIFT; slot->prv_addr=-1;
+ start_offset = SA(slot); // AICA can play 16-bit samples from any boundry
+ slot->base=&m_AICARAM[start_offset];
+ slot->step=Step(slot);
+ Compute_EG(slot);
+ slot->EG.state=AICA_ATTACK;
+ slot->EG.volume=0x17f<<EG_SHIFT;
+ Compute_LFO(slot);
+
+ if (PCMS(slot) >= 2)
+ {
+ slot->curstep = 0;
+ slot->adbase = (unsigned char *) (m_AICARAM+((SA(slot))&0x7fffff));
+ InitADPCM(&(slot->cur_sample), &(slot->cur_quant));
+ InitADPCM(&(slot->cur_lpsample), &(slot->cur_lpquant));
+
+ // on real hardware this creates undefined behavior.
+ if (LSA(slot) > LEA(slot))
+ {
+ slot->udata.data[0xc/2] = 0xffff;
+ }
+ }
+}
+
+void aica_device::StopSlot(AICA_SLOT *slot,int keyoff)
+{
+ if(keyoff /*&& slot->EG.state!=AICA_RELEASE*/)
+ {
+ slot->EG.state=AICA_RELEASE;
+ }
+ else
+ {
+ slot->active=0;
+ slot->lpend = 1;
+ }
+ slot->udata.data[0]&=~0x4000;
+}
+
+#define log_base_2(n) (log((float) n)/log((float) 2))
+
+void aica_device::Init()
+{
+ int i;
+
+ m_IrqTimA = m_IrqTimBC = m_IrqMidi = 0;
+ m_MidiR=m_MidiW=0;
+ m_MidiOutR=m_MidiOutW=0;
+
+ // get AICA RAM
+ {
+ m_AICARAM = region()->base();
+ if (m_AICARAM)
+ {
+ m_AICARAM += m_roffset;
+ m_AICARAM_LENGTH = region()->bytes();
+ m_RAM_MASK = m_AICARAM_LENGTH-1;
+ m_RAM_MASK16 = m_RAM_MASK & 0x7ffffe;
+ m_DSP.AICARAM = (UINT16 *)m_AICARAM;
+ m_DSP.AICARAM_LENGTH = m_AICARAM_LENGTH/2;
+ }
+ }
+
+ m_timerA = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(aica_device::timerA_cb), this));
+ m_timerB = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(aica_device::timerB_cb), this));
+ m_timerC = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(aica_device::timerC_cb), this));
+
+ for(i=0;i<0x400;++i)
+ {
+ float envDB=((float)(3*(i-0x3ff)))/32.0f;
+ float scale=(float)(1<<SHIFT);
+ m_EG_TABLE[i]=(INT32)(powf(10.0f,envDB/20.0f)*scale);
+ }
+
+ for(i=0;i<0x20000;++i)
+ {
+ int iTL =(i>>0x0)&0xff;
+ int iPAN=(i>>0x8)&0x1f;
+ int iSDL=(i>>0xD)&0x0F;
+ float TL=1.0;
+ float SegaDB=0;
+ float fSDL=1.0;
+ float PAN=1.0;
+ float LPAN,RPAN;
+
+ if(iTL&0x01) SegaDB-=0.4f;
+ if(iTL&0x02) SegaDB-=0.8f;
+ if(iTL&0x04) SegaDB-=1.5f;
+ if(iTL&0x08) SegaDB-=3.0f;
+ if(iTL&0x10) SegaDB-=6.0f;
+ if(iTL&0x20) SegaDB-=12.0f;
+ if(iTL&0x40) SegaDB-=24.0f;
+ if(iTL&0x80) SegaDB-=48.0f;
+
+ TL=powf(10.0f,SegaDB/20.0f);
+
+ SegaDB=0;
+ if(iPAN&0x1) SegaDB-=3.0f;
+ if(iPAN&0x2) SegaDB-=6.0f;
+ if(iPAN&0x4) SegaDB-=12.0f;
+ if(iPAN&0x8) SegaDB-=24.0f;
+
+ if((iPAN&0xf)==0xf) PAN=0.0;
+ else PAN=powf(10.0f,SegaDB/20.0f);
+
+ if(iPAN<0x10)
+ {
+ LPAN=PAN;
+ RPAN=1.0;
+ }
+ else
+ {
+ RPAN=PAN;
+ LPAN=1.0;
+ }
+
+ if(iSDL)
+ fSDL=powf(10.0f,(SDLT[iSDL])/20.0f);
+ else
+ fSDL=0.0;
+
+ m_LPANTABLE[i]=FIX((4.0f*LPAN*TL*fSDL));
+ m_RPANTABLE[i]=FIX((4.0f*RPAN*TL*fSDL));
+ }
+
+ 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);
+ }
+
+ // make sure all the slots are off
+ for(i=0;i<64;++i)
+ {
+ m_Slots[i].slot=i;
+ m_Slots[i].active=0;
+ m_Slots[i].base=NULL;
+ m_Slots[i].EG.state=AICA_RELEASE;
+ m_Slots[i].lpend=1;
+ }
+
+ AICALFO_Init();
+ m_buffertmpl=auto_alloc_array_clear(machine(), signed int, 44100);
+ m_buffertmpr=auto_alloc_array_clear(machine(), signed int, 44100);
+
+ // no "pend"
+ m_udata.data[0xa0/2] = 0;
+ //AICA[1].udata.data[0x20/2] = 0;
+ m_TimCnt[0] = 0xffff;
+ m_TimCnt[1] = 0xffff;
+ m_TimCnt[2] = 0xffff;
+}
+
+void aica_device::UpdateSlotReg(int s,int r)
+{
+ AICA_SLOT *slot=m_Slots+s;
+ int sl;
+ switch(r&0x7f)
+ {
+ case 0:
+ case 1:
+ if(KEYONEX(slot))
+ {
+ for(sl=0;sl<64;++sl)
+ {
+ AICA_SLOT *s2=m_Slots+sl;
+ {
+ if(KEYONB(s2) && s2->EG.state==AICA_RELEASE/*&& !s2->active*/)
+ {
+ s2->lpend = 0;
+ StartSlot(s2);
+ #if 0
+ printf("StartSlot[%02X]: SSCTL %01X SA %06X LSA %04X LEA %04X PCMS %01X LPCTL %01X\n",sl,SSCTL(s2),SA(s2),LSA(s2),LEA(s2),PCMS(s2),LPCTL(s2));
+ printf(" AR %02X D1R %02X D2R %02X RR %02X DL %02X KRS %01X LPSLNK %01X\n",AR(s2),D1R(s2),D2R(s2),RR(s2),DL(s2),KRS(s2),LPSLNK(s2)>>14);
+ printf(" TL %02X OCT %01X FNS %03X\n",TL(s2),OCT(s2),FNS(s2));
+ printf(" LFORE %01X LFOF %02X ALFOWS %01X ALFOS %01X PLFOWS %01X PLFOS %01X\n",LFORE(s2),LFOF(s2),ALFOWS(s2),ALFOS(s2),PLFOWS(s2),PLFOS(s2));
+ printf(" IMXL %01X ISEL %01X DISDL %01X DIPAN %02X\n",IMXL(s2),ISEL(s2),DISDL(s2),DIPAN(s2));
+ printf("\n");
+ fflush(stdout);
+ #endif
+ }
+ if(!KEYONB(s2) /*&& s2->active*/)
+ {
+ StopSlot(s2,1);
+ }
+ }
+ }
+ slot->udata.data[0]&=~0x8000;
+ }
+ break;
+ case 0x18:
+ case 0x19:
+ slot->step=Step(slot);
+ break;
+ case 0x14:
+ case 0x15:
+ slot->EG.RR=Get_RR(0,RR(slot));
+ slot->EG.DL=0x1f-DL(slot);
+ break;
+ case 0x1c:
+ case 0x1d:
+ Compute_LFO(slot);
+ break;
+ case 0x24:
+// printf("[%02d]: %x to DISDL/DIPAN (PC=%x)\n", s, slot->udata.data[0x24/2], arm7_get_register(15));
+ break;
+ }
+}
+
+void aica_device::UpdateReg(address_space &space, int reg)
+{
+ switch(reg&0xff)
+ {
+ case 0x4:
+ case 0x5:
+ {
+ unsigned int v=RBL();
+ m_DSP.RBP=RBP();
+ if(v==0)
+ m_DSP.RBL=8*1024;
+ else if(v==1)
+ m_DSP.RBL=16*1024;
+ else if(v==2)
+ m_DSP.RBL=32*1024;
+ else if(v==3)
+ m_DSP.RBL=64*1024;
+ }
+ break;
+ case 0x8:
+ case 0x9:
+ midi_in(space, 0, m_udata.data[0x8/2]&0xff, 0xffff);
+ break;
+
+ //case 0x0c:
+ //case 0x0d:
+ // printf("%04x\n",m_udata.data[0xc/2]);
+ // break;
+
+ case 0x12:
+ case 0x13:
+ case 0x14:
+ case 0x15:
+ case 0x16:
+ case 0x17:
+ break;
+
+ case 0x80:
+ case 0x81:
+ m_dma.dmea = ((m_udata.data[0x80/2] & 0xfe00) << 7) | (m_dma.dmea & 0xfffc);
+ /* TODO: $TSCD - MRWINH regs */
+ break;
+
+ case 0x84:
+ case 0x85:
+ m_dma.dmea = (m_udata.data[0x84/2] & 0xfffc) | (m_dma.dmea & 0x7f0000);
+ break;
+
+ case 0x88:
+ case 0x89:
+ m_dma.drga = (m_udata.data[0x88/2] & 0x7ffc);
+ m_dma.dgate = (m_udata.data[0x88/2] & 0x8000) >> 15;
+ break;
+
+ case 0x8c:
+ case 0x8d:
+ m_dma.dlg = (m_udata.data[0x8c/2] & 0x7ffc);
+ m_dma.ddir = (m_udata.data[0x8c/2] & 0x8000) >> 15;
+ if(m_udata.data[0x8c/2] & 1) // dexe
+ aica_exec_dma(space);
+ break;
+
+ case 0x90:
+ case 0x91:
+ if(m_master)
+ {
+ UINT32 time;
+
+ m_TimPris[0]=1<<((m_udata.data[0x90/2]>>8)&0x7);
+ m_TimCnt[0]=(m_udata.data[0x90/2]&0xff)<<8;
+
+ if ((m_udata.data[0x90/2]&0xff) != 255)
+ {
+ time = (44100 / m_TimPris[0]) / (255-(m_udata.data[0x90/2]&0xff));
+ if (time)
+ {
+ m_timerA->adjust(attotime::from_hz(time));
+ }
+ }
+ }
+ break;
+ case 0x94:
+ case 0x95:
+ if(m_master)
+ {
+ UINT32 time;
+
+ m_TimPris[1]=1<<((m_udata.data[0x94/2]>>8)&0x7);
+ m_TimCnt[1]=(m_udata.data[0x94/2]&0xff)<<8;
+
+ if ((m_udata.data[0x94/2]&0xff) != 255)
+ {
+ time = (44100 / m_TimPris[1]) / (255-(m_udata.data[0x94/2]&0xff));
+ if (time)
+ {
+ m_timerB->adjust(attotime::from_hz(time));
+ }
+ }
+ }
+ break;
+ case 0x98:
+ case 0x99:
+ if(m_master)
+ {
+ UINT32 time;
+
+ m_TimPris[2]=1<<((m_udata.data[0x98/2]>>8)&0x7);
+ m_TimCnt[2]=(m_udata.data[0x98/2]&0xff)<<8;
+
+ if ((m_udata.data[0x98/2]&0xff) != 255)
+ {
+ time = (44100 / m_TimPris[2]) / (255-(m_udata.data[0x98/2]&0xff));
+ if (time)
+ {
+ m_timerC->adjust(attotime::from_hz(time));
+ }
+ }
+ }
+ break;
+
+ case 0x9c: //SCIEB
+ case 0x9d:
+ if(m_udata.data[0x9c/2] & 0x631)
+ popmessage("AICA: SCIEB enabled %04x, contact MAME/MESSdev",m_udata.data[0x9c/2]);
+ break;
+
+ case 0xa4: //SCIRE
+ case 0xa5:
+
+ if(m_master)
+ {
+ m_udata.data[0xa0/2] &= ~m_udata.data[0xa4/2];
+ ResetInterrupts();
+
+ // behavior from real hardware (SCSP, assumed to carry over): if you SCIRE a timer that's expired,
+ // it'll immediately pop up again
+ if (m_TimCnt[0] >= 0xff00)
+ {
+ m_udata.data[0xa0/2] |= 0x40;
+ }
+ if (m_TimCnt[1] >= 0xff00)
+ {
+ m_udata.data[0xa0/2] |= 0x80;
+ }
+ if (m_TimCnt[2] >= 0xff00)
+ {
+ m_udata.data[0xa0/2] |= 0x100;
+ }
+ }
+ break;
+ case 0xa8:
+ case 0xa9:
+ case 0xac:
+ case 0xad:
+ case 0xb0:
+ case 0xb1:
+ if(m_master)
+ {
+ m_IrqTimA=DecodeSCI(SCITMA);
+ m_IrqTimBC=DecodeSCI(SCITMB);
+ m_IrqMidi=DecodeSCI(SCIMID);
+ }
+ break;
+
+ case 0xb4: //MCIEB
+ case 0xb5:
+ if(m_udata.data[0xb4/2] & 0x7df)
+ popmessage("AICA: MCIEB enabled %04x, contact MAME/MESSdev",m_udata.data[0xb4/2]);
+ m_mcieb = m_udata.data[0xb4/2];
+ CheckPendingIRQ_SH4();
+ break;
+
+ case 0xb8:
+ case 0xb9:
+ if(m_udata.data[0xb8/2] & 0x20)
+ m_mcipd |= 0x20;
+ CheckPendingIRQ_SH4();
+ break;
+
+ case 0xbc:
+ case 0xbd:
+ m_mcipd &= ~m_udata.data[0xbc/2];
+ CheckPendingIRQ_SH4();
+ break;
+ }
+}
+
+void aica_device::UpdateSlotRegR(int slot,int reg)
+{
+}
+
+void aica_device::UpdateRegR(address_space &space, int reg)
+{
+ switch(reg&0xff)
+ {
+ case 8:
+ case 9:
+ {
+ unsigned short v=m_udata.data[0x8/2];
+ v&=0xff00;
+ v|=m_MidiStack[m_MidiR];
+ m_irq_cb(0); // cancel the IRQ
+ if(m_MidiR!=m_MidiW)
+ {
+ ++m_MidiR;
+ m_MidiR&=15;
+ }
+ m_udata.data[0x8/2]=v;
+ }
+ break;
+
+ case 0x10: // LP check
+ case 0x11:
+ {
+ int slotnum = MSLC();
+ AICA_SLOT *slot=m_Slots + slotnum;
+ UINT16 LP = 0;
+ if (!(AFSEL()))
+ {
+ UINT16 SGC;
+ int EG;
+
+ LP = slot->lpend ? 0x8000 : 0x0000;
+ slot->lpend = 0;
+ SGC = (slot->EG.state << 13) & 0x6000;
+ EG = slot->active ? slot->EG.volume : 0;
+ EG >>= (EG_SHIFT - 13);
+ EG = 0x1FFF - EG;
+ if (EG < 0) EG = 0;
+
+ m_udata.data[0x10/2] = (EG & 0x1FF8) | SGC | LP;
+ }
+ else
+ {
+ LP = slot->lpend ? 0x8000 : 0x0000;
+ m_udata.data[0x10/2] = LP;
+ }
+ }
+ break;
+
+ case 0x14: // CA (slot address)
+ case 0x15:
+ {
+ //m_stream->update();
+ int slotnum = MSLC();
+ AICA_SLOT *slot=m_Slots+slotnum;
+ unsigned int CA = 0;
+
+ if (PCMS(slot) == 0) // 16-bit samples
+ {
+ CA = (slot->cur_addr>>(SHIFT-1))&m_RAM_MASK16;
+ }
+ else // 8-bit PCM and 4-bit ADPCM
+ {
+ CA = (slot->cur_addr>>SHIFT)&m_RAM_MASK;
+ }
+
+ //printf("%08x %08x\n",CA,slot->cur_addr&m_RAM_MASK16);
+
+ m_udata.data[0x14/2] = CA;
+ }
+ break;
+ case 0xb8:
+ case 0xb9:
+ m_udata.data[0xb8/2] = m_mcipd;
+ break;
+ }
+}
+
+void aica_device::w16(address_space &space,unsigned int addr,unsigned short val)
+{
+ addr&=0xffff;
+ if(addr<0x2000)
+ {
+ int slot=addr/0x80;
+ addr&=0x7f;
+// printf("%x to slot %d offset %x\n", val, slot, addr);
+ *((unsigned short *) (m_Slots[slot].udata.datab+(addr))) = val;
+ UpdateSlotReg(slot,addr&0x7f);
+ }
+ else if (addr < 0x2800)
+ {
+ if (addr <= 0x2044)
+ {
+// printf("%x to EFSxx slot %d (addr %x)\n", val, (addr-0x2000)/4, addr&0x7f);
+ m_EFSPAN[addr&0x7f] = val;
+ }
+ }
+ else if(addr<0x3000)
+ {
+ if (addr < 0x28be)
+ {
+// printf("%x to AICA global @ %x\n", val, addr & 0xff);
+ *((unsigned short *) (m_udata.datab+((addr&0xff)))) = val;
+ UpdateReg(space, addr&0xff);
+
+ }
+ else if (addr == 0x2d00)
+ {
+ m_IRQL = val;
+ popmessage("AICA: write to IRQL?");
+ }
+ else if (addr == 0x2d04)
+ {
+ m_IRQR = val;
+
+ if (val & 1)
+ {
+ m_irq_cb(0);
+ }
+ if (val & 0x100)
+ popmessage("AICA: SH-4 write protection enabled!");
+
+ if (val & 0xfefe)
+ popmessage("AICA: IRQR %04x!",val);
+ }
+ }
+ else
+ {
+ //DSP
+ if(addr<0x3200) //COEF
+ *((unsigned short *) (m_DSP.COEF+(addr-0x3000)/2))=val;
+ else if(addr<0x3400)
+ *((unsigned short *) (m_DSP.MADRS+(addr-0x3200)/2))=val;
+ else if(addr<0x3c00)
+ {
+ *((unsigned short *) (m_DSP.MPRO+(addr-0x3400)/2))=val;
+
+ if (addr == 0x3bfe)
+ {
+ aica_dsp_start(&m_DSP);
+ }
+ }
+ else if(addr<0x4000)
+ {
+ popmessage("AICADSP write to undocumented reg %04x -> %04x",addr,val);
+ }
+ else if(addr<0x4400)
+ {
+ if(addr & 4)
+ m_DSP.TEMP[(addr >> 3) & 0x7f] = (m_DSP.TEMP[(addr >> 3) & 0x7f] & 0xffff0000) | (val & 0xffff);
+ else
+ m_DSP.TEMP[(addr >> 3) & 0x7f] = (m_DSP.TEMP[(addr >> 3) & 0x7f] & 0xffff) | (val << 16);
+ }
+ else if(addr<0x4500)
+ {
+ if(addr & 4)
+ m_DSP.MEMS[(addr >> 3) & 0x1f] = (m_DSP.MEMS[(addr >> 3) & 0x1f] & 0xffff0000) | (val & 0xffff);
+ else
+ m_DSP.MEMS[(addr >> 3) & 0x1f] = (m_DSP.MEMS[(addr >> 3) & 0x1f] & 0xffff) | (val << 16);
+ }
+ else if(addr<0x4580)
+ {
+ if(addr & 4)
+ m_DSP.MIXS[(addr >> 3) & 0xf] = (m_DSP.MIXS[(addr >> 3) & 0xf] & 0xffff0000) | (val & 0xffff);
+ else
+ m_DSP.MIXS[(addr >> 3) & 0xf] = (m_DSP.MIXS[(addr >> 3) & 0xf] & 0xffff) | (val << 16);
+ }
+ else if(addr<0x45c0)
+ *((unsigned short *) (m_DSP.EFREG+(addr-0x4580)/4))=val;
+ else if(addr<0x45c8)
+ *((unsigned short *) (m_DSP.EXTS+(addr-0x45c0)/2))=val;
+ }
+}
+
+unsigned short aica_device::r16(address_space &space, unsigned int addr)
+{
+ unsigned short v=0;
+ addr&=0xffff;
+ if(addr<0x2000)
+ {
+ int slot=addr/0x80;
+ addr&=0x7f;
+ UpdateSlotRegR(slot,addr&0x7f);
+ v=*((unsigned short *) (m_Slots[slot].udata.datab+(addr)));
+ }
+ else if(addr<0x3000)
+ {
+ if (addr <= 0x2044)
+ {
+ v = m_EFSPAN[addr&0x7f];
+ }
+ else if (addr < 0x28be)
+ {
+ UpdateRegR(space, addr&0xff);
+ v= *((unsigned short *) (m_udata.datab+((addr&0xff))));
+ if((addr&0xfffe)==0x2810) m_udata.data[0x10/2] &= 0x7FFF; // reset LP on read
+ }
+ else if (addr == 0x2d00)
+ {
+ return m_IRQL;
+ }
+ else if (addr == 0x2d04)
+ {
+ //popmessage("AICA: read to IRQR?");
+ return m_IRQR;
+ }
+ }
+ else
+ {
+ if(addr<0x3200) //COEF
+ v= *((unsigned short *) (m_DSP.COEF+(addr-0x3000)/2));
+ else if(addr<0x3400)
+ v= *((unsigned short *) (m_DSP.MADRS+(addr-0x3200)/2));
+ else if(addr<0x3c00)
+ v= *((unsigned short *) (m_DSP.MPRO+(addr-0x3400)/2));
+ else if(addr<0x4000)
+ {
+ v= 0xffff;
+ popmessage("AICADSP read to undocumented reg %04x",addr);
+ }
+ else if(addr<0x4400)
+ {
+ if(addr & 4)
+ v= m_DSP.TEMP[(addr >> 3) & 0x7f] & 0xffff;
+ else
+ v= m_DSP.TEMP[(addr >> 3) & 0x7f] >> 16;
+ }
+ else if(addr<0x4500)
+ {
+ if(addr & 4)
+ v= m_DSP.MEMS[(addr >> 3) & 0x1f] & 0xffff;
+ else
+ v= m_DSP.MEMS[(addr >> 3) & 0x1f] >> 16;
+ }
+ else if(addr<0x4580)
+ {
+ if(addr & 4)
+ v= m_DSP.MIXS[(addr >> 3) & 0xf] & 0xffff;
+ else
+ v= m_DSP.MIXS[(addr >> 3) & 0xf] >> 16;
+ }
+ else if(addr<0x45c0)
+ v = *((unsigned short *) (m_DSP.EFREG+(addr-0x4580)/4));
+ else if(addr<0x45c8)
+ v = *((unsigned short *) (m_DSP.EXTS+(addr-0x45c0)/2));
+ }
+// else if (addr<0x700)
+// v=m_RINGBUF[(addr-0x600)/2];
+ return v;
+}
+
+
+#define REVSIGN(v) ((~v)+1)
+
+#ifdef UNUSED_FUNCTION
+void aica_device::TimersAddTicks(int ticks)
+{
+ if(m_TimCnt[0]<=0xff00)
+ {
+ m_TimCnt[0] += ticks << (8-((m_udata.data[0x18/2]>>8)&0x7));
+ if (m_TimCnt[0] > 0xFF00)
+ {
+ m_TimCnt[0] = 0xFFFF;
+ m_udata.data[0xa0/2]|=0x40;
+ }
+ m_udata.data[0x90/2]&=0xff00;
+ m_udata.data[0x90/2]|=m_TimCnt[0]>>8;
+ }
+
+ if(m_TimCnt[1]<=0xff00)
+ {
+ m_TimCnt[1] += ticks << (8-((m_udata.data[0x1a/2]>>8)&0x7));
+ if (m_TimCnt[1] > 0xFF00)
+ {
+ m_TimCnt[1] = 0xFFFF;
+ m_udata.data[0xa0/2]|=0x80;
+ }
+ m_udata.data[0x94/2]&=0xff00;
+ m_udata.data[0x94/2]|=m_TimCnt[1]>>8;
+ }
+
+ if(m_TimCnt[2]<=0xff00)
+ {
+ m_TimCnt[2] += ticks << (8-((m_udata.data[0x1c/2]>>8)&0x7));
+ if (m_TimCnt[2] > 0xFF00)
+ {
+ m_TimCnt[2] = 0xFFFF;
+ m_udata.data[0xa0/2]|=0x100;
+ }
+ m_udata.data[0x98/2]&=0xff00;
+ m_udata.data[0x98/2]|=m_TimCnt[2]>>8;
+ }
+}
+#endif
+
+INT32 aica_device::UpdateSlot(AICA_SLOT *slot)
+{
+ INT32 sample;
+ int step=slot->step;
+ UINT32 addr1,addr2,addr_select; // current and next sample addresses
+ UINT32 *addr[2] = {&addr1, &addr2}; // used for linear interpolation
+ UINT32 *slot_addr[2] = {&(slot->cur_addr), &(slot->nxt_addr)}; //
+ UINT32 chanlea = LEA(slot);
+
+ if(SSCTL(slot)!=0) //no FM or noise yet
+ return 0;
+
+ if(PCMS(slot) == 3) // Red Dog music relies on this
+ chanlea = (chanlea + 3) & ~3;
+
+ if(PLFOS(slot)!=0)
+ {
+ step=step*AICAPLFO_Step(&(slot->PLFO));
+ step>>=SHIFT;
+ }
+
+ if(PCMS(slot) == 1)
+ {
+ addr1=slot->cur_addr>>SHIFT;
+ addr2=slot->nxt_addr>>SHIFT;
+ }
+ else if(PCMS(slot) == 0)
+ {
+ addr1=(slot->cur_addr>>(SHIFT-1))&m_RAM_MASK16;
+ addr2=(slot->nxt_addr>>(SHIFT-1))&m_RAM_MASK16;
+ }
+ else
+ {
+ addr1=slot->cur_addr>>SHIFT;
+ addr2=slot->nxt_addr>>SHIFT;
+ }
+
+ if(PCMS(slot) == 1) // 8-bit signed
+ {
+ INT8 *p1=(signed char *) (m_AICARAM+(((SA(slot)+addr1))&m_RAM_MASK));
+ INT8 *p2=(signed char *) (m_AICARAM+(((SA(slot)+addr2))&m_RAM_MASK));
+ INT32 s;
+ INT32 fpart=slot->cur_addr&((1<<SHIFT)-1);
+ s=(int) (p1[0]<<8)*((1<<SHIFT)-fpart)+(int) (p2[0]<<8)*fpart;
+ sample=(s>>SHIFT);
+ }
+ else if (PCMS(slot) == 0) //16 bit signed
+ {
+ UINT8 *p1=(UINT8 *) (m_AICARAM+((SA(slot)+addr1)&m_RAM_MASK));
+ UINT8 *p2=(UINT8 *) (m_AICARAM+((SA(slot)+addr2)&m_RAM_MASK));
+ INT32 s;
+ INT32 fpart=slot->cur_addr&((1<<SHIFT)-1);
+ s=(int) ((INT16)(p1[0] | (p1[1]<<8)))*((1<<SHIFT)-fpart)+(int) ((INT16)(p2[0] | (p2[1]<<8)))*fpart;
+ sample=(s>>SHIFT);
+ }
+ else // 4-bit ADPCM
+ {
+ UINT8 *base= slot->adbase;
+ INT32 s;
+ int cur_sample; //current ADPCM sample
+ int nxt_sample; //next ADPCM sample
+ INT32 fpart=slot->cur_addr&((1<<SHIFT)-1);
+ UINT32 steps_to_go = addr1 > addr2 ? chanlea : addr2, curstep = slot->curstep;
+
+ if (slot->adbase)
+ {
+ cur_sample = slot->cur_sample; // may already contains current decoded sample
+
+ // seek to the interpolation sample
+ while (curstep < steps_to_go)
+ {
+ int shift1 = 4 & (curstep << 2);
+ unsigned char delta1 = (*base>>shift1)&0xf;
+ DecodeADPCM(&(slot->cur_sample),delta1,&(slot->cur_quant));
+ if (!(++curstep & 1))
+ base++;
+ if (curstep == addr1)
+ cur_sample = slot->cur_sample;
+ if (curstep == LSA(slot))
+ {
+ slot->cur_lpsample = slot->cur_sample;
+ slot->cur_lpquant = slot->cur_quant;
+ }
+ }
+ nxt_sample = slot->cur_sample;
+
+ slot->adbase = base;
+ slot->curstep = curstep;
+
+ s=(int)cur_sample*((1<<SHIFT)-fpart)+(int)nxt_sample*fpart;
+ }
+ else
+ {
+ s = 0;
+ }
+
+ sample=(s>>SHIFT);
+ }
+
+ slot->prv_addr=slot->cur_addr;
+ slot->cur_addr+=step;
+ slot->nxt_addr=slot->cur_addr+(1<<SHIFT);
+
+ addr1=slot->cur_addr>>SHIFT;
+ addr2=slot->nxt_addr>>SHIFT;
+
+ if(addr1>=LSA(slot))
+ {
+ if(LPSLNK(slot) && slot->EG.state==AICA_ATTACK && slot->EG.D1R)
+ slot->EG.state = AICA_DECAY1;
+ }
+
+ for (addr_select=0; addr_select<2; addr_select++)
+ {
+ INT32 rem_addr;
+ switch(LPCTL(slot))
+ {
+ case 0: //no loop
+ if(*addr[addr_select]>=LSA(slot) && *addr[addr_select]>=chanlea)
+ {
+ StopSlot(slot,0);
+ }
+ break;
+ case 1: //normal loop
+ if(*addr[addr_select]>=chanlea)
+ {
+ slot->lpend = 1;
+ rem_addr = *slot_addr[addr_select] - (chanlea<<SHIFT);
+ *slot_addr[addr_select]=(LSA(slot)<<SHIFT) + rem_addr;
+
+ if(PCMS(slot)>=2 && addr_select == 0)
+ {
+ // restore the state @ LSA - the sampler will naturally walk to (LSA + remainder)
+ slot->adbase = &m_AICARAM[SA(slot)+(LSA(slot)/2)];
+ slot->curstep = LSA(slot);
+ if (PCMS(slot) == 2)
+ {
+ slot->cur_sample = slot->cur_lpsample;
+ slot->cur_quant = slot->cur_lpquant;
+ }
+
+// printf("Looping: slot_addr %x LSA %x LEA %x step %x base %x\n", *slot_addr[addr_select]>>SHIFT, LSA(slot), LEA(slot), slot->curstep, slot->adbase);
+ }
+ }
+ break;
+ }
+ }
+
+ if(ALFOS(slot)!=0)
+ {
+ sample=sample*AICAALFO_Step(&(slot->ALFO));
+ sample>>=SHIFT;
+ }
+
+ if(slot->EG.state==AICA_ATTACK)
+ sample=(sample*EG_Update(slot))>>SHIFT;
+ else
+ sample=(sample*m_EG_TABLE[EG_Update(slot)>>(SHIFT-10)])>>SHIFT;
+
+ return sample;
+}
+
+void aica_device::DoMasterSamples(int nsamples)
+{
+ stream_sample_t *bufr,*bufl;
+ int sl, s, i;
+
+ bufr=m_bufferr;
+ bufl=m_bufferl;
+
+ for(s=0;s<nsamples;++s)
+ {
+ INT32 smpl, smpr;
+
+ smpl = smpr = 0;
+
+ // mix slots' direct output
+ for(sl=0;sl<64;++sl)
+ {
+ AICA_SLOT *slot=m_Slots+sl;
+ m_RBUFDST=m_RINGBUF+m_BUFPTR;
+ if(m_Slots[sl].active)
+ {
+ unsigned int Enc;
+ signed int sample;
+
+ sample=UpdateSlot(slot);
+
+ Enc=((TL(slot))<<0x0)|((IMXL(slot))<<0xd);
+ aica_dsp_setsample(&m_DSP,(sample*m_LPANTABLE[Enc])>>(SHIFT-2),ISEL(slot),IMXL(slot));
+ Enc=((TL(slot))<<0x0)|((DIPAN(slot))<<0x8)|((DISDL(slot))<<0xd);
+ {
+ smpl+=(sample*m_LPANTABLE[Enc])>>SHIFT;
+ smpr+=(sample*m_RPANTABLE[Enc])>>SHIFT;
+ }
+ }
+
+ m_BUFPTR&=63;
+ }
+
+ // process the DSP
+ aica_dsp_step(&m_DSP);
+
+ // mix DSP output
+ for(i=0;i<16;++i)
+ {
+ if(EFSDL(i))
+ {
+ unsigned int Enc=((EFPAN(i))<<0x8)|((EFSDL(i))<<0xd);
+ smpl+=(m_DSP.EFREG[i]*m_LPANTABLE[Enc])>>SHIFT;
+ smpr+=(m_DSP.EFREG[i]*m_RPANTABLE[Enc])>>SHIFT;
+ }
+ }
+
+ *bufl++ = ICLIP16(smpl>>3);
+ *bufr++ = ICLIP16(smpr>>3);
+ }
+}
+
+/* TODO: this needs to be timer-ized */
+void aica_device::aica_exec_dma(address_space &space)
+{
+ static UINT16 tmp_dma[4];
+ int i;
+
+ printf("AICA: DMA transfer START\n"
+ "DMEA: %08x DRGA: %08x DLG: %04x\n"
+ "DGATE: %d DDIR: %d\n",m_dma.dmea,m_dma.drga,m_dma.dlg,m_dma.dgate,m_dma.ddir);
+
+ /* Copy the dma values in a temp storage for resuming later */
+ /* (DMA *can't* overwrite its parameters). */
+ if(!(m_dma.ddir))
+ {
+ for(i=0;i<4;i++)
+ tmp_dma[i] = m_udata.data[(0x80+(i*4))/2];
+ }
+
+ /* note: we don't use space.read_word / write_word because it can happen that SH-4 enables the DMA instead of ARM like in DCLP tester. */
+ /* TODO: don't know if params auto-updates, I guess not ... */
+ if(m_dma.ddir)
+ {
+ if(m_dma.dgate)
+ {
+ for(i=0;i < m_dma.dlg;i+=2)
+ {
+ m_AICARAM[m_dma.dmea] = 0;
+ m_AICARAM[m_dma.dmea+1] = 0;
+ m_dma.dmea+=2;
+ }
+ }
+ else
+ {
+ for(i=0;i < m_dma.dlg;i+=2)
+ {
+ UINT16 tmp;
+ tmp = r16(space, m_dma.drga);;
+ m_AICARAM[m_dma.dmea] = tmp & 0xff;
+ m_AICARAM[m_dma.dmea+1] = tmp>>8;
+ m_dma.dmea+=4;
+ m_dma.drga+=4;
+ }
+ }
+ }
+ else
+ {
+ if(m_dma.dgate)
+ {
+ for(i=0;i < m_dma.dlg;i+=2)
+ {
+ w16(space, m_dma.drga, 0);
+ m_dma.drga+=4;
+ }
+ }
+ else
+ {
+ for(i=0;i < m_dma.dlg;i+=2)
+ {
+ UINT16 tmp;
+ tmp = m_AICARAM[m_dma.dmea];
+ tmp|= m_AICARAM[m_dma.dmea+1]<<8;
+ w16(space, m_dma.drga, tmp);
+ m_dma.dmea+=4;
+ m_dma.drga+=4;
+ }
+ }
+ }
+
+ /*Resume the values*/
+ if(!(m_dma.ddir))
+ {
+ for(i=0;i<4;i++)
+ m_udata.data[(0x80+(i*4))/2] = tmp_dma[i];
+ }
+
+ /* Job done, clear DEXE */
+ m_udata.data[0x8c/2] &= ~1;
+ /* request a dma end irq */
+ m_mcipd |= 0x10;
+ CheckPendingIRQ_SH4();
+}
+
+#ifdef UNUSED_FUNCTION
+int aica_device::IRQCB(void *param)
+{
+ CheckPendingIRQ(param);
+ return -1;
+}
+#endif
+
+//-------------------------------------------------
+// sound_stream_update - handle a stream update
+//-------------------------------------------------
+
+void aica_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
+{
+ m_bufferl = outputs[0];
+ m_bufferr = outputs[1];
+ m_length = samples;
+ DoMasterSamples(samples);
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void aica_device::device_start()
+{
+ // init the emulation
+ Init();
+
+ // set up the IRQ callbacks
+ m_irq_cb.resolve_safe();
+ m_main_irq_cb.resolve_safe();
+
+ m_stream = machine().sound().stream_alloc(*this, 0, 2, 44100);
+
+ // save state
+ save_item(NAME(m_IrqTimA));
+ save_item(NAME(m_IrqTimBC));
+ save_item(NAME(m_IrqMidi));
+ save_item(NAME(m_MidiOutW));
+ save_item(NAME(m_MidiOutR));
+ save_item(NAME(m_MidiStack),16);
+ save_item(NAME(m_MidiW));
+ save_item(NAME(m_MidiR));
+ save_item(NAME(m_LPANTABLE),0x20000);
+ save_item(NAME(m_RPANTABLE),0x20000);
+ save_item(NAME(m_TimPris),3);
+ save_item(NAME(m_TimCnt),3);
+}
+
+void aica_device::set_ram_base(void *base, int size)
+{
+ m_AICARAM = (unsigned char *)base;
+ m_AICARAM_LENGTH = size;
+ m_RAM_MASK = m_AICARAM_LENGTH-1;
+ m_RAM_MASK16 = m_RAM_MASK & 0x7ffffe;
+ m_DSP.AICARAM = (UINT16 *)base;
+ m_DSP.AICARAM_LENGTH = size;
+}
+
+READ16_MEMBER( aica_device::read )
+{
+ return r16(space,offset*2);
+}
+
+WRITE16_MEMBER( aica_device::write )
+{
+ UINT16 tmp;
+
+ tmp = r16(space, offset*2);
+ COMBINE_DATA(&tmp);
+ w16(space, offset*2, tmp);
+}
+
+WRITE16_MEMBER( aica_device::midi_in )
+{
+ m_MidiStack[m_MidiW++]=data;
+ m_MidiW &= 15;
+}
+
+READ16_MEMBER( aica_device::midi_out_r )
+{
+ unsigned char val;
+
+ val=m_MidiStack[m_MidiR++];
+ m_MidiR&=7;
+ return val;
+}
+
+const device_type AICA = &device_creator<aica_device>;
+
+aica_device::aica_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, AICA, "AICA", tag, owner, clock, "aica", __FILE__),
+ device_sound_interface(mconfig, *this),
+ m_master(false),
+ m_roffset(0),
+ m_irq_cb(*this),
+ m_main_irq_cb(*this),
+ m_IRQL(0),
+ m_IRQR(0),
+ m_BUFPTR(0),
+ m_AICARAM(NULL),
+ m_AICARAM_LENGTH(0),
+ m_RAM_MASK(0),
+ m_RAM_MASK16(0),
+ m_buffertmpl(NULL),
+ m_buffertmpr(NULL),
+ m_IrqTimA(0),
+ m_IrqTimBC(0),
+ m_IrqMidi(0),
+ m_MidiOutW(0),
+ m_MidiOutR(0),
+ m_MidiW(0),
+ m_MidiR(0),
+ m_mcieb(0),
+ m_mcipd(0),
+ m_bufferl(NULL),
+ m_bufferr(NULL),
+ m_length(0),
+ m_RBUFDST(NULL)
+
+{
+ memset(&m_udata.data, 0, sizeof(m_udata.data));
+ memset(m_EFSPAN, 0, sizeof(m_EFSPAN));
+ memset(m_Slots, 0, sizeof(m_Slots));
+ memset(m_RINGBUF, 0, sizeof(m_RINGBUF));
+ memset(m_MidiStack, 0, sizeof(m_MidiStack));
+
+ memset(m_LPANTABLE, 0, sizeof(m_LPANTABLE));
+ memset(m_RPANTABLE, 0, sizeof(m_RPANTABLE));
+
+ memset(m_TimPris, 0, sizeof(m_TimPris));
+ memset(m_TimCnt, 0, sizeof(m_TimCnt));
+
+ memset(&m_dma, 0, sizeof(m_dma));
+
+ memset(m_ARTABLE, 0, sizeof(m_ARTABLE));
+ memset(m_DRTABLE, 0, sizeof(m_DRTABLE));
+
+ memset(&m_DSP, 0, sizeof(m_DSP));
+
+ memset(m_EG_TABLE, 0, sizeof(m_EG_TABLE));
+ memset(m_PLFO_TRI, 0, sizeof(m_PLFO_TRI));
+ memset(m_PLFO_SQR, 0, sizeof(m_PLFO_SQR));
+ memset(m_PLFO_SAW, 0, sizeof(m_PLFO_SAW));
+ memset(m_PLFO_NOI, 0, sizeof(m_PLFO_NOI));
+
+ memset(m_ALFO_TRI, 0, sizeof(m_ALFO_TRI));
+ memset(m_ALFO_SQR, 0, sizeof(m_ALFO_SQR));
+ memset(m_ALFO_SAW, 0, sizeof(m_ALFO_SAW));
+ memset(m_ALFO_NOI, 0, sizeof(m_ALFO_NOI));
+
+ memset(m_PSCALES, 0, sizeof(m_PSCALES));
+ memset(m_ASCALES, 0, sizeof(m_ASCALES));
+}
+
+
+static const float LFOFreq[32]={0.17f,0.19f,0.23f,0.27f,0.34f,0.39f,0.45f,0.55f,0.68f,0.78f,0.92f,1.10f,1.39f,1.60f,1.87f,2.27f,
+ 2.87f,3.31f,3.92f,4.79f,6.15f,7.18f,8.60f,10.8f,14.4f,17.2f,21.5f,28.7f,43.1f,57.4f,86.1f,172.3f};
+static const float ASCALE[8]={0.0f,0.4f,0.8f,1.5f,3.0f,6.0f,12.0f,24.0f};
+static const float PSCALE[8]={0.0f,7.0f,13.5f,27.0f,55.0f,112.0f,230.0f,494.0f};
+
+void aica_device::AICALFO_Init()
+{
+ int i,s;
+ for(i=0;i<256;++i)
+ {
+ int a,p;
+// float TL;
+ //Saw
+ a=255-i;
+ if(i<128)
+ p=i;
+ else
+ p=i-256;
+ m_ALFO_SAW[i]=a;
+ m_PLFO_SAW[i]=p;
+
+ //Square
+ if(i<128)
+ {
+ a=255;
+ p=127;
+ }
+ else
+ {
+ a=0;
+ p=-128;
+ }
+ m_ALFO_SQR[i]=a;
+ m_PLFO_SQR[i]=p;
+
+ //Tri
+ if(i<128)
+ a=255-(i*2);
+ else
+ a=(i*2)-256;
+ if(i<64)
+ p=i*2;
+ else if(i<128)
+ p=255-i*2;
+ else if(i<192)
+ p=256-i*2;
+ else
+ p=i*2-511;
+ m_ALFO_TRI[i]=a;
+ m_PLFO_TRI[i]=p;
+
+ //noise
+ //a=lfo_noise[i];
+ a=machine().rand()&0xff;
+ p=128-a;
+ m_ALFO_NOI[i]=a;
+ m_PLFO_NOI[i]=p;
+ }
+
+ for(s=0;s<8;++s)
+ {
+ float limit=PSCALE[s];
+ for(i=-128;i<128;++i)
+ {
+ m_PSCALES[s][i+128]=CENTS(((limit*(float) i)/128.0f));
+ }
+ limit=-ASCALE[s];
+ for(i=0;i<256;++i)
+ {
+ m_ASCALES[s][i]=DB(((limit*(float) i)/256.0f));
+ }
+ }
+}
+
+signed int aica_device::AICAPLFO_Step(AICA_LFO_t *LFO)
+{
+ int p;
+
+ LFO->phase+=LFO->phase_step;
+#if LFO_SHIFT!=8
+ LFO->phase&=(1<<(LFO_SHIFT+8))-1;
+#endif
+ p=LFO->table[LFO->phase>>LFO_SHIFT];
+ p=LFO->scale[p+128];
+ return p<<(SHIFT-LFO_SHIFT);
+}
+
+signed int aica_device::AICAALFO_Step(AICA_LFO_t *LFO)
+{
+ int p;
+ LFO->phase+=LFO->phase_step;
+#if LFO_SHIFT!=8
+ LFO->phase&=(1<<(LFO_SHIFT+8))-1;
+#endif
+ p=LFO->table[LFO->phase>>LFO_SHIFT];
+ p=LFO->scale[p];
+ return p<<(SHIFT-LFO_SHIFT);
+}
+
+void aica_device::AICALFO_ComputeStep(AICA_LFO_t *LFO,UINT32 LFOF,UINT32 LFOWS,UINT32 LFOS,int ALFO)
+{
+ float step=(float) LFOFreq[LFOF]*256.0f/(float)44100.0f;
+ LFO->phase_step=(unsigned int) ((float) (1<<LFO_SHIFT)*step);
+ if(ALFO)
+ {
+ switch(LFOWS)
+ {
+ case 0: LFO->table=m_ALFO_SAW; break;
+ case 1: LFO->table=m_ALFO_SQR; break;
+ case 2: LFO->table=m_ALFO_TRI; break;
+ case 3: LFO->table=m_ALFO_NOI; break;
+ default: printf("Unknown ALFO %d\n", LFOWS);
+ }
+ LFO->scale=m_ASCALES[LFOS];
+ }
+ else
+ {
+ switch(LFOWS)
+ {
+ case 0: LFO->table=m_PLFO_SAW; break;
+ case 1: LFO->table=m_PLFO_SQR; break;
+ case 2: LFO->table=m_PLFO_TRI; break;
+ case 3: LFO->table=m_PLFO_NOI; break;
+ default: printf("Unknown PLFO %d\n", LFOWS);
+ }
+ LFO->scale=m_PSCALES[LFOS];
+ }
+}