// license:BSD-3-Clause // copyright-holders:ElSemi, Deunan Knute, R. Belmont // thanks-to: kingshriek /* Sega/Yamaha AICA emulation 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<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<>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.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.D1R) { slot->EG.state=AICA_DECAY1; if(slot->EG.D1R>=(1024<EG.D2R) //Skip DECAY1, go directly to DECAY2 slot->EG.state=AICA_DECAY2; } slot->EG.volume=0x3ff<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.state=AICA_ATTACK; } break; default: return 1<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<> 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<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<= 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 if (m_ram_region != nullptr) { m_AICARAM = m_ram_region->base(); m_AICARAM += m_roffset; m_AICARAM_LENGTH = m_ram_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<>0x0)&0xff; int iPAN=(i>>0x8)&0x1f; int iSDL=(i>>0xD)&0x0F; float TL; float SegaDB=0; float fSDL; float PAN; 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<(44100); m_buffertmpr=make_unique_clear(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; 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; 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); } 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); } 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< 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); } slot->prv_addr=slot->cur_addr; slot->cur_addr+=step; slot->nxt_addr=slot->cur_addr+(1<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<=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>(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(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_ram_region(*this, this->tag()), m_IRQL(0), m_IRQR(0), m_BUFPTR(0), m_AICARAM(nullptr), 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), m_MidiOutW(0), m_MidiOutR(0), m_MidiW(0), m_MidiR(0), m_mcieb(0), m_mcipd(0), m_bufferl(nullptr), m_bufferr(nullptr), m_length(0), m_RBUFDST(nullptr) { 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<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]; } }