/* * Apple // emulator for *ix * * This software package is subject to the GNU General Public License * version 3 or later (your choice) as published by the Free Software * Foundation. * * Copyright 2013-2015 Aaron Culliney * */ /* AppleWin : An Apple //e emulator for Windows Copyright (C) 1994-1996, Michael O'Brien Copyright (C) 1999-2001, Oliver Schmidt Copyright (C) 2002-2005, Tom Charlesworth Copyright (C) 2006-2007, Tom Charlesworth, Michael Pohoreski AppleWin is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. AppleWin is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with AppleWin; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* Description: Mockingboard/Phasor emulation * * Author: Copyright (c) 2002-2006, Tom Charlesworth */ #define DSBCAPS_LOCSOFTWARE 0x00000008 #define DSBCAPS_CTRLVOLUME 0x00000080 #define DSBCAPS_CTRLPOSITIONNOTIFY 0x00000100 #define DSBVOLUME_MIN -10000 #define DSBVOLUME_MAX 0 // History: // // v1.12.07.1 (30 Dec 2005) // - Update 6522 TIMERs after every 6502 opcode, giving more precise IRQs // - Minimum TIMER freq is now 0x100 cycles // - Added Phasor support // // v1.12.06.1 (16 July 2005) // - Reworked 6522's ORB -> AY8910 decoder // - Changed MB output so L=All voices from AY0 & AY2 & R=All voices from AY1 & AY3 // - Added crude support for Votrax speech chip (by using SSI263 phonemes) // // v1.12.04.1 (14 Sep 2004) // - Switch MB output from dual-mono to stereo. // - Relaxed TIMER1 freq from ~62Hz (period=0x4000) to ~83Hz (period=0x3000). // // 25 Apr 2004: // - Added basic support for the SSI263 speech chip // // 15 Mar 2004: // - Switched to MAME's AY8910 emulation (includes envelope support) // // v1.12.03 (11 Jan 2004) // - For free-running 6522 timer1 IRQ, reload with current ACCESS_TIMER1 value. // (Fixes Ultima 4/5 playback speed problem.) // // v1.12.01 (24 Nov 2002) // - Shaped the tone waveform more logarithmically // - Added support for MB ena/dis switch on Config dialog // - Added log file support // // v1.12.00 (17 Nov 2002) // - Initial version (no AY8910 envelope support) // // Notes on Votrax chip (on original Mockingboards): // From Crimewave (Penguin Software): // . Init: // . DDRB = 0xFF // . PCR = 0xB0 // . IER = 0x90 // . ORB = 0x03 (PAUSE0) or 0x3F (STOP) // . IRQ: // . ORB = Phoneme value // . IRQ last phoneme complete: // . IER = 0x10 // . ORB = 0x3F (STOP) // #include "common.h" #ifdef APPLE2IX # if defined(__linux) && !defined(ANDROID) # include # endif #if defined(FAILED) #undef FAILED #endif static inline bool FAILED(int x) { return x != 0; } #define THREAD_PRIORITY_NORMAL 0 #define THREAD_PRIORITY_TIME_CRITICAL 15 #define STILL_ACTIVE 259 extern bool GetExitCodeThread(pthread_t hThread, unsigned long *lpExitCode); extern pthread_t CreateThread(void* unused_lpThreadAttributes, int unused_dwStackSize, void *(*lpStartAddress)(void *unused), void *lpParameter, unsigned long unused_dwCreationFlags, unsigned long *lpThreadId); extern bool SetThreadPriority(pthread_t hThread, int nPriority); #else #include "StdAfx.h" #endif #define LOG_SSI263 0 #include #include "audio/AY8910.h" #include "audio/SSI263Phonemes.h" #define SY6522_DEVICE_A 0 #define SY6522_DEVICE_B 1 #define SLOT4 4 #define SLOT5 5 #define NUM_MB 2 #define NUM_DEVS_PER_MB 2 #define NUM_AY8910 (NUM_MB*NUM_DEVS_PER_MB) #define NUM_SY6522 NUM_AY8910 #define NUM_VOICES_PER_AY8910 3 #define NUM_VOICES (NUM_AY8910*NUM_VOICES_PER_AY8910) // Chip offsets from card base. #define SY6522A_Offset 0x00 #define SY6522B_Offset 0x80 #define SSI263_Offset 0x40 #define Phasor_SY6522A_CS 4 #define Phasor_SY6522B_CS 7 #define Phasor_SY6522A_Offset (1<nAY8910Number & 1) != SY6522_DEVICE_A) return; if((pMB->sy6522.IER & IxR_TIMER1) == 0x00) return; uint16_t nPeriod = pMB->sy6522.TIMER1_LATCH.w; // if(nPeriod <= 0xff) // Timer1L value has been written (but TIMER1H hasn't) // return; pMB->nTimerStatus = 1; // 6522 CLK runs at same speed as 6502 CLK g_n6522TimerPeriod = nPeriod; g_bMBTimerIrqActive = true; g_nMBTimerDevice = pMB->nAY8910Number; } //----------------------------------------------------------------------------- static void StopTimer(SY6522_AY8910* pMB) { pMB->nTimerStatus = 0; g_bMBTimerIrqActive = false; g_nMBTimerDevice = TIMERDEVICE_INVALID; } //----------------------------------------------------------------------------- static void ResetSY6522(SY6522_AY8910* pMB) { memset(&pMB->sy6522,0,sizeof(SY6522)); if(pMB->nTimerStatus) StopTimer(pMB); pMB->nAYCurrentRegister = 0; } //----------------------------------------------------------------------------- static void AY8910_Write(uint8_t nDevice, uint8_t nReg, uint8_t nValue, uint8_t nAYDevice) { g_bMB_RegAccessedFlag = true; SY6522_AY8910* pMB = &g_MB[nDevice]; if((nValue & 4) == 0) { // RESET: Reset AY8910 only AY8910_reset(nDevice+2*nAYDevice); } else { // Determine the AY8910 inputs int nBDIR = (nValue & 2) ? 1 : 0; const int nBC2 = 1; // Hardwired to +5V int nBC1 = nValue & 1; int nAYFunc = (nBDIR<<2) | (nBC2<<1) | nBC1; enum {AY_NOP0, AY_NOP1, AY_INACTIVE, AY_READ, AY_NOP4, AY_NOP5, AY_WRITE, AY_LATCH}; switch(nAYFunc) { case AY_INACTIVE: // 4: INACTIVE break; case AY_READ: // 5: READ FROM PSG (need to set DDRA to input) break; case AY_WRITE: // 6: WRITE TO PSG _AYWriteReg(nDevice+2*nAYDevice, pMB->nAYCurrentRegister, pMB->sy6522.ORA); break; case AY_LATCH: // 7: LATCH ADDRESS // http://www.worldofspectrum.org/forums/showthread.php?t=23327 // Selecting an unused register number above 0x0f puts the AY into a state where // any values written to the data/address bus are ignored, but can be read back // within a few tens of thousands of cycles before they decay to zero. if(pMB->sy6522.ORA <= 0x0F) pMB->nAYCurrentRegister = pMB->sy6522.ORA & 0x0F; // else Pro-Mockingboard (clone from HK) break; } } } static void UpdateIFR(SY6522_AY8910* pMB) { pMB->sy6522.IFR &= 0x7F; if(pMB->sy6522.IFR & pMB->sy6522.IER & 0x7F) pMB->sy6522.IFR |= 0x80; // Now update the IRQ signal from all 6522s // . OR-sum of all active TIMER1, TIMER2 & SPEECH sources (from all 6522s) unsigned int bIRQ = 0; for(unsigned int i=0; isy6522.DDRB; pMB->sy6522.ORB = nValue; if( (pMB->sy6522.DDRB == 0xFF) && (pMB->sy6522.PCR == 0xB0) ) { // Votrax speech data Votrax_Write(nDevice, nValue); break; } if(g_bPhasorEnable) { int nAY_CS = (g_nPhasorMode & 1) ? (~(nValue >> 3) & 3) : 1; if(nAY_CS & 1) AY8910_Write(nDevice, nReg, nValue, 0); if(nAY_CS & 2) AY8910_Write(nDevice, nReg, nValue, 1); } else { AY8910_Write(nDevice, nReg, nValue, 0); } break; } case 0x01: // ORA pMB->sy6522.ORA = nValue & pMB->sy6522.DDRA; break; case 0x02: // DDRB pMB->sy6522.DDRB = nValue; break; case 0x03: // DDRA pMB->sy6522.DDRA = nValue; break; case 0x04: // TIMER1L_COUNTER case 0x06: // TIMER1L_LATCH pMB->sy6522.TIMER1_LATCH.l = nValue; break; case 0x05: // TIMER1H_COUNTER /* Initiates timer1 & clears time-out of timer1 */ // Clear Timer Interrupt Flag. pMB->sy6522.IFR &= ~IxR_TIMER1; UpdateIFR(pMB); pMB->sy6522.TIMER1_LATCH.h = nValue; pMB->sy6522.TIMER1_COUNTER.w = pMB->sy6522.TIMER1_LATCH.w; StartTimer(pMB); break; case 0x07: // TIMER1H_LATCH // Clear Timer1 Interrupt Flag. pMB->sy6522.TIMER1_LATCH.h = nValue; pMB->sy6522.IFR &= ~IxR_TIMER1; UpdateIFR(pMB); break; case 0x08: // TIMER2L pMB->sy6522.TIMER2_LATCH.l = nValue; break; case 0x09: // TIMER2H // Clear Timer2 Interrupt Flag. pMB->sy6522.IFR &= ~IxR_TIMER2; UpdateIFR(pMB); pMB->sy6522.TIMER2_LATCH.h = nValue; pMB->sy6522.TIMER2_COUNTER.w = pMB->sy6522.TIMER2_LATCH.w; break; case 0x0a: // SERIAL_SHIFT break; case 0x0b: // ACR pMB->sy6522.ACR = nValue; break; case 0x0c: // PCR - Used for Speech chip only pMB->sy6522.PCR = nValue; break; case 0x0d: // IFR // - Clear those bits which are set in the lower 7 bits. // - Can't clear bit 7 directly. nValue |= 0x80; // Set high bit nValue ^= 0x7F; // Make mask pMB->sy6522.IFR &= nValue; UpdateIFR(pMB); break; case 0x0e: // IER if(!(nValue & 0x80)) { // Clear those bits which are set in the lower 7 bits. nValue ^= 0x7F; pMB->sy6522.IER &= nValue; UpdateIFR(pMB); // Check if timer has been disabled. if(pMB->sy6522.IER & IxR_TIMER1) break; if(pMB->nTimerStatus == 0) break; // Stop timer StopTimer(pMB); } else { // Set those bits which are set in the lower 7 bits. nValue &= 0x7F; pMB->sy6522.IER |= nValue; UpdateIFR(pMB); StartTimer(pMB); } break; case 0x0f: // ORA_NO_HS break; } } //----------------------------------------------------------------------------- static uint8_t SY6522_Read(uint8_t nDevice, uint8_t nReg) { // g_bMB_RegAccessedFlag = true; g_bMB_Active = true; SY6522_AY8910* pMB = &g_MB[nDevice]; uint8_t nValue = 0x00; switch (nReg) { case 0x00: // ORB nValue = pMB->sy6522.ORB; break; case 0x01: // ORA nValue = pMB->sy6522.ORA; break; case 0x02: // DDRB nValue = pMB->sy6522.DDRB; break; case 0x03: // DDRA nValue = pMB->sy6522.DDRA; break; case 0x04: // TIMER1L_COUNTER nValue = pMB->sy6522.TIMER1_COUNTER.l; pMB->sy6522.IFR &= ~IxR_TIMER1; // Also clears Timer1 Interrupt Flag UpdateIFR(pMB); break; case 0x05: // TIMER1H_COUNTER nValue = pMB->sy6522.TIMER1_COUNTER.h; break; case 0x06: // TIMER1L_LATCH nValue = pMB->sy6522.TIMER1_LATCH.l; break; case 0x07: // TIMER1H_LATCH nValue = pMB->sy6522.TIMER1_LATCH.h; break; case 0x08: // TIMER2L nValue = pMB->sy6522.TIMER2_COUNTER.l; pMB->sy6522.IFR &= ~IxR_TIMER2; // Also clears Timer2 Interrupt Flag UpdateIFR(pMB); break; case 0x09: // TIMER2H nValue = pMB->sy6522.TIMER2_COUNTER.h; break; case 0x0a: // SERIAL_SHIFT break; case 0x0b: // ACR nValue = pMB->sy6522.ACR; break; case 0x0c: // PCR nValue = pMB->sy6522.PCR; break; case 0x0d: // IFR nValue = pMB->sy6522.IFR; break; case 0x0e: // IER nValue = 0x80; // Datasheet says this is 0x80|IER break; case 0x0f: // ORA_NO_HS nValue = pMB->sy6522.ORA; break; } return nValue; } //--------------------------------------------------------------------------- #ifdef APPLE2IX static void SSI263_Play(unsigned int nPhoneme); #else void SSI263_Play(unsigned int nPhoneme); #endif #if 0 typedef struct { uint8_t DurationPhonome; uint8_t Inflection; // I10..I3 uint8_t RateInflection; uint8_t CtrlArtAmp; uint8_t FilterFreq; // uint8_t CurrentMode; } SSI263A; #endif //static SSI263A nSpeechChip; // Duration/Phonome const uint8_t DURATION_MODE_MASK = 0xC0; const uint8_t PHONEME_MASK = 0x3F; const uint8_t MODE_PHONEME_TRANSITIONED_INFLECTION = 0xC0; // IRQ active const uint8_t MODE_PHONEME_IMMEDIATE_INFLECTION = 0x80; // IRQ active const uint8_t MODE_FRAME_IMMEDIATE_INFLECTION = 0x40; // IRQ active const uint8_t MODE_IRQ_DISABLED = 0x00; // Rate/Inflection const uint8_t RATE_MASK = 0xF0; const uint8_t INFLECTION_MASK_H = 0x08; // I11 const uint8_t INFLECTION_MASK_L = 0x07; // I2..I0 // Ctrl/Art/Amp const uint8_t CONTROL_MASK = 0x80; const uint8_t ARTICULATION_MASK = 0x70; const uint8_t AMPLITUDE_MASK = 0x0F; static uint8_t SSI263_Read(uint8_t nDevice, uint8_t nReg) { SY6522_AY8910* pMB = &g_MB[nDevice]; // Regardless of register, just return inverted A/!R in bit7 // . A/!R is low for IRQ return pMB->SpeechChip.CurrentMode << 7; } static void SSI263_Write(uint8_t nDevice, uint8_t nReg, uint8_t nValue) { SY6522_AY8910* pMB = &g_MB[nDevice]; switch(nReg) { case SSI_DURPHON: #if LOG_SSI263 LOG("DUR = 0x%02X, PHON = 0x%02X\n\n", nValue>>6, nValue&PHONEME_MASK); #endif // Datasheet is not clear, but a write to DURPHON must clear the IRQ if(g_bPhasorEnable) { #ifdef APPLE2IX cpu65_uninterrupt(IS_SPEECH); #else CpuIrqDeassert(IS_SPEECH); #endif } else { pMB->sy6522.IFR &= ~IxR_PERIPHERAL; UpdateIFR(pMB); } pMB->SpeechChip.CurrentMode &= ~1; // Clear SSI263's D7 pin pMB->SpeechChip.DurationPhonome = nValue; g_nSSI263Device = nDevice; // Phoneme output not dependent on CONTROL bit if(g_bPhasorEnable) { if(nValue || (g_nCurrentActivePhoneme<0)) SSI263_Play(nValue & PHONEME_MASK); } else { SSI263_Play(nValue & PHONEME_MASK); } break; case SSI_INFLECT: #if LOG_SSI263 LOG("INF = 0x%02X\n", nValue); #endif pMB->SpeechChip.Inflection = nValue; break; case SSI_RATEINF: #if LOG_SSI263 LOG("RATE = 0x%02X, INF = 0x%02X\n", nValue>>4, nValue&0x0F); #endif pMB->SpeechChip.RateInflection = nValue; break; case SSI_CTTRAMP: #if LOG_SSI263 LOG("CTRL = %d, ART = 0x%02X, AMP=0x%02X\n", nValue>>7, (nValue&ARTICULATION_MASK)>>4, nValue&LITUDE_MASK); #endif if((pMB->SpeechChip.CtrlArtAmp & CONTROL_MASK) && !(nValue & CONTROL_MASK)) // H->L pMB->SpeechChip.CurrentMode = pMB->SpeechChip.DurationPhonome & DURATION_MODE_MASK; pMB->SpeechChip.CtrlArtAmp = nValue; break; case SSI_FILFREQ: #if LOG_SSI263 LOG("FFREQ = 0x%02X\n", nValue); #endif pMB->SpeechChip.FilterFreq = nValue; break; default: break; } } //------------------------------------- static uint8_t Votrax2SSI263[MAX_VOICES] = { 0x02, // 00: EH3 jackEt -> E1 bEnt 0x0A, // 01: EH2 Enlist -> EH nEst 0x0B, // 02: EH1 hEAvy -> EH1 bElt 0x00, // 03: PA0 no sound -> PA 0x28, // 04: DT buTTer -> T Tart 0x08, // 05: A2 mAde -> A mAde 0x08, // 06: A1 mAde -> A mAde 0x2F, // 07: ZH aZure -> Z Zero 0x0E, // 08: AH2 hOnest -> AH gOt 0x07, // 09: I3 inhibIt -> I sIx 0x07, // 0A: I2 Inhibit -> I sIx 0x07, // 0B: I1 inhIbit -> I sIx 0x37, // 0C: M Mat -> More 0x38, // 0D: N suN -> N NiNe 0x24, // 0E: B Bag -> B Bag 0x33, // 0F: V Van -> V Very // 0x32, // 10: CH* CHip -> SCH SHip (!) 0x32, // 11: SH SHop -> SCH SHip 0x2F, // 12: Z Zoo -> Z Zero 0x10, // 13: AW1 lAWful -> AW Office 0x39, // 14: NG thiNG -> NG raNG 0x0F, // 15: AH1 fAther -> AH1 fAther 0x13, // 16: OO1 lOOking -> OO lOOk 0x13, // 17: OO bOOK -> OO lOOk 0x20, // 18: L Land -> L Lift 0x29, // 19: K triCK -> Kit 0x25, // 1A: J* juDGe -> D paiD (!) 0x2C, // 1B: H Hello -> HF Heart 0x26, // 1C: G Get -> KV taG 0x34, // 1D: F Fast -> F Four 0x25, // 1E: D paiD -> D paiD 0x30, // 1F: S paSS -> S Same // 0x08, // 20: A dAY -> A mAde 0x09, // 21: AY dAY -> AI cAre 0x03, // 22: Y1 Yard -> YI Year 0x1B, // 23: UH3 missIOn -> UH3 nUt 0x0E, // 24: AH mOp -> AH gOt 0x27, // 25: P Past -> P Pen 0x11, // 26: O cOld -> O stOre 0x07, // 27: I pIn -> I sIx 0x16, // 28: U mOve -> U tUne 0x05, // 29: Y anY -> AY plEAse 0x28, // 2A: T Tap -> T Tart 0x1D, // 2B: R Red -> R Roof 0x01, // 2C: E mEEt -> E mEEt 0x23, // 2D: W Win -> W Water 0x0C, // 2E: AE dAd -> AE dAd 0x0D, // 2F: AE1 After -> AE1 After // 0x10, // 30: AW2 sAlty -> AW Office 0x1A, // 31: UH2 About -> UH2 whAt 0x19, // 32: UH1 Uncle -> UH1 lOve 0x18, // 33: UH cUp -> UH wOnder 0x11, // 34: O2 fOr -> O stOre 0x11, // 35: O1 abOArd -> O stOre 0x14, // 36: IU yOU -> IU yOU 0x14, // 37: U1 yOU -> IU yOU 0x35, // 38: THV THe -> THV THere 0x36, // 39: TH THin -> TH wiTH 0x1C, // 3A: ER bIrd -> ER bIrd 0x0A, // 3B: EH gEt -> EH nEst 0x01, // 3C: E1 bE -> E mEEt 0x10, // 3D: AW cAll -> AW Office 0x00, // 3E: PA1 no sound -> PA 0x00, // 3F: STOP no sound -> PA }; static void Votrax_Write(uint8_t nDevice, uint8_t nValue) { g_bVotraxPhoneme = true; // !A/R: Acknowledge receipt of phoneme data (signal goes from high to low) SY6522_AY8910* pMB = &g_MB[nDevice]; pMB->sy6522.IFR &= ~IxR_VOTRAX; UpdateIFR(pMB); g_nSSI263Device = nDevice; SSI263_Play(Votrax2SSI263[nValue & PHONEME_MASK]); } //=========================================================================== static void MB_Update() { #ifdef APPLE2IX if (!audio_isAvailable) { return; } static int nNumSamplesError = 0; if (!MockingboardVoice) { nNumSamplesError = 0; return; } if (!MockingboardVoice->bActive || !g_bMB_Active) { nNumSamplesError = 0; return; } #else char szDbg[200]; if (!MockingboardVoice->bActive) return; #endif if (is_fullspeed) { // Keep AY reg writes relative to the current 'frame' // - Required for Ultima3: // . Tune ends // . is_fullspeed:=true (disk-spinning) for ~50 frames // . U3 sets AY_ENABLE:=0xFF (as a side-effect, this sets is_fullspeed:=false) // o Without this, the write to AY_ENABLE gets ignored (since AY8910's /g_uLastCumulativeCycles/ was last set 50 frame ago) AY8910UpdateSetCycles(); // TODO: // If any AY regs have changed then push them out to the AY chip return; } // if (!g_bMB_RegAccessedFlag) { if(!g_nMB_InActiveCycleCount) { g_nMB_InActiveCycleCount = cycles_count_total; } #ifdef APPLE2IX else if(cycles_count_total - g_nMB_InActiveCycleCount > (uint64_t)cycles_persec_target/10) #else else if(cycles_count_total - g_nMB_InActiveCycleCount > (uint64_t)cycles_persec_target/10) #endif { // After 0.1 sec of Apple time, assume MB is not active g_bMB_Active = false; } } else { g_nMB_InActiveCycleCount = 0; g_bMB_RegAccessedFlag = false; g_bMB_Active = true; } // #ifndef APPLE2IX static unsigned long dwByteOffset = (unsigned long)-1; static int nNumSamplesError = 0; #endif const double n6522TimerPeriod = MB_GetFramePeriod(); const double nIrqFreq = cycles_persec_target / n6522TimerPeriod + 0.5; // Round-up const int nNumSamplesPerPeriod = (int) ((double)SAMPLE_RATE / nIrqFreq); // Eg. For 60Hz this is 735 int nNumSamples = nNumSamplesPerPeriod + nNumSamplesError; // Apply correction if(nNumSamples <= 0) nNumSamples = 0; if(nNumSamples > 2*nNumSamplesPerPeriod) nNumSamples = 2*nNumSamplesPerPeriod; if(nNumSamples) for(int nChip=0; nChipGetCurrentPosition(MockingboardVoice, &dwCurrentPlayCursor); #else int hr = MockingboardVoice->GetCurrentPosition(&dwCurrentPlayCursor, &dwCurrentWriteCursor); #endif if(FAILED(hr)) return; #if 0 if(dwByteOffset == (unsigned long)-1) { // First time in this func dwByteOffset = dwCurrentWriteCursor; } else { // Check that our offset isn't between Play & Write positions if(dwCurrentWriteCursor > dwCurrentPlayCursor) { // |-----PxxxxxW-----| if((dwByteOffset > dwCurrentPlayCursor) && (dwByteOffset < dwCurrentWriteCursor)) { #ifndef APPLE2IX double fTicksSecs = (double)GetTickCount() / 1000.0; sprintf(szDbg, "%010.3f: [MBUpdt] PC=%08X, WC=%08X, Diff=%08X, Off=%08X, NS=%08X xxx\n", fTicksSecs, dwCurrentPlayCursor, dwCurrentWriteCursor, dwCurrentWriteCursor-dwCurrentPlayCursor, dwByteOffset, nNumSamples); OutputDebugString(szDbg); if (g_fh) fprintf(g_fh, szDbg); #endif dwByteOffset = dwCurrentWriteCursor; } } else { // |xxW----------Pxxx| if((dwByteOffset > dwCurrentPlayCursor) || (dwByteOffset < dwCurrentWriteCursor)) { #ifndef APPLE2IX double fTicksSecs = (double)GetTickCount() / 1000.0; sprintf(szDbg, "%010.3f: [MBUpdt] PC=%08X, WC=%08X, Diff=%08X, Off=%08X, NS=%08X XXX\n", fTicksSecs, dwCurrentPlayCursor, dwCurrentWriteCursor, dwCurrentWriteCursor-dwCurrentPlayCursor, dwByteOffset, nNumSamples); OutputDebugString(szDbg); if (g_fh) fprintf(g_fh, szDbg); #endif dwByteOffset = dwCurrentWriteCursor; } } } int nBytesRemaining = dwByteOffset - dwCurrentPlayCursor; #else int nBytesRemaining = (int)dwCurrentPlayCursor; //LOG("Mockingboard : sound buffer position : %d", nBytesRemaining); #endif if(nBytesRemaining < 0) nBytesRemaining += g_dwDSBufferSize; // Calc correction factor so that play-buffer doesn't under/overflow if((unsigned int)nBytesRemaining < g_dwDSBufferSize / 4) nNumSamplesError += SOUNDCORE_ERROR_INC; // < 0.25 of buffer remaining else if((unsigned int)nBytesRemaining > g_dwDSBufferSize / 2) nNumSamplesError -= SOUNDCORE_ERROR_INC; // > 0.50 of buffer remaining else nNumSamplesError = 0; // Acceptable amount of data in buffer #ifdef APPLE2IX if(nNumSamplesError < -SOUNDCORE_ERROR_MAX) nNumSamplesError = -SOUNDCORE_ERROR_MAX; if(nNumSamplesError > SOUNDCORE_ERROR_MAX) nNumSamplesError = SOUNDCORE_ERROR_MAX; static time_t dbg_print = 0; time_t now = time(NULL); if (dbg_print != now) { dbg_print = now; LOG("cycles_speaker_feedback:%d nNumSamplesError:%d n6522TimerPeriod:%f nIrqFreq:%f nNumSamplesPerPeriod:%d nNumSamples:%d nBytesRemaining:%d ", cycles_speaker_feedback, nNumSamplesError, n6522TimerPeriod, nIrqFreq, nNumSamplesPerPeriod, nNumSamples, nBytesRemaining); } #endif const double fAttenuation = g_bPhasorEnable ? 2.0/3.0 : 1.0; for(int i=0; i nWaveDataMax) nDataL = nWaveDataMax; if(nDataR < nWaveDataMin) nDataR = nWaveDataMin; else if(nDataR > nWaveDataMax) nDataR = nWaveDataMax; #ifdef APPLE2IX g_nMixBuffer[i*g_nMB_NumChannels+0] = (short)nDataL * samplesScale; g_nMixBuffer[i*g_nMB_NumChannels+1] = (short)nDataR * samplesScale; #else g_nMixBuffer[i*g_nMB_NumChannels+0] = (short)nDataL; // L g_nMixBuffer[i*g_nMB_NumChannels+1] = (short)nDataR; // R #endif } // const unsigned long originalRequestedBufSize = (unsigned long)nNumSamples*sizeof(short)*g_nMB_NumChannels; unsigned long requestedBufSize = originalRequestedBufSize; unsigned long bufIdx = 0; unsigned long counter = 0; if (!nNumSamples) { return; } // make at least 2 attempts to submit data (could be at a ringBuffer boundary) do { if (MockingboardVoice->Lock(MockingboardVoice, requestedBufSize, &pDSLockedBuffer0, &dwDSLockedBufferSize0)) { return; } { unsigned long modTwo = (dwDSLockedBufferSize0 % 2); assert(modTwo == 0); } memcpy(pDSLockedBuffer0, &g_nMixBuffer[bufIdx/sizeof(short)], dwDSLockedBufferSize0); MockingboardVoice->Unlock(MockingboardVoice, dwDSLockedBufferSize0); bufIdx += dwDSLockedBufferSize0; requestedBufSize -= dwDSLockedBufferSize0; assert(requestedBufSize <= originalRequestedBufSize); ++counter; } while (bufIdx < originalRequestedBufSize && counter < 2); assert(bufIdx == originalRequestedBufSize); #ifndef APPLE2IX dwByteOffset = (dwByteOffset + (unsigned long)nNumSamples*sizeof(short)*g_nMB_NumChannels) % g_dwDSBufferSize; #endif #ifdef RIFF_MB RiffPutSamples(&g_nMixBuffer[0], nNumSamples); #endif } //----------------------------------------------------------------------------- #ifdef APPLE2IX static void* SSI263Thread(void *lpParameter) #else static unsigned long SSI263Thread(void *lpParameter) #endif { const unsigned long nsecWait = NANOSECONDS_PER_SECOND / audio_backend->systemSettings.sampleRateHz; const struct timespec wait = { .tv_sec=0, .tv_nsec=nsecWait }; while(1) { #ifdef APPLE2IX int err =0; pthread_mutex_lock(&mockingboard_mutex); err = pthread_cond_timedwait(&mockingboard_cond, &mockingboard_mutex, &wait); if (err && (err != ETIMEDOUT)) { ERRLOG("OOPS pthread_cond_timedwait"); } pthread_mutex_unlock(&mockingboard_mutex); if (quit_event) { break; } // poll to see if any samples finished ... bool sample_finished = false; for (unsigned int i=0; ibActive) { unsigned long status = 0; SSI263Voice[i]->GetStatus(SSI263Voice[i], &status); if (status & AUDIO_STATUS_NOTPLAYING) { sample_finished = true; break; } } } if (!sample_finished) { continue; } #else unsigned long dwWaitResult = WaitForMultipleObjects( g_nNumEvents, // number of handles in array g_hSSI263Event, // array of event handles false, // wait until any one is signaled 0); if((dwWaitResult < 0x0L) || (dwWaitResult > 0x0L+g_nNumEvents-1)) continue; dwWaitResult -= 0x0L; // Determine event # that signaled if(dwWaitResult == (g_nNumEvents-1)) // Termination event break; #endif // Phoneme completed playing if (g_bStopPhoneme) { g_bStopPhoneme = false; continue; } #if LOG_SSI263 //if(g_fh) fprintf(g_fh, "IRQ: Phoneme complete (0x%02X)\n\n", g_nCurrentActivePhoneme); #endif SSI263Voice[g_nCurrentActivePhoneme]->bActive = false; g_nCurrentActivePhoneme = -1; // Phoneme complete, so generate IRQ if necessary SY6522_AY8910* pMB = &g_MB[g_nSSI263Device]; if(g_bPhasorEnable) { if((pMB->SpeechChip.CurrentMode != MODE_IRQ_DISABLED)) { pMB->SpeechChip.CurrentMode |= 1; // Set SSI263's D7 pin // Phasor's SSI263.IRQ line appears to be wired directly to IRQ (Bypassing the 6522) #ifdef APPLE2IX cpu65_interrupt(IS_SPEECH); #else CpuIrqAssert(IS_SPEECH); #endif } } else { if((pMB->SpeechChip.CurrentMode != MODE_IRQ_DISABLED) && (pMB->sy6522.PCR == 0x0C)) { pMB->sy6522.IFR |= IxR_PERIPHERAL; UpdateIFR(pMB); pMB->SpeechChip.CurrentMode |= 1; // Set SSI263's D7 pin } } // if(g_bVotraxPhoneme && (pMB->sy6522.PCR == 0xB0)) { // !A/R: Time-out of old phoneme (signal goes from low to high) pMB->sy6522.IFR |= IxR_VOTRAX; UpdateIFR(pMB); g_bVotraxPhoneme = false; } } return 0; } //----------------------------------------------------------------------------- static void SSI263_Play(unsigned int nPhoneme) { return; // SSI263 voices are currently deadc0de #if 0 #if 1 int hr; if(g_nCurrentActivePhoneme >= 0) { // A write to DURPHON before previous phoneme has completed g_bStopPhoneme = true; #if !defined(APPLE2IX) hr = SSI263Voice[g_nCurrentActivePhoneme]->Stop(); #endif } g_nCurrentActivePhoneme = nPhoneme; #ifdef APPLE2IX hr = SSI263Voice[g_nCurrentActivePhoneme]->Replay(SSI263Voice[g_nCurrentActivePhoneme]); #else hr = SSI263Voice[g_nCurrentActivePhoneme]->SetCurrentPosition(0); if(FAILED(hr)) return; hr = SSI263Voice[g_nCurrentActivePhoneme]->Play(0,0,0); // Not looping #endif if(FAILED(hr)) return; SSI263Voice[g_nCurrentActivePhoneme]->bActive = true; #else int hr; bool bPause; if(nPhoneme == 1) nPhoneme = 2; // Missing this sample, so map to phoneme-2 if(nPhoneme == 0) { bPause = true; } else { // nPhoneme--; nPhoneme-=2; // Missing phoneme-1 bPause = false; } unsigned long dwDSLockedBufferSize = 0; // Size of the locked DirectSound buffer int16_t* pDSLockedBuffer; hr = SSI263Voice->Stop(); if(DSGetLock(SSI263Voice, 0, 0, &pDSLockedBuffer, &dwDSLockedBufferSize, NULL, 0)) return; unsigned int nPhonemeShortLength = g_nPhonemeInfo[nPhoneme].nLength; unsigned int nPhonemeByteLength = g_nPhonemeInfo[nPhoneme].nLength * sizeof(int16_t); if(bPause) { // 'pause' length is length of 1st phoneme (arbitrary choice, since don't know real length) memset(pDSLockedBuffer, 0, g_dwMaxPhonemeLen); } else { memcpy(pDSLockedBuffer, &g_nPhonemeData[g_nPhonemeInfo[nPhoneme].nOffset], nPhonemeByteLength); memset(&pDSLockedBuffer[nPhonemeShortLength], 0, g_dwMaxPhonemeLen-nPhonemeByteLength); } #if 0 DSBPOSITIONNOTIFY PositionNotify; PositionNotify.dwOffset = nPhonemeByteLength - 1; // End of phoneme PositionNotify.hEventNotify = g_hSSI263Event[0]; hr = SSI263Voice.lpDSNotify->SetNotificationPositions(1, &PositionNotify); if(FAILED(hr)) { DirectSound_ErrorText(hr); return; } #endif #ifdef APPLE2IX hr = SSI263Voice->Unlock(SSI263Voice, dwDSLockedBufferSize); #else hr = SSI263Voice->Unlock((void*)pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0); #endif if(FAILED(hr)) return; hr = SSI263Voice->Play(0,0,0); // Not looping if(FAILED(hr)) return; SSI263Voice.bActive = true; #endif #endif } //----------------------------------------------------------------------------- static bool MB_DSInit() { #ifdef APPLE2IX LOG("MB_DSInit : %d\n", g_bMBAvailable); #else LOG("MB_DSInit\n", g_bMBAvailable); #endif #ifdef NO_DIRECT_X return false; #else // NO_DIRECT_X // // Create single Mockingboard voice // unsigned long dwDSLockedBufferSize = 0; // Size of the locked DirectSound buffer int16_t* pDSLockedBuffer; if(!audio_isAvailable) return false; int hr = audio_createSoundBuffer(&MockingboardVoice); LOG("MB_DSInit: DSGetSoundBuffer(), hr=0x%08X\n", (unsigned int)hr); if(FAILED(hr)) { LOG("MB: DSGetSoundBuffer failed (%08X)\n",(unsigned int)hr); return false; } SAMPLE_RATE = audio_backend->systemSettings.sampleRateHz; MB_BUF_SIZE = audio_backend->systemSettings.stereoBufferSizeSamples * audio_backend->systemSettings.bytesPerSample * MB_CHANNELS; g_dwDSBufferSize = MB_BUF_SIZE; g_nMixBuffer = malloc(MB_BUF_SIZE / audio_backend->systemSettings.bytesPerSample); #ifndef APPLE2IX bool bRes = DSZeroVoiceBuffer(&MockingboardVoice, (char*)"MB", g_dwDSBufferSize); LOG("MB_DSInit: DSZeroVoiceBuffer(), res=%d\n", bRes ? 1 : 0); if (!bRes) return false; #endif MockingboardVoice->bActive = true; // Volume might've been setup from value in Registry if(!MockingboardVoice->nVolume) MockingboardVoice->nVolume = DSBVOLUME_MAX; #if !defined(APPLE2IX) hr = MockingboardVoice->SetVolume(MockingboardVoice->nVolume); #endif LOG("MB_DSInit: SetVolume(), hr=0x%08X\n", (unsigned int)hr); //--------------------------------- // // Create SSI263 voice // #if 0 g_dwMaxPhonemeLen = 0; for(int i=0; isystemSettings.bytesPerSample; if (nPhonemeByteLength > audio_backend->systemSettings.monoBufferSizeSamples) { RELEASE_ERRLOG("!!!!!!!!!!!!!!!!!!!!! phoneme length > buffer size !!!!!!!!!!!!!!!!!!!!!"); #warning ^^^^^^^^^^ require vigilence here around this change ... we used to be able to specify the exact buffer size ... } // NB. DSBCAPS_LOCSOFTWARE required for hr = audio_createSoundBuffer(&SSI263Voice[i], 1); LOG("MB_DSInit: (%02d) DSGetSoundBuffer(), hr=0x%08X\n", i, (unsigned int)hr); if(FAILED(hr)) { LOG("SSI263: DSGetSoundBuffer failed (%08X)\n",(unsigned int)hr); return false; } hr = SSI263Voice[i]->Lock(SSI263Voice[i], 0, &pDSLockedBuffer, &dwDSLockedBufferSize); //LOG("MB_DSInit: (%02d) DSGetLock(), res=%d\n", i, hr ? 1 : 0); // WARNING: Lock acquired && doing heavy-weight logging if(FAILED(hr)) { LOG("SSI263: DSGetLock failed (%08X)\n",(unsigned int)hr); return false; } if(bPause) { // 'pause' length is length of 1st phoneme (arbitrary choice, since don't know real length) #ifdef APPLE2IX memset(pDSLockedBuffer, 0x00, dwDSLockedBufferSize); #else memset(pDSLockedBuffer, 0x00, nPhonemeByteLength); #endif } else { #ifdef APPLE2IX memcpy(pDSLockedBuffer, &g_nPhonemeData[g_nPhonemeInfo[nPhoneme].nOffset], dwDSLockedBufferSize); #else memcpy(pDSLockedBuffer, &g_nPhonemeData[g_nPhonemeInfo[nPhoneme].nOffset], nPhonemeByteLength); #endif } #ifdef APPLE2IX // Assume no way to get notification of sound finished, instead we will poll from mockingboard thread ... #else hr = SSI263Voice[i]->QueryInterface(IID_IDirectSoundNotify, (void **)&SSI263Voice[i]->lpDSNotify); //LOG("MB_DSInit: (%02d) QueryInterface(), hr=0x%08X\n", i, hr); // WARNING: Lock acquired && doing heavy-weight logging if(FAILED(hr)) { LOG("SSI263: QueryInterface failed (%08X)\n",hr); return false; } DSBPOSITIONNOTIFY PositionNotify; // PositionNotify.dwOffset = nPhonemeByteLength - 1; // End of buffer PositionNotify.dwOffset = DSBPN_OFFSETSTOP; // End of buffer PositionNotify.hEventNotify = g_hSSI263Event[0]; hr = SSI263Voice[i]->lpDSNotify->SetNotificationPositions(1, &PositionNotify); //LOG("MB_DSInit: (%02d) SetNotificationPositions(), hr=0x%08X\n", i, hr); // WARNING: Lock acquired && doing heavy-weight logging if(FAILED(hr)) { LOG("SSI263: SetNotifyPos failed (%08X)\n",hr); return false; } #endif #ifdef APPLE2IX hr = SSI263Voice[i]->UnlockStaticBuffer(SSI263Voice[i], dwDSLockedBufferSize); #else hr = SSI263Voice[i]->Unlock((void*)pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0); #endif LOG("MB_DSInit: (%02d) Unlock(),hr=0x%08X\n", i, (unsigned int)hr); if(FAILED(hr)) { LOG("SSI263: DSUnlock failed (%08X)\n",(unsigned int)hr); return false; } SSI263Voice[i]->bActive = false; SSI263Voice[i]->nVolume = MockingboardVoice->nVolume; // Use same volume as MB #if !defined(APPLE2IX) hr = SSI263Voice[i]->SetVolume(SSI263Voice[i]->nVolume); #endif LOG("MB_DSInit: (%02d) SetVolume(), hr=0x%08X\n", i, (unsigned int)hr); } // unsigned long dwThreadId; g_hThread = CreateThread(NULL, // lpThreadAttributes 0, // dwStackSize SSI263Thread, NULL, // lpParameter 0, // dwCreationFlags : 0 = Run immediately &dwThreadId); // lpThreadId LOG("MB_DSInit: CreateThread(), g_hThread=0x%08X\n", (uint32_t)g_hThread); bool bRes2 = SetThreadPriority(g_hThread, THREAD_PRIORITY_TIME_CRITICAL); LOG("MB_DSInit: SetThreadPriority(), bRes=%d\n", bRes2 ? 1 : 0); return true; #endif #endif // NO_DIRECT_X } static void MB_DSUninit() { if(g_hThread) { unsigned long dwExitCode; #ifdef APPLE2IX quit_event = true; pthread_cond_signal(&mockingboard_cond); #else SetEvent(g_hSSI263Event[g_nNumEvents-1]); // Signal to thread that it should exit #endif do { if(GetExitCodeThread(g_hThread, &dwExitCode)) { if(dwExitCode == STILL_ACTIVE) usleep(10); else break; } } while(1); #ifdef APPLE2IX g_hThread = 0; pthread_mutex_destroy(&mockingboard_mutex); pthread_cond_destroy(&mockingboard_cond); #else CloseHandle(g_hThread); g_hThread = NULL; #endif } // if(MockingboardVoice && MockingboardVoice->bActive) { #if !defined(APPLE2IX) MockingboardVoice->Stop(); #endif MockingboardVoice->bActive = false; } audio_destroySoundBuffer(&MockingboardVoice); // for(int i=0; ibActive) { #if !defined(APPLE2IX) SSI263Voice[i]->Stop(); #endif SSI263Voice[i]->bActive = false; } audio_destroySoundBuffer(&SSI263Voice[i]); } // FREE(g_nMixBuffer); #ifndef APPLE2IX if(g_hSSI263Event[0]) { CloseHandle(g_hSSI263Event[0]); g_hSSI263Event[0] = NULL; } if(g_hSSI263Event[1]) { CloseHandle(g_hSSI263Event[1]); g_hSSI263Event[1] = NULL; } #endif } //============================================================================= // // ----- ALL GLOBALLY ACCESSIBLE FUNCTIONS ARE BELOW THIS LINE ----- // //============================================================================= void MB_Initialize() { #ifdef APPLE2IX assert(pthread_self() == cpu_thread_id); memset(SSI263Voice, 0x0, sizeof(AudioBuffer_s)*MAX_VOICES); #endif if (g_bDisableDirectSoundMockingboard) { //MockingboardVoice->bMute = true; g_SoundcardType = CT_Empty; } else { memset(&g_MB,0,sizeof(g_MB)); g_bMBAvailable = MB_DSInit(); if (!g_bMBAvailable) { //MockingboardVoice->bMute = true; g_SoundcardType = CT_Empty; return; } int i; for(i=0; i>8)&0xf) - SLOT4; uint8_t nOffset = nAddr&0xff; if(g_bPhasorEnable) { if(nMB != 0) // Slot4 only { return MemReadFloatingBus(); } int CS; if(g_nPhasorMode & 1) CS = ( ( nAddr & 0x80 ) >> 6 ) | ( ( nAddr & 0x10 ) >> 4 ); // 0, 1, 2 or 3 else // Mockingboard Mode CS = ( ( nAddr & 0x80 ) >> 7 ) + 1; // 1 or 2 uint8_t nRes = 0; if(CS & 1) nRes |= SY6522_Read(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_A, nAddr&0xf); if(CS & 2) nRes |= SY6522_Read(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_B, nAddr&0xf); bool bAccessedDevice = (CS & 3) ? true : false; if((nOffset >= SSI263_Offset) && (nOffset <= (SSI263_Offset+0x05))) { nRes |= SSI263_Read(nMB, nAddr&0xf); bAccessedDevice = true; } return bAccessedDevice ? nRes : MemReadFloatingBus(); } if(nOffset <= (SY6522A_Offset+0x0F)) { return SY6522_Read(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_A, nAddr&0xf); } else if((nOffset >= SY6522B_Offset) && (nOffset <= (SY6522B_Offset+0x0F))) { return SY6522_Read(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_B, nAddr&0xf); } else if((nOffset >= SSI263_Offset) && (nOffset <= (SSI263_Offset+0x05))) { return SSI263_Read(nMB, nAddr&0xf); } else { return MemReadFloatingBus(); } } //----------------------------------------------------------------------------- #ifdef APPLE2IX #define nValue b GLUE_C_WRITE(MB_Write) #else static uint8_t MB_Write(uint16_t PC, uint16_t nAddr, uint8_t bWrite, uint8_t nValue, unsigned long nCyclesLeft) #endif { MB_UpdateCycles(); #ifdef _DEBUG if(!IS_APPLE2 && !MemCheckSLOTCXROM()) { assert(0); // Card ROM disabled, so IORead_Cxxx() returns the internal ROM #ifdef APPLE2IX return; #else return 0; #endif } if(g_SoundcardType == CT_Empty) { assert(0); // Card unplugged, so IORead_Cxxx() returns the floating bus #ifdef APPLE2IX return; #else return 0; #endif } #endif uint8_t nMB = ((nAddr>>8)&0xf) - SLOT4; uint8_t nOffset = nAddr&0xff; if(g_bPhasorEnable) { if(nMB != 0) // Slot4 only { #ifdef APPLE2IX return; #else return 0; #endif } int CS; if(g_nPhasorMode & 1) CS = ( ( nAddr & 0x80 ) >> 6 ) | ( ( nAddr & 0x10 ) >> 4 ); // 0, 1, 2 or 3 else // Mockingboard Mode CS = ( ( nAddr & 0x80 ) >> 7 ) + 1; // 1 or 2 if(CS & 1) SY6522_Write(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_A, nAddr&0xf, nValue); if(CS & 2) SY6522_Write(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_B, nAddr&0xf, nValue); if((nOffset >= SSI263_Offset) && (nOffset <= (SSI263_Offset+0x05))) SSI263_Write(nMB*2+1, nAddr&0xf, nValue); // Second 6522 is used for speech chip #ifdef APPLE2IX return; #else return 0; #endif } if(nOffset <= (SY6522A_Offset+0x0F)) SY6522_Write(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_A, nAddr&0xf, nValue); else if((nOffset >= SY6522B_Offset) && (nOffset <= (SY6522B_Offset+0x0F))) SY6522_Write(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_B, nAddr&0xf, nValue); else if((nOffset >= SSI263_Offset) && (nOffset <= (SSI263_Offset+0x05))) SSI263_Write(nMB*2+1, nAddr&0xf, nValue); // Second 6522 is used for speech chip #ifdef APPLE2IX return; #else return 0; #endif } //----------------------------------------------------------------------------- #ifdef APPLE2IX GLUE_C_READ(PhasorIO) #else static uint8_t PhasorIO(uint16_t PC, uint16_t nAddr, uint8_t bWrite, uint8_t nValue, unsigned long nCyclesLeft) #endif { if(!g_bPhasorEnable) { return MemReadFloatingBus(); } if(g_nPhasorMode < 2) g_nPhasorMode = nAddr & 1; double fCLK = (nAddr & 4) ? CLK_6502*2 : CLK_6502; AY8910_InitClock((int)fCLK, SAMPLE_RATE); return MemReadFloatingBus(); } //----------------------------------------------------------------------------- #ifdef APPLE2IX // HACK NOTE TODO FIXME : hardcoded for now (until we have dynamic emulation for other cards in these slots) ... //SS_CARDTYPE g_Slot4 = CT_Phasor; //SS_CARDTYPE g_Slot5 = CT_Empty; SS_CARDTYPE g_Slot4 = CT_MockingboardC; SS_CARDTYPE g_Slot5 = CT_MockingboardC; #define IO_Null NULL void mb_io_initialize(unsigned int slot4, unsigned int slot5) { MB_InitializeIO(NULL, slot4, slot5); } //typedef uint8_t (*iofunction)(uint16_t nPC, uint16_t nAddr, uint8_t nWriteFlag, uint8_t nWriteValue, unsigned long nCyclesLeft); typedef void (*iofunction)(); static void RegisterIoHandler(unsigned int uSlot, iofunction IOReadC0, iofunction IOWriteC0, iofunction IOReadCx, iofunction IOWriteCx, void *unused_lpSlotParameter, uint8_t* unused_pExpansionRom) { // card softswitches unsigned int base_addr = 0xC080 + (uSlot<<4); // uSlot == 4 => 0xC0C0 , uSlot == 5 => 0xC0D0 if (IOReadC0) { assert(IOWriteC0); for (unsigned int i = 0; i < 16; i++) { cpu65_vmem_r[base_addr+i] = IOReadC0; cpu65_vmem_w[base_addr+i] = IOWriteC0; } } // card page base_addr = 0xC000 + (uSlot<<8); // uSlot == 4 => 0xC400 , uSlot == 5 => 0xC500 for (unsigned int i = 0; i < 0x100; i++) { //cpu65_vmem_r[base_addr+i] = IOReadCx; -- CANNOT DO THIS HERE -- DEPENDS ON cxrom softswitch cpu65_vmem_w[base_addr+i] = IOWriteCx; } } #endif void MB_InitializeIO(char *unused_pCxRomPeripheral, unsigned int uSlot4, unsigned int uSlot5) { // Mockingboard: Slot 4 & 5 // Phasor : Slot 4 // : Slot 4 & 5 if (g_Slot4 != CT_MockingboardC && g_Slot4 != CT_Phasor) { MB_SetSoundcardType(CT_Empty); return; } if (g_Slot4 == CT_MockingboardC) RegisterIoHandler(uSlot4, IO_Null, IO_Null, MB_Read, MB_Write, NULL, NULL); else // Phasor RegisterIoHandler(uSlot4, PhasorIO, PhasorIO, MB_Read, MB_Write, NULL, NULL); if (g_Slot5 == CT_MockingboardC) RegisterIoHandler(uSlot5, IO_Null, IO_Null, MB_Read, MB_Write, NULL, NULL); MB_SetSoundcardType(g_Slot4); } //----------------------------------------------------------------------------- void MB_Mute() { if(g_SoundcardType == CT_Empty) return; if(MockingboardVoice->bActive && !MockingboardVoice->bMute) { #if !defined(APPLE2IX) MockingboardVoice->SetVolume(DSBVOLUME_MIN); #endif MockingboardVoice->bMute = true; } #if !defined(APPLE2IX) if(g_nCurrentActivePhoneme >= 0) SSI263Voice[g_nCurrentActivePhoneme]->SetVolume(DSBVOLUME_MIN); #endif } //----------------------------------------------------------------------------- void MB_Demute() { if(g_SoundcardType == CT_Empty) return; if(MockingboardVoice->bActive && MockingboardVoice->bMute) { #if !defined(APPLE2IX) MockingboardVoice->SetVolume(MockingboardVoice->nVolume); #endif MockingboardVoice->bMute = false; } #if !defined(APPLE2IX) if(g_nCurrentActivePhoneme >= 0) SSI263Voice[g_nCurrentActivePhoneme]->SetVolume(SSI263Voice[g_nCurrentActivePhoneme]->nVolume); #endif } //----------------------------------------------------------------------------- // Called by CpuExecute() before doing CPU emulation void MB_StartOfCpuExecute() { g_uLastCumulativeCycles = cycles_count_total; } // Called by ContinueExecution() at the end of every video frame void MB_EndOfVideoFrame() { SCOPE_TRACE_AUDIO("MB_EndOfVideoFrame"); if(g_SoundcardType == CT_Empty) return; if (!g_bMBAvailable) { return; } if(!g_bMBTimerIrqActive) MB_Update(); } //----------------------------------------------------------------------------- // Called by CpuExecute() after every N opcodes (N = ~1000 @ 1MHz) void MB_UpdateCycles(void) { SCOPE_TRACE_AUDIO("MB_UpdateCycles"); if(g_SoundcardType == CT_Empty) return; timing_checkpoint_cycles(); uint64_t uCycles = cycles_count_total - g_uLastCumulativeCycles; g_uLastCumulativeCycles = cycles_count_total; //assert(uCycles < 0x10000); if (uCycles >= 0x10000) { printf("OOPS!!! Mockingboard failed assert!\n"); return; } uint16_t nClocks = (uint16_t) uCycles; for(unsigned int i=0; isy6522.TIMER1_COUNTER.w; #ifndef APPLE2IX uint16_t OldTimer2 = pMB->sy6522.TIMER2_COUNTER.w; #endif pMB->sy6522.TIMER1_COUNTER.w -= nClocks; pMB->sy6522.TIMER2_COUNTER.w -= nClocks; // Check for counter underflow bool bTimer1Underflow = (!(OldTimer1 & 0x8000) && (pMB->sy6522.TIMER1_COUNTER.w & 0x8000)); #ifndef APPLE2IX bool bTimer2Underflow = (!(OldTimer2 & 0x8000) && (pMB->sy6522.TIMER2_COUNTER.w & 0x8000)); #endif if( bTimer1Underflow && (g_nMBTimerDevice == i) && g_bMBTimerIrqActive ) { #ifdef _DEBUG g_uTimer1IrqCount++; // DEBUG #endif pMB->sy6522.IFR |= IxR_TIMER1; UpdateIFR(pMB); if((pMB->sy6522.ACR & RUNMODE) == RM_ONESHOT) { // One-shot mode // - Phasor's playback code uses one-shot mode // - Willy Byte sets to one-shot to stop the timer IRQ StopTimer(pMB); } else { // Free-running mode // - Ultima4/5 change ACCESS_TIMER1 after a couple of IRQs into tune pMB->sy6522.TIMER1_COUNTER.w = pMB->sy6522.TIMER1_LATCH.w; StartTimer(pMB); } MB_Update(); } else if ( bTimer1Underflow && !g_bMBTimerIrqActive // StopTimer() has been called && (pMB->sy6522.IFR & IxR_TIMER1) // IRQ && ((pMB->sy6522.ACR & RUNMODE) == RM_ONESHOT) ) // One-shot mode { // Fix for Willy Byte - need to confirm that 6522 really does this! // . It never accesses IER/IFR/TIMER1 regs to clear IRQ pMB->sy6522.IFR &= ~IxR_TIMER1; // Deassert the TIMER IRQ UpdateIFR(pMB); } } } //----------------------------------------------------------------------------- SS_CARDTYPE MB_GetSoundcardType() { return g_SoundcardType; } void MB_SetSoundcardType(SS_CARDTYPE NewSoundcardType) { // if ((NewSoundcardType == SC_UNINIT) || (g_SoundcardType == NewSoundcardType)) if (g_SoundcardType == NewSoundcardType) return; g_SoundcardType = NewSoundcardType; if(g_SoundcardType == CT_Empty) MB_Mute(); g_bPhasorEnable = (g_SoundcardType == CT_Phasor); } //----------------------------------------------------------------------------- double MB_GetFramePeriod() { return (g_bMBTimerIrqActive||(g_MB[0].sy6522.IFR & IxR_TIMER1)) ? (double)g_n6522TimerPeriod : g_f6522TimerPeriod_NoIRQ; } bool MB_IsActive() { if(!MockingboardVoice->bActive) return false; // Ignore /g_bMBTimerIrqActive/ as timer's irq handler will access 6522 regs affecting /g_bMB_Active/ return g_bMB_Active; } //----------------------------------------------------------------------------- #if defined(APPLE2IX) void MB_SetVolumeZeroToTen(unsigned long goesToTen) { samplesScale = goesToTen/10.f; } #else static long NewVolume(unsigned long dwVolume, unsigned long dwVolumeMax) { float fVol = (float) dwVolume / (float) dwVolumeMax; // 0.0=Max, 1.0=Min return (long) ((float) DSBVOLUME_MIN * fVol); } void MB_SetVolume(unsigned long dwVolume, unsigned long dwVolumeMax) { MockingboardVoice->nVolume = NewVolume(dwVolume, dwVolumeMax); #if !defined(APPLE2IX) if(MockingboardVoice->bActive) MockingboardVoice->SetVolume(MockingboardVoice->nVolume); #endif } #endif //=========================================================================== unsigned long MB_GetSnapshot(SS_CARD_MOCKINGBOARD* pSS, unsigned long dwSlot) { #ifdef APPLE2IX // Saving and loading state currently unimplemented return 0; #else pSS->Hdr.UnitHdr.dwLength = sizeof(SS_CARD_DISK2); pSS->Hdr.UnitHdr.dwVersion = MAKE_VERSION(1,0,0,0); pSS->Hdr.dwSlot = dwSlot; pSS->Hdr.dwType = CT_MockingboardC; unsigned int nMbCardNum = dwSlot - SLOT4; unsigned int nDeviceNum = nMbCardNum*2; SY6522_AY8910* pMB = &g_MB[nDeviceNum]; for(unsigned int i=0; iUnit[i].RegsSY6522, &pMB->sy6522, sizeof(SY6522)); memcpy(&pSS->Unit[i].RegsAY8910, AY8910_GetRegsPtr(nDeviceNum), 16); memcpy(&pSS->Unit[i].RegsSSI263, &pMB->SpeechChip, sizeof(SSI263A)); pSS->Unit[i].nAYCurrentRegister = pMB->nAYCurrentRegister; nDeviceNum++; pMB++; } return 0; #endif } unsigned long MB_SetSnapshot(SS_CARD_MOCKINGBOARD* pSS, unsigned long dwSlot_unused) { #ifdef APPLE2IX // Saving and loading state currently unimplemented return 0; #else if(pSS->Hdr.UnitHdr.dwVersion != MAKE_VERSION(1,0,0,0)) return -1; unsigned int nMbCardNum = pSS->Hdr.dwSlot - SLOT4; unsigned int nDeviceNum = nMbCardNum*2; SY6522_AY8910* pMB = &g_MB[nDeviceNum]; g_nSSI263Device = 0; g_nCurrentActivePhoneme = -1; for(unsigned int i=0; isy6522, &pSS->Unit[i].RegsSY6522, sizeof(SY6522)); memcpy(AY8910_GetRegsPtr(nDeviceNum), &pSS->Unit[i].RegsAY8910, 16); memcpy(&pMB->SpeechChip, &pSS->Unit[i].RegsSSI263, sizeof(SSI263A)); pMB->nAYCurrentRegister = pSS->Unit[i].nAYCurrentRegister; StartTimer(pMB); // Attempt to start timer // // Crude - currently only support a single speech chip // FIX THIS: // . Speech chip could be Votrax instead // . Is this IRQ compatible with Phasor? if(pMB->SpeechChip.DurationPhonome) { g_nSSI263Device = nDeviceNum; if((pMB->SpeechChip.CurrentMode != MODE_IRQ_DISABLED) && (pMB->sy6522.PCR == 0x0C) && (pMB->sy6522.IER & IxR_PERIPHERAL)) { pMB->sy6522.IFR |= IxR_PERIPHERAL; UpdateIFR(pMB); pMB->SpeechChip.CurrentMode |= 1; // Set SSI263's D7 pin } } nDeviceNum++; pMB++; } return 0; #endif }