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AppleWin/source/Mockingboard.cpp
ThorstenB 4543117f81
More clean-up, portability and another debugger fix (PR #847) 
Fixed debugger main "data" window behaviour:
. When activating the main data display ("data" command) the cursor keys wouldn't work until the minidump ("md1") was also enabled. NB. The cursor keys should work in the main data window, independently of whether the minidump is active.
2020-10-25 17:27:59 +00:00

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/*
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
*/
// 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 "StdAfx.h"
#include "SaveState_Structs_v1.h"
#include "Applewin.h"
#include "CardManager.h"
#include "CPU.h"
#include "Log.h"
#include "Memory.h"
#include "Mockingboard.h"
#include "SoundCore.h"
#include "SynchronousEventManager.h"
#include "YamlHelper.h"
#include "Riff.h"
#include "AY8910.h"
#include "SSI263Phonemes.h"
#define LOG_SSI263 0
#define LOG_SSI263B 0 // Alternate SSI263 logging (use in conjunction with CPU.cpp's LOG_IRQ_TAKEN_AND_RTI)
#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<<Phasor_SY6522A_CS)
//#define Phasor_SY6522B_Offset (1<<Phasor_SY6522B_CS)
enum MockingboardUnitState_e {AY_NOP0, AY_NOP1, AY_INACTIVE, AY_READ, AY_NOP4, AY_NOP5, AY_WRITE, AY_LATCH};
struct SY6522_AY8910
{
SY6522 sy6522;
BYTE nAY8910Number;
BYTE nAYCurrentRegister;
bool bTimer1Active;
bool bTimer2Active;
SSI263A SpeechChip;
MockingboardUnitState_e state; // Where a unit is a 6522+AY8910 pair
MockingboardUnitState_e stateB; // Phasor: 6522 & 2nd AY8910
};
// IFR & IER:
#define IxR_PERIPHERAL (1<<1)
#define IxR_VOTRAX (1<<4) // TO DO: Get proper name from 6522 datasheet!
#define IxR_TIMER2 (1<<5)
#define IxR_TIMER1 (1<<6)
// ACR:
#define RUNMODE (1<<6) // 0 = 1-Shot Mode, 1 = Free Running Mode
#define RM_ONESHOT (0<<6)
#define RM_FREERUNNING (1<<6)
// SSI263A registers:
#define SSI_DURPHON 0x00
#define SSI_INFLECT 0x01
#define SSI_RATEINF 0x02
#define SSI_CTTRAMP 0x03
#define SSI_FILFREQ 0x04
// Support 2 MB's, each with 2x SY6522/AY8910 pairs.
static SY6522_AY8910 g_MB[NUM_AY8910];
const UINT kExtraTimerCycles = 2; // Rockwell, Fig.16: period = N+2 cycles
const UINT kNumTimersPer6522 = 2;
const UINT kNumSyncEvents = NUM_MB * NUM_SY6522 * kNumTimersPer6522;
static SyncEvent* g_syncEvent[kNumSyncEvents];
// Timer vars
static const UINT kTIMERDEVICE_INVALID = -1;
static UINT g_nMBTimerDevice = kTIMERDEVICE_INVALID; // SY6522 device# which is generating timer IRQ
static UINT64 g_uLastCumulativeCycles = 0;
// SSI263 vars:
static USHORT g_nSSI263Device = 0; // SSI263 device# which is generating phoneme-complete IRQ
static volatile int g_nCurrentActivePhoneme = -1; // Modified by threads: main & SSI263Thread
static volatile bool g_bStopPhoneme = false; // Modified by threads: main & SSI263Thread
static bool g_bVotraxPhoneme = false;
static const DWORD SAMPLE_RATE = 44100; // Use a base freq so that DirectX (or sound h/w) doesn't have to up/down-sample
static short* ppAYVoiceBuffer[NUM_VOICES] = {0};
static unsigned __int64 g_nMB_InActiveCycleCount = 0;
static bool g_bMB_RegAccessedFlag = false;
static bool g_bMB_Active = false;
static HANDLE g_hThread = NULL;
static bool g_bMBAvailable = false;
//
static SS_CARDTYPE g_SoundcardType = CT_Empty; // Use CT_Empty to mean: no soundcard
static bool g_bPhasorEnable = false;
enum PHASOR_MODE {PH_Mockingboard=0, PH_UNDEF1, PH_UNDEF2, PH_UNDEF3, PH_UNDEF4, PH_Phasor/*=5*/, PH_UNDEF6, PH_EchoPlus/*=7*/};
static PHASOR_MODE g_phasorMode = PH_Mockingboard;
static UINT g_PhasorClockScaleFactor = 1; // for save-state only
//-------------------------------------
static const unsigned short g_nMB_NumChannels = 2;
static const DWORD g_dwDSBufferSize = MAX_SAMPLES * sizeof(short) * g_nMB_NumChannels;
static const SHORT nWaveDataMin = (SHORT)0x8000;
static const SHORT nWaveDataMax = (SHORT)0x7FFF;
static short g_nMixBuffer[g_dwDSBufferSize / sizeof(short)];
static VOICE MockingboardVoice = {0};
static VOICE SSI263Voice[64] = {0};
static const int g_nNumEvents = 2;
static HANDLE g_hSSI263Event[g_nNumEvents] = {NULL}; // 1: Phoneme finished playing, 2: Exit thread
static DWORD g_dwMaxPhonemeLen = 0;
static bool g_bCritSectionValid = false; // Deleting CritialSection when not valid causes crash on Win98
static CRITICAL_SECTION g_CriticalSection; // To guard 6522's IFR
static UINT g_cyclesThisAudioFrame = 0;
//---------------------------------------------------------------------------
// Forward refs:
static DWORD WINAPI SSI263Thread(LPVOID);
static void Votrax_Write(BYTE nDevice, BYTE nValue);
static int MB_SyncEventCallback(int id, int cycles, ULONG uExecutedCycles);
//---------------------------------------------------------------------------
static void StartTimer1(SY6522_AY8910* pMB)
{
pMB->bTimer1Active = true;
if (pMB->sy6522.IER & IxR_TIMER1) // Using 6522 interrupt
g_nMBTimerDevice = pMB->nAY8910Number;
else if (pMB->sy6522.ACR & RM_FREERUNNING) // Polling 6522 IFR (GH#496)
g_nMBTimerDevice = pMB->nAY8910Number;
}
// The assumption was that timer1 was only active if IER.TIMER1=1
// . Not true, since IFR can be polled (with IER.TIMER1=0)
static void StartTimer1_LoadStateV1(SY6522_AY8910* pMB)
{
if ((pMB->sy6522.IER & IxR_TIMER1) == 0x00)
return;
pMB->bTimer1Active = true;
g_nMBTimerDevice = pMB->nAY8910Number;
}
static void StopTimer1(SY6522_AY8910* pMB)
{
pMB->bTimer1Active = false;
g_nMBTimerDevice = kTIMERDEVICE_INVALID;
}
//-----------------------------------------------------------------------------
static void StartTimer2(SY6522_AY8910* pMB)
{
pMB->bTimer2Active = true;
// NB. Can't mimic StartTimer1() as that would stomp on global state
// TODO: Switch to per-device state
}
static void StopTimer2(SY6522_AY8910* pMB)
{
pMB->bTimer2Active = false;
}
//-----------------------------------------------------------------------------
static void ResetSY6522(SY6522_AY8910* pMB)
{
memset(&pMB->sy6522,0,sizeof(SY6522));
StopTimer1(pMB);
StopTimer2(pMB);
pMB->nAYCurrentRegister = 0;
pMB->state = AY_INACTIVE;
pMB->stateB = AY_INACTIVE;
}
//-----------------------------------------------------------------------------
static void AY8910_Write(BYTE nDevice, BYTE /*nReg*/, BYTE nValue, BYTE 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;
MockingboardUnitState_e nAYFunc = (MockingboardUnitState_e) ((nBDIR<<2) | (nBC2<<1) | nBC1);
MockingboardUnitState_e& state = (nAYDevice == 0) ? pMB->state : pMB->stateB; // GH#659
#if _DEBUG
if (!g_bPhasorEnable)
_ASSERT(nAYDevice == 0);
if (nAYFunc == AY_WRITE || nAYFunc == AY_LATCH)
_ASSERT(state == AY_INACTIVE);
#endif
if (state == AY_INACTIVE) // GH#320: functions only work from inactive state
{
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;
}
}
state = nAYFunc;
}
}
static UINT GetOpcodeCycles(BYTE reg)
{
UINT opcodeCycles = 0;
BYTE opcode = 0;
bool abs16 = false;
const BYTE opcodeMinus3 = mem[(regs.pc-3)&0xffff];
const BYTE opcodeMinus2 = mem[(regs.pc-2)&0xffff];
if ( (opcodeMinus3 == 0x8C) || // sty abs16
(opcodeMinus3 == 0x8D) || // sta abs16
(opcodeMinus3 == 0x8E) ) // stx abs16
{ // Eg. FT demos: CHIP, MADEF, MAD2
opcodeCycles = 4;
opcode = opcodeMinus3;
abs16 = true;
}
else if ( (opcodeMinus3 == 0x99) || // sta abs16,y
(opcodeMinus3 == 0x9D) ) // sta abs16,x
{ // Eg. Paleotronic microTracker demo
opcodeCycles = 5;
opcode = opcodeMinus3;
abs16 = true;
}
else if (opcodeMinus2 == 0x81) // sta (zp,x)
{
opcodeCycles = 6;
opcode = opcodeMinus2;
}
else if (opcodeMinus2 == 0x91) // sta (zp),y
{ // Eg. FT demos: OMT, PLS
opcodeCycles = 6;
opcode = opcodeMinus2;
}
else if (opcodeMinus2 == 0x92 && GetMainCpu() == CPU_65C02) // sta (zp) : 65C02-only
{
opcodeCycles = 5;
opcode = opcodeMinus2;
}
else
{
_ASSERT(0);
opcodeCycles = 0;
return 0;
}
//
WORD addr16 = 0;
if (!abs16)
{
BYTE zp = mem[(regs.pc-1)&0xffff];
if (opcode == 0x81) zp += regs.x;
addr16 = (mem[zp] | (mem[(zp+1)&0xff]<<8));
if (opcode == 0x91) addr16 += regs.y;
}
else
{
addr16 = mem[(regs.pc-2)&0xffff] | (mem[(regs.pc-1)&0xffff]<<8);
if (opcode == 0x99) addr16 += regs.y;
if (opcode == 0x9D) addr16 += regs.x;
}
// Check we've reverse looked-up the 6502 opcode correctly
if ((addr16 & 0xF80F) != (0xC000+reg))
{
_ASSERT(0);
return 0;
}
return opcodeCycles;
}
// Insert a new synchronous event whenever the 6522 timer's counter is written.
// . NB. it doesn't matter if the timer's interrupt enable (IER) is set or not
// - the state of IER is only important when the counter underflows - see: MB_SyncEventCallback()
static USHORT SetTimerSyncEvent(UINT id, BYTE reg, USHORT timerLatch)
{
// NB. This TIMER adjustment value gets subtracted when this current opcode completes, so no need to persist to save-state
const UINT opcodeCycleAdjust = GetOpcodeCycles(reg);
SyncEvent* pSyncEvent = g_syncEvent[id];
if (pSyncEvent->m_active)
g_SynchronousEventMgr.Remove(id);
pSyncEvent->SetCycles(timerLatch + kExtraTimerCycles + opcodeCycleAdjust);
g_SynchronousEventMgr.Insert(pSyncEvent);
// It doesn't matter if this overflows (ie. >0xFFFF), since on completion of current opcode it'll be corrected
return (USHORT) (timerLatch + opcodeCycleAdjust);
}
static void UpdateIFR(SY6522_AY8910* pMB, BYTE clr_ifr, BYTE set_ifr=0)
{
// Need critical section to avoid data-race: main thread & SSI263Thread can both access IFR
// . NB. Loading a save-state just directly writes into 6522.IFR (which is fine)
_ASSERT(g_bCritSectionValid);
if (g_bCritSectionValid) EnterCriticalSection(&g_CriticalSection);
{
pMB->sy6522.IFR &= ~clr_ifr;
pMB->sy6522.IFR |= set_ifr;
if (pMB->sy6522.IFR & pMB->sy6522.IER & 0x7F)
pMB->sy6522.IFR |= 0x80;
else
pMB->sy6522.IFR &= 0x7F;
}
if (g_bCritSectionValid) LeaveCriticalSection(&g_CriticalSection);
// Now update the IRQ signal from all 6522s
// . OR-sum of all active TIMER1, TIMER2 & SPEECH sources (from all 6522s)
UINT bIRQ = 0;
for (UINT i=0; i<NUM_SY6522; i++)
bIRQ |= g_MB[i].sy6522.IFR & 0x80;
// NB. Mockingboard generates IRQ on both 6522s:
// . SSI263's IRQ (A/!R) is routed via the 2nd 6522 (at $Cx80) and must generate a 6502 IRQ (not NMI)
// . SC-01's IRQ (A/!R) is also routed via a (2nd?) 6522
// Phasor's SSI263 IRQ (A/!R) line is *also* wired directly to the 6502's IRQ (as well as the 6522's CA1)
if (bIRQ)
CpuIrqAssert(IS_6522);
else
CpuIrqDeassert(IS_6522);
}
static void SY6522_Write(BYTE nDevice, BYTE nReg, BYTE nValue)
{
g_bMB_Active = true;
SY6522_AY8910* pMB = &g_MB[nDevice];
switch (nReg)
{
case 0x00: // ORB
{
nValue &= pMB->sy6522.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_phasorMode == PH_Phasor) ? (~(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
{
UpdateIFR(pMB, IxR_TIMER1); // Clear Timer1 Interrupt Flag
pMB->sy6522.TIMER1_LATCH.h = nValue;
const UINT id = nDevice*kNumTimersPer6522+0; // TIMER1
pMB->sy6522.TIMER1_COUNTER.w = SetTimerSyncEvent(id, nReg, pMB->sy6522.TIMER1_LATCH.w);
StartTimer1(pMB);
}
break;
case 0x07: // TIMER1H_LATCH
UpdateIFR(pMB, IxR_TIMER1); // Clear Timer1 Interrupt Flag
pMB->sy6522.TIMER1_LATCH.h = nValue;
break;
case 0x08: // TIMER2L
pMB->sy6522.TIMER2_LATCH.l = nValue;
break;
case 0x09: // TIMER2H
{
UpdateIFR(pMB, IxR_TIMER2); // Clear Timer2 Interrupt Flag
pMB->sy6522.TIMER2_LATCH.h = nValue; // NB. Real 6522 doesn't have TIMER2_LATCH.h
const UINT id = nDevice*kNumTimersPer6522+1; // TIMER2
pMB->sy6522.TIMER2_COUNTER.w = SetTimerSyncEvent(id, nReg, pMB->sy6522.TIMER2_LATCH.w);
StartTimer2(pMB);
}
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.
UpdateIFR(pMB, nValue);
break;
case 0x0e: // IER
if(!(nValue & 0x80))
{
// Clear those bits which are set in the lower 7 bits.
nValue ^= 0x7F;
pMB->sy6522.IER &= nValue;
}
else
{
// Set those bits which are set in the lower 7 bits.
nValue &= 0x7F;
pMB->sy6522.IER |= nValue;
}
UpdateIFR(pMB, 0);
break;
case 0x0f: // ORA_NO_HS
break;
}
}
//-----------------------------------------------------------------------------
static BYTE SY6522_Read(BYTE nDevice, BYTE nReg)
{
// g_bMB_RegAccessedFlag = true;
g_bMB_Active = true;
SY6522_AY8910* pMB = &g_MB[nDevice];
BYTE 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
// NB. GH#701 (T1C:=0xFFFF, LDA T1C_L, A==0xFC)
nValue = (pMB->sy6522.TIMER1_COUNTER.w - 3) & 0xff; // -3 to compensate for the (assumed) 4-cycle STA 6522.T1C_H
UpdateIFR(pMB, IxR_TIMER1);
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;
UpdateIFR(pMB, IxR_TIMER2);
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 | pMB->sy6522.IER; // GH#567
break;
case 0x0f: // ORA_NO_HS
nValue = pMB->sy6522.ORA;
break;
}
return nValue;
}
//---------------------------------------------------------------------------
static void SSI263_Play(unsigned int nPhoneme);
#if 0
typedef struct
{
BYTE DurationPhoneme;
BYTE Inflection; // I10..I3
BYTE RateInflection;
BYTE CtrlArtAmp;
BYTE FilterFreq;
//
BYTE CurrentMode;
} SSI263A;
#endif
//static SSI263A nSpeechChip;
// Duration/Phonome
const BYTE DURATION_MODE_MASK = 0xC0;
const BYTE PHONEME_MASK = 0x3F;
const BYTE MODE_PHONEME_TRANSITIONED_INFLECTION = 0xC0; // IRQ active
const BYTE MODE_PHONEME_IMMEDIATE_INFLECTION = 0x80; // IRQ active
const BYTE MODE_FRAME_IMMEDIATE_INFLECTION = 0x40; // IRQ active
const BYTE MODE_IRQ_DISABLED = 0x00;
// Rate/Inflection
const BYTE RATE_MASK = 0xF0;
const BYTE INFLECTION_MASK_H = 0x08; // I11
const BYTE INFLECTION_MASK_L = 0x07; // I2..I0
// Ctrl/Art/Amp
const BYTE CONTROL_MASK = 0x80;
const BYTE ARTICULATION_MASK = 0x70;
const BYTE AMPLITUDE_MASK = 0x0F;
#if LOG_SSI263B
static int ssiRegs[5]={-1,-1,-1,-1,-1};
void SSI_Output(void)
{
LogOutput("SSI: ");
for (int i=0; i<=4; i++)
{
char r[3]="--";
if (ssiRegs[i]>=0) sprintf(r,"%02X",ssiRegs[i]);
LogOutput("%s ", r);
ssiRegs[i] = -1;
}
LogOutput("\n");
}
#endif
static BYTE SSI263_Read(BYTE nDevice, ULONG nExecutedCycles)
{
SY6522_AY8910* pMB = &g_MB[nDevice];
// Regardless of register, just return inverted A/!R in bit7
// . A/!R is low for IRQ
return MemReadFloatingBus(pMB->SpeechChip.CurrentMode & 1, nExecutedCycles);
}
static void SSI263_Write(BYTE nDevice, BYTE nReg, BYTE nValue)
{
SY6522_AY8910* pMB = &g_MB[nDevice];
#if LOG_SSI263B
_ASSERT(nReg < 5);
if (nReg>4) nReg=4;
if (ssiRegs[nReg]>=0) SSI_Output(); // overwriting a reg
ssiRegs[nReg] = nValue;
#endif
switch(nReg)
{
case SSI_DURPHON:
#if LOG_SSI263
if(g_fh) fprintf(g_fh, "DUR = 0x%02X, PHON = 0x%02X\n\n", nValue>>6, nValue&PHONEME_MASK);
LogOutput("DUR = %d, PHON = 0x%02X\n", nValue>>6, nValue&PHONEME_MASK);
#endif
#if LOG_SSI263B
SSI_Output();
#endif
// Notes:
// . Phasor's text-to-speech playback has no CTL H->L
// - ISR just writes CTL=0 (and new ART+AMP values), and writes DUR=x (and new PHON)
// - since no CTL H->L, then DUR value doesn't take affect (so continue using previous)
// - so the write to DURPHON must clear the IRQ
// . Does a write of CTL=0 clear IRQ? (ie. CTL 0->0)
// . Does a write of CTL=1 clear IRQ? (ie. CTL 0->1)
// - SSI263 datasheet says: "Setting the Control bit (CTL) to a logic one puts the device into Power Down mode..."
// . Does phoneme output only happen when CTL=0? (Otherwise device is in PD mode)
// SSI263 datasheet is not clear, but a write to DURPHON must clear the IRQ.
// NB. For Mockingboard, A/!R is ack'ed by 6522's PCR handshake.
if (g_bPhasorEnable && g_phasorMode == PH_Phasor)
CpuIrqDeassert(IS_SPEECH);
pMB->SpeechChip.CurrentMode &= ~1; // Clear SSI263's D7 pin
pMB->SpeechChip.DurationPhoneme = nValue;
g_nSSI263Device = nDevice;
SSI263_Play(nValue & PHONEME_MASK);
break;
case SSI_INFLECT:
#if LOG_SSI263
if(g_fh) fprintf(g_fh, "INF = 0x%02X\n", nValue);
#endif
pMB->SpeechChip.Inflection = nValue;
break;
case SSI_RATEINF:
#if LOG_SSI263
if(g_fh) fprintf(g_fh, "RATE = 0x%02X, INF = 0x%02X\n", nValue>>4, nValue&0x0F);
#endif
pMB->SpeechChip.RateInflection = nValue;
break;
case SSI_CTTRAMP:
#if LOG_SSI263
if(g_fh) fprintf(g_fh, "CTRL = %d, ART = 0x%02X, AMP=0x%02X\n", nValue>>7, (nValue&ARTICULATION_MASK)>>4, nValue&AMPLITUDE_MASK);
//
{
bool H2L = (pMB->SpeechChip.CtrlArtAmp & CONTROL_MASK) && !(nValue & CONTROL_MASK);
char newMode[20];
sprintf_s(newMode, sizeof(newMode), "(new mode=%d)", pMB->SpeechChip.DurationPhoneme>>6);
LogOutput("CTRL = %d->%d, ART = 0x%02X, AMP=0x%02X %s\n", pMB->SpeechChip.CtrlArtAmp>>7, nValue>>7, (nValue&ARTICULATION_MASK)>>4, nValue&AMPLITUDE_MASK, H2L?newMode:"");
}
#endif
#if LOG_SSI263B
if ( ((pMB->SpeechChip.CtrlArtAmp & CONTROL_MASK) && !(nValue & CONTROL_MASK)) || ((nValue&0xF) == 0x0) ) // H->L or amp=0
SSI_Output();
#endif
if((pMB->SpeechChip.CtrlArtAmp & CONTROL_MASK) && !(nValue & CONTROL_MASK)) // H->L
{
pMB->SpeechChip.CurrentMode = pMB->SpeechChip.DurationPhoneme & DURATION_MODE_MASK;
if (pMB->SpeechChip.CurrentMode == MODE_IRQ_DISABLED)
{
// "Disables A/!R output only; does not change previous A/!R response" (SSI263 datasheet)
// CpuIrqDeassert(IS_SPEECH);
}
}
pMB->SpeechChip.CtrlArtAmp = nValue;
// "Setting the Control bit (CTL) to a logic one puts the device into Power Down mode..." (SSI263 datasheet)
if (pMB->SpeechChip.CtrlArtAmp & CONTROL_MASK)
{
// CpuIrqDeassert(IS_SPEECH);
// pMB->SpeechChip.CurrentMode &= ~1; // Clear SSI263's D7 pin
}
break;
case SSI_FILFREQ: // RegAddr.b2=1 (b1 & b0 are: don't care)
default:
#if LOG_SSI263
if(g_fh) fprintf(g_fh, "FFREQ = 0x%02X\n", nValue);
#endif
pMB->SpeechChip.FilterFreq = nValue;
break;
}
}
//-------------------------------------
static BYTE Votrax2SSI263[64] =
{
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(BYTE nDevice, BYTE nValue)
{
g_bVotraxPhoneme = true;
// !A/R: Acknowledge receipt of phoneme data (signal goes from high to low)
SY6522_AY8910* pMB = &g_MB[nDevice];
UpdateIFR(pMB, IxR_VOTRAX);
g_nSSI263Device = nDevice;
SSI263_Play(Votrax2SSI263[nValue & PHONEME_MASK]);
}
//===========================================================================
//#define DBG_MB_UPDATE
static UINT64 g_uLastMBUpdateCycle = 0;
// Called by:
// . MB_UpdateCycles() - when g_nMBTimerDevice == {0,1,2,3}
// . MB_PeriodicUpdate() - when g_nMBTimerDevice == kTIMERDEVICE_INVALID
static void MB_UpdateInt(void)
{
if (!MockingboardVoice.bActive)
return;
if (g_bFullSpeed)
{
// Keep AY reg writes relative to the current 'frame'
// - Required for Ultima3:
// . Tune ends
// . g_bFullSpeed:=true (disk-spinning) for ~50 frames
// . U3 sets AY_ENABLE:=0xFF (as a side-effect, this sets g_bFullSpeed:=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 = g_nCumulativeCycles;
}
else if(g_nCumulativeCycles - g_nMB_InActiveCycleCount > (unsigned __int64)g_fCurrentCLK6502/10)
{
// 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;
}
//
// For small timer periods, wait for a period of 500cy before updating DirectSound ring-buffer.
// NB. A timer period of less than 24cy will yield nNumSamplesPerPeriod=0.
const double kMinimumUpdateInterval = 500.0; // Arbitary (500 cycles = 21 samples)
const double kMaximumUpdateInterval = (double)(0xFFFF+2); // Max 6522 timer interval (2756 samples)
if (g_uLastMBUpdateCycle == 0)
g_uLastMBUpdateCycle = g_uLastCumulativeCycles; // Initial call to MB_Update() after reset/power-cycle
_ASSERT(g_uLastCumulativeCycles >= g_uLastMBUpdateCycle);
double updateInterval = (double)(g_uLastCumulativeCycles - g_uLastMBUpdateCycle);
if (updateInterval < kMinimumUpdateInterval)
return;
if (updateInterval > kMaximumUpdateInterval)
updateInterval = kMaximumUpdateInterval;
g_uLastMBUpdateCycle = g_uLastCumulativeCycles;
const double nIrqFreq = g_fCurrentCLK6502 / updateInterval + 0.5; // Round-up
const int nNumSamplesPerPeriod = (int) ((double)SAMPLE_RATE / nIrqFreq); // Eg. For 60Hz this is 735
static int nNumSamplesError = 0;
int nNumSamples = nNumSamplesPerPeriod + nNumSamplesError; // Apply correction
if(nNumSamples <= 0)
nNumSamples = 0;
if(nNumSamples > 2*nNumSamplesPerPeriod)
nNumSamples = 2*nNumSamplesPerPeriod;
if (nNumSamples > SAMPLE_RATE)
nNumSamples = SAMPLE_RATE; // Clamp to prevent buffer overflow (bufferSize = SAMPLE_RATE)
if(nNumSamples)
for(int nChip=0; nChip<NUM_AY8910; nChip++)
AY8910Update(nChip, &ppAYVoiceBuffer[nChip*NUM_VOICES_PER_AY8910], nNumSamples);
//
DWORD dwCurrentPlayCursor, dwCurrentWriteCursor;
HRESULT hr = MockingboardVoice.lpDSBvoice->GetCurrentPosition(&dwCurrentPlayCursor, &dwCurrentWriteCursor);
if(FAILED(hr))
return;
static DWORD dwByteOffset = (DWORD)-1;
if(dwByteOffset == (DWORD)-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))
{
#ifdef DBG_MB_UPDATE
double fTicksSecs = (double)GetTickCount() / 1000.0;
LogOutput("%010.3f: [MBUpdt] PC=%08X, WC=%08X, Diff=%08X, Off=%08X, NS=%08X xxx\n", fTicksSecs, dwCurrentPlayCursor, dwCurrentWriteCursor, dwCurrentWriteCursor-dwCurrentPlayCursor, dwByteOffset, nNumSamples);
#endif
dwByteOffset = dwCurrentWriteCursor;
nNumSamplesError = 0;
}
}
else
{
// |xxW----------Pxxx|
if((dwByteOffset > dwCurrentPlayCursor) || (dwByteOffset < dwCurrentWriteCursor))
{
#ifdef DBG_MB_UPDATE
double fTicksSecs = (double)GetTickCount() / 1000.0;
LogOutput("%010.3f: [MBUpdt] PC=%08X, WC=%08X, Diff=%08X, Off=%08X, NS=%08X XXX\n", fTicksSecs, dwCurrentPlayCursor, dwCurrentWriteCursor, dwCurrentWriteCursor-dwCurrentPlayCursor, dwByteOffset, nNumSamples);
#endif
dwByteOffset = dwCurrentWriteCursor;
nNumSamplesError = 0;
}
}
}
int nBytesRemaining = dwByteOffset - dwCurrentPlayCursor;
if(nBytesRemaining < 0)
nBytesRemaining += g_dwDSBufferSize;
// Calc correction factor so that play-buffer doesn't under/overflow
const int nErrorInc = SoundCore_GetErrorInc();
if(nBytesRemaining < g_dwDSBufferSize / 4)
nNumSamplesError += nErrorInc; // < 0.25 of buffer remaining
else if(nBytesRemaining > g_dwDSBufferSize / 2)
nNumSamplesError -= nErrorInc; // > 0.50 of buffer remaining
else
nNumSamplesError = 0; // Acceptable amount of data in buffer
#ifdef DBG_MB_UPDATE
double fTicksSecs = (double)GetTickCount() / 1000.0;
LogOutput("%010.3f: [MBUpdt] PC=%08X, WC=%08X, Diff=%08X, Off=%08X, NS=%08X, NSE=%08X, Interval=%f\n", fTicksSecs, dwCurrentPlayCursor, dwCurrentWriteCursor, dwCurrentWriteCursor - dwCurrentPlayCursor, dwByteOffset, nNumSamples, nNumSamplesError, updateInterval);
#endif
if(nNumSamples == 0)
return;
//
const double fAttenuation = g_bPhasorEnable ? 2.0/3.0 : 1.0;
for(int i=0; i<nNumSamples; i++)
{
// Mockingboard stereo (all voices on an AY8910 wire-or'ed together)
// L = Address.b7=0, R = Address.b7=1
int nDataL = 0, nDataR = 0;
for(UINT j=0; j<NUM_VOICES_PER_AY8910; j++)
{
// Slot4
nDataL += (int) ((double)ppAYVoiceBuffer[0*NUM_VOICES_PER_AY8910+j][i] * fAttenuation);
nDataR += (int) ((double)ppAYVoiceBuffer[1*NUM_VOICES_PER_AY8910+j][i] * fAttenuation);
// Slot5
nDataL += (int) ((double)ppAYVoiceBuffer[2*NUM_VOICES_PER_AY8910+j][i] * fAttenuation);
nDataR += (int) ((double)ppAYVoiceBuffer[3*NUM_VOICES_PER_AY8910+j][i] * fAttenuation);
}
// Cap the superpositioned output
if(nDataL < nWaveDataMin)
nDataL = nWaveDataMin;
else if(nDataL > nWaveDataMax)
nDataL = nWaveDataMax;
if(nDataR < nWaveDataMin)
nDataR = nWaveDataMin;
else if(nDataR > nWaveDataMax)
nDataR = nWaveDataMax;
g_nMixBuffer[i*g_nMB_NumChannels+0] = (short)nDataL; // L
g_nMixBuffer[i*g_nMB_NumChannels+1] = (short)nDataR; // R
}
//
DWORD dwDSLockedBufferSize0, dwDSLockedBufferSize1;
SHORT *pDSLockedBuffer0, *pDSLockedBuffer1;
if(!DSGetLock(MockingboardVoice.lpDSBvoice,
dwByteOffset, (DWORD)nNumSamples*sizeof(short)*g_nMB_NumChannels,
&pDSLockedBuffer0, &dwDSLockedBufferSize0,
&pDSLockedBuffer1, &dwDSLockedBufferSize1))
return;
memcpy(pDSLockedBuffer0, &g_nMixBuffer[0], dwDSLockedBufferSize0);
if(pDSLockedBuffer1)
memcpy(pDSLockedBuffer1, &g_nMixBuffer[dwDSLockedBufferSize0/sizeof(short)], dwDSLockedBufferSize1);
// Commit sound buffer
hr = MockingboardVoice.lpDSBvoice->Unlock((void*)pDSLockedBuffer0, dwDSLockedBufferSize0,
(void*)pDSLockedBuffer1, dwDSLockedBufferSize1);
dwByteOffset = (dwByteOffset + (DWORD)nNumSamples*sizeof(short)*g_nMB_NumChannels) % g_dwDSBufferSize;
#ifdef RIFF_MB
RiffPutSamples(&g_nMixBuffer[0], nNumSamples);
#endif
}
static void MB_Update(void)
{
#ifdef LOG_PERF_TIMINGS
extern UINT64 g_timeMB_NoTimer;
extern UINT64 g_timeMB_Timer;
PerfMarker perfMarker(g_nMBTimerDevice == kTIMERDEVICE_INVALID ? g_timeMB_NoTimer : g_timeMB_Timer);
#endif
MB_UpdateInt();
}
//-----------------------------------------------------------------------------
// Called by SSI263Thread(), MB_LoadSnapshot & Phasor_LoadSnapshot
// Pre: g_bVotraxPhoneme, g_bPhasorEnable, g_phasorMode
static void SetSpeechIRQ(SY6522_AY8910* pMB)
{
if (!g_bVotraxPhoneme)
{
// Always set SSI263's D7 pin regardless of SSI263 mode (DR1:0), including MODE_IRQ_DISABLED
pMB->SpeechChip.CurrentMode |= 1; // Set SSI263's D7 pin
if ((pMB->SpeechChip.CurrentMode & DURATION_MODE_MASK) != MODE_IRQ_DISABLED)
{
if (!g_bPhasorEnable || (g_bPhasorEnable && g_phasorMode == PH_Mockingboard))
{
if ((pMB->sy6522.PCR & 1) == 0) // CA1 Latch/Input = 0 (Negative active edge)
UpdateIFR(pMB, 0, IxR_PERIPHERAL);
if (pMB->sy6522.PCR == 0x0C) // CA2 Control = b#110 (Low output)
pMB->SpeechChip.CurrentMode &= ~1; // Clear SSI263's D7 pin (cleared by 6522's PCR CA1/CA2 handshake)
// NB. Don't set CTL=1, as Mockingboard(SMS) speech doesn't work (it sets MODE_IRQ_DISABLED mode during ISR)
//pMB->SpeechChip.CtrlArtAmp |= CONTROL_MASK; // 6522's CA2 sets Power Down mode (pin 18), which sets Control bit
}
else if (g_bPhasorEnable && g_phasorMode == PH_Phasor) // Phasor's SSI263 IRQ (A/!R) line is *also* wired directly to the 6502's IRQ (as well as the 6522's CA1)
{
CpuIrqAssert(IS_SPEECH);
}
}
}
//
if (g_bVotraxPhoneme && pMB->sy6522.PCR == 0xB0)
{
// !A/R: Time-out of old phoneme (signal goes from low to high)
UpdateIFR(pMB, 0, IxR_VOTRAX);
g_bVotraxPhoneme = false;
}
}
static DWORD WINAPI SSI263Thread(LPVOID lpParameter)
{
while(1)
{
DWORD dwWaitResult = WaitForMultipleObjects(
g_nNumEvents, // number of handles in array
g_hSSI263Event, // array of event handles
FALSE, // wait until any one is signaled
INFINITE);
if((dwWaitResult < WAIT_OBJECT_0) || (dwWaitResult > WAIT_OBJECT_0+g_nNumEvents-1))
continue;
dwWaitResult -= WAIT_OBJECT_0; // Determine event # that signaled
if(dwWaitResult == (g_nNumEvents-1)) // Termination event
break;
// 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
if (g_nCurrentActivePhoneme < 0)
continue; // On CTRL+RESET or power-cycle (during phoneme playback): ResetState() is called, which set g_nCurrentActivePhoneme=-1
SSI263Voice[g_nCurrentActivePhoneme].bActive = false;
g_nCurrentActivePhoneme = -1;
// Phoneme complete, so generate IRQ if necessary
SY6522_AY8910* pMB = &g_MB[g_nSSI263Device];
SetSpeechIRQ(pMB);
}
return 0;
}
//-----------------------------------------------------------------------------
static void SSI263_Play(unsigned int nPhoneme)
{
#if 1
HRESULT hr;
{
int nCurrPhoneme = g_nCurrentActivePhoneme; // local copy in case SSI263Thread sets it to -1
if (nCurrPhoneme >= 0)
{
// A write to DURPHON before previous phoneme has completed
g_bStopPhoneme = true;
hr = SSI263Voice[nCurrPhoneme].lpDSBvoice->Stop();
// Busy-wait until ACK from SSI263Thread
// . required to avoid data-race
while ( g_bStopPhoneme && // wait for SSI263Thread to ACK the lpDSBVoice->Stop()
g_nCurrentActivePhoneme >= 0) // wait for SSI263Thread to get end of sample event
;
g_bStopPhoneme = false;
}
}
g_nCurrentActivePhoneme = nPhoneme;
hr = SSI263Voice[g_nCurrentActivePhoneme].lpDSBvoice->SetCurrentPosition(0);
if(FAILED(hr))
return;
hr = SSI263Voice[g_nCurrentActivePhoneme].lpDSBvoice->Play(0,0,0); // Not looping
if(FAILED(hr))
return;
SSI263Voice[g_nCurrentActivePhoneme].bActive = true;
#else
HRESULT 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;
}
DWORD dwDSLockedBufferSize = 0; // Size of the locked DirectSound buffer
SHORT* pDSLockedBuffer;
hr = SSI263Voice.lpDSBvoice->Stop();
if(!DSGetLock(SSI263Voice.lpDSBvoice, 0, 0, &pDSLockedBuffer, &dwDSLockedBufferSize, NULL, 0))
return;
unsigned int nPhonemeShortLength = g_nPhonemeInfo[nPhoneme].nLength;
unsigned int nPhonemeByteLength = g_nPhonemeInfo[nPhoneme].nLength * sizeof(SHORT);
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
hr = SSI263Voice.lpDSBvoice->Unlock((void*)pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0);
if(FAILED(hr))
return;
hr = SSI263Voice.lpDSBvoice->Play(0,0,0); // Not looping
if(FAILED(hr))
return;
SSI263Voice.bActive = true;
#endif
}
//-----------------------------------------------------------------------------
static bool MB_DSInit()
{
LogFileOutput("MB_DSInit\n", g_bMBAvailable);
#ifdef NO_DIRECT_X
return false;
#else // NO_DIRECT_X
//
// Create single Mockingboard voice
//
DWORD dwDSLockedBufferSize = 0; // Size of the locked DirectSound buffer
SHORT* pDSLockedBuffer;
if(!g_bDSAvailable)
return false;
HRESULT hr = DSGetSoundBuffer(&MockingboardVoice, DSBCAPS_CTRLVOLUME, g_dwDSBufferSize, SAMPLE_RATE, 2);
LogFileOutput("MB_DSInit: DSGetSoundBuffer(), hr=0x%08X\n", hr);
if(FAILED(hr))
{
if(g_fh) fprintf(g_fh, "MB: DSGetSoundBuffer failed (%08X)\n",hr);
return false;
}
bool bRes = DSZeroVoiceBuffer(&MockingboardVoice, "MB", g_dwDSBufferSize);
LogFileOutput("MB_DSInit: DSZeroVoiceBuffer(), res=%d\n", bRes ? 1 : 0);
if (!bRes)
return false;
MockingboardVoice.bActive = true;
// Volume might've been setup from value in Registry
if(!MockingboardVoice.nVolume)
MockingboardVoice.nVolume = DSBVOLUME_MAX;
hr = MockingboardVoice.lpDSBvoice->SetVolume(MockingboardVoice.nVolume);
LogFileOutput("MB_DSInit: SetVolume(), hr=0x%08X\n", hr);
//---------------------------------
//
// Create SSI263 voice
//
#if 0
g_dwMaxPhonemeLen = 0;
for(int i=0; i<sizeof(g_nPhonemeInfo) / sizeof(PHONEME_INFO); i++)
if(g_dwMaxPhonemeLen < g_nPhonemeInfo[i].nLength)
g_dwMaxPhonemeLen = g_nPhonemeInfo[i].nLength;
g_dwMaxPhonemeLen *= sizeof(SHORT);
#endif
g_hSSI263Event[0] = CreateEvent(NULL, // lpEventAttributes
FALSE, // bManualReset (FALSE = auto-reset)
FALSE, // bInitialState (FALSE = non-signaled)
NULL); // lpName
LogFileOutput("MB_DSInit: CreateEvent(), g_hSSI263Event[0]=0x%08X\n", g_hSSI263Event[0]);
g_hSSI263Event[1] = CreateEvent(NULL, // lpEventAttributes
FALSE, // bManualReset (FALSE = auto-reset)
FALSE, // bInitialState (FALSE = non-signaled)
NULL); // lpName
LogFileOutput("MB_DSInit: CreateEvent(), g_hSSI263Event[1]=0x%08X\n", g_hSSI263Event[1]);
if((g_hSSI263Event[0] == NULL) || (g_hSSI263Event[1] == NULL))
{
if(g_fh) fprintf(g_fh, "SSI263: CreateEvent failed\n");
return false;
}
for(int i=0; i<64; i++)
{
unsigned int nPhoneme = i;
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 int nPhonemeByteLength = g_nPhonemeInfo[nPhoneme].nLength * sizeof(SHORT);
// NB. DSBCAPS_LOCSOFTWARE required for Phoneme+2==0x28 - sample too short (see KB327698)
hr = DSGetSoundBuffer(&SSI263Voice[i], DSBCAPS_CTRLVOLUME+DSBCAPS_CTRLPOSITIONNOTIFY+DSBCAPS_LOCSOFTWARE, nPhonemeByteLength, 22050, 1);
LogFileOutput("MB_DSInit: (%02d) DSGetSoundBuffer(), hr=0x%08X\n", i, hr);
if(FAILED(hr))
{
if(g_fh) fprintf(g_fh, "SSI263: DSGetSoundBuffer failed (%08X)\n",hr);
return false;
}
bRes = DSGetLock(SSI263Voice[i].lpDSBvoice, 0, 0, &pDSLockedBuffer, &dwDSLockedBufferSize, NULL, 0);
//LogFileOutput("MB_DSInit: (%02d) DSGetLock(), res=%d\n", i, bRes ? 1 : 0); // WARNING: Lock acquired && doing heavy-weight logging
if(FAILED(hr))
{
if(g_fh) fprintf(g_fh, "SSI263: DSGetLock failed (%08X)\n",hr);
return false;
}
if(bPause)
{
// 'pause' length is length of 1st phoneme (arbitrary choice, since don't know real length)
memset(pDSLockedBuffer, 0x00, nPhonemeByteLength);
}
else
{
memcpy(pDSLockedBuffer, &g_nPhonemeData[g_nPhonemeInfo[nPhoneme].nOffset], nPhonemeByteLength);
}
hr = SSI263Voice[i].lpDSBvoice->QueryInterface(IID_IDirectSoundNotify, (LPVOID *)&SSI263Voice[i].lpDSNotify);
//LogFileOutput("MB_DSInit: (%02d) QueryInterface(), hr=0x%08X\n", i, hr); // WARNING: Lock acquired && doing heavy-weight logging
if(FAILED(hr))
{
if(g_fh) fprintf(g_fh, "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);
//LogFileOutput("MB_DSInit: (%02d) SetNotificationPositions(), hr=0x%08X\n", i, hr); // WARNING: Lock acquired && doing heavy-weight logging
if(FAILED(hr))
{
if(g_fh) fprintf(g_fh, "SSI263: SetNotifyPos failed (%08X)\n",hr);
return false;
}
hr = SSI263Voice[i].lpDSBvoice->Unlock((void*)pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0);
LogFileOutput("MB_DSInit: (%02d) Unlock(),hr=0x%08X\n", i, hr);
if(FAILED(hr))
{
if(g_fh) fprintf(g_fh, "SSI263: DSUnlock failed (%08X)\n",hr);
return false;
}
SSI263Voice[i].bActive = false;
SSI263Voice[i].nVolume = MockingboardVoice.nVolume; // Use same volume as MB
hr = SSI263Voice[i].lpDSBvoice->SetVolume(SSI263Voice[i].nVolume);
LogFileOutput("MB_DSInit: (%02d) SetVolume(), hr=0x%08X\n", i, hr);
}
//
DWORD dwThreadId;
g_hThread = CreateThread(NULL, // lpThreadAttributes
0, // dwStackSize
SSI263Thread,
NULL, // lpParameter
0, // dwCreationFlags : 0 = Run immediately
&dwThreadId); // lpThreadId
LogFileOutput("MB_DSInit: CreateThread(), g_hThread=0x%08X\n", g_hThread);
BOOL bRes2 = SetThreadPriority(g_hThread, THREAD_PRIORITY_TIME_CRITICAL);
LogFileOutput("MB_DSInit: SetThreadPriority(), bRes=%d\n", bRes2 ? 1 : 0);
return true;
#endif // NO_DIRECT_X
}
static void MB_DSUninit()
{
if(g_hThread)
{
DWORD dwExitCode;
SetEvent(g_hSSI263Event[g_nNumEvents-1]); // Signal to thread that it should exit
do
{
if(GetExitCodeThread(g_hThread, &dwExitCode))
{
if(dwExitCode == STILL_ACTIVE)
Sleep(10);
else
break;
}
}
while(1);
CloseHandle(g_hThread);
g_hThread = NULL;
}
//
if(MockingboardVoice.lpDSBvoice && MockingboardVoice.bActive)
{
MockingboardVoice.lpDSBvoice->Stop();
MockingboardVoice.bActive = false;
}
DSReleaseSoundBuffer(&MockingboardVoice);
//
for(int i=0; i<64; i++)
{
if(SSI263Voice[i].lpDSBvoice && SSI263Voice[i].bActive)
{
SSI263Voice[i].lpDSBvoice->Stop();
SSI263Voice[i].bActive = false;
}
DSReleaseSoundBuffer(&SSI263Voice[i]);
}
//
if(g_hSSI263Event[0])
{
CloseHandle(g_hSSI263Event[0]);
g_hSSI263Event[0] = NULL;
}
if(g_hSSI263Event[1])
{
CloseHandle(g_hSSI263Event[1]);
g_hSSI263Event[1] = NULL;
}
}
//=============================================================================
//
// ----- ALL GLOBALLY ACCESSIBLE FUNCTIONS ARE BELOW THIS LINE -----
//
//=============================================================================
static void InitSoundcardType(void)
{
g_SoundcardType = CT_Empty; // Use CT_Empty to mean: no soundcard
g_bPhasorEnable = false;
}
void MB_Initialize()
{
InitSoundcardType();
LogFileOutput("MB_Initialize: g_bDisableDirectSound=%d, g_bDisableDirectSoundMockingboard=%d\n", g_bDisableDirectSound, g_bDisableDirectSoundMockingboard);
if (g_bDisableDirectSound || g_bDisableDirectSoundMockingboard)
{
MockingboardVoice.bMute = true;
}
else
{
memset(&g_MB,0,sizeof(g_MB));
int i;
for(i=0; i<NUM_VOICES; i++)
ppAYVoiceBuffer[i] = new short [SAMPLE_RATE]; // Buffer can hold a max of 1 seconds worth of samples
AY8910_InitAll((int)g_fCurrentCLK6502, SAMPLE_RATE);
LogFileOutput("MB_Initialize: AY8910_InitAll()\n");
for(i=0; i<NUM_AY8910; i++)
g_MB[i].nAY8910Number = i;
//
g_bMBAvailable = MB_DSInit();
LogFileOutput("MB_Initialize: MB_DSInit(), g_bMBAvailable=%d\n", g_bMBAvailable);
MB_Reset();
LogFileOutput("MB_Initialize: MB_Reset()\n");
}
InitializeCriticalSection(&g_CriticalSection);
g_bCritSectionValid = true;
for (int id=0; id<kNumSyncEvents; id++)
{
g_syncEvent[id] = new SyncEvent(id, 0, MB_SyncEventCallback);
}
}
static void MB_SetSoundcardType(SS_CARDTYPE NewSoundcardType);
// NB. Mockingboard voice is *already* muted because showing 'Select Load State file' dialog
// . and voice will be demuted when dialog is closed
void MB_InitializeForLoadingSnapshot() // GH#609
{
MB_Reset();
InitSoundcardType();
if (g_bDisableDirectSound || g_bDisableDirectSoundMockingboard)
return;
_ASSERT(MockingboardVoice.lpDSBvoice);
MockingboardVoice.lpDSBvoice->Stop(); // Reason: 'MB voice is playing' then loading a save-state where 'no MB present'
}
//-----------------------------------------------------------------------------
// NB. Called when /g_fCurrentCLK6502/ changes
void MB_Reinitialize()
{
AY8910_InitClock((int)g_fCurrentCLK6502); // todo: account for g_PhasorClockScaleFactor?
// NB. Other calls to AY8910_InitClock() use the constant CLK_6502
}
//-----------------------------------------------------------------------------
void MB_Destroy()
{
MB_DSUninit();
for (int i=0; i<NUM_VOICES; i++)
delete [] ppAYVoiceBuffer[i];
if (g_bCritSectionValid)
{
DeleteCriticalSection(&g_CriticalSection);
g_bCritSectionValid = false;
}
for (int id=0; id<kNumSyncEvents; id++)
{
delete g_syncEvent[id];
g_syncEvent[id] = NULL;
}
}
//-----------------------------------------------------------------------------
static void ResetState()
{
g_nMBTimerDevice = kTIMERDEVICE_INVALID;
MB_SetCumulativeCycles();
g_nSSI263Device = 0;
g_nCurrentActivePhoneme = -1;
g_bStopPhoneme = false;
g_bVotraxPhoneme = false;
g_nMB_InActiveCycleCount = 0;
g_bMB_RegAccessedFlag = false;
g_bMB_Active = false;
g_phasorMode = PH_Mockingboard;
g_PhasorClockScaleFactor = 1;
g_uLastMBUpdateCycle = 0;
g_cyclesThisAudioFrame = 0;
for (int id = 0; id < kNumSyncEvents; id++)
{
if (g_syncEvent[id] && g_syncEvent[id]->m_active)
g_SynchronousEventMgr.Remove(id);
}
// Not these, as they don't change on a CTRL+RESET or power-cycle:
// g_bMBAvailable = false;
// g_SoundcardType = CT_Empty; // Don't uncomment, else _ASSERT will fire in MB_Read() after an F2->MB_Reset()
// g_bPhasorEnable = false;
}
void MB_Reset() // CTRL+RESET or power-cycle
{
if(!g_bDSAvailable)
return;
for(int i=0; i<NUM_AY8910; i++)
{
ResetSY6522(&g_MB[i]);
AY8910_reset(i);
}
ResetState();
MB_Reinitialize(); // Reset CLK for AY8910s
}
//-----------------------------------------------------------------------------
// Echo+ mode - Phasor's 2nd 6522 is mapped to every 16-byte offset in $Cnxx (Echo+ has a single 6522 controlling two AY-3-8913's)
static BYTE __stdcall MB_Read(WORD PC, WORD nAddr, BYTE bWrite, BYTE nValue, ULONG nExecutedCycles)
{
MB_UpdateCycles(nExecutedCycles);
#ifdef _DEBUG
if(!IS_APPLE2 && MemCheckINTCXROM())
{
_ASSERT(0); // Card ROM disabled, so IO_Cxxx() returns the internal ROM
return mem[nAddr];
}
if(g_SoundcardType == CT_Empty)
{
_ASSERT(0); // Card unplugged, so IO_Cxxx() returns the floating bus
return MemReadFloatingBus(nExecutedCycles);
}
#endif
BYTE nMB = (nAddr>>8)&0xf - SLOT4;
BYTE nOffset = nAddr&0xff;
if(g_bPhasorEnable)
{
if(nMB != 0) // Slot4 only
return MemReadFloatingBus(nExecutedCycles);
int CS = 0;
if (g_phasorMode == PH_Mockingboard)
CS = ( ( nAddr & 0x80 ) >> 7 ) + 1; // 1 or 2
else if (g_phasorMode == PH_Phasor)
CS = ( ( nAddr & 0x80 ) >> 6 ) | ( ( nAddr & 0x10 ) >> 4 ); // 0, 1, 2 or 3
else if (g_phasorMode == PH_EchoPlus)
CS = 2;
BYTE 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 ((g_phasorMode == PH_Phasor) && ((nAddr & 0xD0) == 0x40)) // $Cn4x and $Cn6x (Mockingboard mode: SSI263.bit7 not readable)
{
_ASSERT(!bAccessedDevice);
nRes = SSI263_Read(nMB*2+1, nExecutedCycles); // SSI263 only drives bit7
bAccessedDevice = true;
}
return bAccessedDevice ? nRes : MemReadFloatingBus(nExecutedCycles);
}
// NB. Mockingboard: SSI263.bit7 not readable (TODO: check this with real h/w)
if (nOffset < SY6522B_Offset)
return SY6522_Read(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_A, nAddr&0xf);
else
return SY6522_Read(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_B, nAddr&0xf);
}
//-----------------------------------------------------------------------------
static BYTE __stdcall MB_Write(WORD PC, WORD nAddr, BYTE bWrite, BYTE nValue, ULONG nExecutedCycles)
{
MB_UpdateCycles(nExecutedCycles);
#ifdef _DEBUG
if(!IS_APPLE2 && MemCheckINTCXROM())
{
_ASSERT(0); // Card ROM disabled, so IO_Cxxx() returns the internal ROM
return 0;
}
if(g_SoundcardType == CT_Empty)
{
_ASSERT(0); // Card unplugged, so IO_Cxxx() returns the floating bus
return 0;
}
#endif
// Support 6502/65C02 false-reads of 6522 (GH#52)
if ( ((mem[(PC-2)&0xffff] == 0x91) && GetMainCpu() == CPU_6502) || // sta (zp),y - 6502 only (no-PX variant only) (UTAIIe:4-23)
(mem[(PC-3)&0xffff] == 0x99) || // sta abs16,y - 6502/65C02, but for 65C02 only the no-PX variant that does the false-read (UTAIIe:4-27)
(mem[(PC-3)&0xffff] == 0x9D) ) // sta abs16,x - 6502/65C02, but for 65C02 only the no-PX variant that does the false-read (UTAIIe:4-27)
{
WORD base;
WORD addr16;
if (mem[(PC-2)&0xffff] == 0x91)
{
BYTE zp = mem[(PC-1)&0xffff];
base = (mem[zp] | (mem[(zp+1)&0xff]<<8));
addr16 = base + regs.y;
}
else
{
base = mem[(PC-2)&0xffff] | (mem[(PC-1)&0xffff]<<8);
addr16 = base + ((mem[(PC-3)&0xffff] == 0x99) ? regs.y : regs.x);
}
if (((base ^ addr16) >> 8) == 0) // Only the no-PX variant does the false read (to the same I/O SELECT page)
{
_ASSERT(addr16 == nAddr);
if (addr16 == nAddr) // Check we've reverse looked-up the 6502 opcode correctly
{
if ( ((nAddr&0xf) == 4) || ((nAddr&0xf) == 8) ) // Only reading 6522 reg-4 or reg-8 actually has an effect
MB_Read(PC, nAddr, 0, 0, nExecutedCycles);
}
}
}
BYTE nMB = ((nAddr>>8)&0xf) - SLOT4;
BYTE nOffset = nAddr&0xff;
if(g_bPhasorEnable)
{
if(nMB != 0) // Slot4 only
return 0;
int CS;
if (g_phasorMode == PH_Mockingboard)
CS = ( ( nAddr & 0x80 ) >> 7 ) + 1; // 1 or 2
else if (g_phasorMode == PH_Phasor)
CS = ( ( nAddr & 0x80 ) >> 6 ) | ( ( nAddr & 0x10 ) >> 4 ); // 0, 1, 2 or 3
else if (g_phasorMode == PH_EchoPlus)
CS = 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);
int CS_SSI263 = (g_phasorMode == PH_Mockingboard) ? (nAddr & 0xE0) == 0x40 // Mockingboard: $Cn4x
: (g_phasorMode == PH_Phasor) ? (nAddr & 0xC0) == 0x40 // Phasor: $Cn4x and $Cn6x
: 0; // Echo+
if (CS_SSI263)
{
// NB. Mockingboard mode: writes to $Cn4x/SSI263 also get written to 1st 6522 (have confirmed on real Phasor h/w)
_ASSERT( (g_phasorMode == PH_Mockingboard && (CS==0 || CS==1)) || (g_phasorMode == PH_Phasor && (CS==0)) );
SSI263_Write(nMB*2+1, nAddr&0x7, nValue); // Second 6522 is used for speech chip
}
return 0;
}
if (nOffset < SY6522B_Offset)
SY6522_Write(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_A, nAddr&0xf, nValue);
else
SY6522_Write(nMB*NUM_DEVS_PER_MB + SY6522_DEVICE_B, nAddr&0xf, nValue);
if ((nOffset >= SSI263_Offset) && (nOffset <= (SSI263_Offset+0x07)))
SSI263_Write(nMB*2+1, nAddr&0x7, nValue); // Second 6522 is used for speech chip -- TODO confirm with real MB h/w that writes go to 1st 6522
return 0;
}
//-----------------------------------------------------------------------------
// Phasor's DEVICE SELECT' logic:
// . if addr.[b3]==1, then clear the card's mode bits b2:b0
// . if any of addr.[b2:b0] are a logic 1, then set these bits in the card's mode
//
// Example DEVICE SELECT' accesses for Phasor in slot-4: (from empirical observations on real Phasor h/w)
// 1)
// . RESET -> Mockingboard mode (b#000)
// . $C0C5 -> Phasor mode (b#101)
// 2)
// . RESET -> Mockingboard mode (b#000)
// . $C0C1, then $C0C4 (or $C0C4, then $C0C1) -> Phasor mode (b#101)
// . $C0C2 -> Echo+ mode (b#111)
// . $C0C5 -> remaing in Echo+ mode (b#111)
// So $C0C5 seemingly results in 2 different modes.
//
static BYTE __stdcall PhasorIO(WORD PC, WORD nAddr, BYTE bWrite, BYTE nValue, ULONG nExecutedCycles)
{
if (!g_bPhasorEnable)
return MemReadFloatingBus(nExecutedCycles);
UINT bits = (UINT) g_phasorMode;
if (nAddr & 8)
bits = 0;
bits |= (nAddr & 7);
g_phasorMode = (PHASOR_MODE) bits;
if (g_phasorMode == PH_Mockingboard || g_phasorMode == PH_EchoPlus)
g_PhasorClockScaleFactor = 1;
else if (g_phasorMode == PH_Phasor)
g_PhasorClockScaleFactor = 2;
AY8910_InitClock((int)(Get6502BaseClock() * g_PhasorClockScaleFactor));
return MemReadFloatingBus(nExecutedCycles);
}
//-----------------------------------------------------------------------------
SS_CARDTYPE MB_GetSoundcardType()
{
return g_SoundcardType;
}
static void MB_SetSoundcardType(const SS_CARDTYPE NewSoundcardType)
{
if (NewSoundcardType == g_SoundcardType)
return;
if (NewSoundcardType == CT_Empty)
MB_Mute(); // Call MB_Mute() before setting g_SoundcardType = CT_Empty
g_SoundcardType = NewSoundcardType;
g_bPhasorEnable = (g_SoundcardType == CT_Phasor);
}
//-----------------------------------------------------------------------------
void MB_InitializeIO(LPBYTE pCxRomPeripheral, UINT uSlot4, UINT uSlot5)
{
// Mockingboard: Slot 4 & 5
// Phasor : Slot 4
// <other> : Slot 4 & 5
if (GetCardMgr().QuerySlot(SLOT4) != CT_MockingboardC && GetCardMgr().QuerySlot(SLOT4) != CT_Phasor)
{
MB_SetSoundcardType(CT_Empty);
return;
}
if (GetCardMgr().QuerySlot(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 (GetCardMgr().QuerySlot(SLOT5) == CT_MockingboardC)
RegisterIoHandler(uSlot5, IO_Null, IO_Null, MB_Read, MB_Write, NULL, NULL);
MB_SetSoundcardType(GetCardMgr().QuerySlot(SLOT4));
if (g_bDisableDirectSound || g_bDisableDirectSoundMockingboard)
return;
// Sound buffer may have been stopped by MB_InitializeForLoadingSnapshot().
// NB. DSZeroVoiceBuffer() also zeros the sound buffer, so it's better than directly calling IDirectSoundBuffer::Play():
// - without zeroing, then the previous sound buffer can be heard for a fraction of a second
// - eg. when doing Mockingboard playback, then loading a save-state which is also doing Mockingboard playback
DSZeroVoiceBuffer(&MockingboardVoice, "MB", g_dwDSBufferSize);
}
//-----------------------------------------------------------------------------
void MB_Mute()
{
if(g_SoundcardType == CT_Empty)
return;
if(MockingboardVoice.bActive && !MockingboardVoice.bMute)
{
MockingboardVoice.lpDSBvoice->SetVolume(DSBVOLUME_MIN);
MockingboardVoice.bMute = true;
}
if(g_nCurrentActivePhoneme >= 0)
SSI263Voice[g_nCurrentActivePhoneme].lpDSBvoice->SetVolume(DSBVOLUME_MIN);
}
//-----------------------------------------------------------------------------
void MB_Demute()
{
if(g_SoundcardType == CT_Empty)
return;
if(MockingboardVoice.bActive && MockingboardVoice.bMute)
{
MockingboardVoice.lpDSBvoice->SetVolume(MockingboardVoice.nVolume);
MockingboardVoice.bMute = false;
}
if(g_nCurrentActivePhoneme >= 0)
SSI263Voice[g_nCurrentActivePhoneme].lpDSBvoice->SetVolume(SSI263Voice[g_nCurrentActivePhoneme].nVolume);
}
//-----------------------------------------------------------------------------
#ifdef _DEBUG
void MB_CheckCumulativeCycles()
{
if (g_SoundcardType == CT_Empty)
return;
_ASSERT(g_uLastCumulativeCycles == g_nCumulativeCycles);
g_uLastCumulativeCycles = g_nCumulativeCycles;
}
#endif
// Called by: ResetState() and Snapshot_LoadState_v2()
void MB_SetCumulativeCycles()
{
g_uLastCumulativeCycles = g_nCumulativeCycles;
}
// Called by ContinueExecution() at the end of every execution period (~1000 cycles or ~3 cycle when MODE_STEPPING)
// NB. Required for FT's TEST LAB #1 player
void MB_PeriodicUpdate(UINT executedCycles)
{
if (g_SoundcardType == CT_Empty)
return;
if (g_nMBTimerDevice != kTIMERDEVICE_INVALID)
return;
const UINT kCyclesPerAudioFrame = 1000;
g_cyclesThisAudioFrame += executedCycles;
if (g_cyclesThisAudioFrame < kCyclesPerAudioFrame)
return;
g_cyclesThisAudioFrame %= kCyclesPerAudioFrame;
MB_Update();
}
//-----------------------------------------------------------------------------
static bool CheckTimerUnderflow(USHORT& timerCounter, int& timerIrqDelay, const USHORT nClocks)
{
if (nClocks == 0)
return false;
int oldTimer = timerCounter;
int timer = timerCounter;
timer -= nClocks;
timerCounter = (USHORT)timer;
bool timerIrq = false;
if (timerIrqDelay) // Deal with any previous counter underflow which didn't yet result in an IRQ
{
_ASSERT(timerIrqDelay == 1);
timerIrqDelay = 0;
timerIrq = true;
// if LATCH is very small then could underflow for every opcode...
}
if (oldTimer >= 0 && timer < 0) // Underflow occurs for 0x0000 -> 0xFFFF
{
if (timer <= -2) // TIMER = 0xFFFE (or less)
timerIrq = true;
else // TIMER = 0xFFFF
timerIrqDelay = 1; // ...so 1 cycle until IRQ
}
return timerIrq;
}
// Called by:
// . CpuExecute() every ~1000 cycles @ 1MHz
// . MB_SyncEventCallback() on a TIMER1/2 underflow
// . MB_Read() / MB_Write() (for both normal & full-speed)
void MB_UpdateCycles(ULONG uExecutedCycles)
{
if (g_SoundcardType == CT_Empty)
return;
CpuCalcCycles(uExecutedCycles);
UINT64 uCycles = g_nCumulativeCycles - g_uLastCumulativeCycles;
_ASSERT(uCycles >= 0);
if (uCycles == 0)
return;
g_uLastCumulativeCycles = g_nCumulativeCycles;
_ASSERT(uCycles < 0x10000 || g_nAppMode == MODE_BENCHMARK);
USHORT nClocks = (USHORT)uCycles;
for (int i = 0; i < NUM_SY6522; i++)
{
SY6522_AY8910* pMB = &g_MB[i];
const bool bTimer1Underflow = CheckTimerUnderflow(pMB->sy6522.TIMER1_COUNTER.w, pMB->sy6522.timer1IrqDelay, nClocks);
const bool bTimer2Underflow = CheckTimerUnderflow(pMB->sy6522.TIMER2_COUNTER.w, pMB->sy6522.timer2IrqDelay, nClocks);
if (pMB->bTimer1Active && bTimer1Underflow)
{
pMB->sy6522.TIMER1_COUNTER.w += pMB->sy6522.TIMER1_LATCH.w; // GH#651: account for underflowed cycles too
pMB->sy6522.TIMER1_COUNTER.w += kExtraTimerCycles; // GH#652: account for extra 2 cycles
// EG. T1C=0xFFFE, T1L=0x0001
// . T1C += T1L = 0xFFFF
// . T1C += 2 = 0x0001
if (pMB->sy6522.TIMER1_COUNTER.w > pMB->sy6522.TIMER1_LATCH.w)
{
if (pMB->sy6522.TIMER1_LATCH.w)
pMB->sy6522.TIMER1_COUNTER.w %= pMB->sy6522.TIMER1_LATCH.w; // Only occurs if LATCH.w<0x0007 (# cycles for longest opcode)
else
pMB->sy6522.TIMER1_COUNTER.w = 0;
}
}
}
}
//-----------------------------------------------------------------------------
static int MB_SyncEventCallback(int id, int /*cycles*/, ULONG uExecutedCycles)
{
SY6522_AY8910* pMB = &g_MB[id / kNumTimersPer6522];
if ((id & 1) == 0)
{
_ASSERT(pMB->bTimer1Active);
MB_Update();
UpdateIFR(pMB, 0, IxR_TIMER1);
if ((pMB->sy6522.ACR & RUNMODE) == RM_ONESHOT)
{
// One-shot mode
// - Phasor's playback code uses one-shot mode
StopTimer1(pMB);
return 0; // Don't repeat event
}
MB_UpdateCycles(uExecutedCycles);
StartTimer1(pMB);
return pMB->sy6522.TIMER1_COUNTER.w + kExtraTimerCycles;
}
else
{
_ASSERT(pMB->bTimer2Active);
UpdateIFR(pMB, 0, IxR_TIMER2);
StopTimer2(pMB); // TIMER2 only runs in one-shot mode
return 0; // Don't repeat event
}
}
//-----------------------------------------------------------------------------
bool MB_IsActive()
{
if (!MockingboardVoice.bActive)
return false;
return g_bMB_Active;
}
//-----------------------------------------------------------------------------
DWORD MB_GetVolume()
{
return MockingboardVoice.dwUserVolume;
}
void MB_SetVolume(DWORD dwVolume, DWORD dwVolumeMax)
{
MockingboardVoice.dwUserVolume = dwVolume;
MockingboardVoice.nVolume = NewVolume(dwVolume, dwVolumeMax);
if (MockingboardVoice.bActive && !MockingboardVoice.bMute)
MockingboardVoice.lpDSBvoice->SetVolume(MockingboardVoice.nVolume);
}
//===========================================================================
// Called by debugger - Debugger_Display.cpp
void MB_GetSnapshot_v1(SS_CARD_MOCKINGBOARD_v1* const pSS, const DWORD dwSlot)
{
pSS->Hdr.UnitHdr.hdr.v2.Length = sizeof(SS_CARD_MOCKINGBOARD_v1);
pSS->Hdr.UnitHdr.hdr.v2.Type = UT_Card;
pSS->Hdr.UnitHdr.hdr.v2.Version = 1;
pSS->Hdr.Slot = dwSlot;
pSS->Hdr.Type = CT_MockingboardC;
UINT nMbCardNum = dwSlot - SLOT4;
UINT nDeviceNum = nMbCardNum*2;
SY6522_AY8910* pMB = &g_MB[nDeviceNum];
for(UINT i=0; i<MB_UNITS_PER_CARD_v1; i++)
{
memcpy(&pSS->Unit[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;
pSS->Unit[i].bTimer1IrqPending = false;
pSS->Unit[i].bTimer2IrqPending = false;
pSS->Unit[i].bSpeechIrqPending = false;
nDeviceNum++;
pMB++;
}
}
//===========================================================================
// Unit version history:
// 2: Added: Timer1 & Timer2 active
// 3: Added: Unit state - GH#320
// 4: Added: 6522 timerIrqDelay - GH#652
// 5: Added: Unit state-B (Phasor only) - GH#659
// 6: Changed SS_YAML_KEY_PHASOR_MODE from (0,1) to (0,5,7)
// Added SS_YAML_KEY_VOTRAX_PHONEME
// Removed: redundant SS_YAML_KEY_PHASOR_CLOCK_SCALE_FACTOR
const UINT kUNIT_VERSION = 6;
const UINT NUM_MB_UNITS = 2;
const UINT NUM_PHASOR_UNITS = 2;
#define SS_YAML_KEY_MB_UNIT "Unit"
#define SS_YAML_KEY_SY6522 "SY6522"
#define SS_YAML_KEY_SY6522_REG_ORB "ORB"
#define SS_YAML_KEY_SY6522_REG_ORA "ORA"
#define SS_YAML_KEY_SY6522_REG_DDRB "DDRB"
#define SS_YAML_KEY_SY6522_REG_DDRA "DDRA"
#define SS_YAML_KEY_SY6522_REG_T1_COUNTER "Timer1 Counter"
#define SS_YAML_KEY_SY6522_REG_T1_LATCH "Timer1 Latch"
#define SS_YAML_KEY_SY6522_REG_T2_COUNTER "Timer2 Counter"
#define SS_YAML_KEY_SY6522_REG_T2_LATCH "Timer2 Latch"
#define SS_YAML_KEY_SY6522_REG_SERIAL_SHIFT "Serial Shift"
#define SS_YAML_KEY_SY6522_REG_ACR "ACR"
#define SS_YAML_KEY_SY6522_REG_PCR "PCR"
#define SS_YAML_KEY_SY6522_REG_IFR "IFR"
#define SS_YAML_KEY_SY6522_REG_IER "IER"
#define SS_YAML_KEY_SSI263 "SSI263"
#define SS_YAML_KEY_SSI263_REG_DUR_PHON "Duration / Phoneme"
#define SS_YAML_KEY_SSI263_REG_INF "Inflection"
#define SS_YAML_KEY_SSI263_REG_RATE_INF "Rate / Inflection"
#define SS_YAML_KEY_SSI263_REG_CTRL_ART_AMP "Control / Articulation / Amplitude"
#define SS_YAML_KEY_SSI263_REG_FILTER_FREQ "Filter Frequency"
#define SS_YAML_KEY_SSI263_REG_CURRENT_MODE "Current Mode"
#define SS_YAML_KEY_AY_CURR_REG "AY Current Register"
#define SS_YAML_KEY_MB_UNIT_STATE "Unit State"
#define SS_YAML_KEY_MB_UNIT_STATE_B "Unit State-B" // Phasor only
#define SS_YAML_KEY_TIMER1_IRQ "Timer1 IRQ Pending"
#define SS_YAML_KEY_TIMER2_IRQ "Timer2 IRQ Pending"
#define SS_YAML_KEY_SPEECH_IRQ "Speech IRQ Pending"
#define SS_YAML_KEY_TIMER1_ACTIVE "Timer1 Active"
#define SS_YAML_KEY_TIMER2_ACTIVE "Timer2 Active"
#define SS_YAML_KEY_SY6522_TIMER1_IRQ_DELAY "Timer1 IRQ Delay"
#define SS_YAML_KEY_SY6522_TIMER2_IRQ_DELAY "Timer2 IRQ Delay"
#define SS_YAML_KEY_PHASOR_UNIT "Unit"
#define SS_YAML_KEY_PHASOR_CLOCK_SCALE_FACTOR "Clock Scale Factor" // Redundant from v6
#define SS_YAML_KEY_PHASOR_MODE "Mode"
#define SS_YAML_KEY_VOTRAX_PHONEME "Votrax Phoneme"
std::string MB_GetSnapshotCardName(void)
{
static const std::string name("Mockingboard C");
return name;
}
std::string Phasor_GetSnapshotCardName(void)
{
static const std::string name("Phasor");
return name;
}
static void SaveSnapshotSY6522(YamlSaveHelper& yamlSaveHelper, SY6522& sy6522)
{
YamlSaveHelper::Label label(yamlSaveHelper, "%s:\n", SS_YAML_KEY_SY6522);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_ORB, sy6522.ORB);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_ORA, sy6522.ORA);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_DDRB, sy6522.DDRB);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_DDRA, sy6522.DDRA);
yamlSaveHelper.SaveHexUint16(SS_YAML_KEY_SY6522_REG_T1_COUNTER, sy6522.TIMER1_COUNTER.w);
yamlSaveHelper.SaveHexUint16(SS_YAML_KEY_SY6522_REG_T1_LATCH, sy6522.TIMER1_LATCH.w);
yamlSaveHelper.SaveUint(SS_YAML_KEY_SY6522_TIMER1_IRQ_DELAY, sy6522.timer1IrqDelay); // v4
yamlSaveHelper.SaveHexUint16(SS_YAML_KEY_SY6522_REG_T2_COUNTER, sy6522.TIMER2_COUNTER.w);
yamlSaveHelper.SaveHexUint16(SS_YAML_KEY_SY6522_REG_T2_LATCH, sy6522.TIMER2_LATCH.w);
yamlSaveHelper.SaveUint(SS_YAML_KEY_SY6522_TIMER2_IRQ_DELAY, sy6522.timer2IrqDelay); // v4
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_SERIAL_SHIFT, sy6522.SERIAL_SHIFT);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_ACR, sy6522.ACR);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_PCR, sy6522.PCR);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_IFR, sy6522.IFR);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SY6522_REG_IER, sy6522.IER);
// NB. No need to write ORA_NO_HS, since same data as ORA, just without handshake
}
static void SaveSnapshotSSI263(YamlSaveHelper& yamlSaveHelper, SSI263A& ssi263)
{
YamlSaveHelper::Label label(yamlSaveHelper, "%s:\n", SS_YAML_KEY_SSI263);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SSI263_REG_DUR_PHON, ssi263.DurationPhoneme);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SSI263_REG_INF, ssi263.Inflection);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SSI263_REG_RATE_INF, ssi263.RateInflection);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SSI263_REG_CTRL_ART_AMP, ssi263.CtrlArtAmp);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SSI263_REG_FILTER_FREQ, ssi263.FilterFreq);
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_SSI263_REG_CURRENT_MODE, ssi263.CurrentMode);
}
void MB_SaveSnapshot(YamlSaveHelper& yamlSaveHelper, const UINT uSlot)
{
const UINT nMbCardNum = uSlot - SLOT4;
UINT nDeviceNum = nMbCardNum*2;
SY6522_AY8910* pMB = &g_MB[nDeviceNum];
YamlSaveHelper::Slot slot(yamlSaveHelper, MB_GetSnapshotCardName(), uSlot, kUNIT_VERSION); // fixme: object should be just 1 Mockingboard card & it will know its slot
YamlSaveHelper::Label state(yamlSaveHelper, "%s:\n", SS_YAML_KEY_STATE);
yamlSaveHelper.SaveBool(SS_YAML_KEY_VOTRAX_PHONEME, g_bVotraxPhoneme);
for(UINT i=0; i<NUM_MB_UNITS; i++)
{
YamlSaveHelper::Label unit(yamlSaveHelper, "%s%d:\n", SS_YAML_KEY_MB_UNIT, i);
SaveSnapshotSY6522(yamlSaveHelper, pMB->sy6522);
AY8910_SaveSnapshot(yamlSaveHelper, nDeviceNum, std::string(""));
SaveSnapshotSSI263(yamlSaveHelper, pMB->SpeechChip);
yamlSaveHelper.SaveHexUint4(SS_YAML_KEY_MB_UNIT_STATE, pMB->state);
yamlSaveHelper.SaveHexUint4(SS_YAML_KEY_AY_CURR_REG, pMB->nAYCurrentRegister);
yamlSaveHelper.Save("%s: %s # Not supported\n", SS_YAML_KEY_TIMER1_IRQ, "false");
yamlSaveHelper.Save("%s: %s # Not supported\n", SS_YAML_KEY_TIMER2_IRQ, "false");
yamlSaveHelper.Save("%s: %s # Not supported\n", SS_YAML_KEY_SPEECH_IRQ, "false");
yamlSaveHelper.SaveBool(SS_YAML_KEY_TIMER1_ACTIVE, pMB->bTimer1Active);
yamlSaveHelper.SaveBool(SS_YAML_KEY_TIMER2_ACTIVE, pMB->bTimer2Active);
nDeviceNum++;
pMB++;
}
}
static void LoadSnapshotSY6522(YamlLoadHelper& yamlLoadHelper, SY6522& sy6522, UINT version)
{
if (!yamlLoadHelper.GetSubMap(SS_YAML_KEY_SY6522))
throw std::string("Card: Expected key: ") + std::string(SS_YAML_KEY_SY6522);
sy6522.ORB = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_ORB);
sy6522.ORA = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_ORA);
sy6522.DDRB = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_DDRB);
sy6522.DDRA = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_DDRA);
sy6522.TIMER1_COUNTER.w = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_T1_COUNTER);
sy6522.TIMER1_LATCH.w = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_T1_LATCH);
sy6522.TIMER2_COUNTER.w = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_T2_COUNTER);
sy6522.TIMER2_LATCH.w = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_T2_LATCH);
sy6522.SERIAL_SHIFT = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_SERIAL_SHIFT);
sy6522.ACR = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_ACR);
sy6522.PCR = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_PCR);
sy6522.IFR = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_IFR);
sy6522.IER = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_REG_IER);
sy6522.ORA_NO_HS = 0; // Not saved
sy6522.timer1IrqDelay = sy6522.timer2IrqDelay = 0;
if (version >= 4)
{
sy6522.timer1IrqDelay = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_TIMER1_IRQ_DELAY);
sy6522.timer2IrqDelay = yamlLoadHelper.LoadUint(SS_YAML_KEY_SY6522_TIMER2_IRQ_DELAY);
}
yamlLoadHelper.PopMap();
}
static void LoadSnapshotSSI263(YamlLoadHelper& yamlLoadHelper, SSI263A& ssi263)
{
if (!yamlLoadHelper.GetSubMap(SS_YAML_KEY_SSI263))
throw std::string("Card: Expected key: ") + std::string(SS_YAML_KEY_SSI263);
ssi263.DurationPhoneme = yamlLoadHelper.LoadUint(SS_YAML_KEY_SSI263_REG_DUR_PHON);
ssi263.Inflection = yamlLoadHelper.LoadUint(SS_YAML_KEY_SSI263_REG_INF);
ssi263.RateInflection = yamlLoadHelper.LoadUint(SS_YAML_KEY_SSI263_REG_RATE_INF);
ssi263.CtrlArtAmp = yamlLoadHelper.LoadUint(SS_YAML_KEY_SSI263_REG_CTRL_ART_AMP);
ssi263.FilterFreq = yamlLoadHelper.LoadUint(SS_YAML_KEY_SSI263_REG_FILTER_FREQ);
ssi263.CurrentMode = yamlLoadHelper.LoadUint(SS_YAML_KEY_SSI263_REG_CURRENT_MODE);
yamlLoadHelper.PopMap();
}
bool MB_LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT slot, UINT version)
{
if (slot != 4 && slot != 5) // fixme
throw std::string("Card: wrong slot");
if (version < 1 || version > kUNIT_VERSION)
throw std::string("Card: wrong version");
g_bVotraxPhoneme = (version >= 6) ? yamlLoadHelper.LoadBool(SS_YAML_KEY_VOTRAX_PHONEME) : false;
AY8910UpdateSetCycles();
const UINT nMbCardNum = slot - SLOT4;
UINT nDeviceNum = nMbCardNum*2;
SY6522_AY8910* pMB = &g_MB[nDeviceNum];
g_nSSI263Device = 0;
g_nCurrentActivePhoneme = -1;
for(UINT i=0; i<NUM_MB_UNITS; i++)
{
char szNum[2] = {'0'+char(i),0};
std::string unit = std::string(SS_YAML_KEY_MB_UNIT) + std::string(szNum);
if (!yamlLoadHelper.GetSubMap(unit))
throw std::string("Card: Expected key: ") + std::string(unit);
LoadSnapshotSY6522(yamlLoadHelper, pMB->sy6522, version);
UpdateIFR(pMB, 0, pMB->sy6522.IFR); // Assert any pending IRQs (GH#677)
AY8910_LoadSnapshot(yamlLoadHelper, nDeviceNum, std::string(""));
LoadSnapshotSSI263(yamlLoadHelper, pMB->SpeechChip);
pMB->nAYCurrentRegister = yamlLoadHelper.LoadUint(SS_YAML_KEY_AY_CURR_REG);
yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER1_IRQ); // Consume
yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER2_IRQ); // Consume
yamlLoadHelper.LoadBool(SS_YAML_KEY_SPEECH_IRQ); // Consume
if (version >= 2)
{
pMB->bTimer1Active = yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER1_ACTIVE);
pMB->bTimer2Active = yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER2_ACTIVE);
}
pMB->state = AY_INACTIVE;
pMB->stateB = AY_INACTIVE;
if (version >= 3)
pMB->state = (MockingboardUnitState_e) (yamlLoadHelper.LoadUint(SS_YAML_KEY_MB_UNIT_STATE) & 7);
yamlLoadHelper.PopMap();
//
if (version == 1)
{
StartTimer1_LoadStateV1(pMB); // Attempt to start timer
}
else // version >= 2
{
if (pMB->bTimer1Active)
StartTimer1(pMB); // Attempt to start timer
}
if (pMB->bTimer1Active)
{
const UINT id = nDeviceNum*kNumTimersPer6522+0; // TIMER1
SyncEvent* pSyncEvent = g_syncEvent[id];
pSyncEvent->SetCycles(pMB->sy6522.TIMER1_COUNTER.w + kExtraTimerCycles); // NB. use COUNTER, not LATCH
g_SynchronousEventMgr.Insert(pSyncEvent);
}
if (pMB->bTimer2Active)
{
const UINT id = nDeviceNum*kNumTimersPer6522+1; // TIMER2
SyncEvent* pSyncEvent = g_syncEvent[id];
pSyncEvent->SetCycles(pMB->sy6522.TIMER2_COUNTER.w + kExtraTimerCycles); // NB. use COUNTER, not LATCH
g_SynchronousEventMgr.Insert(pSyncEvent);
}
// FIXME: currently only support a single speech chip
// NB. g_bVotraxPhoneme is never true, as the phoneme playback completes in SSI263Thread() before this point in the save-state.
// NB. SpeechChip.DurationPhoneme will mostly be non-zero during speech playback, as this is the SSI263 register, not whether the phonene is active.
// FIXME: So possible race-condition between saving-state & SSI263Thread()
if (pMB->SpeechChip.DurationPhoneme || g_bVotraxPhoneme)
{
g_nSSI263Device = nDeviceNum;
g_bPhasorEnable = false;
SetSpeechIRQ(pMB);
}
nDeviceNum++;
pMB++;
}
AY8910_InitClock((int)Get6502BaseClock());
// NB. g_SoundcardType & g_bPhasorEnable setup in MB_InitializeIO() -> MB_SetSoundcardType()
return true;
}
void Phasor_SaveSnapshot(YamlSaveHelper& yamlSaveHelper, const UINT uSlot)
{
if (uSlot != 4)
throw std::string("Card: Phasor only supported in slot-4");
UINT nDeviceNum = 0;
SY6522_AY8910* pMB = &g_MB[0]; // fixme: Phasor uses MB's slot4(2x6522), slot4(2xSSI263), but slot4+5(4xAY8910)
YamlSaveHelper::Slot slot(yamlSaveHelper, Phasor_GetSnapshotCardName(), uSlot, kUNIT_VERSION); // fixme: object should be just 1 Mockingboard card & it will know its slot
YamlSaveHelper::Label state(yamlSaveHelper, "%s:\n", SS_YAML_KEY_STATE);
yamlSaveHelper.SaveUint(SS_YAML_KEY_PHASOR_MODE, g_phasorMode);
yamlSaveHelper.SaveBool(SS_YAML_KEY_VOTRAX_PHONEME, g_bVotraxPhoneme);
for(UINT i=0; i<NUM_PHASOR_UNITS; i++)
{
YamlSaveHelper::Label unit(yamlSaveHelper, "%s%d:\n", SS_YAML_KEY_PHASOR_UNIT, i);
SaveSnapshotSY6522(yamlSaveHelper, pMB->sy6522);
AY8910_SaveSnapshot(yamlSaveHelper, nDeviceNum+0, std::string("-A"));
AY8910_SaveSnapshot(yamlSaveHelper, nDeviceNum+1, std::string("-B"));
SaveSnapshotSSI263(yamlSaveHelper, pMB->SpeechChip);
yamlSaveHelper.SaveHexUint4(SS_YAML_KEY_MB_UNIT_STATE, pMB->state);
yamlSaveHelper.SaveHexUint4(SS_YAML_KEY_MB_UNIT_STATE_B, pMB->stateB);
yamlSaveHelper.SaveHexUint4(SS_YAML_KEY_AY_CURR_REG, pMB->nAYCurrentRegister);
yamlSaveHelper.Save("%s: %s # Not supported\n", SS_YAML_KEY_TIMER1_IRQ, "false");
yamlSaveHelper.Save("%s: %s # Not supported\n", SS_YAML_KEY_TIMER2_IRQ, "false");
yamlSaveHelper.Save("%s: %s # Not supported\n", SS_YAML_KEY_SPEECH_IRQ, "false");
yamlSaveHelper.SaveBool(SS_YAML_KEY_TIMER1_ACTIVE, pMB->bTimer1Active);
yamlSaveHelper.SaveBool(SS_YAML_KEY_TIMER2_ACTIVE, pMB->bTimer2Active);
nDeviceNum += 2;
pMB++;
}
}
bool Phasor_LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT slot, UINT version)
{
if (slot != 4) // fixme
throw std::string("Card: wrong slot");
if (version < 1 || version > kUNIT_VERSION)
throw std::string("Card: wrong version");
if (version < 6)
yamlLoadHelper.LoadUint(SS_YAML_KEY_PHASOR_CLOCK_SCALE_FACTOR); // Consume redundant data
UINT phasorMode = yamlLoadHelper.LoadUint(SS_YAML_KEY_PHASOR_MODE);
if (version < 6)
{
if (phasorMode == 0)
phasorMode = PH_Mockingboard;
else
phasorMode = PH_Phasor;
}
g_phasorMode = (PHASOR_MODE) phasorMode;
g_PhasorClockScaleFactor = (g_phasorMode == PH_Phasor) ? 2 : 1;
g_bVotraxPhoneme = (version >= 6) ? yamlLoadHelper.LoadBool(SS_YAML_KEY_VOTRAX_PHONEME) : false;
AY8910UpdateSetCycles();
UINT nDeviceNum = 0;
SY6522_AY8910* pMB = &g_MB[0];
g_nSSI263Device = 0;
g_nCurrentActivePhoneme = -1;
for(UINT i=0; i<NUM_PHASOR_UNITS; i++)
{
char szNum[2] = {'0'+char(i),0};
std::string unit = std::string(SS_YAML_KEY_MB_UNIT) + std::string(szNum);
if (!yamlLoadHelper.GetSubMap(unit))
throw std::string("Card: Expected key: ") + std::string(unit);
LoadSnapshotSY6522(yamlLoadHelper, pMB->sy6522, version);
UpdateIFR(pMB, 0, pMB->sy6522.IFR); // Assert any pending IRQs (GH#677)
AY8910_LoadSnapshot(yamlLoadHelper, nDeviceNum+0, std::string("-A"));
AY8910_LoadSnapshot(yamlLoadHelper, nDeviceNum+1, std::string("-B"));
LoadSnapshotSSI263(yamlLoadHelper, pMB->SpeechChip);
pMB->nAYCurrentRegister = yamlLoadHelper.LoadUint(SS_YAML_KEY_AY_CURR_REG);
yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER1_IRQ); // Consume
yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER2_IRQ); // Consume
yamlLoadHelper.LoadBool(SS_YAML_KEY_SPEECH_IRQ); // Consume
if (version >= 2)
{
pMB->bTimer1Active = yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER1_ACTIVE);
pMB->bTimer2Active = yamlLoadHelper.LoadBool(SS_YAML_KEY_TIMER2_ACTIVE);
}
pMB->state = AY_INACTIVE;
pMB->stateB = AY_INACTIVE;
if (version >= 3)
pMB->state = (MockingboardUnitState_e) (yamlLoadHelper.LoadUint(SS_YAML_KEY_MB_UNIT_STATE) & 7);
if (version >= 5)
pMB->stateB = (MockingboardUnitState_e) (yamlLoadHelper.LoadUint(SS_YAML_KEY_MB_UNIT_STATE_B) & 7);
yamlLoadHelper.PopMap();
//
if (version == 1)
{
StartTimer1_LoadStateV1(pMB); // Attempt to start timer
}
else // version >= 2
{
if (pMB->bTimer1Active)
StartTimer1(pMB); // Attempt to start timer
}
if (pMB->bTimer1Active)
{
const UINT id = (nDeviceNum/2)*kNumTimersPer6522+0; // TIMER1
SyncEvent* pSyncEvent = g_syncEvent[id];
pSyncEvent->SetCycles(pMB->sy6522.TIMER1_COUNTER.w + kExtraTimerCycles); // NB. use COUNTER, not LATCH
g_SynchronousEventMgr.Insert(pSyncEvent);
}
if (pMB->bTimer2Active)
{
const UINT id = (nDeviceNum/2)*kNumTimersPer6522+1; // TIMER2
SyncEvent* pSyncEvent = g_syncEvent[id];
pSyncEvent->SetCycles(pMB->sy6522.TIMER2_COUNTER.w + kExtraTimerCycles); // NB. use COUNTER, not LATCH
g_SynchronousEventMgr.Insert(pSyncEvent);
}
// FIXME: currently only support a single speech chip
if (pMB->SpeechChip.DurationPhoneme || g_bVotraxPhoneme)
{
g_nSSI263Device = nDeviceNum+1; // +1 as speech is always 2nd device of the pair
g_bPhasorEnable = true;
SetSpeechIRQ(pMB);
}
nDeviceNum += 2;
pMB++;
}
AY8910_InitClock((int)(Get6502BaseClock() * g_PhasorClockScaleFactor));
// NB. g_SoundcardType & g_bPhasorEnable setup in MB_InitializeIO() -> MB_SetSoundcardType()
return true;
}
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