1375 lines
41 KiB
C++
1375 lines
41 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2025 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "ay.h"
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#include "../engine.h"
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#include "../../ta-log.h"
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#include "sound/ay8910.h"
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#include <string.h>
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#include <math.h>
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#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
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#define immWrite(a,v) if (!skipRegisterWrites) {writes.push(QueuedWrite(regRemap(a),v)); if (dumpWrites) {addWrite(regRemap(a),v);} }
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#define CHIP_DIVIDER (extMode?extDiv:((sunsoft||clockSel)?16:8))
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const char* regCheatSheetAY[]={
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"FreqL_A", "0",
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"FreqH_A", "1",
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"FreqL_B", "2",
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"FreqH_B", "3",
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"FreqL_C", "4",
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"FreqH_C", "5",
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"FreqNoise", "6",
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"Enable", "7",
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"Volume_A", "8",
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"Volume_B", "9",
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"Volume_C", "A",
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"FreqL_Env", "B",
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"FreqH_Env", "C",
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"Control_Env", "D",
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"PortA", "E",
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"PortB", "F",
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NULL
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};
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const char* regCheatSheetAY8914[]={
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"FreqL_A", "0",
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"FreqL_B", "1",
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"FreqL_C", "2",
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"FreqL_Env", "3",
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"FreqH_A", "4",
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"FreqH_B", "5",
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"FreqH_C", "6",
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"FreqH_Env", "7",
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"Enable", "8",
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"FreqNoise", "9",
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"Control_Env", "A",
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"Volume_A", "B",
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"Volume_B", "C",
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"Volume_C", "D",
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"PortA", "E",
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"PortB", "F",
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NULL
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};
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// taken from ay8910.cpp
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const int sunsoftVolTable[32]={
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103350, 73770, 52657, 37586, 32125, 27458, 24269, 21451,
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18447, 15864, 14009, 12371, 10506, 8922, 7787, 6796,
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5689, 4763, 4095, 3521, 2909, 2403, 2043, 1737,
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1397, 1123, 925, 762, 578, 438, 332, 251
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};
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const char** DivPlatformAY8910::getRegisterSheet() {
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return intellivision?regCheatSheetAY8914:regCheatSheetAY;
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}
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/* C program to generate this table:
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#include <stdio.h>
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#include <math.h>
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int main(int argc, char** argv) {
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for (int i=0; i<256; i++) {
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if ((i&15)==0) printf("\n ");
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printf(" %d,",(int)round(pow((double)i/255.0,0.36)*15.0));
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}
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}
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*/
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const unsigned char dacLogTableAY[256]={
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0, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
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9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
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10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11,
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11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
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11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12,
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12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
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12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14,
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14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15
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};
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void DivPlatformAY8910::runDAC(int runRate, int advance) {
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if (runRate==0) runRate=dacRate;
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for (int i=0; i<3; i++) {
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if (chan[i].active && (chan[i].curPSGMode.val&8) && chan[i].dac.sample!=-1) {
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chan[i].dac.period+=chan[i].dac.rate*advance;
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bool end=false;
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bool changed=false;
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int prevOut=chan[i].dac.out;
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while (chan[i].dac.period>=runRate && !end) {
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DivSample* s=parent->getSample(chan[i].dac.sample);
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if (s->samples<=0 || chan[i].dac.pos<0 || chan[i].dac.pos>=(int)s->samples) {
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chan[i].dac.sample=-1;
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immWrite(0x08+i,0);
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end=true;
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break;
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}
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unsigned char dacData=dacLogTableAY[(unsigned char)s->data8[chan[i].dac.pos]^0x80];
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chan[i].dac.out=(chan[i].active && !isMuted[i])?MAX(0,dacData-(15-chan[i].outVol)):0;
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if (prevOut!=chan[i].dac.out) {
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prevOut=chan[i].dac.out;
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changed=true;
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}
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chan[i].dac.pos++;
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if (s->isLoopable() && chan[i].dac.pos>=s->loopEnd) {
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chan[i].dac.pos=s->loopStart;
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} else if (chan[i].dac.pos>=(int)s->samples) {
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chan[i].dac.sample=-1;
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//immWrite(0x08+i,0);
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end=true;
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break;
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}
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chan[i].dac.period-=runRate;
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}
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if (changed && !end) {
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if (!isMuted[i]) {
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immWrite(0x08+i,chan[i].dac.out);
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}
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}
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}
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}
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}
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void DivPlatformAY8910::runTFX(int runRate, int advance) {
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/*
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developer's note: if you are checking for intellivision
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make sure to add "&& selCore"
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because for some reason, the register remap doesn't work
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when the user uses AtomicSSG core
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*/
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float counterRatio=advance;
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if (runRate!=0) counterRatio=(double)rate/(double)runRate;
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int timerPeriod, output;
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for (int i=0; i<3; i++) {
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if (chan[i].active && (chan[i].curPSGMode.val&16) && !(chan[i].curPSGMode.val&8) && chan[i].tfx.mode!=-1) {
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if (chan[i].tfx.mode == -1 && !isMuted[i]) {
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/*
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bug: if in the timer FX macro the user enables
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and then disables PWM while there is no volume macro
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there is now a random chance that the resulting output
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is silent or has volume set incorrectly
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i've tried to implement a fix, but it seems to be
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ineffective, so...
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TODO: actually implement a proper fix
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*/
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if (intellivision && chan[i].curPSGMode.getEnvelope()) {
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immWrite(0x08+i,(chan[i].outVol&0xc)<<2);
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continue;
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} else {
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immWrite(0x08+i,(chan[i].outVol&15)|((chan[i].curPSGMode.getEnvelope())<<2));
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continue;
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}
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}
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chan[i].tfx.counter += counterRatio;
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if (chan[i].tfx.counter >= chan[i].tfx.period && chan[i].tfx.mode == 0) {
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chan[i].tfx.counter -= chan[i].tfx.period;
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chan[i].tfx.out ^= 1;
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output = ((chan[i].tfx.out) ? chan[i].outVol : (chan[i].tfx.lowBound-(15-chan[i].outVol)));
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// TODO: fix this stupid crackling noise that happens
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// everytime the volume changes
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output = (output <= 0) ? 0 : output; // underflow
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output = (output >= 15) ? 15 : output; // overflow
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output &= 15; // i don't know if i need this but i'm too scared to remove it
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if (!isMuted[i]) {
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// TODO: ???????
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if (intellivision && selCore) {
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immWrite(0x0b+i,(output&0xc)<<2);
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} else {
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immWrite(0x08+i,output|(chan[i].curPSGMode.getEnvelope()<<2));
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}
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}
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}
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if (chan[i].tfx.counter >= chan[i].tfx.period && chan[i].tfx.mode == 1) {
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chan[i].tfx.counter -= chan[i].tfx.period;
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if (!isMuted[i]) {
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// TODO: ???????
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if (intellivision && selCore) {
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immWrite(0xa, ayEnvMode);
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} else {
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immWrite(0xd, ayEnvMode);
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}
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}
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}
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if (chan[i].tfx.counter >= chan[i].tfx.period && chan[i].tfx.mode == 2) {
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chan[i].tfx.counter -= chan[i].tfx.period;
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}
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}
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if (chan[i].tfx.num > 0) {
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timerPeriod = chan[i].freq*chan[i].tfx.den/chan[i].tfx.num;
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} else {
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timerPeriod = chan[i].freq*chan[i].tfx.den;
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}
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if (chan[i].tfx.num > 0 && chan[i].tfx.den > 0) chan[i].tfx.period=timerPeriod+chan[i].tfx.offset;
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// stupid pitch correction because:
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// YM2149 half-clock and Sunsoft 5B: timers run an octave too high
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// on AtomicSSG core timers run 2 octaves too high
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if (clockSel || sunsoft) chan[i].tfx.period = chan[i].tfx.period * 2;
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if (selCore && !intellivision) chan[i].tfx.period = chan[i].tfx.period * 4;
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}
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}
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void DivPlatformAY8910::checkWrites() {
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while (!writes.empty()) {
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QueuedWrite w=writes.front();
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if (intellivision) {
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ay8914_device* ay8914=(ay8914_device*)ay;
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ay8914->write(w.addr,w.val);
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} else {
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ay->address_w(w.addr);
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ay->data_w(w.val);
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}
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regPool[w.addr&0x0f]=w.val;
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writes.pop();
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}
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}
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void DivPlatformAY8910::acquire_mame(blip_buffer_t** bb, size_t len) {
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thread_local short ayBuf[3];
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for (int i=0; i<3; i++) {
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oscBuf[i]->begin(len);
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}
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for (size_t i=0; i<len; i++) {
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int advance=len-i;
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bool careAboutEnv=false;
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bool careAboutNoise=false;
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// heuristic
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if (!writes.empty()) {
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advance=1;
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} else {
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for (int j=0; j<3; j++) {
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// tone counter
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if (!ay->tone_enable(j) && ay->m_tone[j].volume!=0) {
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const int period=MAX(1,ay->m_tone[j].period)*(ay->m_step_mul<<1);
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const int remain=(period-ay->m_tone[j].count)>>1;
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if (remain<advance) {
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advance=remain;
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}
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}
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// count me in if I have noise enabled
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if (!ay->noise_enable(j) && ay->m_tone[j].volume!=0) {
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careAboutNoise=true;
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}
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// envelope check
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if (ay->m_tone[j].volume&16) {
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careAboutEnv=true;
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}
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// DAC
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if (chan[j].active && (chan[j].curPSGMode.val&8) && chan[j].dac.sample!=-1) {
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if (chan[j].dac.rate<=0) continue;
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const int remainTime=(rate-chan[j].dac.period+chan[j].dac.rate-1)/chan[j].dac.rate;
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if (remainTime<advance) advance=remainTime;
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}
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// TFX
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if (chan[j].active && (chan[j].curPSGMode.val&16) && !(chan[j].curPSGMode.val&8) && chan[j].tfx.mode!=-1) {
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const int remainTime=chan[j].tfx.period-chan[j].tfx.counter;
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if (remainTime<advance) advance=remainTime;
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}
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if (advance<=1) break;
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}
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// envelope
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if (careAboutEnv) {
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if (ay->m_envelope[0].holding==0) {
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const int periodEnv=MAX(1,ay->m_envelope[0].period)*ay->m_env_step_mul;
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const int remainEnv=periodEnv-ay->m_envelope[0].count;
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if (remainEnv<advance) {
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advance=remainEnv;
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}
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}
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}
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// noise
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if (careAboutNoise) {
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const int noisePeriod=((int)ay->noise_period())*ay->m_step_mul;
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const int noiseRemain=noisePeriod-ay->m_count_noise;
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if (noiseRemain<advance) {
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advance=noiseRemain;
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}
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}
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}
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if (advance<1) advance=1;
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runDAC(0,advance);
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runTFX(0,advance);
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checkWrites();
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ay->sound_stream_update(ayBuf,advance);
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i+=advance-1;
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if (sunsoft) {
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if (lastOut[0]!=ayBuf[0]) {
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blip_add_delta(bb[0],i,ayBuf[0]-lastOut[0]);
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blip_add_delta(bb[1],i,ayBuf[0]-lastOut[0]);
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lastOut[0]=ayBuf[0];
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}
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oscBuf[0]->putSample(i,CLAMP(sunsoftVolTable[31-(ay->lastIndx&31)]<<3,-32768,32767));
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oscBuf[1]->putSample(i,CLAMP(sunsoftVolTable[31-((ay->lastIndx>>5)&31)]<<3,-32768,32767));
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oscBuf[2]->putSample(i,CLAMP(sunsoftVolTable[31-((ay->lastIndx>>10)&31)]<<3,-32768,32767));
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} else {
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if (stereo) {
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int out0=ayBuf[0]+((ayBuf[1]*centerVol+ayBuf[2]*sideVol)>>8);
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int out1=((ayBuf[0]*sideVol+ayBuf[1]*centerVol)>>8)+ayBuf[2];
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if (lastOut[0]!=out0) {
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blip_add_delta(bb[0],i,out0-lastOut[0]);
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lastOut[0]=out0;
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}
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if (lastOut[1]!=out1) {
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blip_add_delta(bb[1],i,out1-lastOut[1]);
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lastOut[1]=out1;
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}
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} else {
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int out=ayBuf[0]+ayBuf[1]+ayBuf[2];
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if (lastOut[0]!=out) {
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blip_add_delta(bb[0],i,out-lastOut[0]);
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blip_add_delta(bb[1],i,out-lastOut[0]);
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lastOut[0]=out;
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}
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}
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oscBuf[0]->putSample(i,ayBuf[0]<<2);
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oscBuf[1]->putSample(i,ayBuf[1]<<2);
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oscBuf[2]->putSample(i,ayBuf[2]<<2);
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}
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}
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for (int i=0; i<3; i++) {
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oscBuf[i]->end(len);
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}
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}
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void DivPlatformAY8910::acquire_atomic(short** buf, size_t len) {
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for (int i=0; i<3; i++) {
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oscBuf[i]->begin(len);
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}
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for (size_t i=0; i<len; i++) {
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runDAC(0,1);
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runTFX(0,1);
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if (!writes.empty()) {
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QueuedWrite w=writes.front();
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SSG_Write(&ay_atomic,w.addr&0x0f,w.val);
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regPool[w.addr&0x0f]=w.val;
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writes.pop();
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}
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SSG_Clock(&ay_atomic,0);
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SSG_Clock(&ay_atomic,1);
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if (stereo) {
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buf[0][i]=ay_atomic.o_analog[0]+((ay_atomic.o_analog[1]*centerVol+ay_atomic.o_analog[2]*sideVol)>>8);
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buf[1][i]=((ay_atomic.o_analog[0]*sideVol+ay_atomic.o_analog[1]*centerVol)>>8)+ay_atomic.o_analog[2];
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} else {
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buf[0][i]=ay_atomic.o_analog[0]+ay_atomic.o_analog[1]+ay_atomic.o_analog[2];
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buf[1][i]=buf[0][i];
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}
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oscBuf[0]->putSample(i,ay_atomic.o_analog[0]);
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oscBuf[1]->putSample(i,ay_atomic.o_analog[1]);
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oscBuf[2]->putSample(i,ay_atomic.o_analog[2]);
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}
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for (int i=0; i<3; i++) {
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oscBuf[i]->end(len);
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}
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}
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void DivPlatformAY8910::acquireDirect(blip_buffer_t** bb, size_t len) {
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if (selCore && !intellivision) return;
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acquire_mame(bb,len);
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}
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void DivPlatformAY8910::acquire(short** buf, size_t len) {
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if (selCore && !intellivision) {
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acquire_atomic(buf,len);
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}
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}
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void DivPlatformAY8910::fillStream(std::vector<DivDelayedWrite>& stream, int sRate, size_t len) {
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writes.clear();
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for (size_t i=0; i<len; i++) {
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runDAC(sRate,1);
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runTFX(sRate,1);
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while (!writes.empty()) {
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QueuedWrite& w=writes.front();
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stream.push_back(DivDelayedWrite(i,w.addr,w.val));
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writes.pop_front();
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}
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}
|
|
}
|
|
|
|
void DivPlatformAY8910::updateOutSel(bool immediate) {
|
|
if (immediate) {
|
|
immWrite(0x07,
|
|
~((chan[0].curPSGMode.getTone())|
|
|
((chan[1].curPSGMode.getTone())<<1)|
|
|
((chan[2].curPSGMode.getTone())<<2)|
|
|
((chan[0].curPSGMode.getNoise())<<2)|
|
|
((chan[1].curPSGMode.getNoise())<<3)|
|
|
((chan[2].curPSGMode.getNoise())<<4)|
|
|
((!ioPortA)<<6)|
|
|
((!ioPortB)<<7)));
|
|
} else {
|
|
rWrite(0x07,
|
|
~((chan[0].curPSGMode.getTone())|
|
|
((chan[1].curPSGMode.getTone())<<1)|
|
|
((chan[2].curPSGMode.getTone())<<2)|
|
|
((chan[0].curPSGMode.getNoise())<<2)|
|
|
((chan[1].curPSGMode.getNoise())<<3)|
|
|
((chan[2].curPSGMode.getNoise())<<4)|
|
|
((!ioPortA)<<6)|
|
|
((!ioPortB)<<7)));
|
|
}
|
|
}
|
|
|
|
void DivPlatformAY8910::tick(bool sysTick) {
|
|
signed char noiseAdd=-1;
|
|
// PSG
|
|
for (int i=0; i<3; i++) {
|
|
chan[i].std.next();
|
|
if (chan[i].std.vol.had) {
|
|
chan[i].outVol=MIN(15,chan[i].std.vol.val)-(15-(chan[i].vol&15));
|
|
if (chan[i].outVol<0) chan[i].outVol=0;
|
|
if (!(chan[i].nextPSGMode.val&8) || !(chan[i].nextPSGMode.val&16)) {
|
|
if (isMuted[i]) {
|
|
rWrite(0x08+i,0);
|
|
} else if (intellivision && (chan[i].nextPSGMode.getEnvelope())) {
|
|
rWrite(0x08+i,(chan[i].outVol&0xc)<<2);
|
|
} else {
|
|
rWrite(0x08+i,(chan[i].outVol&15)|((chan[i].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
}
|
|
}
|
|
if (NEW_ARP_STRAT) {
|
|
chan[i].handleArp();
|
|
} else if (chan[i].std.arp.had) {
|
|
if (!chan[i].inPorta) {
|
|
chan[i].baseFreq=NOTE_PERIODIC(parent->calcArp(chan[i].note,chan[i].std.arp.val));
|
|
}
|
|
chan[i].freqChanged=true;
|
|
}
|
|
if (chan[i].std.duty.had) {
|
|
if (chan[i].std.duty.mode) {
|
|
noiseAdd=chan[i].std.duty.val;
|
|
}
|
|
else {
|
|
ayNoisePeriod=chan[i].std.duty.val;
|
|
noiseAdd=0;
|
|
}
|
|
}
|
|
if (chan[i].std.wave.had) {
|
|
if (!(chan[i].nextPSGMode.val&8)) {
|
|
chan[i].nextPSGMode.val=chan[i].std.wave.val&7;
|
|
chan[i].nextPSGMode.val|=(chan[i].curPSGMode.val&16);
|
|
if (chan[i].active) {
|
|
chan[i].curPSGMode.val=chan[i].nextPSGMode.val;
|
|
}
|
|
if (isMuted[i]) {
|
|
rWrite(0x08+i,0);
|
|
} else if (intellivision && (chan[i].nextPSGMode.getEnvelope())) {
|
|
rWrite(0x08+i,(chan[i].outVol&0xc)<<2);
|
|
} else {
|
|
rWrite(0x08+i,(chan[i].outVol&15)|((chan[i].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
}
|
|
}
|
|
if (chan[i].std.pitch.had) {
|
|
if (chan[i].std.pitch.mode) {
|
|
chan[i].pitch2+=chan[i].std.pitch.val;
|
|
CLAMP_VAR(chan[i].pitch2,-32768,32767);
|
|
} else {
|
|
chan[i].pitch2=chan[i].std.pitch.val;
|
|
}
|
|
chan[i].freqChanged=true;
|
|
}
|
|
if (chan[i].std.phaseReset.had) {
|
|
if (chan[i].std.phaseReset.val==1) {
|
|
chan[i].tfx.counter = 0;
|
|
chan[i].tfx.out = 0;
|
|
if (chan[i].nextPSGMode.val&8) {
|
|
//if (dumpWrites) addWrite(0xffff0002+(i<<8),0);
|
|
if (chan[i].dac.sample<0 || chan[i].dac.sample>=parent->song.sampleLen) {
|
|
if (dumpWrites) {
|
|
rWrite(0x08+i,0);
|
|
//addWrite(0xffff0000+(i<<8),chan[i].dac.sample);
|
|
}
|
|
if (chan[i].dac.setPos) {
|
|
chan[i].dac.setPos=false;
|
|
} else {
|
|
chan[i].dac.pos=0;
|
|
}
|
|
chan[i].dac.period=0;
|
|
chan[i].keyOn=true;
|
|
}
|
|
}
|
|
oldWrites[0x08+i]=-1;
|
|
oldWrites[0x0d]=-1;
|
|
}
|
|
}
|
|
if (chan[i].std.ex2.had) {
|
|
ayEnvMode=chan[i].std.ex2.val;
|
|
rWrite(0x0d,ayEnvMode);
|
|
}
|
|
if (chan[i].std.ex3.had) {
|
|
chan[i].autoEnvNum=chan[i].std.ex3.val;
|
|
chan[i].freqChanged=true;
|
|
if (!chan[i].std.alg.will) chan[i].autoEnvDen=1;
|
|
}
|
|
if (chan[i].std.alg.had) {
|
|
chan[i].autoEnvDen=chan[i].std.alg.val;
|
|
chan[i].freqChanged=true;
|
|
if (!chan[i].std.ex3.will) chan[i].autoEnvNum=1;
|
|
}
|
|
if (chan[i].std.ex4.had) {
|
|
chan[i].fixedFreq=chan[i].std.ex4.val;
|
|
chan[i].freqChanged=true;
|
|
}
|
|
if (chan[i].std.ex5.had && (!chan[3].active && extendedSsg)) {
|
|
ayEnvPeriod=chan[i].std.ex5.val<<8;
|
|
}
|
|
if (chan[i].std.ex6.had) {
|
|
// 0 - disable timer
|
|
// 1 - pwm
|
|
// 2 - syncbuzzer
|
|
switch (chan[i].std.ex6.val) {
|
|
case 1:
|
|
chan[i].nextPSGMode.val|=16;
|
|
chan[i].tfx.mode = 0;
|
|
break;
|
|
case 2:
|
|
chan[i].nextPSGMode.val|=16;
|
|
chan[i].tfx.mode = 1;
|
|
break;
|
|
case 3:
|
|
chan[i].nextPSGMode.val|=16;
|
|
chan[i].tfx.mode = 2;
|
|
break;
|
|
default:
|
|
chan[i].nextPSGMode.val|=16;
|
|
chan[i].tfx.mode = -1; // this is a workaround!
|
|
break;
|
|
}
|
|
}
|
|
if (chan[i].std.ex7.had) {
|
|
chan[i].tfx.offset=chan[i].std.ex7.val;
|
|
}
|
|
if (chan[i].std.ex8.had) {
|
|
chan[i].tfx.num=chan[i].std.ex8.val;
|
|
chan[i].freqChanged=true;
|
|
if (!chan[i].std.fms.will) chan[i].tfx.den=1;
|
|
}
|
|
if (chan[i].std.fms.had) {
|
|
chan[i].tfx.den=chan[i].std.fms.val;
|
|
chan[i].freqChanged=true;
|
|
if (!chan[i].std.ex8.will) chan[i].tfx.num=1;
|
|
}
|
|
if (chan[i].std.ams.had) {
|
|
chan[i].tfx.lowBound=chan[i].std.ams.val;
|
|
}
|
|
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
|
|
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
|
|
if (chan[i].dac.furnaceDAC) {
|
|
double off=1.0;
|
|
if (chan[i].dac.sample>=0 && chan[i].dac.sample<parent->song.sampleLen) {
|
|
DivSample* s=parent->getSample(chan[i].dac.sample);
|
|
if (s->centerRate<1) {
|
|
off=1.0;
|
|
} else {
|
|
off=parent->getCenterRate()/(double)s->centerRate;
|
|
}
|
|
}
|
|
chan[i].dac.rate=((double)rate*((sunsoft||clockSel)?8.0:16.0))/(double)(MAX(1,off*chan[i].freq));
|
|
//if (dumpWrites) addWrite(0xffff0001+(i<<8),chan[i].dac.rate);
|
|
}
|
|
if (chan[i].freq<0) chan[i].freq=0;
|
|
if (chan[i].freq>4095) chan[i].freq=4095;
|
|
if (chan[i].fixedFreq>4095) chan[i].fixedFreq=4095;
|
|
if (chan[i].keyOn) {
|
|
//rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(ins->gb.soundLen&63)));
|
|
//rWrite(16+i*5+2,((chan[i].vol<<4))|(ins->gb.envLen&7)|((ins->gb.envDir&1)<<3));
|
|
if (!(chan[i].nextPSGMode.val&8)) {
|
|
chan[i].curPSGMode.val=chan[i].nextPSGMode.val;
|
|
}
|
|
}
|
|
if (chan[i].keyOff) {
|
|
chan[i].curPSGMode.val=0;
|
|
rWrite(0x08+i,0);
|
|
}
|
|
if (chan[i].fixedFreq>0) {
|
|
rWrite((i)<<1,chan[i].fixedFreq&0xff);
|
|
rWrite(1+((i)<<1),chan[i].fixedFreq>>8);
|
|
} else {
|
|
rWrite((i)<<1,chan[i].freq&0xff);
|
|
rWrite(1+((i)<<1),chan[i].freq>>8);
|
|
}
|
|
if (chan[i].freqChanged && chan[i].autoEnvNum>0 && chan[i].autoEnvDen>0 && (!chan[3].active && extendedSsg)) {
|
|
ayEnvPeriod=(chan[i].freq*chan[i].autoEnvDen/chan[i].autoEnvNum)<<4;
|
|
}
|
|
if (chan[i].keyOn) chan[i].keyOn=false;
|
|
if (chan[i].keyOff) chan[i].keyOff=false;
|
|
if (chan[i].freqChanged && chan[i].autoEnvNum>0 && chan[i].autoEnvDen>0) {
|
|
ayEnvPeriod=(chan[i].freq*chan[i].autoEnvDen/chan[i].autoEnvNum)>>4;
|
|
immWrite(0x0b,ayEnvPeriod);
|
|
immWrite(0x0c,ayEnvPeriod>>8);
|
|
}
|
|
chan[i].freqChanged=false;
|
|
}
|
|
}
|
|
|
|
// Envelope
|
|
chan[3].std.next();
|
|
if (NEW_ARP_STRAT) {
|
|
chan[3].handleArp();
|
|
} else if (chan[3].std.arp.had) {
|
|
if (!chan[3].inPorta) {
|
|
int note=parent->calcArp(chan[3].note,chan[3].std.arp.val);
|
|
chan[3].baseFreq=round(parent->calcBaseFreq(chipClock*16,CHIP_DIVIDER,note,true));
|
|
}
|
|
chan[3].freqChanged=true;
|
|
}
|
|
if (chan[3].std.pitch.had) {
|
|
if (chan[3].std.pitch.mode) {
|
|
chan[3].pitch2+=chan[3].std.pitch.val;
|
|
CLAMP_VAR(chan[3].pitch2,-32768,32767);
|
|
} else {
|
|
chan[3].pitch2=chan[3].std.pitch.val;
|
|
}
|
|
chan[3].freqChanged=true;
|
|
}
|
|
if (chan[3].std.ex2.had) {
|
|
ayEnvMode=chan[3].std.ex2.val;
|
|
rWrite(0x0d,ayEnvMode);
|
|
}
|
|
if (chan[3].std.ex5.had && chan[3].active) {
|
|
ayEnvPeriod=chan[3].std.ex5.val<<8;
|
|
}
|
|
else if ((chan[3].freqChanged && chan[3].active) || chan[3].keyOn) {
|
|
if (envRawMode) {
|
|
// Compute base without pitch2, then apply pitch2 directly to the raw envelope period
|
|
int baseFreq=parent->calcFreq(chan[3].baseFreq,chan[3].pitch,chan[3].fixedArp?chan[3].baseNoteOverride:chan[3].arpOff,chan[3].fixedArp,true,0,0,chipClock*16,CHIP_DIVIDER);
|
|
if (baseFreq<0) baseFreq=0;
|
|
if (baseFreq>65535*256) baseFreq=65535*256;
|
|
// Apply pitch2 later as raw offset in the same fixed-point scale (8 fractional bits)
|
|
long adjusted=(long)baseFreq + ((long)chan[3].pitch2<<8);
|
|
if (adjusted<0) adjusted=0;
|
|
if (adjusted>(long)65535*256) adjusted=(long)65535*256;
|
|
chan[3].freq=(int)adjusted;
|
|
ayEnvPeriod=chan[3].freq;
|
|
chan[3].freqChanged=false;
|
|
} else {
|
|
chan[3].freq=parent->calcFreq(chan[3].baseFreq,chan[3].pitch,chan[3].fixedArp?chan[3].baseNoteOverride:chan[3].arpOff,chan[3].fixedArp,true,0,chan[3].pitch2,chipClock*16,CHIP_DIVIDER);
|
|
if (chan[3].freq<0) chan[3].freq=0;
|
|
if (chan[3].freq>65535*256) chan[3].freq=65535*256;
|
|
ayEnvPeriod=chan[3].freq;
|
|
chan[3].freqChanged=false;
|
|
}
|
|
}
|
|
if (chan[3].keyOn) chan[3].keyOn=false;
|
|
if (chan[3].keyOff) chan[3].keyOff=false;
|
|
|
|
if (noiseAdd>=0) {
|
|
ayNoisePeriod=(ayNoisePeriod+noiseAdd)&31;
|
|
rWrite(0x06,31-ayNoisePeriod);
|
|
}
|
|
|
|
updateOutSel();
|
|
|
|
if (ayEnvSlide!=0) {
|
|
ayEnvSlideLow+=ayEnvSlide;
|
|
while (ayEnvSlideLow>7) {
|
|
ayEnvSlideLow-=8;
|
|
if (ayEnvPeriod<0xffff) {
|
|
ayEnvPeriod++;
|
|
immWrite(0x0b,ayEnvPeriod);
|
|
immWrite(0x0c,ayEnvPeriod>>8);
|
|
}
|
|
}
|
|
while (ayEnvSlideLow<-7) {
|
|
ayEnvSlideLow+=8;
|
|
if (ayEnvPeriod>0) {
|
|
ayEnvPeriod--;
|
|
immWrite(0x0b,ayEnvPeriod);
|
|
immWrite(0x0c,ayEnvPeriod>>8);
|
|
}
|
|
}
|
|
}
|
|
|
|
unsigned int newPeriod=ayEnvPeriod>>8;
|
|
if (newPeriod!=ayOldEnvPeriod) {
|
|
immWrite(0x0b,newPeriod&0xff);
|
|
immWrite(0x0c,newPeriod>>8);
|
|
ayOldEnvPeriod=newPeriod;
|
|
}
|
|
|
|
for (int i=0; i<16; i++) {
|
|
if (pendingWrites[i]!=oldWrites[i]) {
|
|
immWrite(i,pendingWrites[i]&0xff);
|
|
oldWrites[i]=pendingWrites[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
int DivPlatformAY8910::dispatch(DivCommand c) {
|
|
switch (c.cmd) {
|
|
case DIV_CMD_NOTE_ON: {
|
|
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_AY);
|
|
if (!parent->song.disableSampleMacro && (ins->type==DIV_INS_AMIGA || ins->amiga.useSample)) {
|
|
chan[c.chan].nextPSGMode.val|=8;
|
|
} else if (chan[c.chan].dac.furnaceDAC) {
|
|
chan[c.chan].nextPSGMode.val&=~8;
|
|
}
|
|
if (chan[c.chan].nextPSGMode.val&8) {
|
|
if (skipRegisterWrites) break;
|
|
if (!parent->song.disableSampleMacro && (ins->type==DIV_INS_AMIGA || ins->amiga.useSample)) {
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].dac.sample=ins->amiga.getSample(c.value);
|
|
chan[c.chan].sampleNote=c.value;
|
|
c.value=ins->amiga.getFreq(c.value);
|
|
chan[c.chan].sampleNoteDelta=c.value-chan[c.chan].sampleNote;
|
|
} else if (chan[c.chan].sampleNote!=DIV_NOTE_NULL) {
|
|
chan[c.chan].dac.sample=ins->amiga.getSample(chan[c.chan].sampleNote);
|
|
c.value=ins->amiga.getFreq(chan[c.chan].sampleNote);
|
|
}
|
|
if (chan[c.chan].dac.sample<0 || chan[c.chan].dac.sample>=parent->song.sampleLen) {
|
|
chan[c.chan].dac.sample=-1;
|
|
//if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
|
|
break;
|
|
} else {
|
|
if (dumpWrites) {
|
|
rWrite(0x08+c.chan,0);
|
|
//addWrite(0xffff0000+(c.chan<<8),chan[c.chan].dac.sample);
|
|
}
|
|
}
|
|
if (chan[c.chan].dac.setPos) {
|
|
chan[c.chan].dac.setPos=false;
|
|
} else {
|
|
chan[c.chan].dac.pos=0;
|
|
}
|
|
chan[c.chan].dac.period=0;
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].macroInit(ins);
|
|
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
|
|
chan[c.chan].outVol=chan[c.chan].vol;
|
|
}
|
|
//chan[c.chan].keyOn=true;
|
|
chan[c.chan].dac.furnaceDAC=true;
|
|
} else {
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].dac.sample=12*sampleBank+chan[c.chan].note%12;
|
|
if (chan[c.chan].dac.sample>=parent->song.sampleLen) {
|
|
chan[c.chan].dac.sample=-1;
|
|
//if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
|
|
break;
|
|
} else {
|
|
//if (dumpWrites) addWrite(0xffff0000+(c.chan<<8),chan[c.chan].dac.sample);
|
|
}
|
|
if (chan[c.chan].dac.setPos) {
|
|
chan[c.chan].dac.setPos=false;
|
|
} else {
|
|
chan[c.chan].dac.pos=0;
|
|
}
|
|
chan[c.chan].dac.period=0;
|
|
chan[c.chan].dac.rate=parent->getSample(chan[c.chan].dac.sample)->rate*2048;
|
|
if (dumpWrites) {
|
|
rWrite(0x08+c.chan,0);
|
|
//addWrite(0xffff0001+(c.chan<<8),chan[c.chan].dac.rate);
|
|
}
|
|
chan[c.chan].dac.furnaceDAC=false;
|
|
}
|
|
chan[c.chan].curPSGMode.val&=~8;
|
|
chan[c.chan].curPSGMode.val|=chan[c.chan].nextPSGMode.val&8;
|
|
break;
|
|
}
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].sampleNote=DIV_NOTE_NULL;
|
|
chan[c.chan].sampleNoteDelta=0;
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].fixedFreq=0;
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].keyOn=true;
|
|
chan[c.chan].macroInit(ins);
|
|
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
|
|
chan[c.chan].outVol=chan[c.chan].vol;
|
|
}
|
|
if (c.chan<3 && !(chan[c.chan].nextPSGMode.val&8)) {
|
|
if (isMuted[c.chan]) {
|
|
rWrite(0x08+c.chan,0);
|
|
} else if (intellivision && (chan[c.chan].nextPSGMode.getEnvelope())) {
|
|
rWrite(0x08+c.chan,(chan[c.chan].vol&0xc)<<2);
|
|
} else {
|
|
rWrite(0x08+c.chan,(chan[c.chan].vol&15)|((chan[c.chan].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_NOTE_OFF:
|
|
chan[c.chan].dac.sample=-1;
|
|
//if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
|
|
chan[c.chan].nextPSGMode.val&=~8;
|
|
chan[c.chan].keyOff=true;
|
|
chan[c.chan].active=false;
|
|
chan[c.chan].macroInit(NULL);
|
|
break;
|
|
case DIV_CMD_NOTE_OFF_ENV:
|
|
case DIV_CMD_ENV_RELEASE:
|
|
chan[c.chan].std.release();
|
|
break;
|
|
case DIV_CMD_VOLUME: {
|
|
chan[c.chan].vol=c.value;
|
|
if (!chan[c.chan].std.vol.has) {
|
|
chan[c.chan].outVol=c.value;
|
|
}
|
|
if (c.chan<3 && !(chan[c.chan].nextPSGMode.val&8)) {
|
|
if (isMuted[c.chan]) {
|
|
rWrite(0x08+c.chan,0);
|
|
} else {
|
|
if (chan[c.chan].active) {
|
|
if (intellivision && (chan[c.chan].nextPSGMode.getEnvelope())) {
|
|
rWrite(0x08+c.chan,(chan[c.chan].vol&0xc)<<2);
|
|
} else {
|
|
rWrite(0x08+c.chan,(chan[c.chan].vol&15)|((chan[c.chan].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_GET_VOLUME: {
|
|
return chan[c.chan].vol;
|
|
break;
|
|
}
|
|
case DIV_CMD_INSTRUMENT:
|
|
if (chan[c.chan].ins!=c.value || c.value2==1) {
|
|
chan[c.chan].insChanged=true;
|
|
}
|
|
chan[c.chan].ins=c.value;
|
|
break;
|
|
case DIV_CMD_PITCH: {
|
|
chan[c.chan].pitch=c.value;
|
|
chan[c.chan].freqChanged=true;
|
|
break;
|
|
}
|
|
case DIV_CMD_NOTE_PORTA: {
|
|
int destFreq=NOTE_PERIODIC(c.value2+chan[c.chan].sampleNoteDelta);
|
|
bool return2=false;
|
|
if (destFreq>chan[c.chan].baseFreq) {
|
|
chan[c.chan].baseFreq+=c.value;
|
|
if (chan[c.chan].baseFreq>=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
} else {
|
|
chan[c.chan].baseFreq-=c.value;
|
|
if (chan[c.chan].baseFreq<=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
}
|
|
chan[c.chan].freqChanged=true;
|
|
if (return2) {
|
|
chan[c.chan].inPorta=false;
|
|
return 2;
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_LEGATO: {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+chan[c.chan].sampleNoteDelta);
|
|
chan[c.chan].freqChanged=true;
|
|
break;
|
|
}
|
|
case DIV_CMD_STD_NOISE_MODE:
|
|
if (!(chan[c.chan].nextPSGMode.val&8)) {
|
|
chan[c.chan].nextPSGMode.val|=16;
|
|
chan[c.chan].tfx.mode=(((c.value&0xf0)>>4)&3)-1;
|
|
if ((c.value&15)<16) {
|
|
chan[c.chan].nextPSGMode.val=(c.value+1)&7;
|
|
chan[c.chan].nextPSGMode.val|=chan[c.chan].curPSGMode.val&16;
|
|
if (chan[c.chan].active) {
|
|
chan[c.chan].curPSGMode.val=chan[c.chan].nextPSGMode.val;
|
|
}
|
|
if (c.chan<3) {
|
|
if (isMuted[c.chan]) {
|
|
rWrite(0x08+c.chan,0);
|
|
} else if (chan[c.chan].active) {
|
|
if (intellivision && (chan[c.chan].nextPSGMode.getEnvelope())) {
|
|
rWrite(0x08+c.chan,(chan[c.chan].outVol&0xc)<<2);
|
|
} else {
|
|
rWrite(0x08+c.chan,(chan[c.chan].outVol&15)|((chan[c.chan].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case DIV_CMD_STD_NOISE_FREQ:
|
|
ayNoisePeriod=c.value;
|
|
rWrite(0x06,31-ayNoisePeriod);
|
|
break;
|
|
case DIV_CMD_AY_ENVELOPE_SET:
|
|
ayEnvMode=c.value>>4;
|
|
rWrite(0x0d,ayEnvMode);
|
|
if (c.value&15) {
|
|
chan[c.chan].nextPSGMode.val|=4;
|
|
} else {
|
|
chan[c.chan].nextPSGMode.val&=~4;
|
|
}
|
|
if (!(chan[c.chan].nextPSGMode.val&8) && chan[c.chan].active) {
|
|
chan[c.chan].curPSGMode.val=chan[c.chan].nextPSGMode.val;
|
|
}
|
|
if (isMuted[c.chan]) {
|
|
rWrite(0x08+c.chan,0);
|
|
} else if (intellivision && (chan[c.chan].nextPSGMode.getEnvelope())) {
|
|
rWrite(0x08+c.chan,(chan[c.chan].vol&0xc)<<2);
|
|
} else {
|
|
rWrite(0x08+c.chan,(chan[c.chan].vol&15)|((chan[c.chan].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
break;
|
|
case DIV_CMD_AY_ENVELOPE_LOW:
|
|
ayEnvPeriod&=0xff0000;
|
|
ayEnvPeriod|=c.value<<8;
|
|
ayOldEnvPeriod=ayEnvPeriod>>8;
|
|
immWrite(0x0b,ayOldEnvPeriod&0xff);
|
|
immWrite(0x0c,ayOldEnvPeriod>>8);
|
|
break;
|
|
case DIV_CMD_AY_ENVELOPE_HIGH:
|
|
ayEnvPeriod&=0xff00;
|
|
ayEnvPeriod|=c.value<<16;
|
|
ayOldEnvPeriod=ayEnvPeriod>>8;
|
|
immWrite(0x0b,ayOldEnvPeriod&0xff);
|
|
immWrite(0x0c,ayOldEnvPeriod>>8);
|
|
break;
|
|
case DIV_CMD_AY_ENVELOPE_SLIDE:
|
|
ayEnvSlide=c.value;
|
|
break;
|
|
case DIV_CMD_AY_AUTO_ENVELOPE:
|
|
chan[c.chan].autoEnvNum=c.value>>4;
|
|
chan[c.chan].autoEnvDen=c.value&15;
|
|
chan[c.chan].freqChanged=true;
|
|
break;
|
|
case DIV_CMD_AY_IO_WRITE:
|
|
if (c.value==255) break;
|
|
if (c.value) { // port B
|
|
ioPortB=true;
|
|
portBVal=c.value2;
|
|
logI("AY I/O port B write: %x",portBVal);
|
|
} else { // port A
|
|
ioPortA=true;
|
|
portAVal=c.value2;
|
|
logI("AY I/O port A write: %x",portAVal);
|
|
}
|
|
updateOutSel(true);
|
|
immWrite(14+(c.value?1:0),(c.value?portBVal:portAVal));
|
|
break;
|
|
case DIV_CMD_AY_NOISE_MASK_AND:
|
|
chan[c.chan].tfx.num=c.value>>4;
|
|
chan[c.chan].tfx.den=c.value&15;
|
|
break;
|
|
case DIV_CMD_AY_AUTO_PWM: {
|
|
// best way i could find to do signed :/
|
|
signed char signVal=c.value;
|
|
chan[c.chan].tfx.offset=signVal;
|
|
break;
|
|
}
|
|
case DIV_CMD_SAMPLE_MODE:
|
|
if (c.value>0) {
|
|
chan[c.chan].nextPSGMode.val|=8;
|
|
} else {
|
|
chan[c.chan].nextPSGMode.val&=~8;
|
|
}
|
|
if (chan[c.chan].active) {
|
|
chan[c.chan].curPSGMode.val&=~8;
|
|
chan[c.chan].curPSGMode.val|=chan[c.chan].nextPSGMode.val&8;
|
|
}
|
|
break;
|
|
case DIV_CMD_SAMPLE_BANK:
|
|
sampleBank=c.value;
|
|
if (sampleBank>(parent->song.sample.size()/12)) {
|
|
sampleBank=parent->song.sample.size()/12;
|
|
}
|
|
break;
|
|
case DIV_CMD_SAMPLE_POS:
|
|
chan[c.chan].dac.pos=c.value;
|
|
chan[c.chan].dac.setPos=true;
|
|
//if (dumpWrites) addWrite(0xffff0005,chan[c.chan].dac.pos);
|
|
break;
|
|
case DIV_CMD_MACRO_OFF:
|
|
chan[c.chan].std.mask(c.value,true);
|
|
break;
|
|
case DIV_CMD_MACRO_ON:
|
|
chan[c.chan].std.mask(c.value,false);
|
|
break;
|
|
case DIV_CMD_MACRO_RESTART:
|
|
chan[c.chan].std.restart(c.value);
|
|
break;
|
|
case DIV_CMD_GET_VOLMAX:
|
|
return 15;
|
|
break;
|
|
case DIV_CMD_PRE_PORTA:
|
|
if (chan[c.chan].active && c.value2) {
|
|
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_AY));
|
|
}
|
|
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
|
|
chan[c.chan].inPorta=c.value;
|
|
break;
|
|
case DIV_CMD_PRE_NOTE:
|
|
break;
|
|
default:
|
|
//printf("WARNING: unimplemented command %d\n",c.cmd);
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void DivPlatformAY8910::muteChannel(int ch, bool mute) {
|
|
if (ch>=3) return;
|
|
isMuted[ch]=mute;
|
|
if (isMuted[ch]) {
|
|
rWrite(0x08+ch,0);
|
|
} else if (chan[ch].active && (chan[ch].nextPSGMode.val&8)) {
|
|
rWrite(0x08+ch,chan[ch].dac.out);
|
|
} else {
|
|
if (intellivision && (chan[ch].nextPSGMode.getEnvelope()) && chan[ch].active) {
|
|
rWrite(0x08+ch,(chan[ch].vol&0xc)<<2);
|
|
} else if (chan[ch].active) {
|
|
rWrite(0x08+ch,(chan[ch].outVol&15)|((chan[ch].nextPSGMode.getEnvelope())<<2));
|
|
}
|
|
}
|
|
}
|
|
|
|
void DivPlatformAY8910::forceIns() {
|
|
for (int i=0; i<4; i++) {
|
|
chan[i].curPSGMode.val&=~8;
|
|
chan[i].nextPSGMode.val&=~8;
|
|
chan[i].insChanged=true;
|
|
chan[i].freqChanged=true;
|
|
}
|
|
ayOldEnvPeriod=ayEnvPeriod>>8;
|
|
immWrite(0x0b,ayOldEnvPeriod&0xff);
|
|
immWrite(0x0c,ayOldEnvPeriod>>8);
|
|
immWrite(0x0d,ayEnvMode);
|
|
}
|
|
|
|
void* DivPlatformAY8910::getChanState(int ch) {
|
|
return &chan[ch];
|
|
}
|
|
|
|
DivMacroInt* DivPlatformAY8910::getChanMacroInt(int ch) {
|
|
return &chan[ch].std;
|
|
}
|
|
|
|
DivSamplePos DivPlatformAY8910::getSamplePos(int ch) {
|
|
if (ch>=3) return DivSamplePos();
|
|
return DivSamplePos(
|
|
chan[ch].dac.sample,
|
|
chan[ch].dac.pos,
|
|
chan[ch].dac.rate
|
|
);
|
|
}
|
|
|
|
DivDispatchOscBuffer* DivPlatformAY8910::getOscBuffer(int ch) {
|
|
return (ch<3)?oscBuf[ch]:NULL;
|
|
}
|
|
|
|
int DivPlatformAY8910::mapVelocity(int ch, float vel) {
|
|
return round(15.0*pow(vel,0.33));
|
|
}
|
|
|
|
float DivPlatformAY8910::getGain(int ch, int vol) {
|
|
if (vol==0) return 0;
|
|
return 1.0/pow(10.0,(float)(15-vol)*2.0/20.0);
|
|
}
|
|
|
|
unsigned char* DivPlatformAY8910::getRegisterPool() {
|
|
return regPool;
|
|
}
|
|
|
|
int DivPlatformAY8910::getRegisterPoolSize() {
|
|
return 16;
|
|
}
|
|
|
|
void DivPlatformAY8910::flushWrites() {
|
|
while (!writes.empty()) writes.pop();
|
|
}
|
|
|
|
bool DivPlatformAY8910::getDCOffRequired() {
|
|
return true;
|
|
}
|
|
|
|
void DivPlatformAY8910::reset() {
|
|
while (!writes.empty()) writes.pop();
|
|
ay->device_reset();
|
|
memset(regPool,0,16);
|
|
for (int i=0; i<4; i++) {
|
|
chan[i]=DivPlatformAY8910::Channel();
|
|
chan[i].std.setEngine(parent);
|
|
chan[i].vol=0x0f;
|
|
}
|
|
if (dumpWrites) {
|
|
addWrite(0xffffffff,0);
|
|
}
|
|
|
|
SSG_Reset(&ay_atomic);
|
|
SSG_SetType(&ay_atomic,
|
|
(yamaha?0:1)|
|
|
(intellivision?2:0)
|
|
);
|
|
|
|
for (int i=0; i<16; i++) {
|
|
oldWrites[i]=-1;
|
|
pendingWrites[i]=-1;
|
|
}
|
|
|
|
sampleBank=0;
|
|
ayNoisePeriod=0;
|
|
ayEnvPeriod=0;
|
|
ayOldEnvPeriod=0;
|
|
ayEnvMode=0;
|
|
ayEnvSlide=0;
|
|
ayEnvSlideLow=0;
|
|
|
|
delay=0;
|
|
lastOut[0]=0;
|
|
lastOut[1]=0;
|
|
|
|
ioPortA=false;
|
|
ioPortB=false;
|
|
portAVal=0;
|
|
portBVal=0;
|
|
}
|
|
|
|
int DivPlatformAY8910::getOutputCount() {
|
|
return 2;
|
|
}
|
|
|
|
bool DivPlatformAY8910::keyOffAffectsArp(int ch) {
|
|
return true;
|
|
}
|
|
|
|
bool DivPlatformAY8910::hasAcquireDirect() {
|
|
return (!selCore || intellivision);
|
|
}
|
|
|
|
bool DivPlatformAY8910::getLegacyAlwaysSetVolume() {
|
|
return false;
|
|
}
|
|
|
|
void DivPlatformAY8910::notifyInsDeletion(void* ins) {
|
|
for (int i=0; i<4; i++) {
|
|
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
|
}
|
|
}
|
|
|
|
void DivPlatformAY8910::poke(unsigned int addr, unsigned short val) {
|
|
immWrite(addr,val);
|
|
}
|
|
|
|
void DivPlatformAY8910::poke(std::vector<DivRegWrite>& wlist) {
|
|
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
|
|
}
|
|
|
|
void DivPlatformAY8910::setExtClockDiv(unsigned int eclk, unsigned char ediv) {
|
|
if (extMode) {
|
|
extClock=eclk;
|
|
extDiv=ediv;
|
|
}
|
|
}
|
|
|
|
void DivPlatformAY8910::setCore(unsigned char core) {
|
|
selCore=core;
|
|
}
|
|
|
|
void DivPlatformAY8910::setFlags(const DivConfig& flags) {
|
|
if (extMode) {
|
|
chipClock=extClock;
|
|
rate=chipClock/extDiv;
|
|
clockSel=false;
|
|
dacRate=chipClock/dacRateDiv;
|
|
} else {
|
|
switch (flags.getInt("clockSel",0)) {
|
|
case 1:
|
|
chipClock=COLOR_PAL*2.0/5.0;
|
|
break;
|
|
case 2:
|
|
chipClock=1750000;
|
|
break;
|
|
case 3:
|
|
chipClock=2000000;
|
|
break;
|
|
case 4:
|
|
chipClock=1500000;
|
|
break;
|
|
case 5:
|
|
chipClock=1000000;
|
|
break;
|
|
case 6:
|
|
chipClock=COLOR_NTSC/4.0;
|
|
break;
|
|
case 7:
|
|
chipClock=COLOR_PAL*3.0/8.0;
|
|
break;
|
|
case 8:
|
|
chipClock=COLOR_PAL*3.0/16.0;
|
|
break;
|
|
case 9:
|
|
chipClock=COLOR_PAL/4.0;
|
|
break;
|
|
case 10:
|
|
chipClock=2097152;
|
|
break;
|
|
case 11:
|
|
chipClock=COLOR_NTSC;
|
|
break;
|
|
case 12:
|
|
chipClock=3600000;
|
|
break;
|
|
case 13:
|
|
chipClock=20000000/16;
|
|
break;
|
|
case 14:
|
|
chipClock=1536000;
|
|
break;
|
|
case 15:
|
|
chipClock=38400*13*4; // 31948800/16
|
|
break;
|
|
default:
|
|
chipClock=COLOR_NTSC/2.0;
|
|
break;
|
|
}
|
|
CHECK_CUSTOM_CLOCK;
|
|
}
|
|
|
|
if (ay!=NULL) delete ay;
|
|
switch (flags.getInt("chipType",0)) {
|
|
case 1:
|
|
clockSel=flags.getBool("halfClock",false);
|
|
ay=new ym2149_device(rate,clockSel);
|
|
yamaha=true;
|
|
sunsoft=false;
|
|
intellivision=false;
|
|
break;
|
|
case 2:
|
|
ay=new sunsoft_5b_sound_device(rate);
|
|
yamaha=true;
|
|
sunsoft=true;
|
|
intellivision=false;
|
|
clockSel=false;
|
|
break;
|
|
case 3:
|
|
ay=new ay8914_device(rate);
|
|
yamaha=false;
|
|
sunsoft=false;
|
|
intellivision=true;
|
|
clockSel=false;
|
|
break;
|
|
default:
|
|
ay=new ay8910_device(rate);
|
|
yamaha=false;
|
|
sunsoft=false;
|
|
intellivision=false;
|
|
clockSel=false;
|
|
break;
|
|
}
|
|
ay->device_start();
|
|
ay->device_reset();
|
|
|
|
if (selCore && !intellivision) {
|
|
rate=chipClock/2;
|
|
dacRate=chipClock*2;
|
|
if (sunsoft || clockSel) {
|
|
rate=chipClock/4;
|
|
dacRate=chipClock/2;
|
|
}
|
|
} else {
|
|
rate=chipClock/8;
|
|
dacRate=rate;
|
|
}
|
|
|
|
for (int i=0; i<3; i++) {
|
|
oscBuf[i]->setRate(rate);
|
|
}
|
|
|
|
stereo=flags.getBool("stereo",false);
|
|
stereoSep=flags.getInt("stereoSep",0)&255;
|
|
extendedSsg=false;
|
|
envRawMode=flags.getBool("envRawMode",false);
|
|
switch (flags.getInt("panLaw",0)) {
|
|
case 1:
|
|
centerVol=sqrtf((stereoSep+256)/512.f)*256.f;
|
|
sideVol=sqrtf(stereoSep/256.f)*256.f;
|
|
break;
|
|
case 2:
|
|
centerVol=(stereoSep+256)/2;
|
|
sideVol=stereoSep;
|
|
break;
|
|
default:
|
|
centerVol=256;
|
|
sideVol=stereoSep;
|
|
break;
|
|
}
|
|
}
|
|
|
|
int DivPlatformAY8910::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
|
|
parent=p;
|
|
dumpWrites=false;
|
|
skipRegisterWrites=false;
|
|
for (int i=0; i<3; i++) {
|
|
isMuted[i]=false;
|
|
oscBuf[i]=new DivDispatchOscBuffer;
|
|
}
|
|
ay=NULL;
|
|
setFlags(flags);
|
|
reset();
|
|
return extendedSsg?4:3;
|
|
}
|
|
|
|
void DivPlatformAY8910::setExtended(bool extended) {
|
|
extendedSsg=extended;
|
|
}
|
|
|
|
void DivPlatformAY8910::quit() {
|
|
for (int i=0; i<3; i++) {
|
|
delete oscBuf[i];
|
|
}
|
|
if (ay!=NULL) delete ay;
|
|
}
|