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Nuked-OPN2 + ymfm combo option for all OPN chips

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modified Nuked doing FM and ymfm doing SSG/ADPCM
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tildearrow 2022-12-24 02:29:37 -05:00
parent 85d43a84a7
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24 changed files with 19122 additions and 20 deletions
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[submodule "extern/Nuked-OPN2"]
path = extern/Nuked-OPN2
url = https://github.com/nukeykt/Nuked-OPN2
[submodule "extern/SDL"]
path = extern/SDL
url = https://github.com/libsdl-org/SDL.git

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CMakeLists.txt
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@ -352,7 +352,7 @@ extern/adpcm/yma_codec.c
extern/adpcm/ymb_codec.c
extern/adpcm/ymz_codec.c
extern/Nuked-OPN2/ym3438.c
extern/opn/ym3438.c
extern/Nuked-PSG/ympsg.c
extern/opm/opm.c
extern/Nuked-OPLL/opll.c

1
extern/Nuked-OPN2 vendored

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Subproject commit b0e9de0f816943ad3820ddfefa0fff276d659250

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# modification disclaimer
this is a modified version of Nuked-OPN2 which implements high resolution output (for OPN/OPNA/OPNB).
accuracy of OPN2 (YM2612/YM3438) should not be altered.

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# Nuked-OPN2
High accuracy Yamaha YM3438(OPN2) emulator.
The YM3438 is a CMOS variant of the YM2612 used in Sega MegaDrive(Genesis) and FM Towns.
Genesis Plus GX fork with this core integrated is available here: https://github.com/nukeykt/Genesis-Plus-GX
# Features:
- Based on YM3438 die shot reverse engineering and thus provides very high emulation accuracy.
- Cycle-accurate.
- Undocumented registers/features emulation.
- SSG-EG, CSM mode emulation.
- Compatible with the YM2612.
# API documention
```
void OPN2_Reset(ym3438_t *chip) - Reset emulated chip
void OPN2_Clock(ym3438_t *chip, Bit32s *buffer) - Advances emulated chip state by 1 internal clock(6 master clocks). Writes signed 9-bit MOL, MOR pin states to buffer.
void OPN2_Write(ym3438_t *chip, Bit32u port, Bit8u data) - Write 8-bit data to port.
void OPN2_SetTestPin(ym3438_t *chip, Bit32u value) - Set TEST pin value.
Bit32u OPN2_ReadTestPin(ym3438_t *chip) - Read TEST pin value.
Bit32u OPN2_ReadIRQPin(ym3438_t *chip) - Read IRQ pin value.
Bit8u OPN2_Read(ym3438_t *chip, Bit32u port) - Read chip status.
```
# Samples
Sonic the Hedgehog:
https://youtu.be/ImmKy_-pJ8g
Sega CD BIOS v1.10:
https://youtu.be/s-8ASMbtojQ

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/*
* Copyright (C) 2017-2021 Alexey Khokholov (Nuke.YKT)
*
* This file is part of Nuked OPN2.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Nuked OPN2(Yamaha YM3438) emulator.
* Thanks:
* Silicon Pr0n:
* Yamaha YM3438 decap and die shot(digshadow).
* OPLx decapsulated(Matthew Gambrell, Olli Niemitalo):
* OPL2 ROMs.
*
* version: 1.0.9
*/
#ifndef YM3438_H
#define YM3438_H
#ifdef __cplusplus
extern "C" {
#endif
enum {
ym3438_mode_ym2612 = 0x01, /* Enables YM2612 emulation (MD1, MD2 VA2) */
ym3438_mode_readmode = 0x02, /* Enables status read on any port (TeraDrive, MD1 VA7, MD2, etc) */
ym3438_mode_opn = 0x04 /* Outputs full, unshifted signal per channel (OPN/OPNA/OPNB) */
};
#include <stdint.h>
typedef uintptr_t Bitu;
typedef intptr_t Bits;
typedef uint64_t Bit64u;
typedef int64_t Bit64s;
typedef uint32_t Bit32u;
typedef int32_t Bit32s;
typedef uint16_t Bit16u;
typedef int16_t Bit16s;
typedef uint8_t Bit8u;
typedef int8_t Bit8s;
typedef struct
{
Bit32u cycles;
Bit32u channel;
Bit16s mol, mor;
/* IO */
Bit16u write_data;
Bit8u write_a;
Bit8u write_d;
Bit8u write_a_en;
Bit8u write_d_en;
Bit8u write_busy;
Bit8u write_busy_cnt;
Bit8u write_fm_address;
Bit8u write_fm_data;
Bit16u write_fm_mode_a;
Bit16u address;
Bit8u data;
Bit8u pin_test_in;
Bit8u pin_irq;
Bit8u busy;
/* LFO */
Bit8u lfo_en;
Bit8u lfo_freq;
Bit8u lfo_pm;
Bit8u lfo_am;
Bit8u lfo_cnt;
Bit8u lfo_inc;
Bit8u lfo_quotient;
/* Phase generator */
Bit16u pg_fnum;
Bit8u pg_block;
Bit8u pg_kcode;
Bit32u pg_inc[24];
Bit32u pg_phase[24];
Bit8u pg_reset[24];
Bit32u pg_read;
/* Envelope generator */
Bit8u eg_cycle;
Bit8u eg_cycle_stop;
Bit8u eg_shift;
Bit8u eg_shift_lock;
Bit8u eg_timer_low_lock;
Bit16u eg_timer;
Bit8u eg_timer_inc;
Bit16u eg_quotient;
Bit8u eg_custom_timer;
Bit8u eg_rate;
Bit8u eg_ksv;
Bit8u eg_inc;
Bit8u eg_ratemax;
Bit8u eg_sl[2];
Bit8u eg_lfo_am;
Bit8u eg_tl[2];
Bit8u eg_state[24];
Bit16u eg_level[24];
Bit16u eg_out[24];
Bit8u eg_kon[24];
Bit8u eg_kon_csm[24];
Bit8u eg_kon_latch[24];
Bit8u eg_csm_mode[24];
Bit8u eg_ssg_enable[24];
Bit8u eg_ssg_pgrst_latch[24];
Bit8u eg_ssg_repeat_latch[24];
Bit8u eg_ssg_hold_up_latch[24];
Bit8u eg_ssg_dir[24];
Bit8u eg_ssg_inv[24];
Bit32u eg_read[2];
Bit8u eg_read_inc;
/* Settings */
Bit8u chip_type;
/* FM */
Bit16s fm_op1[6][2];
Bit16s fm_op2[6];
Bit16s fm_out[24];
Bit16u fm_mod[24];
/* Channel */
Bit16s ch_acc[6];
Bit16s ch_out[6];
Bit16s ch_lock;
Bit8u ch_lock_l;
Bit8u ch_lock_r;
Bit16s ch_read;
/* Timer */
Bit16u timer_a_cnt;
Bit16u timer_a_reg;
Bit8u timer_a_load_lock;
Bit8u timer_a_load;
Bit8u timer_a_enable;
Bit8u timer_a_reset;
Bit8u timer_a_load_latch;
Bit8u timer_a_overflow_flag;
Bit8u timer_a_overflow;
Bit16u timer_b_cnt;
Bit8u timer_b_subcnt;
Bit16u timer_b_reg;
Bit8u timer_b_load_lock;
Bit8u timer_b_load;
Bit8u timer_b_enable;
Bit8u timer_b_reset;
Bit8u timer_b_load_latch;
Bit8u timer_b_overflow_flag;
Bit8u timer_b_overflow;
/* Register set */
Bit8u mode_test_21[8];
Bit8u mode_test_2c[8];
Bit8u mode_ch3;
Bit8u mode_kon_channel;
Bit8u mode_kon_operator[4];
Bit8u mode_kon[24];
Bit8u mode_csm;
Bit8u mode_kon_csm;
Bit8u dacen;
Bit16s dacdata;
Bit8u ks[24];
Bit8u ar[24];
Bit8u sr[24];
Bit8u dt[24];
Bit8u multi[24];
Bit8u sl[24];
Bit8u rr[24];
Bit8u dr[24];
Bit8u am[24];
Bit8u tl[24];
Bit8u ssg_eg[24];
Bit16u fnum[6];
Bit8u block[6];
Bit8u kcode[6];
Bit16u fnum_3ch[6];
Bit8u block_3ch[6];
Bit8u kcode_3ch[6];
Bit8u reg_a4;
Bit8u reg_ac;
Bit8u connect[6];
Bit8u fb[6];
Bit8u pan_l[6], pan_r[6];
Bit8u ams[6];
Bit8u pms[6];
Bit8u status;
Bit32u status_time;
} ym3438_t;
void OPN2_Reset(ym3438_t *chip);
void OPN2_SetChipType(ym3438_t *chip, Bit32u type);
void OPN2_Clock(ym3438_t *chip, Bit16s *buffer);
void OPN2_Write(ym3438_t *chip, Bit32u port, Bit8u data);
void OPN2_SetTestPin(ym3438_t *chip, Bit32u value);
Bit32u OPN2_ReadTestPin(ym3438_t *chip);
Bit32u OPN2_ReadIRQPin(ym3438_t *chip);
Bit8u OPN2_Read(ym3438_t *chip, Bit32u port);
#ifdef __cplusplus
}
#endif
#endif

16454
extern/opn/ym3438.svg vendored Normal file
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File diff suppressed because one or more lines are too long
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After

Width:  |  Height:  |  Size: 804 KiB

8
src/engine/dispatchContainer.cpp
View file

@ -248,16 +248,20 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
case DIV_SYSTEM_YM2610:
case DIV_SYSTEM_YM2610_FULL:
dispatch=new DivPlatformYM2610;
((DivPlatformYM2610*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_YM2610_EXT:
case DIV_SYSTEM_YM2610_FULL_EXT:
dispatch=new DivPlatformYM2610Ext;
((DivPlatformYM2610Ext*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_YM2610B:
dispatch=new DivPlatformYM2610B;
((DivPlatformYM2610B*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_YM2610B_EXT:
dispatch=new DivPlatformYM2610BExt;
((DivPlatformYM2610BExt*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_AMIGA:
dispatch=new DivPlatformAmiga;
@ -277,15 +281,19 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
break;
case DIV_SYSTEM_YM2203:
dispatch=new DivPlatformYM2203;
((DivPlatformYM2203*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_YM2203_EXT:
dispatch=new DivPlatformYM2203Ext;
((DivPlatformYM2203Ext*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_YM2608:
dispatch=new DivPlatformYM2608;
((DivPlatformYM2608*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_YM2608_EXT:
dispatch=new DivPlatformYM2608Ext;
((DivPlatformYM2608Ext*)dispatch)->setCombo(eng->getConfInt("opnCore",1)==1);
break;
case DIV_SYSTEM_OPLL:
case DIV_SYSTEM_OPLL_DRUMS:

11
src/engine/platform/fmshared_OPN.h
View file

@ -21,6 +21,7 @@
#define _FMSHARED_OPN_H
#include "fmsharedbase.h"
#include "../../../extern/opn/ym3438.h"
#define PLEASE_HELP_ME(_targetChan) \
int boundaryBottom=parent->calcBaseFreq(chipClock,CHIP_FREQBASE,0,false); \
@ -153,7 +154,7 @@ class DivPlatformOPN: public DivPlatformFMBase {
unsigned int ayDiv;
unsigned char csmChan;
unsigned char lfoValue;
bool extSys;
bool extSys, useCombo;
DivConfig ayFlags;
@ -171,8 +172,12 @@ class DivPlatformOPN: public DivPlatformFMBase {
ayDiv(a),
csmChan(cc),
lfoValue(0),
extSys(isExtSys) {}
extSys(isExtSys),
useCombo(false) {}
public:
void setCombo(bool combo) {
useCombo=combo;
}
};
#endif

4
src/engine/platform/genesis.cpp
View file

@ -1150,7 +1150,7 @@ void DivPlatformGenesis::reset() {
fm_ymfm->reset();
}
OPN2_Reset(&fm);
OPN2_SetChipType(ladder?ym3438_mode_ym2612:0);
OPN2_SetChipType(&fm,ladder?ym3438_mode_ym2612:0);
if (dumpWrites) {
addWrite(0xffffffff,0);
}
@ -1248,7 +1248,7 @@ void DivPlatformGenesis::setFlags(const DivConfig& flags) {
}
ladder=flags.getBool("ladderEffect",false);
noExtMacros=flags.getBool("noExtMacros",false);
OPN2_SetChipType(ladder?ym3438_mode_ym2612:0);
OPN2_SetChipType(&fm,ladder?ym3438_mode_ym2612:0);
CHECK_CUSTOM_CLOCK;
if (useYMFM) {
if (fm_ymfm!=NULL) delete fm_ymfm;

1
src/engine/platform/genesis.h
View file

@ -21,7 +21,6 @@
#define _GENESIS_H
#include "fmshared_OPN.h"
#include "../../../extern/Nuked-OPN2/ym3438.h"
#include "sound/ymfm/ymfm_opn.h"

79
src/engine/platform/ym2203.cpp
View file

@ -157,6 +157,80 @@ const char** DivPlatformYM2203::getRegisterSheet() {
}
void DivPlatformYM2203::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (useCombo) {
acquire_combo(bufL,bufR,start,len);
} else {
acquire_ymfm(bufL,bufR,start,len);
}
}
void DivPlatformYM2203::acquire_combo(short* bufL, short* bufR, size_t start, size_t len) {
static int os;
static short ignored[2];
for (size_t h=start; h<start+len; h++) {
os=0;
// Nuked part
for (unsigned int i=0; i<nukedMult; i++) {
if (!writes.empty()) {
if (--delay<1 && !(fm->read(0)&0x80)) {
QueuedWrite& w=writes.front();
if (w.addr<=0x1c || w.addr==0x2d || w.addr==0x2e || w.addr==0x2f) {
// ymfm write
fm->write(0x0,w.addr);
fm->write(0x1,w.val);
regPool[w.addr&0xff]=w.val;
writes.pop_front();
delay=1;
} else {
// Nuked write
if (w.addrOrVal) {
OPN2_Write(&fm_nuked,0x1,w.val);
regPool[w.addr&0xff]=w.val;
writes.pop_front();
} else {
lastBusy++;
if (fm_nuked.write_busy==0) {
OPN2_Write(&fm_nuked,0x0,w.addr);
w.addrOrVal=true;
}
}
}
}
}
OPN2_Clock(&fm_nuked,ignored);
}
os=(
(fm_nuked.ch_out[0])+
(fm_nuked.ch_out[1])+
(fm_nuked.ch_out[2])
);
os&=~3;
// ymfm part
fm->generate(&fmout);
os+=((fmout.data[1]+fmout.data[2]+fmout.data[3])>>1);
if (os<-32768) os=-32768;
if (os>32767) os=32767;
bufL[h]=os;
for (int i=0; i<3; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[i];
}
for (int i=3; i<6; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fmout.data[i-2];
}
}
}
void DivPlatformYM2203::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
static int os;
ymfm::ym2203::fm_engine* fme=fm->debug_fm_engine();
@ -857,6 +931,8 @@ void DivPlatformYM2203::reset() {
if (dumpWrites) {
addWrite(0xffffffff,0);
}
OPN2_Reset(&fm_nuked);
OPN2_SetChipType(&fm_nuked,ym3438_mode_opn);
fm->reset();
for (int i=0; i<6; i++) {
chan[i]=DivPlatformOPN::OPNChannel();
@ -946,18 +1022,21 @@ void DivPlatformYM2203::setFlags(const DivConfig& flags) {
fmFreqBase=4720270.0/2.0,
fmDivBase=18,
ayDiv=8;
nukedMult=16;
break;
case 0x02: // /2
prescale=0x2f;
fmFreqBase=4720270.0/3.0,
fmDivBase=12,
ayDiv=4;
nukedMult=24;
break;
default: // /6
prescale=0x2d;
fmFreqBase=4720270.0,
fmDivBase=36,
ayDiv=16;
nukedMult=8;
break;
}
CHECK_CUSTOM_CLOCK;

7
src/engine/platform/ym2203.h
View file

@ -42,6 +42,7 @@ class DivPlatformYM2203: public DivPlatformOPN {
OPNChannel chan[6];
DivDispatchOscBuffer* oscBuf[6];
bool isMuted[6];
ym3438_t fm_nuked;
ymfm::ym2203* fm;
ymfm::ym2203::output_data fmout;
DivYM2203Interface iface;
@ -50,9 +51,13 @@ class DivPlatformYM2203: public DivPlatformOPN {
unsigned char sampleBank;
bool extMode, noExtMacros;
unsigned char prescale;
unsigned char prescale, nukedMult;
friend void putDispatchChip(void*,int);
void acquire_combo(short* bufL, short* bufR, size_t start, size_t len);
void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);

115
src/engine/platform/ym2608.cpp
View file

@ -298,6 +298,116 @@ double DivPlatformYM2608::NOTE_ADPCMB(int note) {
}
void DivPlatformYM2608::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (useCombo) {
acquire_combo(bufL,bufR,start,len);
} else {
acquire_ymfm(bufL,bufR,start,len);
}
}
void DivPlatformYM2608::acquire_combo(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
static short ignored[2];
ymfm::ssg_engine* ssge=fm->debug_ssg_engine();
ymfm::adpcm_a_engine* aae=fm->debug_adpcm_a_engine();
ymfm::adpcm_b_engine* abe=fm->debug_adpcm_b_engine();
ymfm::ssg_engine::output_data ssgOut;
ymfm::adpcm_a_channel* adpcmAChan[6];
for (int i=0; i<6; i++) {
adpcmAChan[i]=aae->debug_channel(i);
}
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
// Nuked part
for (int i=0; i<nukedMult; i++) {
if (!writes.empty()) {
if (--delay<1 && !(fm->read(0)&0x80)) {
QueuedWrite& w=writes.front();
if (w.addr<=0x1c || w.addr==0x2d || w.addr==0x2e || w.addr==0x2f || (w.addr>=0x100 && w.addr<=0x12d)) {
// ymfm write
fm->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
delay=1;
} else {
// Nuked write
if (w.addrOrVal) {
OPN2_Write(&fm_nuked,0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
} else {
lastBusy++;
if (fm_nuked.write_busy==0) {
OPN2_Write(&fm_nuked,0x0+((w.addr>>8)<<1),w.addr);
w.addrOrVal=true;
}
}
}
}
}
OPN2_Clock(&fm_nuked,ignored);
}
os[0]=(
(fm_nuked.pan_l[0]?fm_nuked.ch_out[0]:0)+
(fm_nuked.pan_l[1]?fm_nuked.ch_out[1]:0)+
(fm_nuked.pan_l[2]?fm_nuked.ch_out[2]:0)+
(fm_nuked.pan_l[3]?fm_nuked.ch_out[3]:0)+
(fm_nuked.pan_l[4]?fm_nuked.ch_out[4]:0)+
(fm_nuked.pan_l[5]?fm_nuked.ch_out[5]:0)
);
os[1]=(
(fm_nuked.pan_r[0]?fm_nuked.ch_out[0]:0)+
(fm_nuked.pan_r[1]?fm_nuked.ch_out[1]:0)+
(fm_nuked.pan_r[2]?fm_nuked.ch_out[2]:0)+
(fm_nuked.pan_r[3]?fm_nuked.ch_out[3]:0)+
(fm_nuked.pan_r[4]?fm_nuked.ch_out[4]:0)+
(fm_nuked.pan_r[5]?fm_nuked.ch_out[5]:0)
);
os[0]>>=1;
os[1]>>=1;
// ymfm part
fm->generate(&fmout);
os[0]+=fmout.data[0]+(fmout.data[2]>>1);
if (os[0]<-32768) os[0]=-32768;
if (os[0]>32767) os[0]=32767;
os[1]+=fmout.data[1]+(fmout.data[2]>>1);
if (os[1]<-32768) os[1]=-32768;
if (os[1]>32767) os[1]=32767;
bufL[h]=os[0];
bufR[h]=os[1];
for (int i=0; i<psgChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[i];
}
ssge->get_last_out(ssgOut);
for (int i=psgChanOffs; i<adpcmAChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs];
}
for (int i=adpcmAChanOffs; i<adpcmBChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1);
}
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
}
}
void DivPlatformYM2608::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
ymfm::ym2608::fm_engine* fme=fm->debug_fm_engine();
@ -1256,6 +1366,8 @@ void DivPlatformYM2608::reset() {
if (dumpWrites) {
addWrite(0xffffffff,0);
}
OPN2_Reset(&fm_nuked);
OPN2_SetChipType(&fm_nuked,ym3438_mode_opn);
fm->reset();
for (int i=0; i<16; i++) {
chan[i]=DivPlatformOPN::OPNChannelStereo();
@ -1407,18 +1519,21 @@ void DivPlatformYM2608::setFlags(const DivConfig& flags) {
fmFreqBase=9440540.0/2.0,
fmDivBase=36,
ayDiv=16;
nukedMult=16;
break;
case 0x02: // /2
prescale=0x2f;
fmFreqBase=9440540.0/3.0,
fmDivBase=24,
ayDiv=8;
nukedMult=24;
break;
default: // /6
prescale=0x2d;
fmFreqBase=9440540.0,
fmDivBase=72,
ayDiv=32;
nukedMult=8;
break;
}
CHECK_CUSTOM_CLOCK;

7
src/engine/platform/ym2608.h
View file

@ -47,6 +47,7 @@ class DivPlatformYM2608: public DivPlatformOPN {
OPNChannelStereo chan[16];
DivDispatchOscBuffer* oscBuf[16];
bool isMuted[16];
ym3438_t fm_nuked;
ymfm::ym2608* fm;
ymfm::ym2608::output_data fmout;
@ -62,12 +63,16 @@ class DivPlatformYM2608: public DivPlatformOPN {
int globalRSSVolume;
bool extMode, noExtMacros;
unsigned char prescale;
unsigned char prescale, nukedMult;
double NOTE_OPNB(int ch, int note);
double NOTE_ADPCMB(int note);
friend void putDispatchChip(void*,int);
void acquire_combo(short* bufL, short* bufR, size_t start, size_t len);
void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);

110
src/engine/platform/ym2610.cpp
View file

@ -233,6 +233,112 @@ const char** DivPlatformYM2610::getRegisterSheet() {
}
void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (useCombo) {
acquire_combo(bufL,bufR,start,len);
} else {
acquire_ymfm(bufL,bufR,start,len);
}
}
void DivPlatformYM2610::acquire_combo(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
static short ignored[2];
ymfm::ssg_engine* ssge=fm->debug_ssg_engine();
ymfm::adpcm_a_engine* aae=fm->debug_adpcm_a_engine();
ymfm::adpcm_b_engine* abe=fm->debug_adpcm_b_engine();
ymfm::ssg_engine::output_data ssgOut;
ymfm::adpcm_a_channel* adpcmAChan[6];
for (int i=0; i<6; i++) {
adpcmAChan[i]=aae->debug_channel(i);
}
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
// Nuked part
for (int i=0; i<24; i++) {
if (!writes.empty()) {
if (--delay<1 && !(fm->read(0)&0x80)) {
QueuedWrite& w=writes.front();
if (w.addr<=0x1c || (w.addr>=0x100 && w.addr<=0x12d)) {
// ymfm write
fm->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
delay=32;
} else {
// Nuked write
if (w.addrOrVal) {
OPN2_Write(&fm_nuked,0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
} else {
lastBusy++;
if (fm_nuked.write_busy==0) {
OPN2_Write(&fm_nuked,0x0+((w.addr>>8)<<1),w.addr);
w.addrOrVal=true;
}
}
}
}
}
OPN2_Clock(&fm_nuked,ignored);
}
os[0]=(
(fm_nuked.pan_l[1]?fm_nuked.ch_out[1]:0)+
(fm_nuked.pan_l[2]?fm_nuked.ch_out[2]:0)+
(fm_nuked.pan_l[4]?fm_nuked.ch_out[4]:0)+
(fm_nuked.pan_l[5]?fm_nuked.ch_out[5]:0)
);
os[1]=(
(fm_nuked.pan_r[1]?fm_nuked.ch_out[1]:0)+
(fm_nuked.pan_r[2]?fm_nuked.ch_out[2]:0)+
(fm_nuked.pan_r[4]?fm_nuked.ch_out[4]:0)+
(fm_nuked.pan_r[5]?fm_nuked.ch_out[5]:0)
);
os[0]>>=1;
os[1]>>=1;
// ymfm part
fm->generate(&fmout);
os[0]+=fmout.data[0]+(fmout.data[2]>>1);
if (os[0]<-32768) os[0]=-32768;
if (os[0]>32767) os[0]=32767;
os[1]+=fmout.data[1]+(fmout.data[2]>>1);
if (os[1]<-32768) os[1]=-32768;
if (os[1]>32767) os[1]=32767;
bufL[h]=os[0];
bufR[h]=os[1];
for (int i=0; i<psgChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[bchOffs[i]];
}
ssge->get_last_out(ssgOut);
for (int i=psgChanOffs; i<adpcmAChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs];
}
for (int i=adpcmAChanOffs; i<adpcmBChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1);
}
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
}
}
void DivPlatformYM2610::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
ymfm::ym2610::fm_engine* fme=fm->debug_fm_engine();
@ -254,13 +360,13 @@ void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t l
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
if (!writes.empty()) {
if (--delay<1) {
if (--delay<1 && !(fm->read(0)&0x80)) {
QueuedWrite& w=writes.front();
fm->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
delay=4;
delay=1;
}
}

4
src/engine/platform/ym2610.h
View file

@ -37,6 +37,10 @@ class DivPlatformYM2610: public DivPlatformYM2610Base {
};
friend void putDispatchChip(void*,int);
void acquire_combo(short* bufL, short* bufR, size_t start, size_t len);
void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);

114
src/engine/platform/ym2610b.cpp
View file

@ -297,6 +297,116 @@ const char** DivPlatformYM2610B::getRegisterSheet() {
}
void DivPlatformYM2610B::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (useCombo) {
acquire_combo(bufL,bufR,start,len);
} else {
acquire_ymfm(bufL,bufR,start,len);
}
}
void DivPlatformYM2610B::acquire_combo(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
static short ignored[2];
ymfm::ssg_engine* ssge=fm->debug_ssg_engine();
ymfm::adpcm_a_engine* aae=fm->debug_adpcm_a_engine();
ymfm::adpcm_b_engine* abe=fm->debug_adpcm_b_engine();
ymfm::ssg_engine::output_data ssgOut;
ymfm::adpcm_a_channel* adpcmAChan[6];
for (int i=0; i<6; i++) {
adpcmAChan[i]=aae->debug_channel(i);
}
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
// Nuked part
for (int i=0; i<24; i++) {
if (!writes.empty()) {
if (--delay<1 && !(fm->read(0)&0x80)) {
QueuedWrite& w=writes.front();
if (w.addr<=0x1c || (w.addr>=0x100 && w.addr<=0x12d)) {
// ymfm write
fm->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
delay=32;
} else {
// Nuked write
if (w.addrOrVal) {
OPN2_Write(&fm_nuked,0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
} else {
lastBusy++;
if (fm_nuked.write_busy==0) {
OPN2_Write(&fm_nuked,0x0+((w.addr>>8)<<1),w.addr);
w.addrOrVal=true;
}
}
}
}
}
OPN2_Clock(&fm_nuked,ignored);
}
os[0]=(
(fm_nuked.pan_l[0]?fm_nuked.ch_out[0]:0)+
(fm_nuked.pan_l[1]?fm_nuked.ch_out[1]:0)+
(fm_nuked.pan_l[2]?fm_nuked.ch_out[2]:0)+
(fm_nuked.pan_l[3]?fm_nuked.ch_out[3]:0)+
(fm_nuked.pan_l[4]?fm_nuked.ch_out[4]:0)+
(fm_nuked.pan_l[5]?fm_nuked.ch_out[5]:0)
);
os[1]=(
(fm_nuked.pan_r[0]?fm_nuked.ch_out[0]:0)+
(fm_nuked.pan_r[1]?fm_nuked.ch_out[1]:0)+
(fm_nuked.pan_r[2]?fm_nuked.ch_out[2]:0)+
(fm_nuked.pan_r[3]?fm_nuked.ch_out[3]:0)+
(fm_nuked.pan_r[4]?fm_nuked.ch_out[4]:0)+
(fm_nuked.pan_r[5]?fm_nuked.ch_out[5]:0)
);
os[0]>>=1;
os[1]>>=1;
// ymfm part
fm->generate(&fmout);
os[0]+=fmout.data[0]+(fmout.data[2]>>1);
if (os[0]<-32768) os[0]=-32768;
if (os[0]>32767) os[0]=32767;
os[1]+=fmout.data[1]+(fmout.data[2]>>1);
if (os[1]<-32768) os[1]=-32768;
if (os[1]>32767) os[1]=32767;
bufL[h]=os[0];
bufR[h]=os[1];
for (int i=0; i<psgChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[i];
}
ssge->get_last_out(ssgOut);
for (int i=psgChanOffs; i<adpcmAChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs];
}
for (int i=adpcmAChanOffs; i<adpcmBChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1);
}
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
}
}
void DivPlatformYM2610B::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
ymfm::ym2610b::fm_engine* fme=fm->debug_fm_engine();
@ -316,13 +426,13 @@ void DivPlatformYM2610B::acquire(short* bufL, short* bufR, size_t start, size_t
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
if (!writes.empty()) {
if (--delay<1) {
if (--delay<1 && !(fm->read(0)&0x80)) {
QueuedWrite& w=writes.front();
fm->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
delay=4;
delay=1;
}
}

4
src/engine/platform/ym2610b.h
View file

@ -33,6 +33,10 @@ class DivPlatformYM2610B: public DivPlatformYM2610Base {
};
friend void putDispatchChip(void*,int);
void acquire_combo(short* bufL, short* bufR, size_t start, size_t len);
void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);

8
src/engine/platform/ym2610shared.h
View file

@ -50,6 +50,7 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
DivDispatchOscBuffer* oscBuf[16];
bool isMuted[16];
ym3438_t fm_nuked;
ymfm::ym2610b* fm;
ymfm::ym2610b::output_data fmout;
DivPlatformAY8910* ay;
@ -95,6 +96,9 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
writeADPCMAOn=0;
globalADPCMAVolume=0x3f;
OPN2_Reset(&fm_nuked);
OPN2_SetChipType(&fm_nuked,ym3438_mode_opn);
ay->reset();
ay->getRegisterWrites().clear();
ay->flushWrites();
@ -217,7 +221,7 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
}
CHECK_CUSTOM_CLOCK;
noExtMacros=flags.getBool("noExtMacros",false);
rate=chipClock/16;
rate=fm->sample_rate(chipClock);
for (int i=0; i<16; i++) {
oscBuf[i]->rate=rate;
}
@ -240,7 +244,7 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
iface.adpcmBMem=adpcmBMem;
iface.sampleBank=0;
fm=new ymfm::ym2610b(iface);
fm->set_fidelity(ymfm::OPN_FIDELITY_MAX);
fm->set_fidelity(ymfm::OPN_FIDELITY_MED);
setFlags(flags);
// YM2149, 2MHz
ay=new DivPlatformAY8910(true,chipClock,32);

2
src/gui/gui.h
View file

@ -1179,6 +1179,7 @@ class FurnaceGUI {
int fdsCore;
int c64Core;
int pokeyCore;
int opnCore;
int pcSpeakerOutMethod;
String yrw801Path;
String tg100Path;
@ -1312,6 +1313,7 @@ class FurnaceGUI {
fdsCore(0),
c64Core(1),
pokeyCore(1),
opnCore(1),
pcSpeakerOutMethod(0),
yrw801Path(""),
tg100Path(""),

15
src/gui/settings.cpp
View file

@ -107,6 +107,11 @@ const char* pokeyCores[]={
"ASAP (C++ port)"
};
const char* opnCores[]={
"ymfm only",
"Nuked-OPN2 (FM) + ymfm (SSG/ADPCM)"
};
const char* pcspkrOutMethods[]={
"evdev SND_TONE",
"KIOCSOUND on /dev/tty1",
@ -1078,6 +1083,10 @@ void FurnaceGUI::drawSettings() {
ImGui::SameLine();
ImGui::Combo("##POKEYCore",&settings.pokeyCore,pokeyCores,2);
ImGui::Text("OPN/OPNA/OPNB cores");
ImGui::SameLine();
ImGui::Combo("##OPNCore",&settings.opnCore,opnCores,2);
ImGui::Separator();
ImGui::Text("PC Speaker strategy");
@ -2346,6 +2355,7 @@ void FurnaceGUI::syncSettings() {
settings.fdsCore=e->getConfInt("fdsCore",0);
settings.c64Core=e->getConfInt("c64Core",1);
settings.pokeyCore=e->getConfInt("pokeyCore",1);
settings.opnCore=e->getConfInt("opnCore",1);
settings.pcSpeakerOutMethod=e->getConfInt("pcSpeakerOutMethod",0);
settings.yrw801Path=e->getConfString("yrw801Path","");
settings.tg100Path=e->getConfString("tg100Path","");
@ -2472,6 +2482,7 @@ void FurnaceGUI::syncSettings() {
clampSetting(settings.fdsCore,0,1);
clampSetting(settings.c64Core,0,1);
clampSetting(settings.pokeyCore,0,1);
clampSetting(settings.opnCore,0,1);
clampSetting(settings.pcSpeakerOutMethod,0,4);
clampSetting(settings.mainFont,0,6);
clampSetting(settings.patFont,0,6);
@ -2616,7 +2627,8 @@ void FurnaceGUI::commitSettings() {
settings.nesCore!=e->getConfInt("nesCore",0) ||
settings.fdsCore!=e->getConfInt("fdsCore",0) ||
settings.c64Core!=e->getConfInt("c64Core",1) ||
settings.pokeyCore!=e->getConfInt("pokeyCore",1)
settings.pokeyCore!=e->getConfInt("pokeyCore",1) ||
settings.opnCore!=e->getConfInt("opnCore",1)
);
e->setConf("mainFontSize",settings.mainFontSize);
@ -2637,6 +2649,7 @@ void FurnaceGUI::commitSettings() {
e->setConf("fdsCore",settings.fdsCore);
e->setConf("c64Core",settings.c64Core);
e->setConf("pokeyCore",settings.pokeyCore);
e->setConf("opnCore",settings.opnCore);
e->setConf("pcSpeakerOutMethod",settings.pcSpeakerOutMethod);
e->setConf("yrw801Path",settings.yrw801Path);
e->setConf("tg100Path",settings.tg100Path);