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T6W28: VGM export

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tildearrow 2022-10-16 01:27:39 -05:00
parent 340a70653b
commit 285d81c716
2 changed files with 32 additions and 3 deletions
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2
src/engine/sysDef.cpp
View file

@ -1657,7 +1657,7 @@ void DivEngine::registerSystems() {
sysDefs[DIV_SYSTEM_T6W28]=new DivSysDef(
// 0x0a = wild guess. it may as well be 0x83
"T6W28", NULL, 0xbf, 0x0a, 4, false, true, 0, false, 0,
"T6W28", NULL, 0xbf, 0x0a, 4, false, true, 0x160, false, 0,
"an SN76489 derivative used in Neo Geo Pocket, has independent stereo volume and noise channel frequency.",
{"Square 1", "Square 2", "Square 3", "Noise"},
{"S1", "S2", "S3", "NO"},

33
src/engine/vgmOps.cpp
View file

@ -79,6 +79,14 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(0x90|(i<<5)|15);
}
break;
case DIV_SYSTEM_T6W28:
for (int i=0; i<4; i++) {
w->writeC(0x30);
w->writeC(0x90|(i<<5)|15);
w->writeC(0x50);
w->writeC(0x90|(i<<5)|15);
}
break;
case DIV_SYSTEM_GB:
// square 1
w->writeC(0xb3);
@ -497,6 +505,12 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(baseAddr2|12);
w->writeC(1);
break;
case DIV_SYSTEM_VBOY:
// isn't it amazing when a chip has a built-in reset command?
w->writeC(0xc7);
w->writeS_BE(baseAddr2S|(0x580>>2));
w->writeC(0xff);
break;
default:
break;
}
@ -559,6 +573,14 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(smsAddr);
w->writeC(write.val);
break;
case DIV_SYSTEM_T6W28:
if (write.addr) {
w->writeC(0x30);
} else {
w->writeC(0x50);
}
w->writeC(write.val);
break;
case DIV_SYSTEM_GB:
w->writeC(0xb3);
w->writeC(baseAddr2|((write.addr-16)&0xff));
@ -808,14 +830,14 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
}
#define CHIP_VOL(_id,_mult) { \
double _vol=fabs(song.systemVol[i])*4.0*_mult; \
double _vol=fabs((float)song.systemVol[i])*4.0*_mult; \
if (_vol<0.0) _vol=0.0; \
if (_vol>32767.0) _vol=32767.0; \
chipVol.push_back((_id)|(0x80000000)|(((unsigned int)_vol)<<16)); \
}
#define CHIP_VOL_SECOND(_id,_mult) { \
double _vol=fabs(song.systemVol[i])*4.0*_mult; \
double _vol=fabs((float)song.systemVol[i])*4.0*_mult; \
if (_vol<0.0) _vol=0.0; \
if (_vol>32767.0) _vol=32767.0; \
chipVol.push_back((_id)|(0x80000100)|(((unsigned int)_vol)<<16)); \
@ -1362,6 +1384,13 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
howManyChips++;
}
break;
case DIV_SYSTEM_T6W28:
if (!hasSN) {
hasSN=0xc0000000|disCont[i].dispatch->chipClock;
CHIP_VOL(0,1.0);
willExport[i]=true;
}
break;
default:
break;
}