void NinSnesScanner::SearchForNinSnesFromARAM (RawFile* file)
{
NinSnesVersion version = NINSNES_NONE;
std::wstring basefilename = RawFile::removeExtFromPath(file->GetFileName());
std::wstring name = file->tag.HasTitle() ? file->tag.title : basefilename;
// get section pointer address
uint32_t ofsIncSectionPtr;
uint8_t addrSectionPtr;
uint16_t konamiBaseAddress = 0xffff;
if (file->SearchBytePattern(ptnIncSectionPtr, ofsIncSectionPtr)) {
addrSectionPtr = file->GetByte(ofsIncSectionPtr + 3);
}
// DERIVED VERSIONS
else if (file->SearchBytePattern(ptnIncSectionPtrGD3, ofsIncSectionPtr)) {
uint8_t konamiBaseAddressPtr = file->GetByte(ofsIncSectionPtr + 16);
addrSectionPtr = file->GetByte(ofsIncSectionPtr + 3);
konamiBaseAddress = file->GetShort(konamiBaseAddressPtr);
}
else if (file->SearchBytePattern(ptnIncSectionPtrYSFR, ofsIncSectionPtr)) {
addrSectionPtr = file->GetByte(ofsIncSectionPtr + 3);
}
else {
return;
}
// BEGIN DYNAMIC PATTERN DEFINITIONS
//; Kirby Super Star SPC
//; set initial value to section pointer
//08e4: f5 ff 38 mov a,$38ff+x
//08e7: fd mov y,a
//08e8: f5 fe 38 mov a,$38fe+x
//08eb: da 30 movw $30,ya
char ptnInitSectionPtrBytes[] =
"\xf5\xff\x38\xfd\xf5\xfe\x38\xda"
"\x30";
ptnInitSectionPtrBytes[8] = addrSectionPtr;
BytePattern ptnInitSectionPtr(
ptnInitSectionPtrBytes
,
"x??xx??x"
"x"
,
9);
//; Yoshi's Island SPC
//; set initial value to section pointer
//06f0: 1c asl a
//06f1: 5d mov x,a
//06f2: f5 8f ff mov a,$ff8f+x
//06f5: fd mov y,a
//06f6: d0 03 bne $06fb
//06f8: c4 04 mov $04,a
//06fa: 6f ret
//06fb: f5 8e ff mov a,$ff8e+x
//06fe: da 40 movw $40,ya
char ptnInitSectionPtrBytesYI[] =
"\x1c\x5d\xf5\x8f\xff\xfd\xd0\x03"
"\xc4\x04\x6f\xf5\x8e\xff\xda\x40";
ptnInitSectionPtrBytesYI[15] = addrSectionPtr;
BytePattern ptnInitSectionPtrYI(
ptnInitSectionPtrBytesYI
,
"xxx??xxx"
"x?xx??xx"
,
16);
//; Super Mario World SPC
//; set initial value to section pointer
//0b5f: 1c asl a
//0b60: fd mov y,a
//0b61: f6 5e 13 mov a,$135e+y
//0b64: c4 40 mov $40,a
//0b66: f6 5f 13 mov a,$135f+y
//0b69: c4 41 mov $41,a
char ptnInitSectionPtrBytesSMW[] =
"\x1c\xfd\xf6\x5e\x13\xc4\x40\xf6"
"\x5f\x13\xc4\x41";
ptnInitSectionPtrBytesSMW[6] = addrSectionPtr;
ptnInitSectionPtrBytesSMW[11] = addrSectionPtr + 1;
BytePattern ptnInitSectionPtrSMW(
ptnInitSectionPtrBytesSMW
,
"xxx??xxx"
"??xx"
,
12);
// DERIVED VERSIONS
//; Gradius 3 SPC
//08b7: 5d mov x,a
//08b8: f5 fc 11 mov a,$11fc+x
//08bb: f0 ee beq $08ab
//08bd: fd mov y,a
//08be: f5 fb 11 mov a,$11fb+x
//08c1: da 40 movw $40,ya ; song metaindex ptr
char ptnInitSectionPtrBytesGD3[] =
"\x5d\xf5\xfc\x11\xf0\xee\xfd\xf5"
"\xfb\x11\xda\x40";
ptnInitSectionPtrBytesGD3[11] = addrSectionPtr;
BytePattern ptnInitSectionPtrGD3(
ptnInitSectionPtrBytesGD3
,
"xx??x?xx"
"??xx"
,
12);
//; Yoshi's Safari SPC
//1488: fd mov y,a
//1489: f7 48 mov a,($48)+y
//148b: c4 4c mov $4c,a
//148d: fc inc y
//148e: f7 48 mov a,($48)+y
//1490: c4 4d mov $4d,a
char ptnInitSectionPtrBytesYSFR[] =
"\xfd\xf7\x48\xc4\x4c\xfc\xf7\x48"
"\xc4\x4d";
ptnInitSectionPtrBytesYSFR[4] = addrSectionPtr;
ptnInitSectionPtrBytesYSFR[9] = addrSectionPtr + 1;
BytePattern ptnInitSectionPtrYSFR(
ptnInitSectionPtrBytesYSFR
,
"xx?xxxx?"
"xx"
,
10);
// END DYNAMIC PATTERN DEFINITIONS
// ACQUIRE SEQUENCE LIST ADDRESS:
// find the initialization code of the section pointer,
// and acquire the sequence list address
uint32_t ofsInitSectionPtr;
uint32_t addrSongList;
// STANDARD VERSIONS
if (file->SearchBytePattern(ptnInitSectionPtr, ofsInitSectionPtr)) {
addrSongList = file->GetShort(ofsInitSectionPtr + 5);
}
else if (file->SearchBytePattern(ptnInitSectionPtrYI, ofsInitSectionPtr)) {
addrSongList = file->GetShort(ofsInitSectionPtr + 12);
}
else if (file->SearchBytePattern(ptnInitSectionPtrSMW, ofsInitSectionPtr)) {
addrSongList = file->GetShort(ofsInitSectionPtr + 3);
}
// DERIVED VERSIONS
else if (file->SearchBytePattern(ptnInitSectionPtrGD3, ofsInitSectionPtr)) {
addrSongList = file->GetShort(ofsInitSectionPtr + 8);
if (konamiBaseAddress == 0xffff) {
// Parodius Da! does not have base address
konamiBaseAddress = 0;
}
}
else if (file->SearchBytePattern(ptnInitSectionPtrYSFR, ofsInitSectionPtr)) {
uint8_t addrSongListPtr = file->GetByte(ofsInitSectionPtr + 2);
//; Yoshi's Safari SPC
//0886: 8f 00 48 mov $48,#$00
//0889: 8f 1e 49 mov $49,#$1e
char ptnInitSongListPtrBytesYSFR[] =
"\x8f\x00\x48\x8f\x1e\x49";
ptnInitSongListPtrBytesYSFR[2] = addrSongListPtr;
ptnInitSongListPtrBytesYSFR[5] = addrSongListPtr + 1;
BytePattern ptnInitSongListPtrYSFR(
ptnInitSongListPtrBytesYSFR
,
"x?xx?x"
,
6);
uint32_t ofsInitSongListPtr;
if (file->SearchBytePattern(ptnInitSongListPtrYSFR, ofsInitSongListPtr)) {
addrSongList = file->GetByte(ofsInitSongListPtr + 1) | (file->GetByte(ofsInitSongListPtr + 4) << 8);
}
}
else {
return;
}
// ACQUIRE VOICE COMMAND LIST & DETECT ENGINE VERSION
// (Minor classification for derived versions should come later as far as possible)
// find a branch for voice command,
// and acquire the following info for standard engines.
//
// - First voice command (usually $e0)
// - Voice command address table
// - Voice command length table
uint32_t ofsBranchForVcmd;
uint8_t firstVoiceCmd = 0;
uint16_t addrVoiceCmdAddressTable;
uint16_t addrVoiceCmdLengthTable;
// DERIVED VERSIONS
if (file->SearchBytePattern(ptnJumpToVcmdYSFR, ofsBranchForVcmd)) {
addrVoiceCmdAddressTable = file->GetShort(ofsBranchForVcmd + 9);
uint32_t ofsReadVcmdLength;
if (file->SearchBytePattern(ptnReadVcmdLengthYSFR, ofsReadVcmdLength)) {
firstVoiceCmd = file->GetByte(ofsReadVcmdLength + 2);
addrVoiceCmdLengthTable = file->GetShort(ofsReadVcmdLength + 7);
if (firstVoiceCmd == 0xe0) {
version = NINSNES_TOSE;
}
}
else {
return;
}
}
else {
// STANDARD VERSION
if (file->SearchBytePattern(ptnBranchForVcmdReadahead, ofsBranchForVcmd)) {
firstVoiceCmd = file->GetByte(ofsBranchForVcmd + 5);
}
else if (file->SearchBytePattern(ptnBranchForVcmd, ofsBranchForVcmd)) {
// this search often finds a wrong code, but some games still need it (for example, Human games)
firstVoiceCmd = file->GetByte(ofsBranchForVcmd + 1);
}
else {
return;
}
uint32_t ofsJumpToVcmd;
// find a jump to address_table[cmd * 2]
if (file->SearchBytePattern(ptnJumpToVcmd, ofsJumpToVcmd)) {
addrVoiceCmdAddressTable = file->GetShort(ofsJumpToVcmd + 7) + ((firstVoiceCmd * 2) & 0xff);
addrVoiceCmdLengthTable = file->GetShort(ofsJumpToVcmd + 14) + (firstVoiceCmd & 0x7f);
// false-positive needs to be fixed in later classification
version = NINSNES_STANDARD;
}
else if (file->SearchBytePattern(ptnJumpToVcmdSMW, ofsJumpToVcmd)) {
// search vcmd length table as well
uint32_t ofsReadVcmdLength;
if (file->SearchBytePattern(ptnReadVcmdLengthSMW, ofsReadVcmdLength)) {
addrVoiceCmdAddressTable = file->GetShort(ofsJumpToVcmd + 5) + ((firstVoiceCmd * 2) & 0xff);
addrVoiceCmdLengthTable = file->GetShort(ofsReadVcmdLength + 9) + firstVoiceCmd;
version = NINSNES_EARLIER;
}
else {
return;
}
}
// DERIVED VERSIONS
else if (file->SearchBytePattern(ptnJumpToVcmdCTOW, ofsJumpToVcmd)) {
// Human Games: Clock Tower, Firemen, S.O.S. (Septentrion)
addrVoiceCmdAddressTable = file->GetShort(ofsJumpToVcmd + 10);
addrVoiceCmdLengthTable = file->GetShort(ofsJumpToVcmd + 17);
version = NINSNES_HUMAN;
}
else {
return;
}
}
// TRY TO GRAB NOTE VOLUME/DURATION TABLE
uint32_t ofsDispatchNote = 0;
uint16_t addrDurRateTable = 0;
uint16_t addrVolumeTable = 0;
std::vector<uint8_t> durRateTable;
std::vector<uint8_t> volumeTable;
if (file->SearchBytePattern(ptnDispatchNoteYI, ofsDispatchNote)) {
addrDurRateTable = file->GetShort(ofsDispatchNote + 6);
for (uint8_t offset = 0; offset < 8; offset++) {
durRateTable.push_back(file->GetByte(addrDurRateTable + offset));
}
addrVolumeTable = file->GetShort(ofsDispatchNote + 16);
for (uint8_t offset = 0; offset < 16; offset++) {
volumeTable.push_back(file->GetByte(addrVolumeTable + offset));
}
}
else if (file->SearchBytePattern(ptnDispatchNoteGD3, ofsDispatchNote)) {
addrDurRateTable = file->GetShort(ofsDispatchNote + 6);
for (uint8_t offset = 0; offset < 8; offset++) {
durRateTable.push_back(file->GetByte(addrDurRateTable + offset));
}
addrVolumeTable = file->GetShort(ofsDispatchNote + 16);
for (uint8_t offset = 0; offset < 16; offset++) {
volumeTable.push_back(file->GetByte(addrVolumeTable + offset));
}
}
else if (file->SearchBytePattern(ptnDispatchNoteYSFR, ofsDispatchNote)) {
addrDurRateTable = file->GetShort(ofsDispatchNote + 16);
for (uint8_t offset = 0; offset < 8; offset++) {
durRateTable.push_back(file->GetByte(addrDurRateTable + offset));
}
addrVolumeTable = file->GetShort(ofsDispatchNote + 4);
for (uint8_t offset = 0; offset < 16; offset++) {
volumeTable.push_back(file->GetByte(addrVolumeTable + offset));
}
}
// CLASSIFY DERIVED VERSIONS (fix false-positive)
if (version == NINSNES_STANDARD)
{
if (konamiBaseAddress != 0xffff) {
version = NINSNES_KONAMI;
}
else if (file->SearchBytePattern(ptnDispatchNoteLEM, ofsDispatchNote)) {
if (firstVoiceCmd == 0xe0) {
version = NINSNES_LEMMINGS;
}
else {
version = NINSNES_UNKNOWN;
}
}
else {
const uint8_t STD_VCMD_LEN_TABLE[27] = { 0x01, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x01, 0x03, 0x00, 0x01, 0x02, 0x03, 0x01, 0x03, 0x03, 0x00, 0x01, 0x03, 0x00, 0x03, 0x03, 0x03, 0x01 };
if (firstVoiceCmd == 0xe0 && file->MatchBytes(STD_VCMD_LEN_TABLE, addrVoiceCmdLengthTable, sizeof(STD_VCMD_LEN_TABLE))) {
if (addrVoiceCmdAddressTable + sizeof(STD_VCMD_LEN_TABLE) * 2 == addrVoiceCmdLengthTable) {
uint32_t ofsWriteVolume;
if (file->SearchBytePattern(ptnWriteVolumeKSS, ofsWriteVolume)) {
version = NINSNES_HAL;
}
else {
version = NINSNES_STANDARD;
}
}
else {
// compatible design, but customized anyway
version = NINSNES_STANDARD;
uint32_t ofsRD1VCmd_FA_FE;
uint32_t ofsRD2VCmdInstrADSR;
if (file->SearchBytePattern(ptnRD1VCmd_FA_FE, ofsRD1VCmd_FA_FE)) {
version = NINSNES_RD1;
}
else if (file->SearchBytePattern(ptnRD2VCmdInstrADSR, ofsRD2VCmdInstrADSR)) {
// Marvelous
version = NINSNES_RD2;
}
}
}
else {
version = NINSNES_UNKNOWN;
uint32_t ofsIntelliVCmdFA;
if (file->SearchBytePattern(ptnIntelliVCmdFA, ofsIntelliVCmdFA)) {
// Intelligent Systems
if (file->SearchBytePattern(ptnDispatchNoteFE3, ofsDispatchNote)) {
const uint8_t INTELLI_FE3_VCMD_LEN_TABLE[40] = { 0x01, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x01, 0x03, 0x00, 0x01, 0x02, 0x03, 0x01, 0x03, 0x03, 0x00, 0x01, 0x03, 0x00, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x01, 0x01, 0x02, 0x02 };
if (firstVoiceCmd == 0xd6 && file->MatchBytes(INTELLI_FE3_VCMD_LEN_TABLE, addrVoiceCmdLengthTable, sizeof(INTELLI_FE3_VCMD_LEN_TABLE))) {
version = NINSNES_INTELLI_FE3;
}
}
else if (file->SearchBytePattern(ptnDispatchNoteFE4, ofsDispatchNote)) {
const uint8_t INTELLI_FE4_VCMD_LEN_TABLE[36] = { 0x01, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x01, 0x03, 0x00, 0x01, 0x02, 0x03, 0x01, 0x03, 0x03, 0x00, 0x01, 0x03, 0x00, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x02, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01 };
if (firstVoiceCmd == 0xda && file->MatchBytes(INTELLI_FE4_VCMD_LEN_TABLE, addrVoiceCmdLengthTable, sizeof(INTELLI_FE4_VCMD_LEN_TABLE))) {
version = NINSNES_INTELLI_FE4;
}
}
else {
const uint8_t INTELLI_TA_VCMD_LEN_TABLE[36] = { 0x01, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x01, 0x03, 0x00, 0x01, 0x02, 0x03, 0x01, 0x03, 0x03, 0x00, 0x01, 0x03, 0x00, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x02, 0x02, 0x00, 0x01, 0x01, 0x01, 0x01 };
if (firstVoiceCmd == 0xda && file->MatchBytes(INTELLI_TA_VCMD_LEN_TABLE, addrVoiceCmdLengthTable, sizeof(INTELLI_TA_VCMD_LEN_TABLE))) {
version = NINSNES_INTELLI_TA;
}
}
}
}
}
}
// GUESS SONG COUNT
// Test Case: Star Fox, Kirby Super Star, Earthbound
// Note that the result sometimes exceeds the real length
uint8_t songListLength = 1;
uint16_t addrSectionListCutoff = 0xffff;
// skip index 0, it's not a part of table in most games
for (uint8_t songIndex = 1; songIndex <= 0x7f; songIndex++) {
uint32_t addrSectionListPtr = addrSongList + songIndex * 2;
if (addrSectionListPtr >= addrSectionListCutoff) {
break;
}
uint16_t firstSectionPtr = file->GetShort(addrSectionListPtr);
if (version == NINSNES_KONAMI) {
firstSectionPtr += konamiBaseAddress;
}
if (firstSectionPtr == 0) {
continue;
}
if ((firstSectionPtr & 0xff00) == 0 || firstSectionPtr == 0xffff) {
break;
}
if (firstSectionPtr >= addrSectionListPtr) {
addrSectionListCutoff = min(addrSectionListCutoff, firstSectionPtr);
}
uint16_t addrFirstSection = file->GetShort(firstSectionPtr);
if (addrFirstSection < 0x0100) {
// usually it does not appear
// probably it's broken
continue;
}
if (version == NINSNES_KONAMI) {
addrFirstSection += konamiBaseAddress;
}
if (addrFirstSection + 16 > 0x10000) {
break;
}
bool hasIllegalTrack = false;
for (uint8_t trackIndex = 0; trackIndex < 8; trackIndex++) {
uint16_t addrTrackStart = file->GetShort(addrFirstSection + trackIndex * 2);
if (addrTrackStart != 0) {
if (addrTrackStart == 0xffff) {
hasIllegalTrack = true;
break;
}
if (version == NINSNES_KONAMI) {
addrTrackStart += konamiBaseAddress;
}
if ((addrTrackStart & 0xff00) == 0 || addrTrackStart == 0xffff) {
hasIllegalTrack = true;
break;
}
}
}
if (hasIllegalTrack) {
break;
}
songListLength = songIndex + 1;
}
// GUESS CURRENT SONG NUMBER
uint8_t guessedSongIndex = 0xff;
// scan for a song that contains the current section
// (note that the section pointer points to the "next" section actually, in most cases)
uint16_t addrCurrentSection = file->GetShort(addrSectionPtr);
if (addrCurrentSection >= 0x0100 && addrCurrentSection < 0xfff0) {
uint8_t songIndexCandidate = 0xff;
for (uint8_t songIndex = 0; songIndex <= songListLength; songIndex++) {
uint32_t addrSectionListPtr = addrSongList + songIndex * 2;
if (addrSectionListPtr == 0 || addrSectionListPtr == 0xffff) {
continue;
}
uint16_t firstSectionPtr = file->GetShort(addrSectionListPtr);
if (version == NINSNES_KONAMI) {
firstSectionPtr += konamiBaseAddress;
}
if (firstSectionPtr > addrCurrentSection) {
continue;
}
uint16_t curAddress = firstSectionPtr;
if ((addrCurrentSection % 2) == (curAddress % 2)) {
uint8_t sectionCount = 0; // prevent overrun of illegal data
while (curAddress >= 0x0100 && curAddress < 0xfff0 && sectionCount < 32) {
uint16_t addrSection = file->GetShort(curAddress);
if (version == NINSNES_KONAMI) {
addrSection += konamiBaseAddress;
}
if (curAddress == addrCurrentSection) {
songIndexCandidate = songIndex;
break;
}
if ((addrSection & 0xff00) == 0) {
// section list end / jump
break;
}
curAddress += 2;
sectionCount++;
}
if (songIndexCandidate != 0xff) {
break;
}
}
}
if (songIndexCandidate != 0xff) {
guessedSongIndex = songIndexCandidate;
}
}
if (guessedSongIndex == 0xff) {
return;
}
// load the song
uint16_t addrSongStart = file->GetShort(addrSongList + guessedSongIndex * 2);
if (version == NINSNES_KONAMI) {
addrSongStart += konamiBaseAddress;
}
NinSnesSeq* newSeq = new NinSnesSeq(file, version, addrSongStart, 0, volumeTable, durRateTable, name);
newSeq->konamiBaseAddress = konamiBaseAddress;
if (!newSeq->LoadVGMFile()) {
delete newSeq;
return;
}
// skip unknown instruments
if (version == NINSNES_UNKNOWN) {
return;
}
// scan for instrument table
uint32_t ofsLoadInstrTableAddressASM;
uint32_t addrInstrTable;
uint16_t spcDirAddr = 0;
if (file->SearchBytePattern(ptnLoadInstrTableAddress, ofsLoadInstrTableAddressASM)) {
addrInstrTable = file->GetByte(ofsLoadInstrTableAddressASM + 7) | (file->GetByte(ofsLoadInstrTableAddressASM + 10) << 8);
}
else if (file->SearchBytePattern(ptnLoadInstrTableAddressSMW, ofsLoadInstrTableAddressASM)) {
addrInstrTable = file->GetByte(ofsLoadInstrTableAddressASM + 3) | (file->GetByte(ofsLoadInstrTableAddressASM + 6) << 8);
}
// DERIVED VERSIONS
else if (version == NINSNES_HUMAN) {
if (file->SearchBytePattern(ptnLoadInstrTableAddressCTOW, ofsLoadInstrTableAddressASM)) {
addrInstrTable = file->GetByte(ofsLoadInstrTableAddressASM + 7) | (file->GetByte(ofsLoadInstrTableAddressASM + 10) << 8);
}
else if (file->SearchBytePattern(ptnLoadInstrTableAddressSOS, ofsLoadInstrTableAddressASM)) {
addrInstrTable = file->GetByte(ofsLoadInstrTableAddressASM + 1) | (file->GetByte(ofsLoadInstrTableAddressASM + 4) << 8);
}
else {
return;
}
}
else if (version == NINSNES_TOSE) {
if (file->SearchBytePattern(ptnLoadInstrTableAddressYSFR, ofsLoadInstrTableAddressASM)) {
spcDirAddr = file->GetByte(ofsLoadInstrTableAddressASM + 3) << 8;
addrInstrTable = file->GetByte(ofsLoadInstrTableAddressASM + 10) | (file->GetByte(ofsLoadInstrTableAddressASM + 13) << 8);
}
else {
return;
}
}
else {
return;
}
// scan for DIR address
if (spcDirAddr == 0) {
uint32_t ofsSetDIR;
if (file->SearchBytePattern(ptnSetDIR, ofsSetDIR)) {
spcDirAddr = file->GetByte(ofsSetDIR + 4) << 8;
}
else if (file->SearchBytePattern(ptnSetDIRYI, ofsSetDIR)) {
spcDirAddr = file->GetByte(ofsSetDIR + 1) << 8;
}
else if (file->SearchBytePattern(ptnSetDIRSMW, ofsSetDIR)) {
spcDirAddr = file->GetByte(ofsSetDIR + 9) << 8;
}
// DERIVED VERSIONS
else if (file->SearchBytePattern(ptnSetDIRCTOW, ofsSetDIR)) {
spcDirAddr = file->GetByte(ofsSetDIR + 3) << 8;
}
else {
return;
}
}
uint16_t konamiTuningTableAddress = 0;
uint8_t konamiTuningTableSize = 0;
if (version == NINSNES_KONAMI) {
uint32_t ofsInstrVCmd;
if (file->SearchBytePattern(ptnInstrVCmdGD3, ofsInstrVCmd)) {
uint16_t konamiAddrTuningTableLow = file->GetShort(ofsInstrVCmd + 10);
uint16_t konamiAddrTuningTableHigh = file->GetShort(ofsInstrVCmd + 14);
if (konamiAddrTuningTableHigh > konamiAddrTuningTableLow &&
konamiAddrTuningTableHigh - konamiAddrTuningTableLow <= 0x7f)
{
konamiTuningTableAddress = konamiAddrTuningTableLow;
konamiTuningTableSize = konamiAddrTuningTableHigh - konamiAddrTuningTableLow;
}
}
}
NinSnesInstrSet * newInstrSet = new NinSnesInstrSet(file, version, addrInstrTable, spcDirAddr);
newInstrSet->konamiTuningTableAddress = konamiTuningTableAddress;
newInstrSet->konamiTuningTableSize = konamiTuningTableSize;
if (!newInstrSet->LoadVGMFile()) {
delete newInstrSet;
return;
}
}
void NinSnesScanner::SearchForNinSnesFromARAM (RawFile* file)
{
NinSnesVersion version = NINSNES_NONE;
UINT ofsLoadInstrTableAddressASM;
UINT ofsSetDIRASM;
UINT addrInstrTable;
std::wstring basefilename = RawFile::removeExtFromPath(file->GetFileName());
std::wstring name = file->tag.HasTitle() ? file->tag.title : basefilename;
// get section pointer address
uint32_t ofsIncSectionPtr = 0;
uint8_t addrSectionPtr;
if (file->SearchBytePattern(ptnIncSectionPtr, ofsIncSectionPtr))
{
addrSectionPtr = file->GetByte(ofsIncSectionPtr + 3);
}
else
{
return;
}
// BEGIN DYNAMIC PATTERN DEFINITIONS
//; Kirby Super Star SPC
//; set initial value to section pointer
//08e4: f5 ff 38 mov a,$38ff+x
//08e7: fd mov y,a
//08e8: f5 fe 38 mov a,$38fe+x
//08eb: da 30 movw $30,ya
char ptnInitSectionPtrBytes[] =
"\xf5\xff\x38\xfd\xf5\xfe\x38\xda"
"\x30";
ptnInitSectionPtrBytes[8] = addrSectionPtr;
BytePattern ptnInitSectionPtr(
ptnInitSectionPtrBytes
,
"x??xx??x"
"?"
,
9);
//; Yoshi's Island SPC
//; set initial value to section pointer
//06f0: 1c asl a
//06f1: 5d mov x,a
//06f2: f5 8f ff mov a,$ff8f+x
//06f5: fd mov y,a
//06f6: d0 03 bne $06fb
//06f8: c4 04 mov $04,a
//06fa: 6f ret
//06fb: f5 8e ff mov a,$ff8e+x
//06fe: da 40 movw $40,ya
char ptnInitSectionPtrBytesYI[] =
"\x1c\x5d\xf5\x8f\xff\xfd\xd0\x03"
"\xc4\x04\x6f\xf5\x8e\xff\xda\x40";
ptnInitSectionPtrBytesYI[15] = addrSectionPtr;
BytePattern ptnInitSectionPtrYI(
ptnInitSectionPtrBytesYI
,
"xxx??xxx"
"x?xx??x?"
,
16);
// END DYNAMIC PATTERN DEFINITIONS
// find the initialization code of the section pointer,
// and acquire the sequence list address
uint32_t ofsInitSectionPtr = 0;
uint32_t addrSongList = 0;
if (file->SearchBytePattern(ptnInitSectionPtr, ofsInitSectionPtr))
{
addrSongList = file->GetShort(ofsInitSectionPtr + 5);
}
else if (file->SearchBytePattern(ptnInitSectionPtrYI, ofsInitSectionPtr))
{
addrSongList = file->GetShort(ofsInitSectionPtr + 12);
}
else
{
return;
}
// TODO: version detection
version = NINSNES_STANDARD;
// guess current song number
// TODO: add heuristic search
int8_t guessedSongIndex = -1;
switch (version)
{
case NINSNES_STANDARD:
guessedSongIndex = file->GetByte(0xf4);
break;
default:
guessedSongIndex = 1;
break;
}
// load the song
uint16_t addrSongStart = file->GetShort(addrSongList + guessedSongIndex * 2);
NinSnesSeq* newSeq = new NinSnesSeq(file, version, addrSongStart);
if (!newSeq->LoadVGMFile())
{
delete newSeq;
return;
}
// scan for instrument table
if (file->SearchBytePattern(ptnLoadInstrTableAddress, ofsLoadInstrTableAddressASM))
{
addrInstrTable = file->GetByte(ofsLoadInstrTableAddressASM + 7) | (file->GetByte(ofsLoadInstrTableAddressASM + 10) << 8);
}
else
{
return;
}
// scan for DIR address
uint8_t spcDIR;
if (file->SearchBytePattern(ptnSetDIR, ofsSetDIRASM))
{
spcDIR = file->GetByte(ofsSetDIRASM + 4);
}
else if (file->SearchBytePattern(ptnSetDIRYI, ofsSetDIRASM))
{
spcDIR = file->GetByte(ofsSetDIRASM + 1);
}
else
{
return;
}
NinSnesInstrSet * newInstrSet = new NinSnesInstrSet(file, addrInstrTable, spcDIR << 8);
if (!newInstrSet->LoadVGMFile())
{
delete newInstrSet;
return;
}
#if 0
// BEGIN STANDARD VERSION DETECTION
uint8_t firstVoiceCmd = 0;
uint16_t addrVoiceCmdAddressTable = 0;
uint16_t addrVoiceCmdLengthTable = 0;
// find a branch for voice command,
// and acquire the following info for standard engines.
//
// - First voice command (usually $e0)
// - Voice command address table
// - Voice command length table
uint32_t ofsBranchForVcmd = 0;
uint32_t ofsJumpToVcmd = 0;
if (file->SearchBytePattern(ptnBranchForVcmd, ofsBranchForVcmd))
{
firstVoiceCmd = file->GetByte(ofsBranchForVcmd + 1);
// find a jump to address_table[cmd * 2]
if (file->SearchBytePattern(ptnJumpToVcmd, ofsJumpToVcmd))
{
addrVoiceCmdAddressTable = file->GetShort(ofsJumpToVcmd + 7) + ((firstVoiceCmd * 2) & 0xff);
addrVoiceCmdLengthTable = file->GetShort(ofsJumpToVcmd + 14) + (firstVoiceCmd & 0x7f);
version = NINSNES_STANDARD;
}
}
// END STANDARD VERSION DETECTION
#endif
}
