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https://github.com/sanni/cartreader.git
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Merge pull request #256 from scrap-a/lock-on
Add support for Sonic & Knuckles Lock-on games
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sanni
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dce2ffe691
@ -89,6 +89,26 @@ boolean realtec = 0;
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#define DEFAULT_VALUE_segaSram16bit 0
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int segaSram16bit = DEFAULT_VALUE_segaSram16bit;
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/******************************************
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SONIC & KNUCKLES LOCK-ON MODE VARIABLES
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// SnKmode :
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// 0 = Not Sonic & Knuckles
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// 1 = Only Sonic & Knucles
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// 2 = Sonic & Knucles + Sonic1
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// 3 = Sonic & Knucles + Sonic2
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// 4 = Sonic & Knucles + Sonic3
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// 5 = Sonic & Knucles + Other game
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*****************************************/
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static byte SnKmode = 0;
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static unsigned long cartSizeLockon;
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static unsigned long cartSizeSonic2 = 262144;
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static word chksumLockon;
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static word chksumSonic2 = 0x0635;
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static char romNameLockon[12];
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static char id[15];
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static char idLockon[15];
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static char labelLockon[17];
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/******************************************
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Configuration
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*****************************************/
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@ -628,6 +648,90 @@ void getCartInfo_MD() {
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}
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}
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// Sonic & Knuckles Check
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SnKmode = 0;
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if (chksum == 0xDFB3) {
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// Get ID
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for (byte c = 0; c < 14; c += 2) {
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// split word
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word myWord = readWord_MD((0x180 + c) / 2);
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byte loByte = myWord & 0xFF;
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byte hiByte = myWord >> 8;
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// write to buffer
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sdBuffer[c] = hiByte;
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sdBuffer[c + 1] = loByte;
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}
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for(int i=0; i<14; i++){
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id[i] = char(sdBuffer[i]);
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}
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//Sonic & Knuckles ID:GM MK-1563 -00
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if (!strcmp("GM MK-1563 -00", id)) {
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// Get labelLockon
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for (byte c = 0; c < 16; c += 2) {
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// split word
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word myWord = readWord_MD((0x200100 + c) / 2);
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byte loByte = myWord & 0xFF;
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byte hiByte = myWord >> 8;
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// write to buffer
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sdBuffer[c] = hiByte;
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sdBuffer[c + 1] = loByte;
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}
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for(int i=0; i<16; i++){
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labelLockon[i] = char(sdBuffer[i]);
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}
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// check Lock-on game presence
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if (!(strcmp("SEGA MEGA DRIVE ", labelLockon) & strcmp("SEGA GENESIS ", labelLockon))) {
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// Lock-on cart checksum
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chksumLockon = readWord_MD(0x1000C7);
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// Lock-on cart size
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cartSizeLockon = ((long(readWord_MD(0x1000D2)) << 16) | readWord_MD(0x1000D3)) + 1;
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// Get IdLockon
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for (byte c = 0; c < 14; c += 2) {
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// split word
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word myWord = readWord_MD((0x200180 + c) / 2);
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byte loByte = myWord & 0xFF;
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byte hiByte = myWord >> 8;
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// write to buffer
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sdBuffer[c] = hiByte;
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sdBuffer[c + 1] = loByte;
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}
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for(int i=0; i<14; i++){
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idLockon[i] = char(sdBuffer[i]);
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}
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if (!(strncmp("GM 00001009-0", idLockon,13) & strncmp("GM 00004049-0", idLockon,13) )) {
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//Sonic1 ID:GM 00001009-0? or GM 00004049-0?
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SnKmode = 2;
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}else if (!(strcmp("GM 00001051-00", idLockon) & strcmp("GM 00001051-01", idLockon) & strcmp("GM 00001051-02", idLockon))) {
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//Sonic2 ID:GM 00001051-00 or GM 00001051-01 or GM 00001051-02
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SnKmode = 3;
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// Prepare Sonic2 Banks
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writeSSF2Map(0x509878, 1); // 0xA130F1
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}else if (!strcmp("GM MK-1079 -00", idLockon)) {
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//Sonic1 ID:GM MK-1079 -00
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SnKmode = 4;
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}else{
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//Other game
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SnKmode = 5;
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}
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}else{
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SnKmode = 1;
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}
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}
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}
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// Serial EEPROM Check
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for (int i = 0; i < eepcount; i++) {
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int index = i * 2;
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@ -821,6 +925,39 @@ void getCartInfo_MD() {
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}
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}
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//Get Lock-on cart name
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if(SnKmode>=2){
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//Change romName
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strcpy(romName,"SnK_");
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for (byte c = 0; c < 48; c += 2) {
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// split word
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word myWord = readWord_MD((0x200150 + c) / 2);
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byte loByte = myWord & 0xFF;
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byte hiByte = myWord >> 8;
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// write to buffer
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sdBuffer[c] = hiByte;
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sdBuffer[c + 1] = loByte;
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}
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byte myLength = 0;
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for (unsigned int i = 0; i < 48; i++) {
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if (((char(sdBuffer[i]) >= 48 && char(sdBuffer[i]) <= 57) || (char(sdBuffer[i]) >= 65 && char(sdBuffer[i]) <= 122)) && myLength < 11) {
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romNameLockon[myLength] = char(sdBuffer[i]);
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myLength++;
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}
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}
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switch(SnKmode){
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case 2: strcat(romName,"SONIC1"); break;
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case 3: strcat(romName,"SONIC2"); break;
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case 4: strcat(romName,"SONIC3"); break;
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case 5: strcat(romName,romNameLockon); break;
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}
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}
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// Realtec Mapper Check
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word realtecCheck1 = readWord_MD(0x3F080); // 0x7E100 "SEGA" (BootROM starts at 0x7E000)
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word realtecCheck2 = readWord_MD(0x3F081);
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@ -846,10 +983,41 @@ void getCartInfo_MD() {
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}
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print_Msg(F("Size: "));
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print_Msg(cartSize * 8 / 1024 / 1024 );
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switch(SnKmode){
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case 2:
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case 4:
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case 5:
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print_Msg(F("+"));
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print_Msg(cartSizeLockon * 8 / 1024 / 1024 );
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break;
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case 3:
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print_Msg(F("+"));
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print_Msg(cartSizeLockon * 8 / 1024 / 1024 );
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print_Msg(F("+"));
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print_Msg(cartSizeSonic2 * 8 / 1024 / 1024 );
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break;
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}
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println_Msg(F(" MBit"));
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print_Msg(F("ChkS: "));
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print_Msg_PaddedHexByte((chksum >> 8));
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print_Msg_PaddedHexByte((chksum & 0x00ff));
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switch(SnKmode){
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case 2:
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case 4:
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case 5:
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print_Msg(F("+"));
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print_Msg_PaddedHexByte((chksumLockon >> 8));
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print_Msg_PaddedHexByte((chksumLockon & 0x00ff));
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break;
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case 3:
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print_Msg(F("+"));
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print_Msg_PaddedHexByte((chksumLockon >> 8));
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print_Msg_PaddedHexByte((chksumLockon & 0x00ff));
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print_Msg(F("+"));
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print_Msg_PaddedHexByte((chksumSonic2 >> 8));
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print_Msg_PaddedHexByte((chksumSonic2 & 0x00ff));
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break;
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}
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println_Msg(F(""));
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if (saveType == 4) {
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print_Msg(F("Serial EEPROM: "));
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@ -913,6 +1081,8 @@ void writeSSF2Map(unsigned long myAddress, word myData) {
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void readROM_MD() {
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// Checksum
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uint16_t calcCKS = 0;
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uint16_t calcCKSLockon = 0;
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uint16_t calcCKSSonic2 = 0;
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// Set control
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dataIn_MD();
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@ -958,6 +1128,8 @@ void readROM_MD() {
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//Initialize progress bar
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uint32_t processedProgressBar = 0;
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uint32_t totalProgressBar = (uint32_t)(cartSize);
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if(SnKmode>=2) totalProgressBar += (uin32_t) cartSizeLockon;
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if(SnKmode==3) totalProgressBar += (uin32_t) cartSizeSonic2;
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draw_progressbar(0, totalProgressBar);
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for (unsigned long currBuffer = 0; currBuffer < cartSize / 2; currBuffer += 512) {
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@ -1012,6 +1184,93 @@ void readROM_MD() {
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processedProgressBar += 1024;
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draw_progressbar(processedProgressBar, totalProgressBar);
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}
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if(SnKmode >= 2){
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for (unsigned long currBuffer = 0; currBuffer < cartSizeLockon / 2; currBuffer += 512) {
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// Blink led
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if (currBuffer % 16384 == 0)
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PORTB ^= (1 << 4);
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d = 0;
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for (int currWord = 0; currWord < 512; currWord++) {
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unsigned long myAddress = currBuffer + currWord + cartSize / 2;
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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NOP;
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// Setting OE(PH6) LOW
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PORTH &= ~(1 << 6);
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// most MD ROMs are 200ns, comparable to SNES > use similar access delay of 6 x 62.5 = 375ns
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NOP; NOP; NOP; NOP; NOP; NOP;
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// Read
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buffer[d] = PINA;
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buffer[d + 1] = PINC;
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// Setting CS(PH3) HIGH
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PORTH |= (1 << 3);
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// Setting OE(PH6) HIGH
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PORTH |= (1 << 6);
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// Skip first 256 words
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if (((currBuffer == 0) && (currWord >= 256)) || (currBuffer > 0)) {
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calcCKSLockon += ((buffer[d] << 8) | buffer[d + 1]);
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}
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d += 2;
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}
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myFile.write(buffer, 1024);
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// update progress bar
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processedProgressBar += 1024;
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draw_progressbar(processedProgressBar, totalProgressBar);
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}
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}
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if(SnKmode == 3){
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for (unsigned long currBuffer = 0; currBuffer < cartSizeSonic2 / 2; currBuffer += 512) {
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// Blink led
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if (currBuffer % 16384 == 0)
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PORTB ^= (1 << 4);
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d = 0;
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for (int currWord = 0; currWord < 512; currWord++) {
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unsigned long myAddress = currBuffer + currWord + (cartSize+cartSizeLockon) / 2;
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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NOP;
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// Setting OE(PH6) LOW
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PORTH &= ~(1 << 6);
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// most MD ROMs are 200ns, comparable to SNES > use similar access delay of 6 x 62.5 = 375ns
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NOP; NOP; NOP; NOP; NOP; NOP;
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// Read
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buffer[d] = PINA;
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buffer[d + 1] = PINC;
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// Setting CS(PH3) HIGH
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PORTH |= (1 << 3);
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// Setting OE(PH6) HIGH
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PORTH |= (1 << 6);
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calcCKSSonic2 += ((buffer[d] << 8) | buffer[d + 1]);
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d += 2;
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}
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myFile.write(buffer, 1024);
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// update progress bar
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processedProgressBar += 1024;
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draw_progressbar(processedProgressBar, totalProgressBar);
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}
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}
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// Close the file:
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myFile.close();
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@ -1040,6 +1299,34 @@ void readROM_MD() {
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print_Error(F(""), false);
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display_Update();
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}
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if(SnKmode >= 2){
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if (chksumLockon == calcCKSLockon) {
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println_Msg(F("Checksum2 OK"));
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display_Update();
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}
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else {
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print_Msg(F("Checksum2 Error: "));
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char calcsumStr[5];
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sprintf(calcsumStr, "%04X", calcCKSLockon);
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println_Msg(calcsumStr);
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print_Error(F(""), false);
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display_Update();
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}
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}
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if(SnKmode == 3){
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if (chksumSonic2 == calcCKSSonic2) {
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println_Msg(F("Checksum3 OK"));
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display_Update();
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}
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else {
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print_Msg(F("Checksum3 Error: "));
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char calcsumStr[5];
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sprintf(calcsumStr, "%04X", calcCKSSonic2);
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println_Msg(calcsumStr);
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print_Error(F(""), false);
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display_Update();
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}
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}
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}
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/******************************************
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