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https://github.com/sanni/cartreader.git
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Remove auto selecting NES mapper config
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sanni
parent
38bc8a59e5
commit
49fdb0131e
@ -4,8 +4,8 @@
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This project represents a community-driven effort to provide
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an easy to build and easy to modify cartridge dumper.
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Date: 10.09.2022
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Version: 9.7
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Date: 18.09.2022
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Version: 9.8
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SD lib: https://github.com/greiman/SdFat
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OLED lib: https://github.com/adafruit/Adafruit_SSD1306
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@ -59,7 +59,7 @@
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**********************************************************************************/
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char ver[5] = "9.7";
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char ver[5] = "9.8";
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//******************************************
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// !!! CHOOSE HARDWARE VERSION !!!
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@ -862,14 +862,9 @@ void mainMenu() {
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#ifdef no-intro
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if (getMapping() == 0) {
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selectMapping();
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checkStatus_NES(0);
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}
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else {
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checkStatus_NES(1);
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}
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#else
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checkStatus_NES(0);
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#endif
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checkStatus_NES();
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nesMenu();
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break;
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#endif
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@ -230,7 +230,7 @@ void nesMenu() {
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setPRGSize();
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setCHRSize();
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setRAMSize();
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checkStatus_NES(0);
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checkStatus_NES();
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break;
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// Read Rom
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@ -493,8 +493,62 @@ boolean getMapping() {
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//if checksum search successful set mapper and end search
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if (strcmp(crc_search, crcStr) == 0) {
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// Close the file:
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myFile.close();
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// Rewind to start of entry
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for (byte count_newline = 0; count_newline < 4; count_newline++) {
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while (1) {
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if (myFile.curPosition() == 0) {
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break;
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}
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else if (myFile.peek() == '\n') {
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myFile.seekSet(myFile.curPosition() - 1);
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break;
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}
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else {
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myFile.seekSet(myFile.curPosition() - 1);
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}
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}
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}
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if (myFile.curPosition() != 0)
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myFile.seekSet(myFile.curPosition() + 2);
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// Display database
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while (myFile.available()) {
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display_Clear();
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// Read game name
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#if defined(enable_OLED)
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get_line(gamename, &myFile, 42);
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#else
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get_line(gamename, &myFile, 96);
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#endif
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// Read CRC32 checksum
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sprintf(checksumStr, "%c", myFile.read());
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for (byte i = 0; i < 7; i++) {
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sprintf(tempStr2, "%c", myFile.read());
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strcat(checksumStr, tempStr2);
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}
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// Skip over semicolon
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myFile.seekSet(myFile.curPosition() + 1);
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// Read CRC32 of first 512 bytes
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sprintf(crc_search, "%c", myFile.read());
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for (byte i = 0; i < 7; i++) {
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sprintf(tempStr2, "%c", myFile.read());
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strcat(crc_search, tempStr2);
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}
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// Skip over semicolon
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myFile.seekSet(myFile.curPosition() + 1);
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// Read iNES header
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get_line(iNES_STR, &myFile, 33);
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// Skip every 3rd line
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skip_line(&myFile);
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// Convert "4E4553" to (0x4E, 0x45, 0x53)
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byte iNES_BUF[2];
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@ -508,23 +562,6 @@ boolean getMapping() {
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mapper |= (iNES_HEADER[7] & 0xF0);
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mapper |= ((iNES_HEADER[8] & 0x0F) << 8);
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// Check if it's a supported mapper
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boolean validMapper = 0;
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byte mapcount = (sizeof(mapsize) / sizeof(mapsize[0])) / 7;
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for (byte currMaplist = 0; currMaplist < mapcount; currMaplist++) {
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if (pgm_read_byte(mapsize + currMaplist * 7) == mapper)
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validMapper = 1;
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}
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if (!validMapper) {
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println_Msg(F("Mapper not supported"));
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return 0;
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break;
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}
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// Save Mapper
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EEPROM_writeAnything(7, mapper);
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// PRG size
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if ((iNES_HEADER[9] & 0x0F) != 0x0F) {
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// simple notation
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@ -536,7 +573,6 @@ boolean getMapping() {
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}
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if (prgsize != 0)
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prgsize = (int(log(prgsize) / log(2)));
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EEPROM_writeAnything(8, prgsize);
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// CHR size
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if ((iNES_HEADER[9] & 0xF0) != 0xF0) {
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@ -548,15 +584,110 @@ boolean getMapping() {
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}
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if (chrsize != 0)
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chrsize = (int(log(chrsize) / log(2)));
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EEPROM_writeAnything(9, chrsize);
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// RAM size
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ramsize = ((iNES_HEADER[10] & 0xF0) ? (64 << ((iNES_HEADER[10] & 0xF0) >> 4)) : 0) / 4096; //*4
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if (ramsize != 0)
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ramsize = (int(log(ramsize) / log(2)));
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EEPROM_writeAnything(10, ramsize);
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prg = (int_pow(2, prgsize)) * 16;
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if (chrsize == 0)
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chr = 0; // 0K
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else
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chr = (int_pow(2, chrsize)) * 4;
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if (ramsize == 0)
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ram = 0; // 0K
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else if (mapper == 82)
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ram = 5; // 5K
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else
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ram = (int_pow(2, ramsize)) * 4;
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// Mapper Variants
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// Identify variant for use across multiple functions
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if (mapper == 4) { // Check for MMC6/MMC3
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checkMMC6();
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if (mmc6)
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ram = 1; // 1K
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}
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println_Msg(gamename);
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print_Msg(F("MAPPER: "));
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println_Msg(mapper);
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print_Msg(F("PRG SIZE: "));
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print_Msg(prg);
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println_Msg(F("K"));
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print_Msg(F("CHR SIZE: "));
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print_Msg(chr);
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println_Msg(F("K"));
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print_Msg(F("RAM SIZE: "));
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if (mapper == 0) {
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print_Msg(ram / 4);
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println_Msg(F("K"));
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}
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else if ((mapper == 16) || (mapper == 80) || (mapper == 159)) {
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if (mapper == 16)
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print_Msg(ram * 32);
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else
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print_Msg(ram * 16);
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println_Msg(F("B"));
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}
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else if (mapper == 19) {
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if (ramsize == 2)
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println_Msg(F("128B"));
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else {
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print_Msg(ram);
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println_Msg(F("K"));
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}
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}
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else {
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print_Msg(ram);
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println_Msg(F("K"));
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}
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#if defined(enable_OLED)
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println_Msg(F("Press left to Change"));
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println_Msg(F("and right to Select"));
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#elif defined(enable_LCD)
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println_Msg(F("Rotate to Change"));
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println_Msg(F("Press to Select"));
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#elif defined(SERIAL_MONITOR)
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println_Msg(F("U/D to Change"));
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println_Msg(F("Space to Select"));
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#endif
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display_Update();
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int b = 0;
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while (1) {
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// Check button input
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b = checkButton();
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// Next
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if (b == 1) {
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break;
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}
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// Previous
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else if (b == 2) {
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for (byte count_newline = 0; count_newline < 7; count_newline++) {
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while (1) {
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if (myFile.curPosition() == 0) {
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break;
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}
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else if (myFile.peek() == '\n') {
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myFile.seekSet(myFile.curPosition() - 1);
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break;
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}
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else {
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myFile.seekSet(myFile.curPosition() - 1);
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}
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}
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}
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if (myFile.curPosition() != 0)
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myFile.seekSet(myFile.curPosition() + 2);
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break;
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}
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// Selection
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else if (b == 3) {
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// Get name
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byte myLength = 0;
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for (unsigned int i = 0; i < 20; i++) {
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@ -578,14 +709,19 @@ boolean getMapping() {
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romName[3] = 'T';
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}
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// Print name
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display_Clear();
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println_Msg(romName);
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display_Update();
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// Save Mapper
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EEPROM_writeAnything(7, mapper);
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EEPROM_writeAnything(8, prgsize);
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EEPROM_writeAnything(9, chrsize);
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EEPROM_writeAnything(10, ramsize);
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myFile.close();
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return 1;
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break;
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}
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}
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}
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}
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}
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// File searched until end but nothing found
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if (strcmp(crc_search, crcStr) != 0) {
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println_Msg(F("Not found"));
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@ -2548,7 +2684,7 @@ void checkMMC6() { // Detect MMC6 Carts - read PRG 0x3E00A ("STARTROPICS")
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mmc6 = true; // MMC6 Cart
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}
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void checkStatus_NES(boolean clrscn) {
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void checkStatus_NES() {
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EEPROM_readAnything(7, mapper);
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EEPROM_readAnything(8, prgsize);
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EEPROM_readAnything(9, chrsize);
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@ -2575,12 +2711,10 @@ void checkStatus_NES(boolean clrscn) {
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else if (mapper == 30) // Check for Flashable/Non-Flashable
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NESmaker_ID(); // Flash ID
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if (!clrscn) {
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display_Clear();
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println_Msg(F("NES CART READER"));
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println_Msg(F(""));
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println_Msg(F("CURRENT SETTINGS"));
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}
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println_Msg(F(""));
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print_Msg(F("MAPPER: "));
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println_Msg(mapper);
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