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Improve NES cart detection
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@ -409,14 +409,14 @@ boolean getMapping() {
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println_Msg(F("Searching database..."));
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display_Update();
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// Read first 16 bytes of prg rom
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for (int x = 0; x < 16; x++) {
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// Read first 512 bytes of prg rom
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for (int x = 0; x < 512; x++) {
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sdBuffer[x] = read_prg_byte(0x8000 + x);
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}
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// Calculate CRC32
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uint32_t oldcrc32 = 0xFFFFFFFF;
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for (int c = 0; c < 16; c++) {
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for (int c = 0; c < 512; c++) {
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oldcrc32 = updateCRC(sdBuffer[c], oldcrc32);
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}
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char crcStr[9];
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@ -49,7 +49,7 @@ Savetypes:
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6 = 16K Eeprom
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## nes.txt
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This file stores the iNES Header, the CRC32 of the first 16 bytes after the iNES header and the CRC32 of the complete ROM minus the iNES header.
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This file stores the iNES Header, the CRC32 of the first 512 bytes after the iNES header and the CRC32 of the complete ROM minus the iNES header.
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Example:
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89 Dennou Kyuusei Uranai (Japan).nes
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