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synced 2024-11-27 15:04:15 +01:00
Add support for the Game Boy M161 mapper
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commit
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@ -426,6 +426,8 @@ void showCartInfo_GB() {
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print_Msg(F("HuC-3"));
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else if (romType == 255)
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print_Msg(F("HuC-1"));
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else if (romType == 0x104)
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print_Msg(F("M161"));
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println_Msg(F(" "));
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print_Msg(F("Rom Size: "));
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@ -815,6 +817,11 @@ void getCartInfo_GB() {
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romName[i] = 0x00;
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myLength--;
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}
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// Detect M161 game
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if ((strncmp(romName, "TETRIS SET", 9) == 0) && (sdBuffer[0x14D] == 0x3F)) {
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romType = 0x104;
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}
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}
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/******************************************
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@ -847,21 +854,39 @@ void readROM_GB() {
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print_Error(F("Can't create file on SD"), true);
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}
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int endAddress = 0x7FFF;
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word romAddress = 0;
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word startBank = 1;
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//Initialize progress bar
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uint32_t processedProgressBar = 0;
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uint32_t totalProgressBar = (uint32_t)(romBanks) * 16384;
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draw_progressbar(0, totalProgressBar);
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for (word currBank = 1; currBank < romBanks; currBank++) {
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// M161 banks are double size and start with 0
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if (romType == 0x104) {
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startBank = 0;
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romBanks >>= 1;
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}
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for (word currBank = startBank; currBank < romBanks; currBank++) {
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// Second bank starts at 0x4000
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if (currBank > 1) {
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romAddress = 0x4000;
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}
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// M161 banks are double size and need mapper reset
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if (romType == 0x104) {
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romAddress = 0;
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endAddress = 0x7FFF;
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PORTH &= ~(1 << 0);
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delay(50);
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PORTH |= (1 << 0);
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writeByte_GB(0x4000, currBank & 0x7);
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}
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// Set ROM bank for MBC2/3/4/5
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if (romType >= 5) {
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else if (romType >= 5) {
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if (romType >= 11 && romType <= 13) {
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if ((currBank & 0x1f) == 0) {
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// reset MMM01
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@ -896,7 +921,7 @@ void readROM_GB() {
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}
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// Read banks and save to SD
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while (romAddress <= 0x7FFF) {
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while (romAddress <= endAddress) {
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for (int i = 0; i < 512; i++) {
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sdBuffer[i] = readByte_GB(romAddress + i);
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}
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