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https://github.com/sanni/cartreader.git
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Add option to force ROM size for MD carts
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sanni
GitHub
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27a213a3c1
commit
0203e4bf93
@ -31,6 +31,8 @@ byte eepType;
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// chksum is located in ROM at 0x18E (0xC7)
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// eepType and eepSize are combined to conserve memory
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//*********************************************************
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const byte MDSize[] PROGMEM = { 1, 2, 4, 8, 12, 16, 20, 24, 32, 40 };
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static const word PROGMEM eepid[] = {
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// ACCLAIM TYPE 1
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0x5B9F, 0x101, // NBA Jam (J)
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@ -93,9 +95,9 @@ int segaSram16bit = 0;
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#else /* !ENABLED_CONFIG */
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# ifndef OPTION_MD_DEFAULT_SAVE_TYPE
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# define OPTION_MD_DEFAULT_SAVE_TYPE 0
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# endif /* !OPTION_MD_DEFAULT_SAVE_TYPE */
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#ifndef OPTION_MD_DEFAULT_SAVE_TYPE
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#define OPTION_MD_DEFAULT_SAVE_TYPE 0
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#endif /* !OPTION_MD_DEFAULT_SAVE_TYPE */
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int segaSram16bit = OPTION_MD_DEFAULT_SAVE_TYPE;
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@ -212,9 +214,8 @@ static const char MDMenuItem3[] PROGMEM = "Flash Repro";
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static const char* const menuOptionsMD[] PROGMEM = { MDMenuItem1, MDMenuItem2, MDMenuItem3, FSTRING_RESET };
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// Cart menu items
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static const char MDCartMenuItem4[] PROGMEM = "Read EEPROM";
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static const char MDCartMenuItem5[] PROGMEM = "Write EEPROM";
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static const char* const menuOptionsMDCart[] PROGMEM = { FSTRING_READ_ROM, FSTRING_READ_SAVE, FSTRING_WRITE_SAVE, MDCartMenuItem4, MDCartMenuItem5, FSTRING_REFRESH_CART, FSTRING_RESET };
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static const char MDCartMenuItem4[] PROGMEM = "Force ROM size";
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static const char* const menuOptionsMDCart[] PROGMEM = { FSTRING_READ_ROM, FSTRING_READ_SAVE, FSTRING_WRITE_SAVE, MDCartMenuItem4, FSTRING_REFRESH_CART, FSTRING_RESET };
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// Sega CD Ram Backup Cartridge menu items
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static const char SCDMenuItem1[] PROGMEM = "Read Backup RAM";
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@ -302,8 +303,8 @@ void mdCartMenu() {
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// create menu with title and 6 options to choose from
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unsigned char mainMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsMDCart, 7);
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mainMenu = question_box(F("MEGA DRIVE Reader"), menuOptions, 7, 0);
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convertPgm(menuOptionsMDCart, 6);
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mainMenu = question_box(F("MEGA DRIVE Reader"), menuOptions, 6, 0);
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// wait for user choice to come back from the question box menu
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switch (mainMenu) {
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@ -345,8 +346,10 @@ void mdCartMenu() {
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enableSram_MD(1);
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readSram_MD();
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enableSram_MD(0);
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} else if (saveType == 4) {
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readEEP_MD();
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} else {
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print_Error(F("Cart has no Sram"));
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print_Error(F("Cart has no Save"));
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}
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break;
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@ -372,33 +375,22 @@ void mdCartMenu() {
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print_STR(_bytes_STR, 1);
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print_Error(did_not_verify_STR);
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}
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} else {
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print_Error(F("Cart has no Sram"));
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}
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break;
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case 3:
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display_Clear();
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if (saveType == 4)
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readEEP_MD();
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else {
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print_Error(F("Cart has no EEPROM"));
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}
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break;
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case 4:
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display_Clear();
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if (saveType == 4) {
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} else if (saveType == 4) {
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// Launch file browser
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fileBrowser(F("Select eep file"));
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display_Clear();
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writeEEP_MD();
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} else {
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print_Error(F("Cart has no EEPROM"));
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print_Error(F("Cart has no Save"));
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}
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break;
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case 5:
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case 3:
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display_Clear();
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force_cartSize_MD();
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break;
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case 4:
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// For multi-game carts
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// Set reset pin to output (PH0)
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DDRH |= (1 << 0);
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@ -412,7 +404,7 @@ void mdCartMenu() {
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resetArduino();
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break;
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case 6:
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case 5:
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// Reset
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resetArduino();
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break;
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@ -966,15 +958,15 @@ void getCartInfo_MD() {
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}
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// Kromasphere (Aftermarket)
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if (!strncmp("GM MK-0000 -00", id, 14) && (chksum == 0xC536)) {
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if (!strncmp("GM MK-0000 -00", id, 14) && (chksum == 0xC536)) {
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chksum = 0xFAB1;
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cartSize = 0x200000;
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}
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}
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// YM2017 (Aftermarket)
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if (!strncmp("GM CSET0001-02", id, 14) && (chksum == 0x0000)) {
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if (!strncmp("GM CSET0001-02", id, 14) && (chksum == 0x0000)) {
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chksum = 0xE3A9;
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}
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}
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// The Curse of Illmore Bay (Aftermarket)
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if (!strncmp("1774 ", id, 14) && (chksum == 0x0000)) {
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@ -1161,7 +1153,7 @@ void getCartInfo_MD() {
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} else if (sramBase == 0x3FFC00) {
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// Used for some aftermarket carts without sram
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saveType = 0;
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}else {
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} else {
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print_Msg(("sramType: "));
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print_Msg_PaddedHex16(sramType);
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println_Msg(FS(FSTRING_EMPTY));
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@ -2894,6 +2886,24 @@ void readRealtec_MD() {
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myFile.close();
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}
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void printRomSize_MD(int index) {
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display_Clear();
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print_Msg(F("ROM Size: "));
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print_Msg(pgm_read_byte(&(MDSize[index])));
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println_Msg(F(" Mbit"));
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}
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void force_cartSize_MD() {
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cartSize = navigateMenu(0, 9, &printRomSize_MD);
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cartSize = pgm_read_byte(&(MDSize[cartSize])) * 131072;
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display.setCursor(0, 56); // Display selection at bottom
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print_Msg(FS(FSTRING_ROM_SIZE));
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print_Msg(cartSize / 131072);
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println_Msg(F(" Mbit"));
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display_Update();
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delay(1000);
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}
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#endif
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//******************************************
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