//****************************************** // INTELLIVISION MODULE //****************************************** #ifdef enable_INTV // Mattel Intellivision // Cartridge Pinout // 44P 2.54mm pitch connector // // TOP SIDE BOTTOM SIDE // (EVEN) (ODD) // +-------+ // GND -| 2 1 |- GND // CBLNK -| 4 3 |- /MSYNC // EXT AUD -| 6 5 |- DB7 // EXT VID -| 8 7 |- DB8 // MCLK -| 10 9 |- DB6 // RESET -| 12 11 |- DB9 // SR1 -| 14 13 |- DB5 // VOICE -| 16 15 |- DB10 // VOICE -| 18 17 |- DB4 // GND -| 20 19 |- DB11 // GND -| 22 21 |- DB3 // GND -| 24 23 |- DB12 // GND -| 26 25 |- DB13 // GND -| 28 27 |- DB2 // /BUSAK -| 30 29 |- DB14 // BC1 -| 32 31 |- DB1 // BC2 -| 34 33 |- DB0 // BDIR -| 36 35 |- DB15 // BDIR -| 38 37 |- BDIR // BC2 -| 40 39 |- BC2 // BC1 -| 42 41 |- BC1 // GND -| 44 43 |- VCC(+5V) // +-------+ // CONTROL PINS: // /MSYNC(PH3)- PIN 3 [ROM PIN 14] // BC1(PH4) - PIN 41 [ROM PIN 28] // BC2(PH5) - PIN 39 [ROM PIN 27] // BDIR(PH6) - PIN 37 [ROM PIN 26] // NOTE: BDIR/BC1/BC2 ONLY CONNECTED TO BOTTOM (ODD) PINS // NOT CONNECTED: // RESET(PH0) - N/C - GND IN CART // MCLK(PH1) - N/C - GND IN CART // BUS PROTOCOL COMMANDS - BDIR/BC1/BC2 // NO ACTION (NACT): 0/0/0 // ADDR TO REG (ADAR): 0/1/0 // INT ADDR TO BUS (IAB): 0/0/1 // DATA TO BUS (DTB): 0/1/1 // BUS TO ADDR (BAR): 1/0/0 // DATA WRITE (DW): 1/1/0 // DATA WRITE STROBE (DWS): 1/0/1 // INTERRUPT ACK (INTAK): 1/1/1 // Cart Configurations // Format = {mapper,romlo,romhi,ramsize} static const byte PROGMEM intvmapsize[] = { 0, 0, 2, 0, // default mattel up to 32K (8K/16K/24K/32K) 1, 1, 3, 0, // demo cart 16K, championship tennis 32K, wsml baseball 48K 2, 1, 3, 0, // up to 48K (16K/32K/48K) 3, 4, 4, 0, // tower of doom 48K 4, 0, 1, 1, // uscf chess 16K + RAM 1K 5, 2, 3, 0, // congo bongo/defender/pac-man 24K, dig dug 32K 6, 1, 1, 0, // centipede 16K 7, 1, 1, 0, // imagic carts 16K 8, 1, 1, 0, // mte-201 test cart 16K 9, 3, 3, 2, // triple challenge 32K + RAM 2K }; byte intvmapcount = 10; // (sizeof(mapsize)/sizeof(mapsize[0])) / 4; boolean intvmapfound = false; byte intvmapselect; int intvindex; byte INTV[] = { 8, 16, 24, 32, 48 }; byte intvlo = 0; // Lowest Entry byte intvhi = 4; // Highest Entry byte intvmapper; byte newintvmapper; byte intvsize; byte newintvsize; // EEPROM MAPPING // 07 MAPPER // 08 ROM SIZE //****************************************** // Menu //****************************************** // Base Menu static const char intvMenuItem1[] PROGMEM = "Select Cart"; static const char intvMenuItem2[] PROGMEM = "Read ROM"; static const char intvMenuItem3[] PROGMEM = "Set Mapper + Size"; //static const char intvMenuItem4[] PROGMEM = "Reset"; (stored in common strings array) static const char* const menuOptionsINTV[] PROGMEM = { intvMenuItem1, intvMenuItem2, intvMenuItem3, string_reset2 }; void setup_INTV() { // Set Address Pins to Output (UNUSED) //A0-A7 DDRF = 0xFF; //A8-A15 DDRK = 0xFF; //A16-A23 DDRL = 0xFF; // Set Control Pins to Output // ---(PH0) ---(PH1) /MSYNC(PH3) BC1(PH4) BC2(PH5) BDIR(PH6) DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6); // Set TIME(PJ0) to Output (UNUSED) DDRJ |= (1 << 0); // Set Pins (DB0-DB15) to Input DDRC = 0x00; DDRA = 0x00; // Setting Control Pins to HIGH // ---(PH0) ---(PH1) /MSYNC(PH3) BC1(PH4) BC2(PH5) BDIR(PH6) PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6); // Set Unused Pins HIGH PORTF = 0xFF; // A0-A7 PORTK = 0xFF; // A8-A15 PORTL = 0xFF; // A16-A23 PORTJ |= (1 << 0); // TIME(PJ0) checkStatus_INTV(); strcpy(romName, "INTV"); mode = mode_INTV; } void intvMenu() { convertPgm(menuOptionsINTV, 4); uint8_t mainMenu = question_box(F("INTELLIVISION MENU"), menuOptions, 4, 0); switch (mainMenu) { case 0: // Select Cart setCart_INTV(); setup_INTV(); break; case 1: // Read ROM sd.chdir("/"); readROM_INTV(); sd.chdir("/"); break; case 2: // Set Mapper setMapper_INTV(); checkMapperSize_INTV(); setROMSize_INTV(); break; case 3: // reset resetArduino(); break; } } //****************************************** // INTELLIVISION BUS PROTOCOL COMMANDS //****************************************** // CONTROL PINS - BDIR/BC1/BC2 // NO ACTION (NACT): 0/0/0 // ADDR TO REG (ADAR): 0/1/0 [NOTE: ORDER BDIR/BC1/BC2] // DATA TO BUS (DTB): 0/1/1 // BUS TO ADDR (BAR): 1/0/0 // DATA WRITE (DW): 1/1/0 [NOTE: ORDER BDIR/BC1/BC2] // DATA WRITE STROBE (DWS): 1/0/1 [NOTE: ORDER BDIR/BC1/BC2] // IMMEDIATE MODE DATA READ SEQUENCE: BAR-NACT-DTB-NACT // IMMEDIATE MODE DATA WRITE SEQUENCE: BAR-NACT-DW-DWS-NACT // DIRECT ADDRESSING MODE READ SEQUENCE: BAR-NACT-ADAR-NACT-DTB-NACT // NO ACTION (NACT) - 0/0/0 void NACT_INT() { // Switch BC1(PH4) + BC2(PH5) + BDIR(PH6) to LOW PORTH &= ~(1 << 4) & ~(1 << 5) & ~(1 << 6); // DB0..DB15 INPUT DDRC = 0x00; DDRA = 0x00; } // SET ADDRESS - BUS TO ADDR (BAR) - 1/0/0 void BAR_INT() { // Switch BDIR(PH6) to HIGH PORTH |= (1 << 6); // Switch BC1(PH4) + BC2(PH5) to LOW PORTH &= ~(1 << 4) & ~(1 << 5); // Address OUT DDRC = 0xFF; DDRA = 0xFF; } // READ DATA - DATA TO BUS (DTB) - 0/1/1 void DTB_INT() { // Switch BDIR(PH6) to LOW PORTH &= ~(1 << 6); // Switch BC1(PH4) + BC2(PH5) to HIGH PORTH |= (1 << 4) | (1 << 5); // Data IN DDRC = 0x00; DDRA = 0x00; } // ADDRESS DATA TO ADDRESS REGISTER (ADAR) - 0/1/0 void ADAR_INT() { // Switch BC2(PH5) + BDIR(PH6) to LOW PORTH &= ~(1 << 5) & ~(1 << 6); // Switch BC1(PH4) to HIGH PORTH |= (1 << 4); } // DATA WRITE PAIRED COMMAND - DW + DWS // DATA SHOULD BE STABLE ACROSS BOTH // DATA WRITE (DW) - 1/1/0 void DW_INT() { // Switch BC1(PH4) + BDIR(PH6) to HIGH PORTH |= (1 << 4) | (1 << 6); // Switch BC2(PH5) to LOW PORTH &= ~(1 << 5); } // DATA WRITE STROBE (DWS) - 1/0/1 void DWS_INT() { // Switch BC2(PH5) + BDIR(PH6) to HIGH PORTH |= (1 << 5) | (1 << 6); // Switch BC1(PH4) to LOW PORTH &= ~(1 << 4); } //****************************************** // READ CODE //****************************************** uint16_t readData_INTV(uint32_t addr) { PORTC = addr & 0xFF; PORTA = (addr >> 8) & 0xFF; BAR_INT(); // Wait for bus // 5 x 62.5ns = 312.5ns NOP; NOP; NOP; NOP; NOP; NACT_INT(); NOP; NOP; NOP; NOP; NOP; DTB_INT(); NOP; NOP; NOP; NOP; NOP; uint16_t ret = (((PINA & 0xFF) << 8) | (PINC & 0xFF)); NACT_INT(); NOP; NOP; NOP; NOP; NOP; return ret; } // MAPPER ROM ADDRESSES // 0: 0x50-0x70,0xD0-0xE0,0xF0-0x100, // default mattel up to 32K (8K/16K/24K/32K) // 1: 0x50-0x70,0xD0-0x100, // demo cart 16K, championship tennis 32K, wsml baseball 48K // 2: 0x50-0x70,0x90-0xC0,0xD0-0xE0, // up to 48K (16K/32K/48K) // 3: 0x50-0x70,0x90-0xB0,0xD0-0xE0,0xF0-0x100, // tower of doom 48K // 4: 0x50-0x70, // uscf chess 16K + RAM 1K // 5: 0x50-0x80,0x90-0xC0, // congo bongo/defender/pac-man 24K, dig dug 32K // 6: 0x60-0x80, // centipede 16K // 7: 0x48-0x68, // imagic carts 16K // 8: 0x50-0x60,0x70-0x80, // mte-201 test cart 16K // 9: 0x50-0x70,0x90-0xB0,[0xC0-0xC8,0xD0-0xD8] // triple challenge 32K + RAM 2K [0xC0 + 0xD0 segments are not needed] void readSegment_INTV(uint32_t startaddr, uint32_t endaddr) { for (uint32_t addr = startaddr; addr < endaddr; addr += 256) { for (uint16_t w = 0; w < 256; w++) { uint16_t temp = readData_INTV(addr + w); sdBuffer[w * 2] = (temp >> 8) & 0xFF; sdBuffer[(w * 2) + 1] = temp & 0xFF; } myFile.write(sdBuffer, 512); } } // MODIFIED READ ROUTINE FOR ALL 10 MAPPERS void readROM_INTV() { strcpy(fileName, romName); strcat(fileName, ".int"); // create a new folder for storing rom file EEPROM_readAnything(0, foldern); sprintf(folder, "INTV/ROM/%d", foldern); sd.mkdir(folder, true); sd.chdir(folder); display_Clear(); print_STR(saving_to_STR, 0); print_Msg(folder); println_Msg(F("/...")); display_Update(); // open file on sdcard if (!myFile.open(fileName, O_RDWR | O_CREAT)) print_Error(create_file_STR, true); // write new folder number back to EEPROM foldern++; EEPROM_writeAnything(0, foldern); switch (intvmapper) { case 0: //default mattel up to 32K (8K/16K/24K/32K) readSegment_INTV(0x5000, 0x6000); // 8K if (intvsize > 0) { readSegment_INTV(0x6000, 0x7000); // +8K = 16K if (intvsize > 1) { readSegment_INTV(0xD000, 0xE000); // +8K = 24K if (intvsize > 2) readSegment_INTV(0xF000, 0x10000); // +8K = 32K } } break; case 1: // demo cart/championship tennis/wsml baseball readSegment_INTV(0x5000, 0x7000); // 16K Demo Cart if (intvsize > 1) { readSegment_INTV(0xD000, 0xE000); // +8K = 24K [NONE] if (intvsize > 2) { readSegment_INTV(0xE000, 0xF000); // +8K = 32K Championship Tennis if (intvsize > 3) { readSegment_INTV(0xF000, 0x10000); // +8K = 40K WSML Baseball [MISSING 8K ECS BANK] // ecs bank switch ecsBank(0xFFFF, 0x1); // switch ecs page 1 to 0xF000 readSegment_INTV(0xF000, 0x10000); // + 8K = 48K WSML Baseball ecsBank(0xFFFF, 0x0); // reset ecs page 0 to 0xF000 } } } break; case 2: // up to 48K (16K/32K/48K) readSegment_INTV(0x5000, 0x7000); // 16K if (intvsize > 1) { readSegment_INTV(0x9000, 0xA000); // +8K = 24K [NONE] if (intvsize > 2) { readSegment_INTV(0xA000, 0xB000); // +8K = 32K if (intvsize > 3) { readSegment_INTV(0xB000, 0xC000); // +8K = 40K readSegment_INTV(0xD000, 0xE000); // +8K = 48K } } } break; case 3: // tower of doom 48K readSegment_INTV(0x5000, 0x7000); // 16K readSegment_INTV(0x9000, 0xB000); // +16K = 32K readSegment_INTV(0xD000, 0xE000); // +8K = 40K readSegment_INTV(0xF000, 0x10000); // +8K = 48K break; case 4: // chess 16K PORTH &= ~(1 << 3); // /MSYNC to LOW readSegment_INTV(0x5000, 0x6000); // 8K PORTH |= (1 << 3); // /MSYNC to HIGH readSegment_INTV(0x6000, 0x7000); // 8K break; case 5: // congo bongo/defender/pac-man/dig dug readSegment_INTV(0x5000, 0x7000); // 16K readSegment_INTV(0x7000, 0x8000); // +8K = 24K Congo Bongo/Defender/Pac-Man if (intvsize > 2) { readSegment_INTV(0x9000, 0xA000); // +8K = 32K Dig Dug //readSegment_INTV(0xA000,0xC000); // +16K = 48K [UNUSED] } break; case 6: // centipede 16K readSegment_INTV(0x6000, 0x8000); // 16K break; case 7: // imagic carts 16K readSegment_INTV(0x4800, 0x6800); // 16K break; case 8: //mte-201 test cart 16K readSegment_INTV(0x5000, 0x6000); // 8K readSegment_INTV(0x7000, 0x8000); // +8K = 16K break; case 9: // triple challenge 32K [KNOWN ROM 44K BAD!] readSegment_INTV(0x5000, 0x7000); // 16K readSegment_INTV(0x9000, 0xB000); // +16K = 32K // 0xC000 + 0xD000 SEGMENTS ARE NOT NEEDED (PER INTVNUT POST) // readSegment_INTV(0xC000,0xC800); // +4K = 36K // readSegment_INTV(0xD000,0xE000); // +8K = 44K break; } myFile.close(); // Compare CRC32 to database and rename ROM if found compareCRC("intv.txt", 0, 1, 0); println_Msg(F("")); // Prints string out of the common strings array either with or without newline print_STR(press_button_STR, 1); display_Update(); wait(); } // ECS BANKSWITCH FOR WSML BASEBALL // write $xA5y to $xFFF // x = rom location ($x000 - $xFFF) // y = page (up to 16 - WSML Baseball only uses 0/1) void ecsBank(uint32_t addr, uint8_t bank) { uint16_t ecsdata = (addr & 0xF000) + 0x0A50 + bank; // $xA5y // Data OUT DDRA = 0xFF; DDRC = 0xFF; // Set Address PORTA = (addr >> 8) & 0xFF; PORTC = addr & 0xFF; BAR_INT(); NOP; NOP; NOP; NOP; NOP; NACT_INT(); NOP; // Data OUT DDRA = 0xFF; DDRC = 0xFF; PORTA = (ecsdata >> 8) & 0xFF; // $xA PORTC = ecsdata & 0xFF; // $5y DW_INT(); NOP; NOP; NOP; NOP; NOP; DWS_INT(); NOP; NOP; NOP; NOP; NOP; NACT_INT(); NOP; NOP; NOP; NOP; NOP; } //****************************************** // MAPPER CODE //****************************************** void setMapper_INTV() { #if (defined(enable_OLED) || defined(enable_LCD)) int b = 0; int i = 0; // Check Button Status #if defined(enable_OLED) buttonVal1 = (PIND & (1 << 7)); // PD7 #elif defined(enable_LCD) boolean buttonVal1 = (PING & (1 << 2)); // PG2 #endif if (buttonVal1 == LOW) { // Button Pressed while (1) { // Scroll Mapper List #if defined(enable_OLED) buttonVal1 = (PIND & (1 << 7)); // PD7 #elif defined(enable_LCD) boolean buttonVal1 = (PING & (1 << 2)); // PG2 #endif if (buttonVal1 == HIGH) { // Button Released // Correct Overshoot if (i == 0) i = intvmapcount - 1; else i--; break; } display_Clear(); print_Msg(F("Mapper: ")); intvindex = i * 4; intvmapselect = pgm_read_byte(intvmapsize + intvindex); println_Msg(intvmapselect); display_Update(); if (i == (intvmapcount - 1)) i = 0; else i++; delay(250); } } display_Clear(); print_Msg(F("Mapper: ")); intvindex = i * 4; intvmapselect = pgm_read_byte(intvmapsize + intvindex); println_Msg(intvmapselect); println_Msg(F("")); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #endif display_Update(); while (1) { b = checkButton(); if (b == 2) { // Previous Mapper (doubleclick) if (i == 0) i = intvmapcount - 1; else i--; // Only update display after input because of slow LCD library display_Clear(); print_Msg(F("Mapper: ")); intvindex = i * 4; intvmapselect = pgm_read_byte(intvmapsize + intvindex); println_Msg(intvmapselect); println_Msg(F("")); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #endif display_Update(); } if (b == 1) { // Next Mapper (press) if (i == (intvmapcount - 1)) i = 0; else i++; // Only update display after input because of slow LCD library display_Clear(); print_Msg(F("Mapper: ")); intvindex = i * 4; intvmapselect = pgm_read_byte(intvmapsize + intvindex); println_Msg(intvmapselect); println_Msg(F("")); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #endif display_Update(); } if (b == 3) { // Long Press - Execute (hold) newintvmapper = intvmapselect; break; } } display.setCursor(0, 56); print_Msg(F("MAPPER ")); print_Msg(newintvmapper); println_Msg(F(" SELECTED")); display_Update(); delay(1000); #else setmapper: String newmap; intvmapfound = false; Serial.print(F("Enter Mapper [0-9]: ")); while (Serial.available() == 0) {} newmap = Serial.readStringUntil('\n'); Serial.println(newmap); newintvmapper = newmap.toInt(); for (int i = 0; i < intvmapcount; i++) { intvindex = i * 4; intvmapselect = pgm_read_byte(intvmapsize + intvindex); if (newintvmapper == intvmapselect) intvmapfound = true; } if (intvmapfound == false) { Serial.println(F("MAPPER NOT SUPPORTED!")); Serial.println(F("")); newintvmapper = 0; goto setmapper; } #endif EEPROM_writeAnything(7, newintvmapper); intvmapper = newintvmapper; } void checkMapperSize_INTV() { for (int i = 0; i < intvmapcount; i++) { intvindex = i * 4; byte mapcheck = pgm_read_byte(intvmapsize + intvindex); if (mapcheck == intvmapper) { intvlo = pgm_read_byte(intvmapsize + intvindex + 1); intvhi = pgm_read_byte(intvmapsize + intvindex + 2); break; } } } void setROMSize_INTV() { #if (defined(enable_OLED) || defined(enable_LCD)) display_Clear(); if (intvlo == intvhi) newintvsize = intvlo; else { int b = 0; int i = intvlo; // Only update display after input because of slow LCD library display_Clear(); print_Msg(F("ROM Size: ")); println_Msg(INTV[i]); println_Msg(F("")); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #endif display_Update(); while (1) { b = checkButton(); if (b == 2) { // Previous (doubleclick) if (i == intvlo) i = intvhi; else i--; // Only update display after input because of slow LCD library display_Clear(); print_Msg(F("ROM Size: ")); println_Msg(INTV[i]); println_Msg(F("")); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #endif display_Update(); } if (b == 1) { // Next (press) if (i == intvhi) i = intvlo; else i++; display_Clear(); print_Msg(F("ROM Size: ")); println_Msg(INTV[i]); println_Msg(F("")); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #endif display_Update(); } if (b == 3) { // Long Press - Execute (hold) newintvsize = i; break; } } display.setCursor(0, 56); // Display selection at bottom } print_Msg(F("ROM SIZE ")); print_Msg(INTV[newintvsize]); println_Msg(F("K")); display_Update(); delay(1000); #else if (intvlo == intvhi) newintvsize = intvlo; else { setrom: String sizeROM; for (int i = 0; i < (intvhi - intvlo + 1); i++) { Serial.print(F("Select ROM Size: ")); Serial.print(i); Serial.print(F(" = ")); Serial.print(INTV[i + intvlo]); Serial.println(F("K")); } Serial.print(F("Enter ROM Size: ")); while (Serial.available() == 0) {} sizeROM = Serial.readStringUntil('\n'); Serial.println(sizeROM); newintvsize = sizeROM.toInt() + intvlo; if (newintvsize > intvhi) { Serial.println(F("SIZE NOT SUPPORTED")); Serial.println(F("")); goto setrom; } } Serial.print(F("ROM Size = ")); Serial.print(INTV[newintvsize]); Serial.println(F("K")); #endif EEPROM_writeAnything(8, newintvsize); intvsize = newintvsize; } void checkStatus_INTV() { EEPROM_readAnything(7, intvmapper); EEPROM_readAnything(8, intvsize); if (intvmapper > 9) { intvmapper = 0; EEPROM_writeAnything(7, intvmapper); } if (intvsize > 4) { intvsize = 0; EEPROM_writeAnything(8, intvsize); } #if (defined(enable_OLED) || defined(enable_LCD)) display_Clear(); println_Msg(F("INTELLIVISION READER")); println_Msg(F("CURRENT SETTINGS")); println_Msg(F("")); print_Msg(F("MAPPER: ")); println_Msg(intvmapper); print_Msg(F("ROM SIZE: ")); print_Msg(INTV[intvsize]); println_Msg(F("K")); display_Update(); wait(); #else Serial.print(F("CURRENT MAPPER: ")); Serial.println(intvmapper); Serial.print(F("CURRENT ROM SIZE: ")); Serial.print(INTV[intvsize]); Serial.println(F("K")); Serial.println(F("")); #endif } //****************************************** // CART SELECT CODE //****************************************** void setCart_INTV() { char gamename[100]; char tempStr2[2]; char crc_search[9]; //go to root sd.chdir(); // Select starting letter byte myLetter = starting_letter(); // Open database if (myFile.open("intv.txt", O_READ)) { // Skip ahead to selected starting letter if ((myLetter > 0) && (myLetter <= 26)) { while (myFile.available()) { // Read current name get_line(gamename, &myFile, 96); // Compare selected letter with first letter of current name until match while (gamename[0] != 64 + myLetter) { skip_line(&myFile); skip_line(&myFile); get_line(gamename, &myFile, 96); } break; } // Rewind one line for (byte count_newline = 0; count_newline < 2; count_newline++) { while (1) { if (myFile.curPosition() == 0) { break; } else if (myFile.peek() == '\n') { myFile.seekSet(myFile.curPosition() - 1); break; } else { myFile.seekSet(myFile.curPosition() - 1); } } } if (myFile.curPosition() != 0) myFile.seekSet(myFile.curPosition() + 2); } // Display database while (myFile.available()) { display_Clear(); // Read game name get_line(gamename, &myFile, 96); // Read CRC32 checksum sprintf(checksumStr, "%c", myFile.read()); for (byte i = 0; i < 7; i++) { sprintf(tempStr2, "%c", myFile.read()); strcat(checksumStr, tempStr2); } // Skip over semicolon myFile.seekSet(myFile.curPosition() + 1); // Read CRC32 of first 512 bytes sprintf(crc_search, "%c", myFile.read()); for (byte i = 0; i < 7; i++) { sprintf(tempStr2, "%c", myFile.read()); strcat(crc_search, tempStr2); } // Skip over semicolon myFile.seekSet(myFile.curPosition() + 1); // Read mapper intvmapper = myFile.read() - 48; // Skip over semicolon myFile.seekSet(myFile.curPosition() + 1); // Read rom size // Read the next ascii character and subtract 48 to convert to decimal cartSize = myFile.read() - 48; // Remove leading 0 for single digit cart sizes if (cartSize != 0) { cartSize = cartSize * 10 + myFile.read() - 48; } else { cartSize = myFile.read() - 48; } // Skip over semicolon myFile.seekSet(myFile.curPosition() + 1); // Read SRAM size byte sramSize = myFile.read() - 48; // Skip rest of line myFile.seekSet(myFile.curPosition() + 2); // Skip every 3rd line skip_line(&myFile); println_Msg(F("Select your cartridge")); println_Msg(F("")); println_Msg(gamename); print_Msg(F("Size: ")); print_Msg(cartSize); println_Msg(F("KB")); print_Msg(F("Mapper: ")); println_Msg(intvmapper); #if defined(enable_OLED) print_STR(press_to_change_STR, 1); print_STR(right_to_select_STR, 1); #elif defined(enable_LCD) print_STR(rotate_to_change_STR, 1); print_STR(press_to_select_STR, 1); #elif defined(SERIAL_MONITOR) println_Msg(F("U/D to Change")); println_Msg(F("Space to Select")); #endif display_Update(); int b = 0; while (1) { // Check button input b = checkButton(); // Next if (b == 1) { break; } // Previous else if (b == 2) { for (byte count_newline = 0; count_newline < 7; count_newline++) { while (1) { if (myFile.curPosition() == 0) { break; } else if (myFile.peek() == '\n') { myFile.seekSet(myFile.curPosition() - 1); break; } else { myFile.seekSet(myFile.curPosition() - 1); } } } if (myFile.curPosition() != 0) myFile.seekSet(myFile.curPosition() + 2); break; } // Selection else if (b == 3) { //byte INTV[] = {8, 16, 24, 32, 48}; switch (cartSize) { case 8: intvsize = 0; break; case 16: intvsize = 1; break; case 24: intvsize = 2; break; case 32: intvsize = 3; break; case 48: intvsize = 4; break; default: intvsize = 0; break; } EEPROM_writeAnything(7, intvmapper); EEPROM_writeAnything(8, intvsize); myFile.close(); break; } } } } else { print_Error(F("Database file not found"), true); } } #endif //****************************************** // End of File //******************************************