mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-15 09:25:06 +01:00
322 lines
7.6 KiB
C++
322 lines
7.6 KiB
C++
//******************************************
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// BALLY ASTROCADE MODULE
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//******************************************
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#ifdef ENABLE_BALLY
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// Bally Astrocade
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// Cartridge Pinout
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// 26P 2.54mm pitch connector
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//
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// BOTTOM
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// +-------+
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// GND -| 1 |
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// A7 -| 2 |
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// A6 -| 3 |
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// A5 -| 4 |
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// A4 -| 5 |
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// A3 -| 6 |
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// A2 -| 7 |
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// A1 -| 8 |
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// A0 -| 9 |
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// D0 -| 10 |
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// D1 -| 11 |
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// D2 -| 12 |
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// GND -| 13 |
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// D3 -| 14 |
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// D4 -| 15 |
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// D5 -| 16 |
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// D6 -| 17 |
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// D7 -| 18 |
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// A11 -| 19 |
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// A10 -| 20 |
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// /ENABLE -| 21 |
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// A12 -| 22 |
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// A9 -| 23 |
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// A8 -| 24 |
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// VCC(+5V) -| 25 |
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// GND -| 26 |
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// +-------+
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//
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// TOP SIDE
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// +-----------------------------------------------------------------------------------------------------------+
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// LEFT | | RIGHT
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// | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 |
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// +-----------------------------------------------------------------------------------------------------------+
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// GND A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND D3 D4 D5 D6 D7 A11 A10 /EN A12 A9 A8 +5V GND
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//
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// BOTTOM SIDE
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// CONTROL PINS:
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// /ENABLE(PH3) - SNES /CS
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//******************************************
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// VARIABLES
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//******************************************
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byte BALLY[] = {2,4,8};
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byte ballylo = 0; // Lowest Entry
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byte ballyhi = 2; // Highest Entry
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byte ballysize;
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byte newballysize;
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// EEPROM MAPPING
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// 08 ROM SIZE
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//******************************************
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// MENU
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//******************************************
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// Base Menu
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static const char* const menuOptionsBALLY[] PROGMEM = { FSTRING_SELECT_CART, FSTRING_READ_ROM, FSTRING_SET_SIZE, FSTRING_RESET };
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void ballyMenu()
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{
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convertPgm(menuOptionsBALLY, 4);
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uint8_t mainMenu = question_box(F("BALLY ASTROCADE MENU"), menuOptions, 4, 0);
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switch (mainMenu)
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{
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case 0:
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// Select Cart
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setCart_BALLY();
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setup_BALLY();
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break;
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case 1:
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// Read ROM
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sd.chdir("/");
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readROM_BALLY();
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sd.chdir("/");
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break;
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case 2:
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// Set Size
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setROMSize_BALLY();
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break;
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case 3:
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// reset
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resetArduino();
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break;
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}
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}
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//******************************************
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// SETUP
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//******************************************
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void setup_BALLY()
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{
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// Request 5V
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setVoltage(VOLTS_SET_5V);
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// Set Address Pins to Output
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// Bally Astrocade uses A0-A12 [A13-A23 UNUSED]
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//A0-A7
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DDRF = 0xFF;
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//A8-A15
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DDRK = 0xFF;
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//A16-A23
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DDRL = 0xFF;
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// Set Control Pins to Output
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// ---(PH0) ---(PH1) /ENABLE(PH3) ---(PH4) ---(PH5) ---(PH6)
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DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Set TIME(PJ0) to Output (UNUSED)
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DDRJ |= (1 << 0);
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// Set Pins (D0-D7) to Input
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DDRC = 0x00;
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// Setting Control Pins to HIGH
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// ---(PH0) ---(PH1) /ENABLE(PH3) ---(PH4) ---(PH5) ---(PH6)
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PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Set Unused Data Pins (PA0-PA7) to Output
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DDRA = 0xFF;
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// Set Unused Pins HIGH
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PORTA = 0xFF;
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PORTL = 0xFF; // A16-A23
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PORTJ |= (1 << 0); // TIME(PJ0)
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checkStatus_BALLY();
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strcpy(romName, "BALLY");
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mode = CORE_BALLY;
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}
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//******************************************
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// READ FUNCTIONS
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//******************************************
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uint8_t readData_BALLY(uint16_t addr)
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{
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PORTF = addr & 0xFF; // A0-A7
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PORTK = (addr >> 8) & 0xFF; // A8-A15
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PORTC = 0xFF; // Input Pullup
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PORTH &= ~(1 << 3); // /ENABLE LOW
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NOP;
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NOP;
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NOP;
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NOP;
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NOP;
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uint8_t ret = PINC;
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PORTH |= (1 << 3); // /ENABLE HIGH
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return ret;
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}
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void readSegment_BALLY(uint16_t startaddr, uint16_t endaddr)
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{
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for (uint16_t addr = startaddr; addr < endaddr; addr += 512) {
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for (int w = 0; w < 512; w++) {
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uint8_t temp = readData_BALLY(addr + w);
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sdBuffer[w] = temp;
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}
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myFile.write(sdBuffer, 512);
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}
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}
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//******************************************
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// READ ROM
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//******************************************
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void readROM_BALLY()
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{
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createFolderAndOpenFile("BALLY", "ROM", romName, "bin");
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readSegment_BALLY(0x0000,0x0800); // 2K
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if (ballysize > 0) {
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readSegment_BALLY(0x0800,0x1000); // +2K = 4K
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if (ballysize > 1) {
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readSegment_BALLY(0x1000,0x2000); // +4K = 8K
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}
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}
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myFile.close();
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printCRC(fileName, NULL, 0);
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println_Msg(FS(FSTRING_EMPTY));
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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}
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//******************************************
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// ROM SIZE
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//******************************************
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#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
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void printRomSize_BALLY(int index)
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{
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display_Clear();
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print_Msg(FS(FSTRING_ROM_SIZE));
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println_Msg(BALLY[index]);
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}
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#endif
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void setROMSize_BALLY()
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{
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byte newballysize;
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#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
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display_Clear();
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if (ballylo == ballyhi)
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newballysize = ballylo;
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else {
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newballysize = navigateMenu(ballylo, ballyhi, &printRomSize_BALLY);
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display.setCursor(0, 56); // Display selection at bottom
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}
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print_Msg(FS(FSTRING_ROM_SIZE));
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print_Msg(BALLY[newballysize]);
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println_Msg(F("KB"));
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display_Update();
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delay(1000);
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#else
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if (ballylo == ballyhi)
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newballysize = ballylo;
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else {
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setrom:
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String sizeROM;
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for (int i = 0; i < (ballyhi - ballylo + 1); i++) {
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Serial.print(F("Select ROM Size: "));
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Serial.print(i);
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Serial.print(F(" = "));
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Serial.print(BALLY[i + ballylo]);
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Serial.println(F("KB"));
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}
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Serial.print(F("Enter ROM Size: "));
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while (Serial.available() == 0) {}
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sizeROM = Serial.readStringUntil('\n');
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Serial.println(sizeROM);
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newballysize = sizeROM.toInt() + ballylo;
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if (newballysize > ballyhi) {
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Serial.println(F("SIZE NOT SUPPORTED"));
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Serial.println(FS(FSTRING_EMPTY));
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goto setrom;
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}
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}
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Serial.print(F("ROM Size = "));
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Serial.print(BALLY[newballysize]);
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Serial.println(F("KB"));
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#endif
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EEPROM_writeAnything(8, newballysize);
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ballysize = newballysize;
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}
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void checkStatus_BALLY()
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{
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EEPROM_readAnything(8, ballysize);
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if (ballysize > ballyhi) {
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ballysize = 0; // default 2K
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EEPROM_writeAnything(8, ballysize);
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}
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#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
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display_Clear();
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println_Msg(F("BALLY ASTROCADE"));
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println_Msg(FS(FSTRING_CURRENT_SETTINGS));
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println_Msg(FS(FSTRING_EMPTY));
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print_Msg(FS(FSTRING_ROM_SIZE));
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print_Msg(BALLY[ballysize]);
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println_Msg(F("KB"));
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display_Update();
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wait();
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#else
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Serial.print(FS(FSTRING_ROM_SIZE));
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Serial.print(BALLY[ballysize]);
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Serial.println(F("KB"));
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Serial.println(FS(FSTRING_EMPTY));
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#endif
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}
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//******************************************
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// CART SELECT CODE
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//******************************************
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void setCart_BALLY()
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{
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//go to root
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sd.chdir();
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byte gameSize;
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// Select starting letter
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//byte myLetter = starting_letter();
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// Open database
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if (myFile.open("ballycart.txt", O_READ)) {
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// seek_first_letter_in_database(myFile, myLetter);
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if(checkCartSelection(myFile, &readDataLineSingleDigit, &gameSize)) {
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EEPROM_writeAnything(8, gameSize);
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}
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} else {
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print_FatalError(FS(FSTRING_DATABASE_FILE_NOT_FOUND));
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}
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}
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#endif
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