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