cartreader/Cart_Reader/5200.ino

675 lines
18 KiB
C++

//******************************************
// ATARI 5200 MODULE
//******************************************
#ifdef ENABLE_5200
// Atari 5200
// Cartridge Pinout
// 36P 2.54mm pitch connector
//
// RIGHT
// +-------+
// INTERLOCK -| 18 19 |- A0
// A2 -| 17 20 |- A1
// L A5 -| 16 21 |- A3
// A A6 -| 15 22 |- A4 B
// B GND -| 14 23 |- GND O
// E GND -| 13 24 |- GND T
// L GND -| 12 25 |- GND T
// N/C -| 11 26 |- +5V O
// /ENABLE 4000-7FFF -| 10 27 |- A7 M
// /ENABLE 8000-BFFF -| 9 28 |- N/C
// D7 -| 8 29 |- A8 S
// S D6 -| 7 30 |- AUD I
// I D5 -| 6 31 |- A9 D
// D D4 -| 5 32 |- A13 E
// E D3 -| 4 33 |- A10
// D2 -| 3 34 |- A12
// D1 -| 2 35 |- A11
// D0 -| 1 36 |- INTERLOCK
// +-------+
// LEFT
//
// LABEL SIDE
//
// /EN /EN
// D0 D1 D2 D3 D4 D5 D6 D7 80 40 -- GND GND GND A6 A5 A2 INT
// +--------------------------------------------------------------------------+
// | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
// LEFT | | RIGHT
// | 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 |
// +--------------------------------------------------------------------------+
// INT A11 A12 A10 A13 A9 AUD A8 -- A7 +5V GND GND GND A4 A3 A1 A0
//
// BOTTOM SIDE
// CONTROL PINS:
// /4000(PH5) - SNES /WR
// /8000(PH6) - SNES /RD
//******************************************
// Defines
//******************************************
#define DISABLE_4000 PORTH |= (1 << 5) // ROM SELECT 4000-7FFF
#define ENABLE_4000 PORTH &= ~(1 << 5)
#define DISABLE_8000 PORTH |= (1 << 6) // ROM SELECT 8000-BFFF
#define ENABLE_8000 PORTH &= ~(1 << 6)
//******************************************
// Supported Mappers
//******************************************
// Supported Mapper Array
// Format = {mapper,romsizelo,romsizehi}
static const byte PROGMEM a5200mapsize[] = {
0, 0, 3, // Standard 4K/8K/16K/32K
1, 2, 2, // Two Chip 16K
2, 4, 4, // Bounty Bob Strikes Back 40K [UNTESTED]
};
byte a5200mapcount = 3; // (sizeof(a5200mapsize) / sizeof(a5200mapsize[0])) / 3;
byte a5200mapselect;
int a5200index;
byte a5200[] = { 4, 8, 16, 32, 40 };
byte a5200lo = 0; // Lowest Entry
byte a5200hi = 4; // Highest Entry
byte a5200mapper = 0;
byte new5200mapper;
byte a5200size;
byte new5200size;
// EEPROM MAPPING
// 07 MAPPER
// 08 ROM SIZE
//******************************************
// Menu
//******************************************
// Base Menu
static const char* const menuOptions5200[] PROGMEM = { FSTRING_SELECT_CART, FSTRING_READ_ROM, FSTRING_SET_SIZE, FSTRING_RESET };
void setup_5200() {
// Request 5V
setVoltage(VOLTS_SET_5V);
// Set Address Pins to Output
// Atari 5200 uses A0-A13 [A14-A23 UNUSED]
//A0-A7
DDRF = 0xFF;
//A8-A15
DDRK = 0xFF;
//A16-A23
DDRL = 0xFF;
// Set Control Pins to Output
// ---(PH0) ---(PH1) ---(PH3) ---(PH4) /4000(PH5) /8000(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) ---(PH3) ---(PH4) /4000(PH5) /8000(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_5200();
strcpy(romName, "ATARI");
mode = CORE_5200;
}
void a5200Menu() {
convertPgm(menuOptions5200, 4);
uint8_t mainMenu = question_box(F("ATARI 5200 MENU"), menuOptions, 4, 0);
switch (mainMenu) {
case 0:
// Select Cart
setCart_5200();
setup_5200();
break;
case 1:
// Read ROM
sd.chdir("/");
readROM_5200();
sd.chdir("/");
break;
case 2:
// Set Mapper + Size
setMapper_5200();
checkMapperSize_5200();
setROMSize_5200();
break;
case 3:
// reset
resetArduino();
break;
}
}
//******************************************
// READ CODE
//******************************************
uint8_t readData_5200(uint16_t addr) // Add Input Pullup
{
PORTF = addr & 0xFF; // A0-A7
PORTK = (addr >> 8) & 0xFF; // A8-A13
NOP;
NOP;
NOP;
NOP;
NOP;
// DDRC = 0x00; // Set to Input
PORTC = 0xFF; // Input Pullup
NOP;
NOP;
NOP;
NOP;
NOP;
// Extended Delay for Vanguard
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
uint8_t ret = PINC;
NOP;
NOP;
NOP;
NOP;
NOP;
return ret;
}
void readSegment_5200(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_5200(addr + w);
sdBuffer[w] = temp;
}
myFile.write(sdBuffer, 512);
}
}
//******************************************
// READ ROM
//******************************************
void readROM_5200() {
strcpy(fileName, romName);
strcat(fileName, ".a52");
// create a new folder for storing rom file
EEPROM_readAnything(0, foldern);
sprintf(folder, "5200/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_FatalError(sd_error_STR);
// write new folder number back to EEPROM
foldern++;
EEPROM_writeAnything(0, foldern);
// 5200 A13-A0 = 10 0000 0000 0000
switch (a5200mapper) {
case 0: // Standard 4KB/8KB/16KB/32KB
// Lower Half of 32K is at 0x4000
if (a5200size == 3) { // 32K
ENABLE_4000;
readSegment_5200(0x4000, 0x8000); // +16K = 32K
DISABLE_4000;
}
// 4K/8K/16K + Upper Half of 32K
ENABLE_8000;
if (a5200size > 1)
readSegment_5200(0x8000, 0xA000); // +8K = 16K
if (a5200size > 0)
readSegment_5200(0xA000, 0xB000); // +4K = 8K
// Base 4K
readSegment_5200(0xB000, 0xC000); // 4K
DISABLE_8000;
break;
case 1: // Two Chip 16KB
ENABLE_4000;
readSegment_5200(0x4000, 0x6000); // 8K
DISABLE_4000;
ENABLE_8000;
readSegment_5200(0x8000, 0xA000); // +8K = 16K
DISABLE_8000;
break;
case 2: // Bounty Bob Strikes Back 40KB [UNTESTED]
ENABLE_4000;
// First 16KB (4KB x 4)
for (int w = 0; w < 4; w++) {
readData_5200(0x4FF6 + w);
readSegment_5200(0x4000, 0x4E00);
// Split Read of Last 0x200 bytes
for (int x = 0; x < 0x1F6; x++) {
sdBuffer[x] = readData_5200(0x4E00 + x);
}
myFile.write(sdBuffer, 502);
// Bank Registers 0x4FF6-0x4FF9
for (int y = 0; y < 4; y++) {
readData_5200(0x4FFF); // Reset Bank
sdBuffer[y] = readData_5200(0x4FF6 + y);
}
// End of Bank 0x4FFA-0x4FFF
readData_5200(0x4FFF); // Reset Bank
readData_5200(0x4FF6 + w); // Set Bank
for (int z = 4; z < 10; z++) {
sdBuffer[z] = readData_5200(0x4FF6 + z); // 0x4FFA-0x4FFF
}
myFile.write(sdBuffer, 10);
}
readData_5200(0x4FFF); // Reset Bank
// Second 16KB (4KB x 4)
for (int w = 0; w < 4; w++) {
readData_5200(0x5FF6 + w);
readSegment_5200(0x5000, 0x5E00);
// Split Read of Last 0x200 bytes
for (int x = 0; x < 0x1F6; x++) {
sdBuffer[x] = readData_5200(0x5E00 + x);
}
myFile.write(sdBuffer, 502);
// Bank Registers 0x5FF6-0x5FF9
for (int y = 0; y < 4; y++) {
readData_5200(0x5FFF); // Reset Bank
sdBuffer[y] = readData_5200(0x5FF6 + y);
}
// End of Bank 0x5FFA-0x5FFF
readData_5200(0x5FFF); // Reset Bank
readData_5200(0x5FF6 + w); // Set Bank
for (int z = 4; z < 10; z++) {
sdBuffer[z] = readData_5200(0x5FF6 + z); // 0x5FFA-0x5FFF
}
myFile.write(sdBuffer, 10);
}
readData_5200(0x5FFF); // Reset Bank
DISABLE_4000;
ENABLE_8000;
readSegment_5200(0x8000, 0xA000); // +8K = 40K
DISABLE_8000;
break;
}
myFile.close();
unsigned long crcsize = a5200[a5200size] * 0x400;
calcCRC(fileName, crcsize, NULL, 0);
println_Msg(FS(FSTRING_EMPTY));
// Prints string out of the common strings array either with or without newline
print_STR(press_button_STR, 1);
display_Update();
wait();
}
//******************************************
// ROM SIZE
//******************************************
void println_Mapper5200(byte mapper) {
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
if (mapper == 0)
println_Msg(F("STANDARD"));
else if (mapper == 1)
println_Msg(F("TWO CHIP"));
else if (mapper == 2)
println_Msg(F("BOUNTY BOB"));
#else
if (mapper == 0)
Serial.println(F("STANDARD"));
else if (mapper == 1)
Serial.println(F("TWO CHIP"));
else if (mapper == 2)
Serial.println(F("BOUNTY BOB"));
#endif
}
void checkMapperSize_5200() {
for (int i = 0; i < a5200mapcount; i++) {
a5200index = i * 3;
byte mapcheck = pgm_read_byte(a5200mapsize + a5200index);
if (mapcheck == a5200mapper) {
a5200lo = pgm_read_byte(a5200mapsize + a5200index + 1);
a5200hi = pgm_read_byte(a5200mapsize + a5200index + 2);
break;
}
}
}
void setROMSize_5200() {
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
display_Clear();
if (a5200lo == a5200hi)
new5200size = a5200lo;
else {
uint8_t b = 0;
int i = a5200lo;
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(a5200[i]);
println_Msg(FS(FSTRING_EMPTY));
#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 == a5200lo)
i = a5200hi;
else
i--;
// Only update display after input because of slow LCD library
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(a5200[i]);
println_Msg(FS(FSTRING_EMPTY));
#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 == a5200hi)
i = a5200lo;
else
i++;
// Only update display after input because of slow LCD library
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(a5200[i]);
println_Msg(FS(FSTRING_EMPTY));
#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)
new5200size = i;
break;
}
}
display.setCursor(0, 56); // Display selection at bottom
}
print_Msg(F("ROM SIZE "));
print_Msg(a5200[new5200size]);
println_Msg(F("K"));
display_Update();
delay(1000);
#else
if (a5200lo == a5200hi)
new5200size = a5200lo;
else {
setrom:
String sizeROM;
for (int i = 0; i < (a5200hi - a5200lo + 1); i++) {
Serial.print(F("Select ROM Size: "));
Serial.print(i);
Serial.print(F(" = "));
Serial.print(a5200[i + a5200lo]);
Serial.println(F("K"));
}
Serial.print(F("Enter ROM Size: "));
while (Serial.available() == 0) {}
sizeROM = Serial.readStringUntil('\n');
Serial.println(sizeROM);
new5200size = sizeROM.toInt() + a5200lo;
if (new5200size > a5200hi) {
Serial.println(F("SIZE NOT SUPPORTED"));
Serial.println(FS(FSTRING_EMPTY));
goto setrom;
}
}
Serial.print(F("ROM Size = "));
Serial.print(a5200[new5200size]);
Serial.println(F("K"));
#endif
EEPROM_writeAnything(8, new5200size);
a5200size = new5200size;
}
void checkStatus_5200() {
EEPROM_readAnything(7, a5200mapper);
EEPROM_readAnything(8, a5200size);
if (a5200mapper > 2) {
a5200mapper = 0; // default STANDARD
EEPROM_writeAnything(7, a5200mapper);
}
if (a5200size > 4) {
a5200size = 1; // default 8K
EEPROM_writeAnything(8, a5200size);
}
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
display_Clear();
println_Msg(F("ATARI 5200 READER"));
println_Msg(FS(FSTRING_CURRENT_SETTINGS));
println_Msg(FS(FSTRING_EMPTY));
print_Msg(F("MAPPER: "));
println_Msg(a5200mapper);
println_Mapper5200(a5200mapper);
print_Msg(F("ROM SIZE: "));
print_Msg(a5200[a5200size]);
println_Msg(F("K"));
display_Update();
wait();
#else
Serial.print(F("MAPPER: "));
Serial.println(a5200mapper);
println_Mapper5200(a5200mapper);
Serial.print(F("ROM SIZE: "));
Serial.print(a5200[a5200size]);
Serial.println(F("K"));
Serial.println(FS(FSTRING_EMPTY));
#endif
}
//******************************************
// SET MAPPER
//******************************************
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
void displayMapperSelect_5200(int index, boolean printInstructions) {
display_Clear();
print_Msg(F("Mapper: "));
a5200index = index * 3;
a5200mapselect = pgm_read_byte(a5200mapsize + a5200index);
println_Msg(a5200mapselect);
println_Mapper5200(a5200mapselect);
if(printInstructions) {
println_Msg(FS(FSTRING_EMPTY));
#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();
}
#endif
void setMapper_5200() {
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
uint8_t 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)
buttonVal1 = (PING & (1 << 2)); //PG2
#endif
if (buttonVal1 == HIGH) { // Button Released
// Correct Overshoot
if (i == 0)
i = a5200mapcount - 1;
else
i--;
break;
}
displayMapperSelect_5200(i, false);
if (i == (a5200mapcount - 1))
i = 0;
else
i++;
delay(250);
}
}
displayMapperSelect_5200(i, true);
while (1) {
b = checkButton();
if (b == 2) { // Previous Mapper (doubleclick)
if (i == 0)
i = a5200mapcount - 1;
else
i--;
// Only update display after input because of slow LCD library
displayMapperSelect_5200(i, true);
}
if (b == 1) { // Next Mapper (press)
if (i == (a5200mapcount - 1))
i = 0;
else
i++;
// Only update display after input because of slow LCD library
displayMapperSelect_5200(i, true);
}
if (b == 3) { // Long Press - Execute (hold)
new5200mapper = a5200mapselect;
break;
}
}
display.setCursor(0, 56);
print_Msg(F("MAPPER "));
print_Msg(new5200mapper);
println_Msg(F(" SELECTED"));
display_Update();
delay(1000);
#else
setmapper:
String newmap;
Serial.println(F("SUPPORTED MAPPERS:"));
Serial.println(F("0 = Standard 4K/8K/16K/32K"));
Serial.println(F("1 = Two Chip 16K"));
Serial.println(F("2 = Bounty Bob Strikes Back 40K"));
Serial.print(F("Enter Mapper [0-2]: "));
while (Serial.available() == 0) {}
newmap = Serial.readStringUntil('\n');
Serial.println(newmap);
a5200index = newmap.toInt() * 3;
new5200mapper = pgm_read_byte(a5200mapsize + a5200index);
#endif
EEPROM_writeAnything(7, new5200mapper);
a5200mapper = new5200mapper;
}
//******************************************
// CART SELECT CODE
//******************************************
struct database_entry_5200 {
byte gameMapper;
byte gameSize;
};
void readDataLine_5200(FsFile& database, struct database_entry_5200* entry) {
// Read mapper
entry->gameMapper = database.read() - 48;
// Skip over semicolon
database.seekCur(1);
// Read rom size
entry->gameSize = database.read() - 48;
// Skip rest of line
database.seekCur(2);
}
void setCart_5200() {
//go to root
sd.chdir();
struct database_entry_5200 entry;
// Select starting letter
byte myLetter = starting_letter();
// Open database
if (myFile.open("5200.txt", O_READ)) {
seek_first_letter_in_database(myFile, myLetter);
if(checkCartSelection(myFile, &readDataLine_5200, &entry)) {
EEPROM_writeAnything(7, entry.gameMapper);
EEPROM_writeAnything(8, entry.gameSize);
}
} else {
print_FatalError(FS(FSTRING_DATABASE_FILE_NOT_FOUND));
}
}
#endif