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cartreader/Cart_Reader/7800.ino
sakman55 603a22116c
Update 7800.ino 
Removed "[UNTESTED]" from Karateka (PAL) entries.
2023-09-23 07:36:05 -10:00

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//******************************************
// ATARI 7800 MODULE
//******************************************
#ifdef enable_7800
// Atari 7800
// Cartridge Pinout
// 32P 2.54mm pitch (USE 36P CONNECTOR)
//
// RIGHT
// +-------+
// R/W -| 1 32 |- CLK
// HALT -| 2 31 |- IRQ
// |-------|
// D3 -| 3 30 |- GND
// L D4 -| 4 29 |- D2 B
// A D5 -| 5 28 |- D1 O
// B D6 -| 6 27 |- D0 T
// E D7 -| 7 26 |- A0 T
// L A12 -| 8 25 |- A1 O
// A10 -| 9 24 |- A2 M
// S A11 -| 10 23 |- A3
// I A9 -| 11 22 |- A4 S
// D A8 -| 12 21 |- A5 I
// E +5V -| 13 20 |- A6 D
// GND -| 14 19 |- A7 E
// |-------|
// A13 -| 15 18 |- AUD
// A14 -| 16 17 |- A15
// +-------+
// LEFT
//
// LABEL SIDE
//
// A14 A13 GND +5V A8 A9 A11 A10 A12 D7 D6 D5 D4 D3 HLT R/W
// +--------------------------------------------------------------------+
// | 16 15 | 14 13 12 11 10 9 8 7 6 5 4 3 | 2 1 |
// LEFT | | | | RIGHT
// | 17 18 | 19 20 21 22 23 24 25 26 27 28 29 30 | 31 32 |
// +--------------------------------------------------------------------+
// A15 AUD A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND IRQ CLK
//
// BOTTOM SIDE
// CONTROL PINS:
// CLK(PH1) - SNES CPUCLK
// R/W(PH6) - SNES /RD
//******************************************
// Supported Mappers
//******************************************
// Supported Mapper Array
// Format = {mapper,romsizelo,romsizehi}
static const byte PROGMEM a7800mapsize[] = {
0, 0, 2, // Standard 16K/32K/48K [7816/7832/7848]
1, 4, 4, // SuperGame 128K [78SG]
2, 5, 5, // SuperGame - Alien Brigade/Crossbow 144K [78S9]
3, 3, 3, // F-18 Hornet 64K [78AB]
4, 4, 4, // Double Dragon/Rampage 128K [78AC]
5, 3, 3, // Realsports Baseball/Tank Command/Tower Toppler/Waterski 64K [78S4]
6, 3, 3, // Karateka (PAL) 64K [78S4 Variant]
};
byte a7800mapcount = 7; // (sizeof(a7800mapsize) / sizeof(a7800mapsize[0])) / 3;
byte a7800mapselect;
int a7800index;
byte a7800[] = { 16, 32, 48, 64, 128, 144 };
byte a7800lo = 0; // Lowest Entry
byte a7800hi = 5; // Highest Entry
byte a7800mapper = 0;
byte new7800mapper;
byte a7800size;
byte new7800size;
// EEPROM MAPPING
// 07 MAPPER
// 08 ROM SIZE
//******************************************
// Menu
//******************************************
// Base Menu
static const char a7800MenuItem1[] PROGMEM = "Select Cart";
static const char a7800MenuItem2[] PROGMEM = "Read ROM";
static const char a7800MenuItem3[] PROGMEM = "Set Mapper + Size";
static const char* const menuOptions7800[] PROGMEM = { a7800MenuItem1, a7800MenuItem2, a7800MenuItem3, string_reset2 };
void setup_7800() {
// Request 5V
setVoltage(VOLTS_SET_5V);
// Set Address Pins to Output
// Atari 7800 uses A0-A15 [A16-A23 UNUSED]
//A0-A7
DDRF = 0xFF;
//A8-A15
DDRK = 0xFF;
//A16-A23
DDRL = 0xFF;
// Set Control Pins to Output
// ---(PH0) CLK(PH1) ---(PH3) ---(PH4) ---(PH5) R/W(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) CLK(PH1) ---(PH3) ---(PH4) ---(PH5) R/W(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_7800();
strcpy(romName, "ATARI");
mode = mode_7800;
}
void a7800Menu() {
convertPgm(menuOptions7800, 4);
uint8_t mainMenu = question_box(F("ATARI 7800 MENU"), menuOptions, 4, 0);
switch (mainMenu) {
case 0:
// Select Cart
setCart_7800();
wait();
setup_7800();
break;
case 1:
// Read ROM
sd.chdir("/");
readROM_7800();
sd.chdir("/");
break;
case 2:
// Set Mapper + Size
setMapper_7800();
checkMapperSize_7800();
setROMSize_7800();
break;
case 3:
// reset
resetArduino();
break;
}
}
//******************************************
// READ CODE
//******************************************
uint8_t readData_7800(uint32_t addr) // Add Input Pullup
{
PORTF = addr & 0xFF; // A0-A7
PORTK = (addr >> 8) & 0xFF; // A8-A15
NOP;
NOP;
NOP;
NOP;
NOP;
// DDRC = 0x00; // Set to Input
PORTC = 0xFF; // Input Pullup
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
uint8_t ret = PINC;
NOP;
NOP;
NOP;
NOP;
NOP;
return ret;
}
void readSegment_7800(uint32_t startaddr, uint32_t endaddr) {
for (uint32_t addr = startaddr; addr < endaddr; addr += 512) {
for (int w = 0; w < 512; w++) {
uint8_t temp = readData_7800(addr + w);
sdBuffer[w] = temp;
}
myFile.write(sdBuffer, 512);
}
}
void writeData_7800(uint32_t addr, uint8_t data) {
PORTF = addr & 0xFF; // A0-A7
PORTK = (addr >> 8) & 0xFF; // A8-A15
NOP;
NOP;
NOP;
NOP;
NOP;
DDRC = 0xFF; // Set to Output
NOP;
NOP;
NOP;
NOP;
NOP;
PORTC = data;
NOP;
NOP;
NOP;
NOP;
NOP;
PORTH &= ~(1 << 6); // R/W(PH6) LOW = WRITE
NOP;
NOP;
NOP;
NOP;
NOP;
PORTH |= (1 << 6); // R/W(PH6) HIGH = READ
DDRC = 0x00; // Reset to Input
}
// Activision Bankswitch - Double Dragon/Rampage 128K
void bankSwitch_7800(uint32_t addr) {
PORTF = addr & 0xFF; // A0-A7
PORTK = (addr >> 8) & 0xFF; // A8-A15
NOP;
NOP;
NOP;
NOP;
NOP;
PORTH &= ~(1 << 6); // R/W(PH6) LOW = WRITE
for (int y = 0; y < 8; y++) { // Pulse Clock to latch data into PAL16 Chip
PORTH &= ~(1 << 1); // CLK(PH1) LOW
NOP;
PORTH |= (1 << 1); // CLK(PH1) HIGH
NOP;
}
PORTH |= (1 << 6); // R/W(PH6) HIGH = READ
DDRC = 0x00; // Reset to Input
}
//******************************************
// READ ROM
//******************************************
void readROM_7800() {
strcpy(fileName, romName);
strcat(fileName, ".a78");
// create a new folder for storing rom file
EEPROM_readAnything(0, foldern);
sprintf(folder, "7800/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);
switch (a7800mapper) {
case 0: // Standard 16K/32K/48K [7816/7832/7848]
if (a7800size > 1)
readSegment_7800(0x4000, 0x8000); // +16K = 48K
if (a7800size > 0)
readSegment_7800(0x8000, 0xC000); // +16K = 32K
// Base 16K
readSegment_7800(0xC000, 0x10000); // 16K
break;
case 1: // SuperGame 128K [78SG]
for (int x = 0; x < 7; x++) {
writeData_7800(0x8000, x); // Banks 0-6
readSegment_7800(0x8000, 0xC000); // 16K * 7 = 112K
}
readSegment_7800(0xC000, 0x10000); // Bank 7 +16 = 128K
break;
case 2: // SuperGame - Alien Brigade/Crossbow 144K [78S9]
readSegment_7800(0x4000, 0x8000); // 16K
for (int x = 0; x < 8; x++) {
writeData_7800(0x8000, x); // Banks 0-7
readSegment_7800(0x8000, 0xC000); // 16K * 8 = +128K = 144K
}
break;
case 3: // F-18 Hornet 64K [78AB]
for (int x = 1; x >= 0; x--) { // Bank Order Inverted = Bank 1 then Bank 0
writeData_7800(0x8000, x); // Banks 0-1
readSegment_7800(0x4000, 0x8000); // 16K * 2 = 32K
}
readSegment_7800(0x8000, 0x10000); // +32K = 64K
break;
case 4: // Double Dragon/Rampage 128K [78AC]
/*
// THIS CODE OUTPUTS ROMS THAT SHOULD MATCH THE CURRENT NO-INTRO DATABASE
// BUT THE ROMS INCLUDED IN THE NO-INTRO DATABASE WERE DONE INCORRECTLY
// THE UPPER AND LOWER HALVES OF EACH 16K BANK ARE IN THE WRONG ORDER
// THE OLD BANKSWITCH INFORMATION IS INCORRECT/INCOMPLETE
// Double Dragon (NTSC) = CRC32 AA265865 BAD
// Double Dragon (PAL) = CRC32 F29ABDB2 BAD
// Rampage (NTSC) = CRC32 39A316AA BAD
for (int x = 0; x < 8; x++) {
bankSwitch_7800(0xFF80 + x); // Activision Bankswitch
readSegment_7800(0xA000, 0xE000); // 16K * 8 = 128K
}
*/
// THIS CODE OUTPUTS PROPER ROMS THAT SHOULD MATCH MAME
// THE UPPER AND LOWER HALVES OF EACH 16K BANK ARE IN THE CORRECT ORDER
// Double Dragon (NTSC) = CRC32 F20773D5
// Double Dragon (PAL) = CRC32 4D634BF5
// Rampage (NTSC) = CRC32 D2876EE2
for (int x = 0; x < 8; x++) {
bankSwitch_7800(0xFF80 + x); // Activision Bankswitch
readSegment_7800(0xC000, 0xE000); // 8K * 8 = 64K
readSegment_7800(0xA000, 0xC000); // 8K * 8 = +64K = 128K
}
break;
case 5: // Realsports Baseball/Tank Command/Tower Toppler/Waterski 64K [78S4]
for (int x = 0; x < 4; x++) {
writeData_7800(0x8000, x);
readSegment_7800(0x8000, 0xC000); // 16K * 4 = 64K
}
break;
case 6: // Karateka (PAL) 64K [78S4 Variant]
for (int x = 4; x < 8; x++) {
writeData_7800(0x8000, x);
readSegment_7800(0x8000, 0xC000); // 16K * 4 = 64K
}
break;
}
myFile.close();
unsigned long crcsize = a7800[a7800size] * 0x400;
calcCRC(fileName, crcsize, NULL, 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();
}
//******************************************
// ROM SIZE
//******************************************
void checkMapperSize_7800() {
for (int i = 0; i < a7800mapcount; i++) {
a7800index = i * 3;
byte mapcheck = pgm_read_byte(a7800mapsize + a7800index);
if (mapcheck == a7800mapper) {
a7800lo = pgm_read_byte(a7800mapsize + a7800index + 1);
a7800hi = pgm_read_byte(a7800mapsize + a7800index + 2);
break;
}
}
}
void setROMSize_7800() {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
if (a7800lo == a7800hi)
new7800size = a7800lo;
else {
int b = 0;
int i = a7800lo;
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(a7800[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 == a7800lo)
i = a7800hi;
else
i--;
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(a7800[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 == a7800hi)
i = a7800lo;
else
i++;
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(a7800[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)
new7800size = i;
break;
}
}
display.setCursor(0, 56); // Display selection at bottom
}
print_Msg(F("ROM SIZE "));
print_Msg(a7800[new7800size]);
println_Msg(F("K"));
display_Update();
delay(1000);
#else
if (a7800lo == a7800hi)
new7800size = a7800lo;
else {
setrom:
String sizeROM;
for (int i = 0; i < (a7800hi - a7800lo + 1); i++) {
Serial.print(F("Select ROM Size: "));
Serial.print(i);
Serial.print(F(" = "));
Serial.print(a7800[i + a7800lo]);
Serial.println(F("K"));
}
Serial.print(F("Enter ROM Size: "));
while (Serial.available() == 0) {}
sizeROM = Serial.readStringUntil('\n');
Serial.println(sizeROM);
new7800size = sizeROM.toInt() + a7800lo;
if (new7800size > a7800hi) {
Serial.println(F("SIZE NOT SUPPORTED"));
Serial.println(F(""));
goto setrom;
}
}
Serial.print(F("ROM Size = "));
Serial.print(a7800[new7800size]);
Serial.println(F("K"));
#endif
EEPROM_writeAnything(8, new7800size);
a7800size = new7800size;
}
void checkStatus_7800() {
EEPROM_readAnything(7, a7800mapper);
EEPROM_readAnything(8, a7800size);
if (a7800mapper > 6) {
a7800mapper = 0; // default
EEPROM_writeAnything(7, a7800mapper);
}
if (a7800size > 5) {
a7800size = 0; // default 16KB
EEPROM_writeAnything(8, a7800size);
}
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F("ATARI 7800 READER"));
println_Msg(F("CURRENT SETTINGS"));
println_Msg(F(""));
print_Msg(F("MAPPER: "));
println_Msg(a7800mapper);
if (a7800mapper == 0)
println_Msg(F("STANDARD"));
else if (a7800mapper == 1)
println_Msg(F("SUPERGAME [78SG]"));
else if (a7800mapper == 2)
println_Msg(F("SUPERGAME [78S9]"));
else if (a7800mapper == 3)
println_Msg(F("F-18 HORNET [78AB]"));
else if (a7800mapper == 4)
println_Msg(F("DBLDRGN/RMPG [78AC]"));
else if (a7800mapper == 5)
println_Msg(F("BASEBALL/ETC [78S4]"));
else if (a7800mapper == 6)
println_Msg(F("KARATEKA(PAL)[78S4]"));
print_Msg(F("ROM SIZE: "));
print_Msg(a7800[a7800size]);
println_Msg(F("K"));
display_Update();
wait();
#else
Serial.print(F("MAPPER: "));
Serial.println(a7800mapper);
if (a7800mapper == 0)
Serial.println(F("Standard [7816/7832/7848]"));
else if (a7800mapper == 1)
Serial.println(F("SuperGame 128K [78SG]"));
else if (a7800mapper == 2)
Serial.println(F("SuperGame 144K [78S9] - Alien Brigade/Crossbow"));
else if (a7800mapper == 3)
Serial.println(F("F-18 Hornet 64K [78AB]"));
else if (a7800mapper == 4)
Serial.println(F("Double Dragon/Rampage [78AC]"));
else if (a7800mapper == 5)
Serial.println(F("Realsports Baseball/Tank Command/Tower Toppler/Waterski [78S4]"));
else if (a7800mapper == 6)
Serial.println(F("Karateka (PAL) [78S4 Variant]"));
Serial.print(F("ROM SIZE: "));
Serial.print(A7800[a7800size]);
Serial.println(F("K"));
Serial.println(F(""));
#endif
}
//******************************************
// SET MAPPER
//******************************************
void setMapper_7800() {
#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 = a7800mapcount - 1;
else
i--;
break;
}
display_Clear();
print_Msg(F("Mapper: "));
a7800index = i * 3;
a7800mapselect = pgm_read_byte(a7800mapsize + a7800index);
println_Msg(a7800mapselect);
if (a7800mapselect == 0)
println_Msg(F("STANDARD"));
else if (a7800mapselect == 1)
println_Msg(F("SUPERGAME 128K[78SG]"));
else if (a7800mapselect == 2)
println_Msg(F("SUPERGAME 144K[78S9]"));
else if (a7800mapselect == 3)
println_Msg(F("F-18 HORNET [78AB]"));
else if (a7800mapselect == 4)
println_Msg(F("DBLDRGN/RAMPG [78AC]"));
else if (a7800mapselect == 5)
println_Msg(F("BASEBALL/ETC [78S4]"));
else if (a7800mapselect == 6)
println_Msg(F("KARATEKA(PAL) [78S4]"));
display_Update();
if (i == (a7800mapcount - 1))
i = 0;
else
i++;
delay(250);
}
}
display_Clear();
print_Msg(F("Mapper: "));
a7800index = i * 3;
a7800mapselect = pgm_read_byte(a7800mapsize + a7800index);
println_Msg(a7800mapselect);
if (a7800mapselect == 0)
println_Msg(F("STANDARD"));
else if (a7800mapselect == 1)
println_Msg(F("SUPERGAME 128K[78SG]"));
else if (a7800mapselect == 2)
println_Msg(F("SUPERGAME 144K[78S9]"));
else if (a7800mapselect == 3)
println_Msg(F("F-18 HORNET [78AB]"));
else if (a7800mapselect == 4)
println_Msg(F("DBLDRGN/RAMPG [78AC]"));
else if (a7800mapselect == 5)
println_Msg(F("BASEBALL/ETC [78S4]"));
else if (a7800mapselect == 6)
println_Msg(F("KARATEKA(PAL) [78S4]"));
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 = a7800mapcount - 1;
else
i--;
display_Clear();
print_Msg(F("Mapper: "));
a7800index = i * 3;
a7800mapselect = pgm_read_byte(a7800mapsize + a7800index);
println_Msg(a7800mapselect);
if (a7800mapselect == 0)
println_Msg(F("STANDARD"));
else if (a7800mapselect == 1)
println_Msg(F("SUPERGAME 128K[78SG]"));
else if (a7800mapselect == 2)
println_Msg(F("SUPERGAME 144K[78S9]"));
else if (a7800mapselect == 3)
println_Msg(F("F-18 HORNET [78AB]"));
else if (a7800mapselect == 4)
println_Msg(F("DBLDRGN/RAMPG [78AC]"));
else if (a7800mapselect == 5)
println_Msg(F("BASEBALL/ETC [78S4]"));
else if (a7800mapselect == 6)
println_Msg(F("KARATEKA(PAL) [78S4]"));
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 == (a7800mapcount - 1))
i = 0;
else
i++;
display_Clear();
print_Msg(F("Mapper: "));
a7800index = i * 3;
a7800mapselect = pgm_read_byte(a7800mapsize + a7800index);
println_Msg(a7800mapselect);
if (a7800mapselect == 0)
println_Msg(F("STANDARD"));
else if (a7800mapselect == 1)
println_Msg(F("SUPERGAME 128K[78SG]"));
else if (a7800mapselect == 2)
println_Msg(F("SUPERGAME 144K[78S9]"));
else if (a7800mapselect == 3)
println_Msg(F("F-18 HORNET [78AB]"));
else if (a7800mapselect == 4)
println_Msg(F("DBLDRGN/RAMPG [78AC]"));
else if (a7800mapselect == 5)
println_Msg(F("BASEBALL/ETC [78S4]"));
else if (a7800mapselect == 6)
println_Msg(F("KARATEKA(PAL) [78S4]"));
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)
new7800mapper = a7800mapselect;
break;
}
}
display.setCursor(0, 56);
print_Msg(F("MAPPER "));
print_Msg(new7800mapper);
println_Msg(F(" SELECTED"));
display_Update();
delay(1000);
#else
setmapper:
String newmap;
Serial.println(F("SUPPORTED MAPPERS:"));
Serial.println(F("0 = Standard [7816/7832/7848]"));
Serial.println(F("1 = SuperGame 128K [78SG]"));
Serial.println(F("2 = SuperGame 144K [78S9] - Alien Brigade/Crossbow"));
Serial.println(F("3 = F-18 Hornet 64K [78AB]"));
Serial.println(F("4 = Double Dragon/Rampage [78AC]"));
Serial.println(F("5 = Realsports Baseball/Tank Command/Tower Toppler/Waterski [78S4]"));
Serial.println(F("6 = Karateka (PAL) [78S4 Variant]"));
Serial.print(F("Enter Mapper [0-6]: "));
while (Serial.available() == 0) {}
newmap = Serial.readStringUntil('\n');
Serial.println(newmap);
a7800index = newmap.toInt() * 3;
new7800mapper = pgm_read_byte(a7800mapsize + a7800index);
#endif
EEPROM_writeAnything(7, new7800mapper);
a7800mapper = new7800mapper;
a7800size = pgm_read_byte(a7800mapsize + a7800index + 1);
EEPROM_writeAnything(8, a7800size);
}
//******************************************
// CART SELECT CODE
//******************************************
FsFile a7800csvFile;
char a7800game[36]; // title
char a7800mm[3]; // mapper
char a7800rr[3]; // mapper
char a7800ll[4]; // linelength (previous line)
unsigned long a7800csvpos; // CSV File Position
char a7800cartCSV[] = "7800cart.txt"; // CSV List
char a7800csvEND[] = "EOF"; // CSV End Marker for scrolling
bool readLine_7800(FsFile& f, char* line, size_t maxLen) {
for (size_t n = 0; n < maxLen; n++) {
int c = f.read();
if (c < 0 && n == 0) return false; // EOF
if (c < 0 || c == '\n') {
line[n] = 0;
return true;
}
line[n] = c;
}
return false; // line too long
}
bool readVals_7800(char* a7800game, char* a7800mm, char* a7800rr, char* a7800ll) {
char line[44];
a7800csvpos = a7800csvFile.position();
if (!readLine_7800(a7800csvFile, line, sizeof(line))) {
return false; // EOF or too long
}
char* comma = strtok(line, ",");
int x = 0;
while (comma != NULL) {
if (x == 0)
strcpy(a7800game, comma);
else if (x == 1)
strcpy(a7800mm, comma);
else if (x == 2)
strcpy(a7800rr, comma);
else if (x == 3)
strcpy(a7800ll, comma);
comma = strtok(NULL, ",");
x += 1;
}
return true;
}
bool getCartListInfo_7800() {
bool buttonreleased = 0;
bool cartselected = 0;
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F(" HOLD TO FAST CYCLE"));
display_Update();
#else
Serial.println(F("HOLD BUTTON TO FAST CYCLE"));
#endif
delay(2000);
#if defined(enable_OLED)
buttonVal1 = (PIND & (1 << 7)); // PD7
#elif defined(enable_LCD)
boolean buttonVal1 = (PING & (1 << 2)); //PG2
#endif
if (buttonVal1 == LOW) { // Button Held - Fast Cycle
while (1) { // Scroll Game List
while (readVals_7800(a7800game, a7800mm, a7800rr, a7800ll)) {
if (strcmp(a7800csvEND, a7800game) == 0) {
a7800csvFile.seek(0); // Restart
} else {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F("CART TITLE:"));
println_Msg(F(""));
println_Msg(a7800game);
display_Update();
#else
Serial.print(F("CART TITLE:"));
Serial.println(a7800game);
#endif
#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
buttonreleased = 1;
break;
}
if (buttonreleased) {
buttonreleased = 0; // Reset Flag
break;
}
}
}
#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
break;
}
}
#if (defined(enable_OLED) || defined(enable_LCD))
display.setCursor(0, 56);
println_Msg(F("FAST CYCLE OFF"));
display_Update();
#else
Serial.println(F(""));
Serial.println(F("FAST CYCLE OFF"));
Serial.println(F("PRESS BUTTON TO STEP FORWARD"));
Serial.println(F("DOUBLE CLICK TO STEP BACK"));
Serial.println(F("HOLD TO SELECT"));
Serial.println(F(""));
#endif
while (readVals_7800(a7800game, a7800mm, a7800rr, a7800ll)) {
if (strcmp(a7800csvEND, a7800game) == 0) {
a7800csvFile.seek(0); // Restart
} else {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F("CART TITLE:"));
println_Msg(F(""));
println_Msg(a7800game);
display.setCursor(0, 48);
#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();
#else
Serial.print(F("CART TITLE:"));
Serial.println(a7800game);
#endif
while (1) { // Single Step
int b = checkButton();
if (b == 1) { // Continue (press)
break;
}
if (b == 2) { // Reset to Start of List (doubleclick)
byte prevline = strtol(a7800ll, NULL, 10);
a7800csvpos -= prevline;
a7800csvFile.seek(a7800csvpos);
break;
}
if (b == 3) { // Long Press - Select Cart (hold)
new7800mapper = strtol(a7800mm, NULL, 10);
new7800size = strtol(a7800rr, NULL, 10);
EEPROM_writeAnything(7, new7800mapper);
EEPROM_writeAnything(8, new7800size);
cartselected = 1; // SELECTION MADE
#if (defined(enable_OLED) || defined(enable_LCD))
println_Msg(F("SELECTION MADE"));
display_Update();
#else
Serial.println(F("SELECTION MADE"));
#endif
break;
}
}
if (cartselected) {
cartselected = 0; // Reset Flag
return true;
}
}
}
#if (defined(enable_OLED) || defined(enable_LCD))
println_Msg(F(""));
println_Msg(F("END OF FILE"));
display_Update();
#else
Serial.println(F("END OF FILE"));
#endif
return false;
}
void checkCSV_7800() {
if (getCartListInfo_7800()) {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F("CART SELECTED"));
println_Msg(F(""));
println_Msg(a7800game);
display_Update();
// Display Settings
display.setCursor(0, 56);
print_Msg(F("CODE: M"));
print_Msg(new7800mapper);
print_Msg(F("/R"));
println_Msg(new7800size);
display_Update();
#else
Serial.println(F(""));
Serial.println(F("CART SELECTED"));
Serial.println(a7800game);
// Display Settings
Serial.print(F("CODE: M"));
Serial.print(new7800mapper);
Serial.print(F("/R"));
Serial.println(new7800size);
Serial.println(F(""));
#endif
} else {
#if (defined(enable_OLED) || defined(enable_LCD))
display.setCursor(0, 56);
println_Msg(F("NO SELECTION"));
display_Update();
#else
Serial.println(F("NO SELECTION"));
#endif
}
}
void checkSize_7800() {
EEPROM_readAnything(7, a7800mapper);
for (int i = 0; i < a7800mapcount; i++) {
a7800index = i * 3;
if (a7800mapper == pgm_read_byte(a7800mapsize + a7800index)) {
a7800size = pgm_read_byte(a7800mapsize + a7800index + 1);
EEPROM_writeAnything(8, a7800size);
break;
}
}
}
void setCart_7800() {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(a7800cartCSV);
display_Update();
#endif
sd.chdir();
sprintf(folder, "7800/CSV");
sd.chdir(folder); // Switch Folder
a7800csvFile = sd.open(a7800cartCSV, O_READ);
if (!a7800csvFile) {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F("CSV FILE NOT FOUND!"));
display_Update();
#else
Serial.println(F("CSV FILE NOT FOUND!"));
#endif
while (1) {
if (checkButton() != 0)
setup_7800();
}
}
checkCSV_7800();
a7800csvFile.close();
}
#endif
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