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Remove auto selecting NES mapper config

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sanni 2022-09-18 19:26:43 +02:00
parent 38bc8a59e5
commit 49fdb0131e
2 changed files with 232 additions and 103 deletions
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13
Cart_Reader/Cart_Reader.ino
View File

@ -4,8 +4,8 @@
This project represents a community-driven effort to provide
an easy to build and easy to modify cartridge dumper.
Date: 10.09.2022
Version: 9.7
Date: 18.09.2022
Version: 9.8
SD lib: https://github.com/greiman/SdFat
OLED lib: https://github.com/adafruit/Adafruit_SSD1306
@ -59,7 +59,7 @@
**********************************************************************************/
char ver[5] = "9.7";
char ver[5] = "9.8";
//******************************************
// !!! CHOOSE HARDWARE VERSION !!!
@ -862,14 +862,9 @@ void mainMenu() {
#ifdef no-intro
if (getMapping() == 0) {
selectMapping();
checkStatus_NES(0);
}
else {
checkStatus_NES(1);
}
#else
checkStatus_NES(0);
#endif
checkStatus_NES();
nesMenu();
break;
#endif

322
Cart_Reader/NES.ino
View File

@ -230,7 +230,7 @@ void nesMenu() {
setPRGSize();
setCHRSize();
setRAMSize();
checkStatus_NES(0);
checkStatus_NES();
break;
// Read Rom
@ -493,97 +493,233 @@ boolean getMapping() {
//if checksum search successful set mapper and end search
if (strcmp(crc_search, crcStr) == 0) {
// Close the file:
myFile.close();
// Convert "4E4553" to (0x4E, 0x45, 0x53)
byte iNES_BUF[2];
for (byte j = 0; j < 16; j++) {
sscanf(iNES_STR + j * 2, "%2X", iNES_BUF);
iNES_HEADER[j] = iNES_BUF[0];
}
// Convert iNES garbage to useful info (thx to fceux)
mapper = (iNES_HEADER[6] >> 4);
mapper |= (iNES_HEADER[7] & 0xF0);
mapper |= ((iNES_HEADER[8] & 0x0F) << 8);
// Check if it's a supported mapper
boolean validMapper = 0;
byte mapcount = (sizeof(mapsize) / sizeof(mapsize[0])) / 7;
for (byte currMaplist = 0; currMaplist < mapcount; currMaplist++) {
if (pgm_read_byte(mapsize + currMaplist * 7) == mapper)
validMapper = 1;
}
if (!validMapper) {
println_Msg(F("Mapper not supported"));
return 0;
break;
}
// Save Mapper
EEPROM_writeAnything(7, mapper);
// PRG size
if ((iNES_HEADER[9] & 0x0F) != 0x0F) {
// simple notation
prgsize = (iNES_HEADER[4] | ((iNES_HEADER[9] & 0x0F) << 8)); //*16
}
else {
// exponent-multiplier notation
prgsize = (((1 << (iNES_HEADER[4] >> 2)) * ((iNES_HEADER[4] & 0b11) * 2 + 1)) >> 14); //*16
}
if (prgsize != 0)
prgsize = (int(log(prgsize) / log(2)));
EEPROM_writeAnything(8, prgsize);
// CHR size
if ((iNES_HEADER[9] & 0xF0) != 0xF0) {
// simple notation
chrsize = (uppow2(iNES_HEADER[5] | ((iNES_HEADER[9] & 0xF0) << 4))) * 2; //*4
}
else {
chrsize = (((1 << (iNES_HEADER[5] >> 2)) * ((iNES_HEADER[5] & 0b11) * 2 + 1)) >> 13) * 2; //*4
}
if (chrsize != 0)
chrsize = (int(log(chrsize) / log(2)));
EEPROM_writeAnything(9, chrsize);
// RAM size
ramsize = ((iNES_HEADER[10] & 0xF0) ? (64 << ((iNES_HEADER[10] & 0xF0) >> 4)) : 0) / 4096; //*4
if (ramsize != 0)
ramsize = (int(log(ramsize) / log(2)));
EEPROM_writeAnything(10, ramsize);
// Get name
byte myLength = 0;
for (unsigned int i = 0; i < 20; i++) {
// Stop at first "(" to remove "(Country)"
if (char(gamename[i]) == 40) {
break;
}
if (((char(gamename[i]) >= 48 && char(gamename[i]) <= 57) || (char(gamename[i]) >= 65 && char(gamename[i]) <= 90) || (char(gamename[i]) >= 97 && char(gamename[i]) <= 122)) && (myLength < 15)) {
romName[myLength] = char(gamename[i]);
myLength++;
// Rewind to start of entry
for (byte count_newline = 0; count_newline < 4; 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);
// If name consists out of all japanese characters use CART as name
if (myLength == 0) {
romName[0] = 'C';
romName[1] = 'A';
romName[2] = 'R';
romName[3] = 'T';
// Display database
while (myFile.available()) {
display_Clear();
// Read game name
#if defined(enable_OLED)
get_line(gamename, &myFile, 42);
#else
get_line(gamename, &myFile, 96);
#endif
// 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 iNES header
get_line(iNES_STR, &myFile, 33);
// Skip every 3rd line
skip_line(&myFile);
// Convert "4E4553" to (0x4E, 0x45, 0x53)
byte iNES_BUF[2];
for (byte j = 0; j < 16; j++) {
sscanf(iNES_STR + j * 2, "%2X", iNES_BUF);
iNES_HEADER[j] = iNES_BUF[0];
}
// Convert iNES garbage to useful info (thx to fceux)
mapper = (iNES_HEADER[6] >> 4);
mapper |= (iNES_HEADER[7] & 0xF0);
mapper |= ((iNES_HEADER[8] & 0x0F) << 8);
// PRG size
if ((iNES_HEADER[9] & 0x0F) != 0x0F) {
// simple notation
prgsize = (iNES_HEADER[4] | ((iNES_HEADER[9] & 0x0F) << 8)); //*16
}
else {
// exponent-multiplier notation
prgsize = (((1 << (iNES_HEADER[4] >> 2)) * ((iNES_HEADER[4] & 0b11) * 2 + 1)) >> 14); //*16
}
if (prgsize != 0)
prgsize = (int(log(prgsize) / log(2)));
// CHR size
if ((iNES_HEADER[9] & 0xF0) != 0xF0) {
// simple notation
chrsize = (uppow2(iNES_HEADER[5] | ((iNES_HEADER[9] & 0xF0) << 4))) * 2; //*4
}
else {
chrsize = (((1 << (iNES_HEADER[5] >> 2)) * ((iNES_HEADER[5] & 0b11) * 2 + 1)) >> 13) * 2; //*4
}
if (chrsize != 0)
chrsize = (int(log(chrsize) / log(2)));
// RAM size
ramsize = ((iNES_HEADER[10] & 0xF0) ? (64 << ((iNES_HEADER[10] & 0xF0) >> 4)) : 0) / 4096; //*4
if (ramsize != 0)
ramsize = (int(log(ramsize) / log(2)));
prg = (int_pow(2, prgsize)) * 16;
if (chrsize == 0)
chr = 0; // 0K
else
chr = (int_pow(2, chrsize)) * 4;
if (ramsize == 0)
ram = 0; // 0K
else if (mapper == 82)
ram = 5; // 5K
else
ram = (int_pow(2, ramsize)) * 4;
// Mapper Variants
// Identify variant for use across multiple functions
if (mapper == 4) { // Check for MMC6/MMC3
checkMMC6();
if (mmc6)
ram = 1; // 1K
}
println_Msg(gamename);
print_Msg(F("MAPPER: "));
println_Msg(mapper);
print_Msg(F("PRG SIZE: "));
print_Msg(prg);
println_Msg(F("K"));
print_Msg(F("CHR SIZE: "));
print_Msg(chr);
println_Msg(F("K"));
print_Msg(F("RAM SIZE: "));
if (mapper == 0) {
print_Msg(ram / 4);
println_Msg(F("K"));
}
else if ((mapper == 16) || (mapper == 80) || (mapper == 159)) {
if (mapper == 16)
print_Msg(ram * 32);
else
print_Msg(ram * 16);
println_Msg(F("B"));
}
else if (mapper == 19) {
if (ramsize == 2)
println_Msg(F("128B"));
else {
print_Msg(ram);
println_Msg(F("K"));
}
}
else {
print_Msg(ram);
println_Msg(F("K"));
}
#if defined(enable_OLED)
println_Msg(F("Press left to Change"));
println_Msg(F("and right to Select"));
#elif defined(enable_LCD)
println_Msg(F("Rotate to Change"));
println_Msg(F("Press to Select"));
#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) {
// Get name
byte myLength = 0;
for (unsigned int i = 0; i < 20; i++) {
// Stop at first "(" to remove "(Country)"
if (char(gamename[i]) == 40) {
break;
}
if (((char(gamename[i]) >= 48 && char(gamename[i]) <= 57) || (char(gamename[i]) >= 65 && char(gamename[i]) <= 90) || (char(gamename[i]) >= 97 && char(gamename[i]) <= 122)) && (myLength < 15)) {
romName[myLength] = char(gamename[i]);
myLength++;
}
}
// If name consists out of all japanese characters use CART as name
if (myLength == 0) {
romName[0] = 'C';
romName[1] = 'A';
romName[2] = 'R';
romName[3] = 'T';
}
// Save Mapper
EEPROM_writeAnything(7, mapper);
EEPROM_writeAnything(8, prgsize);
EEPROM_writeAnything(9, chrsize);
EEPROM_writeAnything(10, ramsize);
myFile.close();
return 1;
break;
}
}
}
// Print name
display_Clear();
println_Msg(romName);
display_Update();
return 1;
break;
}
}
// File searched until end but nothing found
@ -2548,7 +2684,7 @@ void checkMMC6() { // Detect MMC6 Carts - read PRG 0x3E00A ("STARTROPICS")
mmc6 = true; // MMC6 Cart
}
void checkStatus_NES(boolean clrscn) {
void checkStatus_NES() {
EEPROM_readAnything(7, mapper);
EEPROM_readAnything(8, prgsize);
EEPROM_readAnything(9, chrsize);
@ -2575,12 +2711,10 @@ void checkStatus_NES(boolean clrscn) {
else if (mapper == 30) // Check for Flashable/Non-Flashable
NESmaker_ID(); // Flash ID
if (!clrscn) {
display_Clear();
println_Msg(F("NES CART READER"));
println_Msg(F(""));
println_Msg(F("CURRENT SETTINGS"));
}
display_Clear();
println_Msg(F("NES CART READER"));
println_Msg(F(""));
println_Msg(F("CURRENT SETTINGS"));
println_Msg(F(""));
print_Msg(F("MAPPER: "));
println_Msg(mapper);