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cartreader/Cart_Reader/INTV.ino
Ancyker 2cf7f5dbe7 Cleanup voltage requests 
The `setVoltage()` function should be called even when `ENABLE_VSELECT` is disabled because `ENABLE_3V3FIX` also uses it. There is no resource cost to do this as when both options are disabled the compiler will optimize this function out. This just "future proofs" the code so if that function ever does more it doesn't need updated everywhere. This applies to `setup_FlashVoltage()` as well.

The changes to OSCR.cpp are just for code formatting and additional comments to clarify this.
2023-06-26 15:25:54 -04:00

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//******************************************
// INTELLIVISION MODULE
//******************************************
#ifdef enable_INTV
// Mattel Intellivision
// Cartridge Pinout
// 44P 2.54mm pitch connector
//
// TOP SIDE BOTTOM SIDE
// (EVEN) (ODD)
// +-------+
// GND -| 2 1 |- GND
// CBLNK -| 4 3 |- /MSYNC
// EXT AUD -| 6 5 |- DB7
// EXT VID -| 8 7 |- DB8
// MCLK -| 10 9 |- DB6
// RESET -| 12 11 |- DB9
// SR1 -| 14 13 |- DB5
// VOICE -| 16 15 |- DB10
// VOICE -| 18 17 |- DB4
// GND -| 20 19 |- DB11
// GND -| 22 21 |- DB3
// GND -| 24 23 |- DB12
// GND -| 26 25 |- DB13
// GND -| 28 27 |- DB2
// /BUSAK -| 30 29 |- DB14
// BC1 -| 32 31 |- DB1
// BC2 -| 34 33 |- DB0
// BDIR -| 36 35 |- DB15
// BDIR -| 38 37 |- BDIR
// BC2 -| 40 39 |- BC2
// BC1 -| 42 41 |- BC1
// GND -| 44 43 |- VCC(+5V)
// +-------+
// CONTROL PINS:
// /MSYNC(PH3)- PIN 3 [ROM PIN 14]
// BC1(PH4) - PIN 41 [ROM PIN 28]
// BC2(PH5) - PIN 39 [ROM PIN 27]
// BDIR(PH6) - PIN 37 [ROM PIN 26]
// NOTE: BDIR/BC1/BC2 ONLY CONNECTED TO BOTTOM (ODD) PINS
// NOT CONNECTED:
// RESET(PH0) - N/C - GND IN CART
// MCLK(PH1) - N/C - GND IN CART
// BUS PROTOCOL COMMANDS - BDIR/BC1/BC2
// NO ACTION (NACT): 0/0/0
// ADDR TO REG (ADAR): 0/1/0
// INT ADDR TO BUS (IAB): 0/0/1
// DATA TO BUS (DTB): 0/1/1
// BUS TO ADDR (BAR): 1/0/0
// DATA WRITE (DW): 1/1/0
// DATA WRITE STROBE (DWS): 1/0/1
// INTERRUPT ACK (INTAK): 1/1/1
// Cart Configurations
// Format = {mapper,romlo,romhi,ramsize}
static const byte PROGMEM intvmapsize[] = {
0, 0, 2, 0, // default mattel up to 32K (8K/16K/24K/32K)
1, 1, 3, 0, // demo cart 16K, championship tennis 32K, wsml baseball 48K
2, 1, 3, 0, // up to 48K (16K/32K/48K)
3, 4, 4, 0, // tower of doom 48K
4, 0, 1, 1, // uscf chess 16K + RAM 1K
5, 2, 3, 0, // congo bongo/defender/pac-man 24K, dig dug 32K
6, 1, 1, 0, // centipede 16K
7, 1, 1, 0, // imagic carts 16K
8, 1, 1, 0, // mte-201 test cart 16K
9, 3, 3, 2, // triple challenge 32K + RAM 2K
};
byte intvmapcount = 10; // (sizeof(mapsize)/sizeof(mapsize[0])) / 4;
boolean intvmapfound = false;
byte intvmapselect;
int intvindex;
const byte INTV[] PROGMEM = { 8, 16, 24, 32, 48 };
byte intvlo = 0; // Lowest Entry
byte intvhi = 4; // Highest Entry
byte intvmapper;
byte newintvmapper;
byte intvsize;
byte newintvsize;
// EEPROM MAPPING
// 07 MAPPER
// 08 ROM SIZE
//******************************************
// Menu
//******************************************
// Base Menu
static const char intvMenuItem1[] PROGMEM = "Select Cart";
static const char intvMenuItem2[] PROGMEM = "Read ROM";
static const char intvMenuItem3[] PROGMEM = "Set Mapper + Size";
//static const char intvMenuItem4[] PROGMEM = "Reset"; (stored in common strings array)
static const char* const menuOptionsINTV[] PROGMEM = { intvMenuItem1, intvMenuItem2, intvMenuItem3, string_reset2 };
void setup_INTV() {
// Request 5V
setVoltage(VOLTS_SET_5V);
// Set Address Pins to Output (UNUSED)
//A0-A7
DDRF = 0xFF;
//A8-A15
DDRK = 0xFF;
//A16-A23
DDRL = 0xFF;
// Set Control Pins to Output
// ---(PH0) ---(PH1) /MSYNC(PH3) BC1(PH4) BC2(PH5) BDIR(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 (DB0-DB15) to Input
DDRC = 0x00;
DDRA = 0x00;
// Setting Control Pins to HIGH
// ---(PH0) ---(PH1) /MSYNC(PH3) BC1(PH4) BC2(PH5) BDIR(PH6)
PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
// Set Unused Pins HIGH
PORTF = 0xFF; // A0-A7
PORTK = 0xFF; // A8-A15
PORTL = 0xFF; // A16-A23
PORTJ |= (1 << 0); // TIME(PJ0)
checkStatus_INTV();
strcpy(romName, "INTV");
mode = mode_INTV;
}
void intvMenu() {
convertPgm(menuOptionsINTV, 4);
uint8_t mainMenu = question_box(F("INTELLIVISION MENU"), menuOptions, 4, 0);
switch (mainMenu) {
case 0:
// Select Cart
setCart_INTV();
setup_INTV();
break;
case 1:
// Read ROM
sd.chdir("/");
readROM_INTV();
sd.chdir("/");
break;
case 2:
// Set Mapper
setMapper_INTV();
checkMapperSize_INTV();
setROMSize_INTV();
break;
case 3:
// reset
resetArduino();
break;
}
}
//******************************************
// INTELLIVISION BUS PROTOCOL COMMANDS
//******************************************
// CONTROL PINS - BDIR/BC1/BC2
// NO ACTION (NACT): 0/0/0
// ADDR TO REG (ADAR): 0/1/0 [NOTE: ORDER BDIR/BC1/BC2]
// DATA TO BUS (DTB): 0/1/1
// BUS TO ADDR (BAR): 1/0/0
// DATA WRITE (DW): 1/1/0 [NOTE: ORDER BDIR/BC1/BC2]
// DATA WRITE STROBE (DWS): 1/0/1 [NOTE: ORDER BDIR/BC1/BC2]
// IMMEDIATE MODE DATA READ SEQUENCE: BAR-NACT-DTB-NACT
// IMMEDIATE MODE DATA WRITE SEQUENCE: BAR-NACT-DW-DWS-NACT
// DIRECT ADDRESSING MODE READ SEQUENCE: BAR-NACT-ADAR-NACT-DTB-NACT
// NO ACTION (NACT) - 0/0/0
void NACT_INT() {
// Switch BC1(PH4) + BC2(PH5) + BDIR(PH6) to LOW
PORTH &= ~(1 << 4) & ~(1 << 5) & ~(1 << 6);
// DB0..DB15 INPUT
DDRC = 0x00;
DDRA = 0x00;
}
// SET ADDRESS - BUS TO ADDR (BAR) - 1/0/0
void BAR_INT() {
// Switch BDIR(PH6) to HIGH
PORTH |= (1 << 6);
// Switch BC1(PH4) + BC2(PH5) to LOW
PORTH &= ~(1 << 4) & ~(1 << 5);
// Address OUT
DDRC = 0xFF;
DDRA = 0xFF;
}
// READ DATA - DATA TO BUS (DTB) - 0/1/1
void DTB_INT() {
// Switch BDIR(PH6) to LOW
PORTH &= ~(1 << 6);
// Switch BC1(PH4) + BC2(PH5) to HIGH
PORTH |= (1 << 4) | (1 << 5);
// Data IN
DDRC = 0x00;
DDRA = 0x00;
}
// ADDRESS DATA TO ADDRESS REGISTER (ADAR) - 0/1/0
void ADAR_INT() {
// Switch BC2(PH5) + BDIR(PH6) to LOW
PORTH &= ~(1 << 5) & ~(1 << 6);
// Switch BC1(PH4) to HIGH
PORTH |= (1 << 4);
}
// DATA WRITE PAIRED COMMAND - DW + DWS
// DATA SHOULD BE STABLE ACROSS BOTH
// DATA WRITE (DW) - 1/1/0
void DW_INT() {
// Switch BC1(PH4) + BDIR(PH6) to HIGH
PORTH |= (1 << 4) | (1 << 6);
// Switch BC2(PH5) to LOW
PORTH &= ~(1 << 5);
}
// DATA WRITE STROBE (DWS) - 1/0/1
void DWS_INT() {
// Switch BC2(PH5) + BDIR(PH6) to HIGH
PORTH |= (1 << 5) | (1 << 6);
// Switch BC1(PH4) to LOW
PORTH &= ~(1 << 4);
}
//******************************************
// READ CODE
//******************************************
uint16_t readData_INTV(uint32_t addr) {
PORTC = addr & 0xFF;
PORTA = (addr >> 8) & 0xFF;
BAR_INT();
// Wait for bus
// 5 x 62.5ns = 312.5ns
NOP;
NOP;
NOP;
NOP;
NOP;
NACT_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
DTB_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
uint16_t ret = (((PINA & 0xFF) << 8) | (PINC & 0xFF));
NACT_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
return ret;
}
// MAPPER ROM ADDRESSES
// 0: 0x50-0x70,0xD0-0xE0,0xF0-0x100, // default mattel up to 32K (8K/16K/24K/32K)
// 1: 0x50-0x70,0xD0-0x100, // demo cart 16K, championship tennis 32K, wsml baseball 48K
// 2: 0x50-0x70,0x90-0xC0,0xD0-0xE0, // up to 48K (16K/32K/48K)
// 3: 0x50-0x70,0x90-0xB0,0xD0-0xE0,0xF0-0x100, // tower of doom 48K
// 4: 0x50-0x70, // uscf chess 16K + RAM 1K
// 5: 0x50-0x80,0x90-0xC0, // congo bongo/defender/pac-man 24K, dig dug 32K
// 6: 0x60-0x80, // centipede 16K
// 7: 0x48-0x68, // imagic carts 16K
// 8: 0x50-0x60,0x70-0x80, // mte-201 test cart 16K
// 9: 0x50-0x70,0x90-0xB0,[0xC0-0xC8,0xD0-0xD8] // triple challenge 32K + RAM 2K [0xC0 + 0xD0 segments are not needed]
void readSegment_INTV(uint32_t startaddr, uint32_t endaddr) {
for (uint32_t addr = startaddr; addr < endaddr; addr += 256) {
for (uint16_t w = 0; w < 256; w++) {
uint16_t temp = readData_INTV(addr + w);
sdBuffer[w * 2] = (temp >> 8) & 0xFF;
sdBuffer[(w * 2) + 1] = temp & 0xFF;
}
myFile.write(sdBuffer, 512);
}
}
// MODIFIED READ ROUTINE FOR ALL 10 MAPPERS
void readROM_INTV() {
strcpy(fileName, romName);
strcat(fileName, ".int");
// create a new folder for storing rom file
EEPROM_readAnything(0, foldern);
sprintf(folder, "INTV/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(create_file_STR);
// write new folder number back to EEPROM
foldern++;
EEPROM_writeAnything(0, foldern);
switch (intvmapper) {
case 0: //default mattel up to 32K (8K/16K/24K/32K)
readSegment_INTV(0x5000, 0x6000); // 8K
if (intvsize > 0) {
readSegment_INTV(0x6000, 0x7000); // +8K = 16K
if (intvsize > 1) {
readSegment_INTV(0xD000, 0xE000); // +8K = 24K
if (intvsize > 2)
readSegment_INTV(0xF000, 0x10000); // +8K = 32K
}
}
break;
case 1: // demo cart/championship tennis/wsml baseball
readSegment_INTV(0x5000, 0x7000); // 16K Demo Cart
if (intvsize > 1) {
readSegment_INTV(0xD000, 0xE000); // +8K = 24K [NONE]
if (intvsize > 2) {
readSegment_INTV(0xE000, 0xF000); // +8K = 32K Championship Tennis
if (intvsize > 3) {
readSegment_INTV(0xF000, 0x10000); // +8K = 40K WSML Baseball [MISSING 8K ECS BANK]
// ecs bank switch
ecsBank(0xFFFF, 0x1); // switch ecs page 1 to 0xF000
readSegment_INTV(0xF000, 0x10000); // + 8K = 48K WSML Baseball
ecsBank(0xFFFF, 0x0); // reset ecs page 0 to 0xF000
}
}
}
break;
case 2: // up to 48K (16K/32K/48K)
readSegment_INTV(0x5000, 0x7000); // 16K
if (intvsize > 1) {
readSegment_INTV(0x9000, 0xA000); // +8K = 24K [NONE]
if (intvsize > 2) {
readSegment_INTV(0xA000, 0xB000); // +8K = 32K
if (intvsize > 3) {
readSegment_INTV(0xB000, 0xC000); // +8K = 40K
readSegment_INTV(0xD000, 0xE000); // +8K = 48K
}
}
}
break;
case 3: // tower of doom 48K
readSegment_INTV(0x5000, 0x7000); // 16K
readSegment_INTV(0x9000, 0xB000); // +16K = 32K
readSegment_INTV(0xD000, 0xE000); // +8K = 40K
readSegment_INTV(0xF000, 0x10000); // +8K = 48K
break;
case 4: // chess 16K
PORTH &= ~(1 << 3); // /MSYNC to LOW
readSegment_INTV(0x5000, 0x6000); // 8K
PORTH |= (1 << 3); // /MSYNC to HIGH
readSegment_INTV(0x6000, 0x7000); // 8K
break;
case 5: // congo bongo/defender/pac-man/dig dug
readSegment_INTV(0x5000, 0x7000); // 16K
readSegment_INTV(0x7000, 0x8000); // +8K = 24K Congo Bongo/Defender/Pac-Man
if (intvsize > 2) {
readSegment_INTV(0x9000, 0xA000); // +8K = 32K Dig Dug
//readSegment_INTV(0xA000,0xC000); // +16K = 48K [UNUSED]
}
break;
case 6: // centipede 16K
readSegment_INTV(0x6000, 0x8000); // 16K
break;
case 7: // imagic carts 16K
readSegment_INTV(0x4800, 0x6800); // 16K
break;
case 8: //mte-201 test cart 16K
readSegment_INTV(0x5000, 0x6000); // 8K
readSegment_INTV(0x7000, 0x8000); // +8K = 16K
break;
case 9: // triple challenge 32K [KNOWN ROM 44K BAD!]
readSegment_INTV(0x5000, 0x7000); // 16K
readSegment_INTV(0x9000, 0xB000); // +16K = 32K
// 0xC000 + 0xD000 SEGMENTS ARE NOT NEEDED (PER INTVNUT POST)
// readSegment_INTV(0xC000,0xC800); // +4K = 36K
// readSegment_INTV(0xD000,0xE000); // +8K = 44K
break;
}
myFile.close();
// Compare CRC32 to database and rename ROM if found
compareCRC("intv.txt", 0, 1, 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();
}
// ECS BANKSWITCH FOR WSML BASEBALL
// write $xA5y to $xFFF
// x = rom location ($x000 - $xFFF)
// y = page (up to 16 - WSML Baseball only uses 0/1)
void ecsBank(uint32_t addr, uint8_t bank) {
uint16_t ecsdata = (addr & 0xF000) + 0x0A50 + bank; // $xA5y
// Data OUT
DDRA = 0xFF;
DDRC = 0xFF;
// Set Address
PORTA = (addr >> 8) & 0xFF;
PORTC = addr & 0xFF;
BAR_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
NACT_INT();
NOP;
// Data OUT
DDRA = 0xFF;
DDRC = 0xFF;
PORTA = (ecsdata >> 8) & 0xFF; // $xA
PORTC = ecsdata & 0xFF; // $5y
DW_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
DWS_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
NACT_INT();
NOP;
NOP;
NOP;
NOP;
NOP;
}
//******************************************
// MAPPER CODE
//******************************************
void setMapper_INTV() {
#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 = intvmapcount - 1;
else
i--;
break;
}
display_Clear();
print_Msg(F("Mapper: "));
intvindex = i * 4;
intvmapselect = pgm_read_byte(intvmapsize + intvindex);
println_Msg(intvmapselect);
display_Update();
if (i == (intvmapcount - 1))
i = 0;
else
i++;
delay(250);
}
}
display_Clear();
print_Msg(F("Mapper: "));
intvindex = i * 4;
intvmapselect = pgm_read_byte(intvmapsize + intvindex);
println_Msg(intvmapselect);
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 = intvmapcount - 1;
else
i--;
// Only update display after input because of slow LCD library
display_Clear();
print_Msg(F("Mapper: "));
intvindex = i * 4;
intvmapselect = pgm_read_byte(intvmapsize + intvindex);
println_Msg(intvmapselect);
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 == (intvmapcount - 1))
i = 0;
else
i++;
// Only update display after input because of slow LCD library
display_Clear();
print_Msg(F("Mapper: "));
intvindex = i * 4;
intvmapselect = pgm_read_byte(intvmapsize + intvindex);
println_Msg(intvmapselect);
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)
newintvmapper = intvmapselect;
break;
}
}
display.setCursor(0, 56);
print_Msg(F("MAPPER "));
print_Msg(newintvmapper);
println_Msg(F(" SELECTED"));
display_Update();
delay(1000);
#else
setmapper:
String newmap;
intvmapfound = false;
Serial.print(F("Enter Mapper [0-9]: "));
while (Serial.available() == 0) {}
newmap = Serial.readStringUntil('\n');
Serial.println(newmap);
newintvmapper = newmap.toInt();
for (int i = 0; i < intvmapcount; i++) {
intvindex = i * 4;
intvmapselect = pgm_read_byte(intvmapsize + intvindex);
if (newintvmapper == intvmapselect)
intvmapfound = true;
}
if (intvmapfound == false) {
Serial.println(F("MAPPER NOT SUPPORTED!"));
Serial.println(F(""));
newintvmapper = 0;
goto setmapper;
}
#endif
EEPROM_writeAnything(7, newintvmapper);
intvmapper = newintvmapper;
}
void checkMapperSize_INTV() {
for (int i = 0; i < intvmapcount; i++) {
intvindex = i * 4;
byte mapcheck = pgm_read_byte(intvmapsize + intvindex);
if (mapcheck == intvmapper) {
intvlo = pgm_read_byte(intvmapsize + intvindex + 1);
intvhi = pgm_read_byte(intvmapsize + intvindex + 2);
break;
}
}
}
void setROMSize_INTV() {
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
if (intvlo == intvhi)
newintvsize = intvlo;
else {
int b = 0;
int i = intvlo;
// Only update display after input because of slow LCD library
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(pgm_read_byte(&(INTV[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 == intvlo)
i = intvhi;
else
i--;
// Only update display after input because of slow LCD library
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(pgm_read_byte(&(INTV[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 == intvhi)
i = intvlo;
else
i++;
display_Clear();
print_Msg(F("ROM Size: "));
println_Msg(pgm_read_byte(&(INTV[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)
newintvsize = i;
break;
}
}
display.setCursor(0, 56); // Display selection at bottom
}
print_Msg(F("ROM SIZE "));
print_Msg(pgm_read_byte(&(INTV[newintvsize])));
println_Msg(F("K"));
display_Update();
delay(1000);
#else
if (intvlo == intvhi)
newintvsize = intvlo;
else {
setrom:
String sizeROM;
for (int i = 0; i < (intvhi - intvlo + 1); i++) {
Serial.print(F("Select ROM Size: "));
Serial.print(i);
Serial.print(F(" = "));
Serial.print(pgm_read_byte(&(INTV[i + intvlo])));
Serial.println(F("K"));
}
Serial.print(F("Enter ROM Size: "));
while (Serial.available() == 0) {}
sizeROM = Serial.readStringUntil('\n');
Serial.println(sizeROM);
newintvsize = sizeROM.toInt() + intvlo;
if (newintvsize > intvhi) {
Serial.println(F("SIZE NOT SUPPORTED"));
Serial.println(F(""));
goto setrom;
}
}
Serial.print(F("ROM Size = "));
Serial.print(pgm_read_byte(&(INTV[newintvsize])));
Serial.println(F("K"));
#endif
EEPROM_writeAnything(8, newintvsize);
intvsize = newintvsize;
}
void checkStatus_INTV() {
EEPROM_readAnything(7, intvmapper);
EEPROM_readAnything(8, intvsize);
if (intvmapper > 9) {
intvmapper = 0;
EEPROM_writeAnything(7, intvmapper);
}
if (intvsize > 4) {
intvsize = 0;
EEPROM_writeAnything(8, intvsize);
}
#if (defined(enable_OLED) || defined(enable_LCD))
display_Clear();
println_Msg(F("INTELLIVISION READER"));
println_Msg(F("CURRENT SETTINGS"));
println_Msg(F(""));
print_Msg(F("MAPPER: "));
println_Msg(intvmapper);
print_Msg(F("ROM SIZE: "));
print_Msg(pgm_read_byte(&(INTV[intvsize])));
println_Msg(F("K"));
display_Update();
wait();
#else
Serial.print(F("CURRENT MAPPER: "));
Serial.println(intvmapper);
Serial.print(F("CURRENT ROM SIZE: "));
Serial.print(pgm_read_byte(&(INTV[intvsize])));
Serial.println(F("K"));
Serial.println(F(""));
#endif
}
//******************************************
// CART SELECT CODE
//******************************************
void setCart_INTV() {
char gamename[100];
char tempStr2[2];
char crc_search[9];
//go to root
sd.chdir();
// Select starting letter
byte myLetter = starting_letter();
// Open database
if (myFile.open("intv.txt", O_READ)) {
// Skip ahead to selected starting letter
if ((myLetter > 0) && (myLetter <= 26)) {
while (myFile.available()) {
// Read current name
get_line(gamename, &myFile, 96);
// Compare selected letter with first letter of current name until match
while (gamename[0] != 64 + myLetter) {
skip_line(&myFile);
skip_line(&myFile);
get_line(gamename, &myFile, 96);
}
break;
}
// Rewind one line
rewind_line(myFile);
}
// Display database
while (myFile.available()) {
display_Clear();
// Read game name
get_line(gamename, &myFile, 96);
// 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.seekCur(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.seekCur(1);
// Read mapper
intvmapper = myFile.read() - 48;
// Skip over semicolon
myFile.seekCur(1);
// Read rom size
// Read the next ascii character and subtract 48 to convert to decimal
cartSize = myFile.read() - 48;
// Remove leading 0 for single digit cart sizes
if (cartSize != 0) {
cartSize = cartSize * 10 + myFile.read() - 48;
} else {
cartSize = myFile.read() - 48;
}
// Skip over semicolon
myFile.seekCur(1);
// Read SRAM size
byte sramSize __attribute__((unused)) = myFile.read() - 48;
// Skip rest of line
myFile.seekCur(2);
// Skip every 3rd line
skip_line(&myFile);
println_Msg(F("Select your cartridge"));
println_Msg(F(""));
println_Msg(gamename);
print_Msg(F("Size: "));
print_Msg(cartSize);
println_Msg(F("KB"));
print_Msg(F("Mapper: "));
println_Msg(intvmapper);
#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);
#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) {
rewind_line(myFile, 6);
break;
}
// Selection
else if (b == 3) {
//byte INTV[] = {8, 16, 24, 32, 48};
switch (cartSize) {
case 8:
intvsize = 0;
break;
case 16:
intvsize = 1;
break;
case 24:
intvsize = 2;
break;
case 32:
intvsize = 3;
break;
case 48:
intvsize = 4;
break;
default:
intvsize = 0;
break;
}
EEPROM_writeAnything(7, intvmapper);
EEPROM_writeAnything(8, intvsize);
myFile.close();
break;
}
}
}
} else {
print_FatalError(F("Database file not found"));
}
}
#endif
//******************************************
// End of File
//******************************************
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