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authorsanni <[email protected]>2024-07-08 19:25:29 +0200
committersanni <[email protected]>2024-07-08 19:25:29 +0200
commit72dfb04624907a9e7236d9bcdc78d21ac633c14a (patch)
tree9010a2e0c1ec8988e6f378493b83919ac48caca9 /Cart_Reader/VIC20.ino
parent08cb8213877ec9dd930b0c50ad9c28707b8d2676 (diff)
downloadcartreader-72dfb04624907a9e7236d9bcdc78d21ac633c14a.tar.gz
cartreader-72dfb04624907a9e7236d9bcdc78d21ac633c14a.zip
Add new modules (thx to skaman)
Diffstat (limited to 'Cart_Reader/VIC20.ino')
-rw-r--r--Cart_Reader/VIC20.ino576
1 files changed, 576 insertions, 0 deletions
diff --git a/Cart_Reader/VIC20.ino b/Cart_Reader/VIC20.ino
new file mode 100644
index 0000000..cdb4bbc
--- /dev/null
+++ b/Cart_Reader/VIC20.ino
@@ -0,0 +1,576 @@
+//******************************************
+// COMMODORE VIC-20 MODULE
+//******************************************
+#ifdef ENABLE_VIC20
+// Commodore VIC-20
+// Cartridge Pinout
+// 44P 3.96mm pitch connector
+//
+// FRONT BACK
+// SIDE SIDE
+// +-------+
+// GND -| 1 A |- GND
+// D0 -| 2 B |- A0
+// D1 -| 3 C |- A1
+// D2 -| 4 D |- A2
+// D3 -| 5 E |- A3
+// D4 -| 6 F |- A4
+// D5 -| 7 H |- A5
+// D6 -| 8 J |- A6
+// D7 -| 9 K |- A7
+// /BLK1 -| 10 L |- A8
+// /BLK2 -| 11 M |- A9
+// /BLK3 -| 12 N |- A10
+// /BLK5 -| 13 P |- A11
+// /RAM1 -| 14 R |- A12
+// /RAM2 -| 15 S |- A13
+// /RAM3 -| 16 T |- IO2
+// VR/W -| 17 U |- IO3
+// CR/W -| 18 V |- PHI2
+// IRQ -| 19 W |- /NMI
+// NC -| 20 X |- /RESET
+// +5V -| 21 Y |- NC
+// GND -| 22 Z |- GND
+// +-------+
+//
+// BACK
+// GND NC /RST /NMI PH2 I3 I2 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 GND
+// +-------------------------------------------------------------------------------+
+// | Z Y X W V U T S R P N M L K J H F E D C B A |
+// LEFT | | RIGHT
+// | 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 |
+// +-------------------------------------------------------------------------------+
+// GND +5V NC IRQ CRW VRW /R3 /R2 /R1 /B5 /B3 /B2 /B1 D7 D6 D5 D4 D3 D2 D1 D0 GND
+// FRONT
+
+// CONTROL PINS:
+// /BLK1(PH3) - SNES /CS - [$2000-$3FFF]
+// /BLK2(PH4) - SNES /IRQ - [$4000-$5FFF]
+// /BLK3(PH5) - SNES /WR - [$6000-$7FFF]
+// /BLK5(PH6) - SNES /RD - [$A000-$BFFF]
+
+//******************************************
+// VARIABLES
+//******************************************
+byte VIC20MAP[] = {
+0x20, // 0x2000
+0x24, // 0x2000/0x4000
+0x2A, // 0x2000/0xA000
+0x46, // 0x4000/0x6000 - Adventure Games
+0x60, // 0x6000
+0x6A, // 0x6000/0xA000 - Standard 16K
+0x70, // 0x7000
+0xA0, // 0xA000 - Standard 8K
+0xB0 // 0xB000
+};
+
+byte vic20mapcount = 9;
+byte vic20mapselect;
+byte vic20maplo = 0; // Lowest Entry
+byte vic20maphi = 8; // Highest Entry
+byte vic20map = 0;
+byte newvic20map;
+
+byte VIC20SIZE[] = {
+0x20, // 2K/0K 0x800
+0x40, // 4K/0K 0x1000
+0x80, // 8K/0K 0x2000
+0x44, // 4K/4K 0x1000/0x1000
+0x48, // 4K/8K 0x1000/0x2000
+0x84, // 8K/4K 0x2000/0x1000
+0x88 // 8K/8K 0x2000/0x2000
+};
+
+byte vic20lo = 0; // Lowest Entry
+byte vic20hi = 6; // Highest Entry
+byte vic20size;
+byte newvic20size;
+
+//byte VIC20[] = {2,4,8};
+//byte vic20lo = 0; // Lowest Entry
+//byte vic20hi = 2; // Highest Entry
+//byte vic20size;
+//byte newvic20size;
+
+// EEPROM MAPPING
+// 07 MAPPER
+// 08 ROM SIZE
+
+//******************************************
+// MENU
+//******************************************
+// Base Menu
+static const char* const menuOptionsVIC20[] PROGMEM = { FSTRING_SELECT_CART, FSTRING_READ_ROM, FSTRING_SET_SIZE, FSTRING_RESET };
+
+void vic20Menu()
+{
+ convertPgm(menuOptionsVIC20, 4);
+ uint8_t mainMenu = question_box(F("VIC-20 MENU"), menuOptions, 4, 0);
+
+ switch (mainMenu)
+ {
+ case 0:
+ // Select Cart
+ setCart_VIC20();
+ setup_VIC20();
+ break;
+
+ case 1:
+ // Read ROM
+ sd.chdir("/");
+ CreateROMFolder_VIC20();
+ readROM_VIC20();
+ FinishROMFolder_VIC20();
+ sd.chdir("/");
+ break;
+
+ case 2:
+ // Set ROM Map + Size
+ setROMMap_VIC20();
+ setROMSize_VIC20();
+ break;
+
+ case 3:
+ // reset
+ resetArduino();
+ break;
+ }
+}
+
+//******************************************
+// SETUP
+//******************************************
+
+void setup_VIC20()
+{
+ // Request 5V
+ setVoltage(VOLTS_SET_5V);
+
+ // Set Address Pins to Output
+ // VIC-20 uses A0-A13 [A14-A23 UNUSED]
+ //A0-A7
+ DDRF = 0xFF;
+ //A8-A15
+ DDRK = 0xFF;
+ //A16-A23
+ DDRL = 0xFF;
+
+ // Set Control Pins to Output
+ // /RST(PH0) ---(PH1) /BLK1(PH3) /BLK2(PH4) /BLK3(PH5) /BLK5(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
+ // /RST(PH0) ---(PH1) /BLK1(PH3) /BLK2(PH4) /BLK3(PH5) /BLK5(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_VIC20();
+ strcpy(romName, "VIC20");
+
+ mode = CORE_VIC20;
+}
+
+//******************************************
+// READ FUNCTIONS
+//******************************************
+
+uint8_t readData_VIC20(uint16_t addr)
+{
+ PORTF = addr & 0xFF; // A0-A7
+ PORTK = (addr >> 8) & 0xFF; // A8-A13
+ NOP;
+ NOP;
+ NOP;
+ NOP;
+ NOP;
+
+ uint8_t ret = PINC;
+
+ return ret;
+}
+
+void readSegment_VIC20(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_VIC20(addr + w);
+ sdBuffer[w] = temp;
+ }
+ myFile.write(sdBuffer, 512);
+ }
+}
+
+//******************************************
+// ROM FOLDER
+//******************************************
+
+void CreateROMFolder_VIC20()
+{
+ sd.chdir();
+ EEPROM_readAnything(0, foldern);
+ sprintf(folder, "VIC20/ROM/%d", foldern);
+ sd.mkdir(folder, true);
+ sd.chdir(folder);
+}
+
+void FinishROMFolder_VIC20()
+{
+ foldern += 1;
+ EEPROM_writeAnything(0, foldern); // FOLDER #
+ sd.chdir();
+}
+
+//******************************************
+// READ ROM
+//******************************************
+
+void readROM_VIC20()
+{
+ display_Clear();
+ print_Msg(F("Saving to "));
+ print_Msg(folder);
+ println_Msg(F("/..."));
+ display_Update();
+
+ byte rommap = 0;
+ byte romsize = 0;
+
+ // Split into Individual ROM Files
+ for (int x = 0; x < 2; x++) { // ROM0/ROM1
+ if (x == 1) {
+ if ((VIC20MAP[vic20map] & 0x0F) == 0)
+ break;
+ rommap = ((VIC20MAP[vic20map] & 0x0F) << 4);
+ romsize = VIC20SIZE[vic20size] & 0x0F;
+ }
+ else {
+ rommap = VIC20MAP[vic20map] & 0xF0;
+ romsize = ((VIC20SIZE[vic20size] & 0xF0) >> 4);
+ }
+ snprintf(fileName, sizeof(fileName), "%s.%x", romName, rommap);
+ // open file on sdcard
+ if (!myFile.open(fileName, O_RDWR | O_CREAT))
+ print_FatalError(F("Can't create file on SD"));
+
+ if (rommap == 0x20) { // BLK1
+ PORTH &= ~(1 << 3); // BLK1(PH3) LOW
+ readSegment_VIC20(0x2000,0x3000); // 4K
+ if (romsize == 8)
+ readSegment_VIC20(0x3000,0x4000); // +4K = 8K
+ PORTH |= (1 << 3); // BLK1(PH3) HIGH
+ }
+ else if (rommap == 0x40) { // BLK2
+ PORTH &= ~(1 << 4); // BLK2(PH4) LOW
+ readSegment_VIC20(0x4000,0x5000); // 4K
+ if (romsize == 8)
+ readSegment_VIC20(0x5000,0x6000); // +4K = 8K
+ PORTH |= (1 << 4); // BLK2(PH4) HIGH
+ }
+ else if (rommap == 0x60) { // BLK3
+ PORTH &= ~(1 << 5); // BLK3(PH5) LOW
+ readSegment_VIC20(0x6000,0x7000); // 4K
+ if (romsize == 8)
+ readSegment_VIC20(0x7000,0x8000); // +4K = 8K
+ PORTH |= (1 << 5); // BLK3(PH5) HIGH
+ }
+ else if (rommap == 0x70) { // BLK3 UPPER HALF
+ PORTH &= ~(1 << 5); // BLK3(PH5) LOW
+ readSegment_VIC20(0x7000,0x8000);
+ PORTH |= (1 << 5); // BLK3(PH5) HIGH
+ }
+ else if (rommap == 0xA0) { // BLK5
+ PORTH &= ~(1 << 6); // BLK5(PH6) LOW
+ readSegment_VIC20(0xA000,0xA800); // 2K
+ if (romsize > 2) {
+ readSegment_VIC20(0xA800,0xB000); // +2K = 4K
+ if (romsize > 4)
+ readSegment_VIC20(0xB000,0xC000); // +4K = 8K
+ }
+ PORTH |= (1 << 6); // BLK5(PH6) HIGH
+ }
+ else if (rommap == 0xB0) { // BLK5 UPPER HALF
+ PORTH &= ~(1 << 6); // BLK5(PH6) LOW
+ readSegment_VIC20(0xB000,0xB800); // 2K
+ if (romsize > 2)
+ readSegment_VIC20(0xB800,0xC000); // +2K = 4K
+ PORTH |= (1 << 6); // BLK5(PH6) HIGH
+ }
+ myFile.close();
+
+ print_Msg(F("ROM"));
+ print_Msg(x);
+ print_Msg(FS(FSTRING_SPACE));
+ printCRC(fileName, NULL, 0);
+ }
+ println_Msg(FS(FSTRING_EMPTY));
+ print_STR(press_button_STR, 1);
+ display_Update();
+ wait();
+}
+
+//******************************************
+// ROM SIZE
+//******************************************
+
+void setROMSize_VIC20()
+{
+#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
+ display_Clear();
+ if (vic20lo == vic20hi)
+ newvic20size = vic20lo;
+ else {
+ int b = 0;
+ int i = vic20lo;
+ while (1) {
+ display_Clear();
+ print_Msg(F("ROM0 Size: "));
+ println_Msg((VIC20SIZE[i] & 0xF0) >> 4);
+ print_Msg(F("ROM1 Size: "));
+ println_Msg(VIC20SIZE[i] & 0x0F);
+ println_Msg(FS(FSTRING_EMPTY));
+ println_Msg(F("Press to Change"));
+ println_Msg(F("Hold to Select"));
+ display_Update();
+ b = checkButton();
+ if (b == 2) { // Previous (doubleclick)
+ if (i == vic20lo)
+ i = vic20hi;
+ else
+ i--;
+ }
+ if (b == 1) { // Next (press)
+ if (i == vic20hi)
+ i = vic20lo;
+ else
+ i++;
+ }
+ if (b == 3) { // Long Press - Execute (hold)
+ newvic20size = i;
+ break;
+ }
+ }
+ display.setCursor(0, 48); // Display selection at bottom
+ }
+ print_Msg(F("ROM0 SIZE "));
+ print_Msg((VIC20SIZE[newvic20size] & 0xF0) >> 4);
+ println_Msg(F("KB"));
+ print_Msg(F("ROM1 SIZE "));
+ print_Msg(VIC20SIZE[newvic20size] & 0x0F);
+ println_Msg(F("KB"));
+ display_Update();
+ delay(1000);
+#else
+ if (vic20lo == vic20hi)
+ newvic20size = vic20lo;
+ else {
+setrom:
+ String sizeROM;
+ for (int i = 0; i < (vic20hi - vic20lo + 1); i++) {
+ Serial.print(F("Select ROM Size: "));
+ Serial.print(i);
+ Serial.print(F(" = "));
+ Serial.print((VIC20SIZE[i + vic20lo] & 0xF0) >> 4);
+ Serial.print(F("KB/"));
+ Serial.print(VIC20SIZE[i + vic20lo] & 0x0F);
+ Serial.println(F("KB"));
+ }
+ Serial.print(F("Enter ROM Size: "));
+ while (Serial.available() == 0) {}
+ sizeROM = Serial.readStringUntil('\n');
+ Serial.println(sizeROM);
+ newvic20size = sizeROM.toInt() + vic20lo;
+ if (newvic20size > vic20hi) {
+ Serial.println(F("SIZE NOT SUPPORTED"));
+ Serial.println(FS(FSTRING_EMPTY));
+ goto setrom;
+ }
+ }
+ Serial.print(F("ROM0 Size = "));
+ Serial.print((VIC20SIZE[newvic20size] & 0xF0) >> 4);
+ Serial.println(F("KB"));
+ Serial.print(F("ROM1 Size = "));
+ Serial.print(VIC20SIZE[newvic20size] & 0x0F);
+ Serial.println(F("KB"));
+#endif
+ EEPROM_writeAnything(8, newvic20size);
+ vic20size = newvic20size;
+}
+
+void checkStatus_VIC20()
+{
+ EEPROM_readAnything(7, vic20map);
+ EEPROM_readAnything(8, vic20size);
+ if (vic20map > 8) {
+ vic20map = 7; // default 0xA000
+ EEPROM_writeAnything(7, vic20map);
+ }
+ if (vic20size > vic20hi) {
+ vic20size = 2; // default 8K
+ EEPROM_writeAnything(8, vic20size);
+ }
+
+#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
+ display_Clear();
+ println_Msg(F("COMMODORE VIC-20"));
+ println_Msg(FS(FSTRING_CURRENT_SETTINGS));
+ println_Msg(FS(FSTRING_EMPTY));
+ print_Msg(F("ROM MAP: "));
+ println_Msg(VIC20MAP[vic20map], HEX);
+ print_Msg(F("ROM0 SIZE: "));
+ print_Msg((VIC20SIZE[vic20size] & 0xF0) >> 4);
+ println_Msg(F("KB"));
+ print_Msg(F("ROM1 SIZE: "));
+ print_Msg(VIC20SIZE[vic20size] & 0x0F);
+ println_Msg(F("KB"));
+ display_Update();
+ wait();
+#else
+ Serial.print(F("CURRENT ROM MAP: "));
+ Serial.println(VIC20MAP[vic20map]);
+ Serial.print(F("CURRENT ROM0 SIZE: "));
+ Serial.print((VIC20SIZE[vic20size] & 0xF0) >> 4);
+ Serial.println(F("KB"));
+ Serial.print(F("CURRENT ROM1 SIZE: "));
+ Serial.print(VIC20SIZE[vic20size] & 0x0F);
+ Serial.println(F("KB"));
+ Serial.println(FS(FSTRING_EMPTY));
+#endif
+}
+
+//******************************************
+// SET ROM MAP
+//******************************************
+
+void setROMMap_VIC20()
+{
+#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 /* ENABLE_OLED | ENABLE_LCD */
+
+ 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 /* ENABLE_OLED | ENABLE_LCD */
+ if (buttonVal1 == HIGH) { // Button Released
+ // Correct Overshoot
+ if (i == 0)
+ i = vic20mapcount - 1;
+ else
+ i--;
+ break;
+ }
+ display_Clear();
+ print_Msg(F("ROM Map: "));
+ vic20mapselect = VIC20MAP[i];
+ println_Msg(vic20mapselect, HEX);
+ if (i == (vic20mapcount - 1))
+ i = 0;
+ else
+ i++;
+ delay(250);
+ }
+ }
+ while (1) {
+ display_Clear();
+ print_Msg(F("ROM Map: "));
+ vic20mapselect = VIC20MAP[i];
+ println_Msg(vic20mapselect, HEX);
+ println_Msg(FS(FSTRING_EMPTY));
+ println_Msg(F("Press to Change"));
+ println_Msg(F("Hold to Select"));
+ display_Update();
+ b = checkButton();
+ if (b == 2) { // Previous ROM Map (doubleclick)
+ if (i == 0)
+ i = vic20mapcount - 1;
+ else
+ i--;
+ }
+ if (b == 1) { // Next ROM Map (press)
+ if (i == (vic20mapcount - 1))
+ i = 0;
+ else
+ i++;
+ }
+ if (b == 3) { // Long Press - Execute (hold)
+ newvic20map = i;
+ break;
+ }
+ }
+ display.setCursor(0, 56);
+ print_Msg(F("ROM MAP "));
+ print_Msg(vic20mapselect, HEX);
+ println_Msg(F(" SELECTED"));
+ display_Update();
+ delay(1000);
+#else
+ String newmap;
+ Serial.println(F("ROM MAP:"));
+ Serial.println(F("0 = 0x2000"));
+ Serial.println(F("1 = 0x2000/0x4000"));
+ Serial.println(F("2 = 0x2000/0xA000"));
+ Serial.println(F("3 = 0x4000/0x6000"));
+ Serial.println(F("4 = 0x6000"));
+ Serial.println(F("5 = 0x6000/0xA000"));
+ Serial.println(F("6 = 0x7000"));
+ Serial.println(F("7 = 0xA000"));
+ Serial.println(F("8 = 0xB000"));
+ Serial.print(F("Enter Mapper [0-8]: "));
+ while (Serial.available() == 0) {}
+ newmap = Serial.readStringUntil('\n');
+ Serial.println(newmap);
+ newvic20map = newmap.toInt();
+#endif
+ EEPROM_writeAnything(7, newvic20map);
+ vic20map = newvic20map;
+}
+
+//******************************************
+// CART SELECT CODE
+//******************************************
+
+void setCart_VIC20()
+{
+ //go to root
+ sd.chdir();
+
+ struct database_entry_mapper_size entry;
+
+ // Select starting letter
+ byte myLetter = starting_letter();
+
+ // Open database
+ if (myFile.open("vic20cart.txt", O_READ)) {
+ seek_first_letter_in_database(myFile, myLetter);
+
+ if(checkCartSelection(myFile, &readDataLineMapperSize, &entry)) {
+ EEPROM_writeAnything(7, entry.gameMapper);
+ EEPROM_writeAnything(8, entry.gameSize);
+ }
+ } else {
+ print_FatalError(FS(FSTRING_DATABASE_FILE_NOT_FOUND));
+ }
+}
+#endif \ No newline at end of file