mirror of
https://github.com/sanni/cartreader.git
synced 2024-12-30 15:01:53 +01:00
b66b3e2fe1
Fix wrong file creation location when reading multiple ROMs in a row
759 lines
21 KiB
C++
759 lines
21 KiB
C++
//***********************************************************
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// SEGA MASTER SYSTEM / MARK III / GAME GEAR / SG-1000 MODULE
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//***********************************************************
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#ifdef ENABLE_SMS
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//******************************************
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// Menus
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//******************************************
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// Adapters menu
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static const char SMSAdapterItem1[] PROGMEM = "SMS/MarkIII raphnet";
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static const char SMSAdapterItem2[] PROGMEM = "SMS Retrode";
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static const char SMSAdapterItem3[] PROGMEM = "SMS Retron3in1";
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static const char SMSAdapterItem4[] PROGMEM = "GameGear Retrode";
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static const char SMSAdapterItem5[] PROGMEM = "GameGear Retron3in1";
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static const char SMSAdapterItem6[] PROGMEM = "SG-1000 raphnet";
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static const char* const SMSAdapterMenu[] PROGMEM = { SMSAdapterItem1, SMSAdapterItem2, SMSAdapterItem3, SMSAdapterItem4, SMSAdapterItem5, SMSAdapterItem6 };
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// Operations menu
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static const char SMSOperationMenuItem4[] PROGMEM = "Set ROM Size";
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static const char* const SMSOperationMenu[] PROGMEM = { FSTRING_READ_ROM, FSTRING_READ_SAVE, FSTRING_WRITE_SAVE, SMSOperationMenuItem4, FSTRING_RESET };
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// SG Operations menu
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static const char* const SGOperationsMenu[] PROGMEM = { FSTRING_READ_ROM, FSTRING_RESET };
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// Rom sizes menu
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static const char SMSRomSizeItem1[] PROGMEM = "8 KB";
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static const char SMSRomSizeItem2[] PROGMEM = "16 KB";
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static const char SMSRomSizeItem3[] PROGMEM = "24 KB";
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static const char SMSRomSizeItem4[] PROGMEM = "32 KB";
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static const char SMSRomSizeItem5[] PROGMEM = "40 KB"; //SG-1000 40k mapping not yet supported
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static const char SMSRomSizeItem6[] PROGMEM = "48 KB"; //SG-1000 40k mapping not yet supported
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static const char SMSRomSizeItem7[] PROGMEM = "64 KB";
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static const char SMSRomSizeItem8[] PROGMEM = "128 KB";
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static const char SMSRomSizeItem9[] PROGMEM = "256 KB";
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static const char SMSRomSizeItem10[] PROGMEM = "512 KB";
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static const char SMSRomSizeItem11[] PROGMEM = "1024 KB";
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static const char* const SG1RomSizeMenu[] PROGMEM = { SMSRomSizeItem1, SMSRomSizeItem2, SMSRomSizeItem3, SMSRomSizeItem4 }; // Rom sizes for SG-1000
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static const char* const SMSRomSizeMenu[] PROGMEM = { SMSRomSizeItem4, SMSRomSizeItem7, SMSRomSizeItem8, SMSRomSizeItem9, SMSRomSizeItem10, SMSRomSizeItem11 }; // Rom sizes for SMS and GG
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// Init systems
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static bool system_sms = false; // SMS or MarkIII
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static bool system_gg = false; // GameGear
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static bool system_sg1000 = false; // SG-1000
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// Init adapters
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static bool adapter_raphnet = false; // raphet adapater (SMS-to-MD or MIII-to-MD)
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static bool adapter_retrode = false; // Retrode adapter (SMS-to-MD or GG-to-MD)
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static bool adapter_retron = false; // Retron 3in1 adapter (SMS-to-MD or GG-to-MD)
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// Manual ROM Size Selection Flag
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bool manRomSizeSelected = false;
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//*********************************************************
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// Main menu with systems/adapters setups to choose from
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//*********************************************************
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void smsMenu() {
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unsigned char SMSSetup;
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convertPgm(SMSAdapterMenu, 6);
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SMSSetup = question_box(F("Select your setup"), menuOptions, 6, 0);
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switch (SMSSetup) {
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case 0:
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// SMS or MarkIII with raphnet adapter
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system_sms = true;
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adapter_raphnet = true;
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break;
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case 1:
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// SMS with Retrode adapter
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system_sms = true;
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adapter_retrode = true;
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break;
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case 2:
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// SMS with Retron 3in1 adapter
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system_sms = true;
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adapter_retron = true;
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break;
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case 3:
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// GameGear with Retrode adapter
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system_gg = true;
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adapter_retrode = true;
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break;
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case 4:
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// GameGear with Retron 3in1 adapter
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system_gg = true;
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adapter_retron = true;
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break;
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case 5:
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// SG-1000 with raphnet adapter
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system_sg1000 = true;
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adapter_raphnet = true;
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break;
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}
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for (;;) operationsMenu();
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}
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//****************************************************
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// Create custom menu depending on selected setup
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//****************************************************
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void operationsMenu() {
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unsigned char SMSOperation = '3';
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if (system_sg1000) {
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convertPgm(SGOperationsMenu, 2);
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SMSOperation = question_box(FS(SMSAdapterItem6), menuOptions, 2, 0);
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switch (SMSOperation) {
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case 0: // Read ROM
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mode = CORE_SMS;
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setup_SMS();
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readROM_SMS();
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break;
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default:
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case 1:
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// Reset
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resetArduino();
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break;
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}
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} else {
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convertPgm(SMSOperationMenu, 5);
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if (system_sms) {
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if (adapter_raphnet) {
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SMSOperation = question_box(FS(SMSAdapterItem1), menuOptions, 5, 0);
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} else if (adapter_retrode) {
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SMSOperation = question_box(FS(SMSAdapterItem2), menuOptions, 5, 0);
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} else if (adapter_retron) {
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SMSOperation = question_box(FS(SMSAdapterItem3), menuOptions, 5, 0);
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}
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} else if (system_gg) {
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if (adapter_retrode) {
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SMSOperation = question_box(FS(SMSAdapterItem4), menuOptions, 5, 0);
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} else if (adapter_retron) {
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SMSOperation = question_box(FS(SMSAdapterItem5), menuOptions, 5, 0);
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}
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}
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switch (SMSOperation) {
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case 0: // Read ROM
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mode = CORE_SMS;
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setup_SMS();
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readROM_SMS();
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break;
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case 1: // Read SRAM
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mode = CORE_SMS;
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setup_SMS();
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readSRAM_SMS();
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break;
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case 2: // Write SRAM
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mode = CORE_SMS;
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setup_SMS();
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writeSRAM_SMS();
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break;
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case 3: // Select ROM Size
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manual_selectRomSize();
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break;
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default:
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case 4:
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// Reset
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resetArduino();
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break;
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}
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}
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display_Update();
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wait();
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}
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//********************************
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// Setup I/O
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//********************************
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void setup_SMS() {
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// Request 5V
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setVoltage(VOLTS_SET_5V);
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// Set Address Pins to Output
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//A0-A7
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DDRF = 0xFF;
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//A8-A14
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DDRK = 0xFF;
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//A15
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DDRH |= (1 << 3);
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//For Retrode adapter
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if (adapter_retrode) {
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PORTH &= ~((1 << 0) | (1 << 3) | (1 << 5));
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PORTL &= ~(1 << 1);
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DDRH &= ~((1 << 0) | (1 << 5));
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DDRL &= ~((1 << 1));
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// Set Control Pins to Output OE(PH6)
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DDRH |= (1 << 6);
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// WR(PL5) and RD(PL6)
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DDRL |= (1 << 5) | (1 << 6);
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// Setting OE(PH6) HIGH
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PORTH |= (1 << 6);
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// Setting WR(PL5) and RD(PL6) HIGH
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PORTL |= (1 << 5) | (1 << 6);
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}
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// For Raphnet and Retron adapters
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else {
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// Set Control Pins to Output RST(PH0) WR(PH5) OE(PH6)
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DDRH |= (1 << 0) | (1 << 5) | (1 << 6);
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// CE(PL1)
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DDRL |= (1 << 1);
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// Setting RST(PH0) WR(PH5) OE(PH6) HIGH
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PORTH |= (1 << 0) | (1 << 5) | (1 << 6);
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// CE(PL1)
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PORTL |= (1 << 1);
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}
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if (!system_sg1000) {
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// SMS/GG ROM has 16KB banks which can be mapped to one of three slots via register writes
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// Register Slot Address space
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// $fffd 0 $0000-$3fff
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// $fffe 1 $4000-$7fff
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// $ffff 2 $8000-$bfff
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// Disable sram
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writeByte_SMS(0xFFFC, 0);
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// Map first 3 banks so we can read-out the header info
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writeByte_SMS(0xFFFD, 0);
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writeByte_SMS(0xFFFE, 1);
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writeByte_SMS(0xFFFF, 2);
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}
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delay(400);
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// Read and print cart info only if ROM size not manually selected
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if (manRomSizeSelected == false) {
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getCartInfo_SMS();
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}
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}
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//*****************************************
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// Low level functions
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//*****************************************
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void writeByte_SMS(word myAddress, byte myData) {
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if (adapter_retrode && system_gg) {
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// Set Data Pins (D8-D15) to Output
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DDRA = 0xFF;
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} else {
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// Set Data Pins (D0-D7) to Output
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DDRC = 0xFF;
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}
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// Set address
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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if (!adapter_retrode) {
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// A15/M0-7(PH3) and OE(PH6) are connected
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PORTH = (PORTH & 0b11110111) | ((myAddress >> 12) & 0b00001000);
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}
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// Output data
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if (adapter_retrode && system_gg) {
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PORTA = myData;
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} else {
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PORTC = myData;
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}
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// Arduino running at 16Mhz -> one nop = 62.5ns
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// Wait till output is stable
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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if (adapter_retrode) {
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// Switch WR(PL5) and OE/CE(PH6) to LOW
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PORTL &= ~(1 << 5);
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PORTH &= ~(1 << 6);
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} else {
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// Switch CE(PL1) and WR(PH5) to LOW
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PORTL &= ~(1 << 1);
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PORTH &= ~(1 << 5);
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}
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// Leave WR low for at least 60ns
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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if (adapter_retrode) {
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// Switch WR(PL5) and OE/CE(PH6) to HIGH
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PORTH |= (1 << 6);
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PORTL |= (1 << 5);
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} else {
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// Switch CE(PL1) and WR(PH5) to HIGH
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PORTH |= (1 << 5);
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PORTL |= (1 << 1);
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}
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// Leave WR high for at least 50ns
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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if (adapter_retrode && system_gg) {
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// Set Data Pins (D8-D15) to Input
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DDRA = 0x00;
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} else {
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// Set Data Pins (D0-D7) to Input
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DDRC = 0x00;
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}
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}
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byte readByte_SMS(word myAddress) {
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if (adapter_retrode && system_gg) {
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// Set Data Pins (D8-D15) to Input
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DDRA = 0x00;
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} else {
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// Set Data Pins (D0-D7) to Input
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DDRC = 0x00;
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}
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// Set Address
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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if (!adapter_retrode) {
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// A15/M0-7(PH3) and OE(PH6) are connected
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PORTH = (PORTH & 0b11110111) | ((myAddress >> 12) & 0b00001000);
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}
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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if (adapter_retrode) {
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// Switch RD(PL6) and OE(PH6) to LOW
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PORTL &= ~(1 << 6);
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PORTH &= ~(1 << 6);
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} else {
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// Switch CE(PL1) and OE(PH6) to LOW
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PORTL &= ~(1 << 1);
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PORTH &= ~(1 << 6);
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}
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Read
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byte tempByte = (adapter_retrode && system_gg) ? PINA : PINC;
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if (adapter_retrode) {
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// Switch RD(PL6) and OE(PH6) to HIGH
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PORTH |= (1 << 6);
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PORTL |= (1 << 6);
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} else {
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// Switch CE(PL1) and OE(PH6) to HIGH
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PORTH |= (1 << 6);
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PORTL |= (1 << 1);
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}
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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return tempByte;
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}
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byte readNibble(byte data, byte number) {
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return ((data >> (number * 4)) & 0xF);
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}
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//*****************************************
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// Cartridges functions
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//*****************************************
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void getCartInfo_SMS() {
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byte cartNib = readNibble(readByte_SMS(0x7FFF), 0);
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// Get rom size from header
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// Note: Common for this value to be smaller than the actual value.
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// Normally used for BIOS checksum calculations on export hardware (non JP).
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switch (cartNib) {
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case 0xa:
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cartSize = 8192; // 8 KiB
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break;
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case 0xb:
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cartSize = 16384; // 16 KiB
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break;
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case 0xc:
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cartSize = 32768; // 32 KiB
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break;
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case 0xd:
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cartSize = 49152; // 48 KiB
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break;
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case 0xe:
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cartSize = 65536; // 64 KiB
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break;
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case 0xf:
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cartSize = 131072; // 128 KiB
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break;
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case 0x0:
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cartSize = 262144; // 256 KiB
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break;
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case 0x1:
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case 0x2:
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cartSize = 524288; // 512 KiB
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break;
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case 0x3:
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// 0x3 is (only?) used in The Pro Yakyuu '91 (Game Gear)
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cartSize = 131072; // 128 KiB
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break;
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default:
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cartSize = 49152; // 48 KiB
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// LED Error
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rgbLed(blue_color);
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break;
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}
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// Get rom name (expecting "TMR SEGA" string)
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for (byte i = 0; i < 8; i++) {
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romName[i] = char(readByte_SMS(0x7FF0 + i));
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}
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romName[8] = '\0';
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// Attempt to detect cart size by checking if "TMR SEGA" is mirrored
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// Based on https://www.raphnet.net/electronique/sms_cartridge_programmer/index_en.php#6
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// Note: Logic does not work on US CloudMaster (256K) and Penquin Land (128K) SMS carts.
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// Both detect as 512 KB based on the logic below.
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if (strcmp(romName, "TMR SEGA") == 0) {
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byte bank = 1;
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char romNameBuf[9];
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while (bank < 64) { // Total number of possible banks: 1 MiB / 16 (KiB/Bank)
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bank++; // Increment the bank
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writeByte_SMS(0xfffe, bank); // Load bank into slot 1
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for (byte i = 0; i < 8; i++) {
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romNameBuf[i] = char(readByte_SMS(0x7FF0 + i));
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}
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romNameBuf[8] = '\0';
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// Debug info:
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// print_Msg(F("Bank: "));
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// println_Msg(bank);
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// print_Msg(F("Parsed ROM name: "));
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// println_Msg(romNameBuf);
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// println_Msg(FS(FSTRING_EMPTY));
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if (strcmp(romNameBuf, romName) == 0) {
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break;
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}
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}
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if (bank > 2) { // 32 KiB is the smallest SMS/GG ROM size
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cartSize = (bank - 1) * 16384UL;
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}
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// Debug info:
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// print_Msg(F("Calculated ROM Size: "));
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// println_Msg(cartSize);
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// Reset Bank Slot 1
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writeByte_SMS(0xFFFE, 1);
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// Display header info
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display_Clear();
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if (system_sms) {
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println_Msg(F("SMS Header:"));
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} else {
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println_Msg(F("GG Header:"));
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}
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} else { // romName != "TMR SEGA"
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// Fix for "Fantasy Zone (J) (V1.0)" that has not the normal header, but "COPYRIGHT SEGAPRG. BY T.ASAI".
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char headerFZ[29];
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if (strcmp(romName, "G. BY T.A") != 0) {
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for (byte i = 0; i < 28; i++) {
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headerFZ[i] = char(readByte_SMS(0x7FE0 + i));
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}
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headerFZ[28] = '\0';
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if (strcmp(headerFZ, "COPYRIGHT SEGAPRG. BY T.ASAI") == 0) {
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strcpy(romName, "TMR SEGA");
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cartSize = 131072; // 128 KiB
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}
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}
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manual_selectRomSize();
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// Display cart info
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display_Clear();
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println_Msg(F("SMS/GG header not found"));
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}
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println_Msg(FS(FSTRING_SPACE));
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print_Msg(FS(FSTRING_NAME));
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println_Msg(romName);
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print_Msg(cartSize / 1024);
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println_Msg(F("KB"));
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println_Msg(FS(FSTRING_SPACE));
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// Wait for user input
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#if (defined(ENABLE_LCD) || defined(ENABLE_OLED))
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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#endif
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// Turn off LED
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rgbLed(black_color);
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}
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void manual_selectRomSize() {
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// Set rom size manually
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unsigned char SMSRomSize;
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if (system_sg1000) {
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// Rom sizes for SG-1000
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convertPgm(SG1RomSizeMenu, 4);
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SMSRomSize = question_box(F("Select ROM size"), menuOptions, 4, 0);
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switch (SMSRomSize) {
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case 0:
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cartSize = 8192; // 8 KiB
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break;
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case 1:
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cartSize = 16384; // 16 KiB
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break;
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case 2:
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cartSize = 24576; // 24 KiB
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break;
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case 3:
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cartSize = 32768; // 32 KiB
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break;
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//case 4:
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// cartSize = 40960; // 40KB
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// break;
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//case 5:
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// cartSize = 49152; // 48KB
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// break;
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}
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} else {
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// Rom sizes for SMS and GG
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convertPgm(SMSRomSizeMenu, 6);
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SMSRomSize = question_box(F("Select ROM size"), menuOptions, 6, 0);
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switch (SMSRomSize) {
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case 0:
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cartSize = 32768; // 32 KiB
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break;
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case 1:
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cartSize = 65536; // 64 KiB
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break;
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case 2:
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cartSize = 131072; // 128 KiB
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break;
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case 3:
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cartSize = 262144; // 256 KiB
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break;
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case 4:
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cartSize = 524288; // 512 KiB
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break;
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case 5:
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cartSize = 1048576; // 1 MiB
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break;
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}
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}
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strcpy(romName, "UNKNOWN"); // Use default UNKNOWN rom name upon manual selection
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manRomSizeSelected = true; // This ensures manually selected value is used upon read from the menu
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// Display info
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display_Clear();
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print_Msg(F("Selected Size: "));
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print_Msg(cartSize / 1024);
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println_Msg(F("KB"));
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print_STR(press_button_STR, 1);
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}
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//******************************************
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// Read ROM and save it to the SD card
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//******************************************
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void readROM_SMS() {
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sd.chdir("/");
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// Get name, add extension depending on the system and convert to char array for sd lib
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if (system_sms) {
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createFolder("SMS", "ROM", romName, "sms");
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} else if (system_gg) {
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createFolder("GG", "ROM", romName, "gg");
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} else {
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createFolder("SG1000", "ROM", romName, "sg");
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}
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printAndIncrementFolder(true);
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print_Msg(F("ROM Size: "));
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print_Msg(cartSize / 1024);
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println_Msg(F("KB"));
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// Open file on sd card
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if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
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print_FatalError(sd_error_STR);
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}
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// Set default bank size to 16 KiB
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word bankSize = 16384;
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// For carts not using mappers (SG1000 or SMS/GG 32 KiB)
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if ((system_sg1000) || (cartSize == 32768)) {
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bankSize = cartSize;
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}
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// Initialize progress bar
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uint32_t processedProgressBar = 0;
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uint32_t totalProgressBar = (uint32_t)(cartSize);
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draw_progressbar(0, totalProgressBar);
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for (byte currBank = 0x0; currBank < (cartSize / bankSize); currBank++) {
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// Write current 16KB bank to slot 2 register 0xFFFF
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if (!system_sg1000) {
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writeByte_SMS(0xFFFF, currBank);
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}
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// Blink led
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blinkLED();
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// Read 16KB from slot 2 which starts at 0x8000
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for (word currBuffer = 0; currBuffer < bankSize; currBuffer += 512) {
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// Fill SD buffer
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for (int currByte = 0; currByte < 512; currByte++) {
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sdBuffer[currByte] = readByte_SMS(((system_sg1000) || (cartSize == 32768) ? 0 : 0x8000) + currBuffer + currByte);
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}
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// hexdump for debugging:
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// if (currBank == 0 && currBuffer == 0) {
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// for (word xi = 0; xi < 0x100; xi++) {
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// if (xi%16==0) {
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// print_Msg_PaddedHex16(xi);
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// print_Msg(FS(FSTRING_SPACE));
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// }
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// print_Msg_PaddedHexByte(sdBuffer[xi]);
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// if (xi>0&&((xi+1)%16)==0) {
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// println_Msg(FS(FSTRING_EMPTY));
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// } else {
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// print_Msg(FS(FSTRING_SPACE));
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// }
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// }
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// }
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myFile.write(sdBuffer, 512);
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}
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// Update progress bar
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processedProgressBar += bankSize;
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draw_progressbar(processedProgressBar, totalProgressBar);
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}
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// Close file
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myFile.close();
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// Compare dump checksum with database values
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if (system_sms) {
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compareCRC("sms.txt", 0, 1, 0);
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} else if (system_gg) {
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compareCRC("gg.txt", 0, 1, 0);
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} else {
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compareCRC("sg1000.txt", 0, 1, 0);
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}
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#ifdef ENABLE_GLOBAL_LOG
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save_log();
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#endif
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print_STR(press_button_STR, 1);
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}
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//******************************************
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// Read SRAM and save to the SD card
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///*****************************************
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void readSRAM_SMS() {
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// Get name, add extension and convert to char array for sd lib
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const char* system;
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if (system_gg) {
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system = "GG";
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} else {
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system = "SMS";
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}
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createFolderAndOpenFile(system, "SAVE", romName, "sav");
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// Write the whole 32 KiB
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// When there is only 8 KiB of SRAM, the contents should be duplicated
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word bankSize = 16384;
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for (byte currBank = 0x0; currBank < 2; currBank++) {
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writeByte_SMS(0xFFFC, 0x08 | (currBank << 2));
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// Blink led
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blinkLED();
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// Read 16 KiB from slot 2 which starts at 0x8000
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for (word currBuffer = 0; currBuffer < bankSize; currBuffer += 512) {
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// Fill SD buffer
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for (int currByte = 0; currByte < 512; currByte++) {
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sdBuffer[currByte] = readByte_SMS(0x8000 + currBuffer + currByte);
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}
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myFile.write(sdBuffer, 512);
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}
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}
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// Close file
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myFile.close();
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print_STR(press_button_STR, 1);
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display_Update();
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}
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//**********************************************
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// Read file from SD card and write it to SRAM
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//**********************************************
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void writeSRAM_SMS() {
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if (false) {
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print_Error(F("DISABLED"));
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} else {
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fileBrowser(FS(FSTRING_SELECT_FILE));
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sd.chdir();
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sprintf(filePath, "%s/%s", filePath, fileName);
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display_Clear();
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println_Msg(F("Restoring from "));
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println_Msg(filePath);
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display_Update();
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if (myFile.open(filePath, O_READ)) {
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// Get SRAM size from file, with a maximum of 32KB
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uint32_t sramSize = myFile.fileSize();
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if (sramSize > ((uint32_t)32 * (uint32_t)1024)) {
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sramSize = (uint32_t)32 * (uint32_t)1024;
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}
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print_Msg(F("sramSize: "));
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print_Msg(sramSize);
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println_Msg(FS(FSTRING_EMPTY));
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|
word bankSize = 16384;
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|
for (word address = 0x0; address < sramSize; address += 512) {
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byte currBank = address >= bankSize ? 1 : 0;
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word page_address = address - (currBank * bankSize);
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writeByte_SMS(0xFFFC, 0x08 | (currBank << 2));
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// Blink led
|
|
blinkLED();
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myFile.read(sdBuffer, 512);
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for (int x = 0; x < 512; x++) {
|
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writeByte_SMS(0x8000 + page_address + x, sdBuffer[x]);
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}
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}
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// Close file
|
|
myFile.close();
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print_STR(press_button_STR, 1);
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display_Update();
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} else {
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print_FatalError(sd_error_STR);
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}
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}
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sd.chdir(); // root
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filePath[0] = '\0'; // Reset filePath
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}
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#endif
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//******************************************
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// End of File
|
|
//******************************************
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