mirror of
https://github.com/sanni/cartreader.git
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Add basic support for SG-1000
For now just for cartridges with no save or mapper chip and rom size up to 32KB.
This commit is contained in:
sanni
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4d50065f2d
commit
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@ -4,8 +4,8 @@
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This project represents a community-driven effort to provide
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an easy to build and easy to modify cartridge dumper.
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Date: 08.03.2022
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Version: 8.0
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Date: 21.03.2022
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Version: 8.1
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SD lib: https://github.com/greiman/SdFat
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OLED lib: https://github.com/adafruit/Adafruit_SSD1306
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@ -45,7 +45,7 @@
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**********************************************************************************/
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char ver[5] = "8.0";
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char ver[5] = "8.1";
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/******************************************
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Libraries
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@ -354,7 +354,7 @@ static const char modeItem4[] PROGMEM = "Game Boy";
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static const char modeItem5[] PROGMEM = "NES/Famicom";
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static const char modeItem6[] PROGMEM = "Flashrom Programmer";
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static const char modeItem7[] PROGMEM = "PC Engine/TG16";
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static const char modeItem8[] PROGMEM = "SMS/GG/Mark III";
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static const char modeItem8[] PROGMEM = "SMS/GG/MIII/SG-1000";
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static const char modeItem9[] PROGMEM = "WonderSwan";
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static const char modeItem10[] PROGMEM = "NeoGeo Pocket";
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static const char modeItem11[] PROGMEM = "About";
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@ -388,6 +388,9 @@ void mainMenu() {
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}
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}
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// Reset page number
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currPage = 1;
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// wait for user choice to come back from the question box menu
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switch (modeMenu)
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{
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@ -486,7 +489,7 @@ static const char* const modeOptions[] PROGMEM = {modeItem1, modeItem2, modeItem
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static const char addonsItem1[] PROGMEM = "NES/Famicom";
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static const char addonsItem2[] PROGMEM = "Flashrom Programmer";
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static const char addonsItem3[] PROGMEM = "PC Engine/TG16";
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static const char addonsItem4[] PROGMEM = "SMS/GG/Mark III";
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static const char addonsItem4[] PROGMEM = "SMS/GG/MIII/SG-1000";
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static const char addonsItem5[] PROGMEM = "WonderSwan";
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static const char addonsItem6[] PROGMEM = "NeoGeo Pocket";
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static const char addonsItem7[] PROGMEM = "Reset";
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@ -1,6 +1,6 @@
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//**********************************************
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// SEGA MASTER SYSTEM/SG-1000/GAME GEAR MODULE
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//**********************************************
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//********************************************************
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// SEGA MASTER SYSTEM/Mark III/SG-1000/GAME GEAR MODULE
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//********************************************************
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#include "options.h"
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#ifdef enable_MD
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@ -12,12 +12,19 @@
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/******************************************
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Menu
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*****************************************/
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// Adapter menu
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static const char SMSAdapterItem1[] PROGMEM = "SMS/Mark 3 raphnet";
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static const char SMSAdapterItem2[] PROGMEM = "SG-1000 raphnet";
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static const char SMSAdapterItem3[] PROGMEM = "SMS Retrode";
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static const char SMSAdapterItem4[] PROGMEM = "GG Retrode";
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static const char* const menuAdapterSMS[] PROGMEM = {SMSAdapterItem1, SMSAdapterItem2, SMSAdapterItem3, SMSAdapterItem4};
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// MD menu items
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static const char SMSMenuItem1[] PROGMEM = "Read Rom";
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static const char SMSMenuItem2[] PROGMEM = "Read from SRAM";
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static const char SMSMenuItem3[] PROGMEM = "Write to SRAM";
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static const char SMSMenuItem4[] PROGMEM = "Change Retrode Mode";
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static const char SMSMenuItem5[] PROGMEM = "Reset";
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static const char SMSMenuItem4[] PROGMEM = "Reset";
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static const char SMSMenuItem5[] PROGMEM = "Change Retrode Mode";
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static const char* const menuOptionsSMS[] PROGMEM = {SMSMenuItem1, SMSMenuItem2, SMSMenuItem3, SMSMenuItem4, SMSMenuItem5};
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// Rom Size menu
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@ -33,14 +40,23 @@ static const char* const romOptionsSMS[] PROGMEM = {SMSRomItem1, SMSRomItem2, SM
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// Set retrode_mode to true when using a retrode SMS/GG adapter
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static bool retrode_mode = false;
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static bool retrode_mode_sms = false; // true: SMS/Mark3 false: GG
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static bool raphnet_mode_sg1000 = false; // true: SG-1000 false: SMS/Mark3
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void _smsMenu() {
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// create menu with title and 2 options to choose from
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// create menu with title and n options to choose from
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unsigned char mainMenu;
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if (retrode_mode) {
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// Copy menuOptions out of progmem
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int noptions = sizeof(menuOptionsSMS) / sizeof(menuOptionsSMS[0]);
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convertPgm(menuOptionsSMS, noptions);
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mainMenu = question_box(retrode_mode ? (retrode_mode_sms ? F("Retrode:SMS") : F("Retrode:GG")) : F("SMS/GG Retrode:NO"), menuOptions, noptions, 0);
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}
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else {
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsSMS, (raphnet_mode_sg1000 ? 1 : 4));
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mainMenu = question_box((raphnet_mode_sg1000 ? F("SG-1000") : F("SMS/Mark III") ), menuOptions, (raphnet_mode_sg1000 ? 1 : 4), 0);
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}
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// wait for user choice to come back from the question box menu
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switch (mainMenu)
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@ -73,32 +89,70 @@ void _smsMenu() {
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break;
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case 3:
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if (!retrode_mode && !retrode_mode_sms) {
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// first state (default)
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retrode_mode = true; // Change to GG
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} else if (retrode_mode && !retrode_mode_sms) {
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// second state
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retrode_mode_sms = true; // Change to SMS
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} else {
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// third state, reset to the first state
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retrode_mode = false;
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retrode_mode_sms = false;
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}
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break;
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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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case 4:
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if (retrode_mode && !retrode_mode_sms) {
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// Change to SMS
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retrode_mode_sms = true;
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} else if (retrode_mode && retrode_mode_sms) {
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// Change to GG
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retrode_mode_sms = false;
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}
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break;
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}
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if (retrode_mode) {
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println_Msg(retrode_mode ? (retrode_mode_sms ? F("Retrode Mode SMS") : F("Retrode Mode GG")) : F("Retrode Mode Off"));
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println_Msg(F("Press Button..."));
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}
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else {
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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}
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display_Update();
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wait();
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}
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void smsMenu() {
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// create main menu with title and 4 options to choose from
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unsigned char SMSAdapterMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuAdapterSMS, 4);
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SMSAdapterMenu = question_box(F("Select System/Adapter"), menuOptions, 4, 0);
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// wait for user choice to come back from the question box menu
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switch (SMSAdapterMenu)
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{
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case 0:
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// raphnet SMS/Mark3
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retrode_mode = false;
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retrode_mode_sms = false;
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raphnet_mode_sg1000 = false;
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break;
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case 1:
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// raphnet SG-1000
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retrode_mode = false;
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retrode_mode_sms = false;
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raphnet_mode_sg1000 = true;
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break;
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case 2:
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// retrode SMS/Mark3
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retrode_mode = true;
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retrode_mode_sms = true;
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raphnet_mode_sg1000 = false;
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break;
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case 3:
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// retrode GG
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retrode_mode = true;
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retrode_mode_sms = false;
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raphnet_mode_sg1000 = false;
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break;
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}
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for (;;) _smsMenu();
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}
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@ -388,8 +442,8 @@ void getCartInfo_SMS() {
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// Set cartsize manually
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unsigned char SMSRomMenu;
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// Copy menuOptions out of progmem
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convertPgm(romOptionsSMS, 7);
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SMSRomMenu = question_box(F("Select ROM size"), menuOptions, 7, 0);
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convertPgm(romOptionsSMS, (raphnet_mode_sg1000 ? 4 : 7));
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SMSRomMenu = question_box(F("Select ROM size"), menuOptions, (raphnet_mode_sg1000 ? 4 : 7), 0);
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// wait for user choice to come back from the question box menu
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switch (SMSRomMenu)
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@ -491,10 +545,19 @@ void readROM_SMS() {
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if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
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print_Error(F("SD Error"), true);
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}
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word bankSize = 16 * 1024UL;
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if (raphnet_mode_sg1000) {
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// cart with no mapper
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bankSize = cartSize;
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}
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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 (!raphnet_mode_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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@ -502,7 +565,7 @@ void readROM_SMS() {
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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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sdBuffer[currByte] = readByte_SMS((raphnet_mode_sg1000 ? 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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