BIOS loading

platforms/libretro/libretro.cpp

@@ -26,11 +26,11 @@
 #include "libretro.h"
 #include "../../src/gearlynx.h"
 
-// #ifdef _WIN32
-// static const char slash = '\\';
-// #else
-// static const char slash = '/';
-// #endif
+#ifdef _WIN32
+static const char slash = '\\';
+#else
+static const char slash = '/';
+#endif
 
 #define RETRO_DEVICE_LYNX_PAD    RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 0)
 
@@ -99,6 +99,12 @@ static int IsButtonPressed(int joypad_bits, int button)
     return (joypad_bits & (1 << button)) ? 1 : 0;
 }
 
+static void load_bootroms(void)
+{
+    char bios_path[4113];
+    sprintf(bios_path, "%s%lynxboot.img", retro_system_directory, slash);
+    core->GetMemory()->LoadBios(bios_path);
+}
 
 unsigned retro_api_version(void)
 {
@@ -183,6 +189,7 @@ void retro_reset(void)
     log_cb(RETRO_LOG_DEBUG, "Resetting...\n");
 
     check_variables();
+    load_bootroms();
     core->ResetROM(true);
 }
 
@@ -278,6 +285,7 @@ void retro_run(void)
 bool retro_load_game(const struct retro_game_info *info)
 {
     check_variables();
+    load_bootroms();
 
     snprintf(retro_game_path, sizeof(retro_game_path), "%s", info->path);
     log_cb(RETRO_LOG_INFO, "Loading game: %s\n", retro_game_path);

platforms/shared/desktop/config.cpp

@@ -118,6 +118,7 @@ void config_read(void)
     config_emulator.ffwd_speed = read_int("Emulator", "FFWD", 1);
     config_emulator.save_slot = read_int("Emulator", "SaveSlot", 0);
     config_emulator.start_paused = read_bool("Emulator", "StartPaused", false);
+    config_emulator.bios_path = read_string("Emulator", "BiosPath");
     config_emulator.savefiles_dir_option = read_int("Emulator", "SaveFilesDirOption", 0);
     config_emulator.savefiles_path = read_string("Emulator", "SaveFilesPath");
     config_emulator.savestates_dir_option = read_int("Emulator", "SaveStatesDirOption", 0);
@@ -225,6 +226,7 @@ void config_write(void)
     write_int("Emulator", "FFWD", config_emulator.ffwd_speed);
     write_int("Emulator", "SaveSlot", config_emulator.save_slot);
     write_bool("Emulator", "StartPaused", config_emulator.start_paused);
+    write_string("Emulator", "BiosPath", config_emulator.bios_path);
     write_int("Emulator", "SaveFilesDirOption", config_emulator.savefiles_dir_option);
     write_string("Emulator", "SaveFilesPath", config_emulator.savefiles_path);
     write_int("Emulator", "SaveStatesDirOption", config_emulator.savestates_dir_option);

platforms/shared/desktop/config.h

@@ -46,6 +46,7 @@ struct config_Emulator
     int ffwd_speed = 1;
     bool show_info = false;
     std::string recent_roms[config_max_recent_roms];
+    std::string bios_path;
     int savefiles_dir_option = 0;
     std::string savefiles_path;
     int savestates_dir_option = 0;

platforms/shared/desktop/emu.cpp

@@ -167,6 +167,16 @@ bool emu_is_empty(void)
     return !core->GetCartridge()->IsReady();
 }
 
+bool emu_is_bios_loaded(void)
+{
+    return core->GetMemory()->IsBiosLoaded();
+}
+
+void emu_load_bios(const char* file_path)
+{
+    core->GetMemory()->LoadBios(file_path);
+}
+
 void emu_reset(void)
 {
     emu_debug_command = Debug_Command_None;

platforms/shared/desktop/emu.h

@@ -70,6 +70,9 @@ EXTERN void emu_resume(void);
 EXTERN bool emu_is_paused(void);
 EXTERN bool emu_is_debug_idle(void);
 EXTERN bool emu_is_empty(void);
+EXTERN bool emu_is_bios_loaded(void);
+EXTERN void emu_load_bios(const char* file_path);
+EXTERN void emu_load_bios(const char* file_path);
 EXTERN void emu_reset(void);
 EXTERN void emu_audio_mute(bool mute);
 EXTERN void emu_audio_reset(void);

platforms/shared/desktop/gui_filedialogs.cpp

@@ -24,6 +24,7 @@
 #include "gui_debug_memory.h"
 #include "gui_debug_disassembler.h"
 #include "gui_debug_trace_logger.h"
+#include "gui_menus.h"
 #include "application.h"
 #include "config.h"
 #include "emu.h"
@@ -163,7 +164,9 @@ void gui_file_dialog_choose_savestate_path(void)
     nfdresult_t result = NFD_PickFolderU8_With(&outPath, &args);
     if (result == NFD_OKAY)
     {
+        strcpy(gui_savestates_path, outPath);
         config_emulator.savestates_path.assign(outPath);
+        update_savestates_data();
         NFD_FreePath(outPath);
     }
     else if (result != NFD_CANCEL)
@@ -182,8 +185,8 @@ void gui_file_dialog_choose_screenshot_path(void)
     nfdresult_t result = NFD_PickFolderU8_With(&outPath, &args);
     if (result == NFD_OKAY)
     {
+        strcpy(gui_screenshots_path, outPath);
         config_emulator.screenshots_path.assign(outPath);
-        update_savestates_data();
         NFD_FreePath(outPath);
     }
     else if (result != NFD_CANCEL)
@@ -192,6 +195,30 @@ void gui_file_dialog_choose_screenshot_path(void)
     }
 }
 
+void gui_file_dialog_load_bios(void)
+{
+    nfdchar_t *outPath;
+    nfdfilteritem_t filterItem[1] = { { "BIOS Files", "img" } };
+    nfdopendialogu8args_t args = { };
+    args.filterList = filterItem;
+    args.filterCount = 1;
+    args.defaultPath = config_emulator.last_open_path.c_str();
+    file_dialog_set_native_window(application_sdl_window, &args.parentWindow);
+
+    nfdresult_t result = NFD_OpenDialogU8_With(&outPath, &args);
+    if (result == NFD_OKAY)
+    {
+        strcpy(gui_bios_path, outPath);
+        config_emulator.bios_path.assign(outPath);
+        emu_load_bios(outPath);
+        NFD_FreePath(outPath);
+    }
+    else if (result != NFD_CANCEL)
+    {
+        Log("Load Bios Error: %s", NFD_GetError());
+    }
+}
+
 void gui_file_dialog_load_symbols(void)
 {
     nfdchar_t *outPath;

platforms/shared/desktop/gui_filedialogs.h

@@ -33,6 +33,7 @@ EXTERN void gui_file_dialog_load_state(void);
 EXTERN void gui_file_dialog_save_state(void);
 EXTERN void gui_file_dialog_choose_savestate_path(void);
 EXTERN void gui_file_dialog_choose_screenshot_path(void);
+EXTERN void gui_file_dialog_load_bios(void);
 EXTERN void gui_file_dialog_load_symbols(void);
 EXTERN void gui_file_dialog_save_screenshot(void);
 EXTERN void gui_file_dialog_save_memory_dump(void);