Leahnaya/GBA_MultiMenu
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Lesserkuma 2023-12-17 00:46:37 +01:00
parent 1bf4927d6b
commit 12d953d8fd
3 changed files with 15 additions and 11 deletions
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2
README.md
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@ -75,6 +75,8 @@ If the cartridge has a battery installed, the ROMs must be SRAM-patched with [GB
If the cartridge has no battery installed, the ROMs must be patched for batteryless SRAM saving with maniac's [Automatic batteryless saving patcher](https://github.com/metroid-maniac/gba-auto-batteryless-patcher/).
On battery-equipped cartridges, when starting a game from the menu, the previously played game's save data will be read from SRAM and stored to permanent flash memory. To skip this, you can hold the SELECT button while starting the game.
## Compatibility
Tested repro cartridges:
- 100SOP with MSP55LV100S

16
source/flash.c
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@ -301,16 +301,16 @@ IWRAM_CODE u8 BootGame(ItemConfig config, FlashStatus status)
FlashEraseSector((_flash_save_block_offset + status.last_boot_save_index) * _flash_sector_size);
FlashWriteData((_flash_save_block_offset + status.last_boot_save_index) * _flash_sector_size, SRAM_SIZE);
}
// Save status to flash
status.last_boot_save_index = config.save_index;
status.last_boot_save_type = config.save_type;
memset((void *)data_buffer, 0, 0x1000);
memcpy(data_buffer, &status, sizeof(status));
FlashEraseSector(_flash_status_block_offset * flash_sector_size);
FlashWriteData(_flash_status_block_offset * flash_sector_size, 0x1000);
}
// Save status to flash
status.last_boot_save_index = config.save_index;
status.last_boot_save_type = config.save_type;
memset((void *)data_buffer, 0, 0x1000);
memcpy(data_buffer, &status, sizeof(status));
FlashEraseSector(_flash_status_block_offset * flash_sector_size);
FlashWriteData(_flash_status_block_offset * flash_sector_size, 0x1000);
// Disable SRAM access
*(vu8 *)MAPPER_CONFIG4 = 0;

8
source/main.c
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@ -233,13 +233,15 @@ int main(void) {
sFlashStatus.last_boot_menu_index = page_active * 8 + cursor_pos;
if (!show_credits && !show_debug) {
LoadFont(0);
if (sFlashStatus.battery_present == 1) {
DrawText(5, SCREEN_HEIGHT - sFontSpecs.max_height - 3 - FontMarginBottom, ALIGN_LEFT, u"Loading… Don't turn off the power!", 48, font, (void*)AGB_VRAM+0xA000, FALSE);
}
DrawText(5, SCREEN_HEIGHT - sFontSpecs.max_height - 3 - FontMarginBottom, ALIGN_LEFT, u"Loading… Don't turn off the power!", 48, font, (void*)AGB_VRAM+0xA000, FALSE);
REG_DISPCNT ^= 0x0010;
dmaCopy((void*)AGB_VRAM+0xA000, (void*)AGB_VRAM, SCREEN_WIDTH * SCREEN_HEIGHT);
REG_DISPCNT ^= 0x0010;
}
if (kHeld & KEY_SELECT) {
// Skips reading latest save data from SRAM
sFlashStatus.last_boot_save_type = SRAM_NONE;
}
u8 error_code = BootGame(sItemConfig, sFlashStatus);
boot_failed = error_code;
redraw_items = 0xFF;