# Nintendo DS
## Code Example
```html
```
### BIOS (melonds core only)
| File Name | Description | md5sum |
| ----------- | ------------- | ----------- |
| bios7.bin | NDS ARM7 BIOS - Required | `df692a80a5b1bc90728bc3dfc76cd948` |
| bios9.bin | NDS ARM9 BIOS - Required | `a392174eb3e572fed6447e956bde4b25` |
| firmware.bin | NDS Firmware - Required | `145eaef5bd3037cbc247c213bb3da1b3` |
| dsi_bios7.bin | DSi ARM7 BIOS - Optional | ` ` |
| dsi_bios9.bin | DSi ARM9 BIOS - Optional | ` ` |
| dsi_firmware.bin | DSi Firmware - Optional | ` ` |
| dsi_nand.bin | DSi NAND - Optional | ` ` |
| dsi_sd_card.bin | DSi SD Card - Optional | ` ` |
### CORES
The *nds* system supports 2 cores
- `melonds`
- `desmume2015`
If set to `nds`, emulator will use the `melonds` core.