# MelonDS Memory Domains

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The Nintendo DS's architechture does not support IEEE754 Floats and isn't compatible with the built-in Vector Engine lists. Special lists with the NDS prefix are bundled with MelonDS-Vanguard.
{% endhint %}

MelonDS-Vanguard exposes the following domains in RTC:

* **MainRAM**: Main memory (Dedicated WRAM for ARM9). This contains the bulk of loaded data
* **SharedWRAM**: Shared memory between ARM9 and ARM7.
* **ARM7WRAM**: Dedicated WRAM for ARM7. Used for auxiliary tasks
* **VRAM**: Video Ram
* **CartROM**: Contains the ROM
