nullDC

NullDC is a freeware Sega Dreamcast and NAOMI videogame systems emulator for Microsoft Windows under active development, though the release timeline tends to be uncertain and widen through time. nullDC is able to run many Dreamcast games in full speed with dual core processors.
NullDC requires the latest version of Microsoft DirectX 9.0c, the latest Visual C++ runtime libraries and optionally WinPcap for modem emulation. Dump of the original console BIOS is also needed. It is recommended to install the latest DirectX before running nullDC.
It has a plugin architecture, with several alternative implementations (some ported from Chankast) for graphics, sound, reading games burned to CD-ROMs (it cannot read GD-ROMs directly) or disk image files, memory cards, etc.
NullDC does not support direct joypad. It is recommended to use program that enable keyboard to joypad button assignment/emulation such as xpadder.
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