http://www.benryves.com/projects/cogwheel A software emulator primarily for 8-bit Sega hardware, such as the Sega Master System, Sega Game Gear and SG-1000. The ColecoVision is also supported. The following features are currently supported: Z80 CPU (emulates all documented and most undocumented features). TMS9918A video with custom Sega VDP Master System and Game Gear extensions. Supports multiple versions (hardware revisions, PAL/NTSC) and emulates bugs depending on version. SN76489 (PSG) sound. Standard ROM mapper, Codemasters mapper and various simple flat-memory RAM and ROM mappers. More accurate memory emulation than usual allowing you to boot a BIOS (disabled by default). Sega joypad emulation and control via keyboard or joysticks. ColecoVision joypad emulation via keyboard with limited joystick support. Hardware profiles for SG-1000, SC-3000, SMS1, SMS2, Game Gear and ColecoVision. Japanese/Export hardware differences. The following features are planned: A decent Windows front-end GUI with debugging features. More input devices (light gun, rollerball). The following features would be nice, but are a bit beyond me: SF-7000 emulation; I can handle the SMS as I've programmed it myself, and the SG-1000 isn't too different. Having never worked with the SF-7000 hardware, I have to try and make sense of the system from very limited data and a few datasheets, and as such have no idea what I'm doing. --

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