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Sega Genesis(Mega Drive) Emulators


The Sega Genesis was one of the two great 16-bit systems of it's time, the other being the Super Nintendo. As Sega was not able to obtain the trademark in the US, the unit was called Genesis there. The Genesis had two major addons: a 32-bit extension called 32X and a CD-ROM drive called Mega CD.

We should also point out that at some point a Sega Master System converter was released that allowed it's games to be used on the Genesis.

Genesis Specs:
  • CPU: Motorola 68000 at 7.61 MHz
    - 1 MByte (8 Mbit) ROM Area
    - 64 KByte RAM Area
  • Co-Processor: Z80 @ 4 MHz (Not Present in MK-1631)
    - Controls PSG (Programmable Sound Generator) & FM Chips
    - 8 KBytes of dedicated Sound Ram
  • Graphics:
    - 64 simultaneous colors of 512 color pallete.
    - Pixel resolution: 320 x 224
    - VDP (Video Display Processor)
    - 3 Planes: 2 scrolling playfields, 1 sprite plane
  • Sound:
    - PSG (TI 76489 chip)
    - FM chip (Yamaha YM 2612)
    - 6-channel stereo
    - 8 KBytes RAM
    - Signal/Noise Ratio: 14dB

32X Specs:
  • CPU: Dual Hitachi SH-2 RISC Processors @ 23 MHz each, 40MIPS.
  • Co-Processors:
    - Genesis 68000, and Z80
    - Genesis 32X VDP
  • Graphics:
    - 32,768 simultaneous colours on screen
    - Genesis resolution
    - Overlaying over existing Genesis/SegaCD video
    - 50,000 texture-mapped polygons/sec
    - Texture mapping
    - Hardware scaling and rotation
  • Sound:
    - Stereo PCM chip
    - Audio mixing with Genesis sound
    - Additional 2 channels (8 Channels total, or 16 with SegaCD)
   Mega CD Specs:
  • CPU: Motorola 68000 @ 12.5MHz
  • Memory:
    - 6Mbit (Program, picture data, sound data)
    - 512Kbit (PCM waveform memory)
    - 128Kbit (CD-ROM data cache memory)
    - 64Kbit (Backup memory)
    - 1Mbit (Boot ROM)
  • Sound:
    - PCM Sound Source:
    - Stereo, 8 Channels.
    - 8x Internal over-sampling digital filter
    - PCM and CD sound mixing.
    - Mixing with mixing terminal possible
    - Wavelength characteristics: 20Hz-20kHz.
    - Signal/Noise Ratio: Over 90dB (1kHz) (Line Out).
    - Stereo channel separation: Over 90dB.
    - Sampliing wavelength: 32MHz max.
    - D/A Convertor:
  • 16-bit D/A convertor
  • Misc:
    - Battery Backup Durection: Approx. 1 month
    - 1x CD-Rom Drive Speed (150kb/s)
    - Audio Out: L/W RCA pin jack.
    - Dimensions (WHD): 301mm x 212.5mm x 112.5mm (r1).

Sega Genesis



Sega Genesis & 32X



Sega Genesis & MegaCD

Emulators


 Fusion   Windows   Freeware          Rating: 8.9 (9381 Votes) 
  Multi system SEGA emulator
 Gens   Windows   Freeware          Rating: 8.8 (7985 Votes) 
  Genesis/Mega Drive emulator.
 Gens Plus!   Windows   Free          Rating: 8.4 (663 Votes) 
  
 Gens32   Windows   Free          Rating: 8.3 (1603 Votes) 
  Sega Genesis Emulator
 Ages   Windows   Freeware          Rating: 7.2 (217 Votes) 
  Genesis/Mega Drive emulator.
 RetroCopy   Windows/Linux   Free          Rating: 6.8 (120 Votes) 
  Multiple system emulator
 RetroDrive   Windows   Freeware          Rating: 6.6 (180 Votes) 
  Genesis/Mega Drive emulator.
 HazeMD   Windows   Free          Rating: 6.0 (53 Votes) 
  
 DGen/SDL   Windows   Open Source          Rating: 3.3 (11 Votes) 
  Sega Genesis/Mega Drive emulator
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