This gave the Genesis abilities far beyond the basic bleeps and bloops of other consoles at the time, and decided it simply had to be built into a dedicated hardware synth. Considering how easy it is to find ROMs for these old games online, do you actually need a GenDumper of your own? But it’s still an interesting piece of hardware, and if you look close enough, you just might learn a thing or two from the design. The keen-eyed reader might also note there’s a lesson to be learned about finalizing the name of your project before sending off your PCBs for manufacturing.
Currently I also work and a version of the same device, but it works on a mega Arduino. Currently reads and writes common megadrive cartridges. It also reads atari cartridges and 8k still in testing. I am improving the software to be able to release the source codes.
The Teradrive shipped in 1991 with an Intel 80286, 16-bit processor which was already two processor generations behind at the time. The meager 10Mhz clock speed was on the lower end of the performance spectrum which meant that many DOS titles ran poorly…or not at all. The SEGA Genesis was launched at the tail end of the 1980s, bringing a new level of performance to the console world. At the time, 2D graphics ruled the roost, outside a few niche titles here and there. Decades later however, the demoscene continues to work in earnest. The Red Eyes demo is a great example of what can be done when pushing the Genesis hardware to the limits.
https://romsdownload.net/roms/playstation-2/marvel-vs-capcom-2-new-age-of-heroes-421652I got the idea to use a memory board from a Macintosh Portable as a way to run slightly altered versions of the original game code on the Genesis. Soon I discovered a ‘miracle’ solution… Intel had developed these new devices called ‘Flash ROM’, and for $50 I was able to buy two 68F020 chips. Further, back when I was taking apart cartridges to map out their pinouts, I discovered that the “Populous” one used two 8 bit wide ROMs instead of the more common 16 bit wide devices. In theory, the Sega Teradrive was a dream-machine; combining the utility of an IBM PC with the fun of a Sega Mega Drive. The dual functionality extended to the video modes where both VGA and composite video were supported. However, the reality was that the final design was less than desirable.
Oh wait, I can just punch in my cd key and download it, right? Those are for special partners with new license keys. They don’t actually get the old cd key codes and allow people that bought the game TWENTY THREE EFFING YEARS AGO to download it and run it on modern systems.
[Thea’s] first begins by exploring why the Genesis sound is so unique. In collaboration with Yamaha, the YM2612 FM synthesis chip was built, a cost-reduced sound engine similar to that in the famous DX7 synthesizer of the 1980s.
Based on the ATmega324PB, the GenDumper can take those dusty old Sega cartridges and back them up to an image file on your computer. Right now the hardware depends on a Windows program, but according to the documentation, is working on a platform-agnostic Python script so everyone can play along.
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