[News] Nueron/NuOS: Amiga-inspired computer project based on Coldfire processors | ANN.lu |
Posted on 21-Jan-2004 19:44 GMT by Senex | 68 comments View flat View list |
In the forum of Amiga.org, Stephen Smith of Austex Software ("Uropa2") presented his Amiga-inspired project Nueron/NuOS, a Coldfire computer with its own operating system. (A german translation can be found at amiga-news.de.)
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Nueron/NuOS: Amiga-inspired computer project based on Coldfire processors : Comment 63 of 68 | ANN.lu |
Posted by Nate Downes on 23-Jan-2004 13:34 GMT | In reply to Comment 60 ([JC]): Well, if you'd settle for "close enough" then I'd feel that an FPGA would do.
As koan pointed out, programming an FPGA is not a trivial task. I've found that even in the same chip family, timing can vary by a few kilohertz. In most cases, this varience would be ignored, but in the Amiga's chipset case, where timing is accurate to within 100hz, a few kilohertz can eliminate the compatiblity on the chip-level. Makes it unable to use chipset-dependent circuits like the Video Toaster.
Now, if you put a lot of work into it, you *can* make an FPGA accurate even through this varience. Using larger FPGA's, using higher-quality FPGA's, all of which raise the cost of the design, and you can get everything perfect. However, if you're just caring about software-compatibility, then shoot, even some pile of silicon sludge FPGA would do. It wouldn't be easy, but it would be much easier than trying to get things perfectly accurate. |
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