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Old 13 September 2010, 15:01   #53
Join Date: Jun 2010
Location: out in the wild
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Originally Posted by desiv View Post
I'm actually a bit surprised considering how many RAM w/FPU and accelerators with FPU options there are that so little software uses them, but the more I look, the more I see that there's not much FPU software out there..
It's probably because an FPU is easy to add to a design. It takes exactly the same amount of logic and pins to tell the 68030 that there is no FPU (equation for the BERR signal is equal to the FPU_CS equation - for those who know a few details about the '030).

"If you generate that signal anyway, you might as well add the socket" is probably what designers back in the days were thinking. However, if you do the math, then...:

Originally Posted by desiv View Post
That's exactly what I was thinking!
OK, I have no idea what you just said, but I assume it means you have a great design that allows you to use less expensive parts and make a SUPER FAST card!
Sorry - that was the technical explanation of "an FPU would jeopardize the high fastmem speed". I tend to go into detail too much...

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