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Author Topic: 68000 vs 68020 = 1 : 1 ?  (Read 2851 times)

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Offline PMC

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Re: 68000 vs 68020 = 1 : 1 ?
« on: August 16, 2004, 10:55:00 AM »
Is the '020 complete with an MMU and/or FPU?

You won't notice any difference in speed for programs that rely on the chipset for timing (eg most non-vector based games).  You should however notice that the OS is more responsive and that applications run faster (eg DPaint, wordprocessors etc).
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Offline PMC

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Re: 68000 vs 68020 = 1 : 1 ?
« Reply #1 on: August 16, 2004, 11:37:04 AM »
Quote

Apache2k wrote:
I dont know what MMU or FPU is, but it also has a math. processor..

Found the name of it: Hurricane 500.. does this say anything?

Apache2k


As Piru correctly pointed out, the FPU/MMU are supplied as separate units as the Floating Point Unit and Memory Management Unit were only fitted internally to some versions of the 68040 and 060.

Anyway, you have a Math Co-Processor fitted.  This should be the 68881 which is dedicated to floating point arithmetic.  Any applications that take advantage of floating point maths (eg Lightwave) will use this co-processor.

I'm guessing you're using an A2K system?
Cecilia for President