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Old 11-03-2006, 01:31 PM   #1
ashlesha
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Question what is math emulation?


Can someone tell me where I can get information about Math Emulation in the kernel?
Thanks!
A
 
Old 11-03-2006, 01:37 PM   #2
Gethyn
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What kind of information do you need? Putting "math emulation" into Google gives a load of results. For anything other than embedded and old CPUs, math emulation should be totally unnecessary these days.
 
Old 11-03-2006, 01:39 PM   #3
kaz2100
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Hi,

You can find them at help (menuconfig). Also, xconfig and gconfig can show same message.

Happy Penguins.
 
Old 11-03-2006, 01:40 PM   #4
ashlesha
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hi,
i m working on an embedded MIPS processor and when I google math emulation, i just see links that point to questions asked on various forums..
-a
 
Old 11-03-2006, 01:51 PM   #5
khaleel5000
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I googled my eyes out , whats math emulation anyways?

Last edited by khaleel5000; 11-03-2006 at 02:08 PM.
 
Old 11-03-2006, 01:52 PM   #6
Gethyn
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Well, from a cursory glance at Google, it appears that you will need to include math emulation for a MIPS processor. You still haven't said what you need this information for. If you want to know whether math emulation is necessary, the answer is apparently yes. If you need more detailed information, ask!
 
Old 11-03-2006, 03:02 PM   #7
michaelk
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The earlier Intel x86 processors used seperate math chips i.e. coprocessor or FPU. If your motherboard did not have a coprocessor installed then you would have to use math emulation.

I believe that 2.4 kernels and later are capable of autodetecting a FPU will run math emulation if not. AFAIK the same holds true for MIPS kernels.
 
Old 11-03-2006, 03:09 PM   #8
ashlesha
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hi Gethyn

my 2.6.14.6 linux kernel gets stuck during the boot processor on my board (the encore m3 board fm alchemy with the au1500 processor), at the point where it has mounted the NFS and has freed memory -- it cannot for some reason open the initial console--- i tried appending init=/bin/busybox to the boot args too but get the same problem, so m trying to eliminate any higher level probs such as whether math emulation is present or not..

thanks,
ashlesha.
 
  


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