Le 06/12/2015 14:09, Andreas Schwab a écrit :
> Laurent Vivier writes:
>
>> I think qemu-m68k is emulating precisely the FPU. I've checked the
>> result of testfloat on qemu-m68k, and moreover I've compared the result
>> of softloat on my Quadra 800 (68040 FPU) against the result of qemu-m68k.
Laurent Vivier writes:
> I think qemu-m68k is emulating precisely the FPU. I've checked the
> result of testfloat on qemu-m68k, and moreover I've compared the result
> of softloat on my Quadra 800 (68040 FPU) against the result of qemu-m68k.
That doesn't implement Motorola 80-bit float. How are
John Paul Adrian Glaubitz writes:
> And it's not that Aranym doesn't have it's own problem. I'm still seeing
> the issues with kswapd consuming over 50% CPU time from time to time
> slowing down the emulated machine quite notably.
This is a known kernel bug, it can be worked around by writing 1
On 12/06/2015 12:13 PM, Laurent Vivier wrote:
> I think qemu-m68k is emulating precisely the FPU. I've checked the
> result of testfloat on qemu-m68k, and moreover I've compared the result
> of softloat on my Quadra 800 (68040 FPU) against the result of qemu-m68k.
>
> As I said, NaN is not defined
Le 05/12/2015 20:59, Thorsten Glaser a écrit :
> Dixi quod…
>> Laurent Vivier dixit:
>>> Le 21/11/2015 13:07, Andreas Schwab a icrit :
>>
Does that include the FPU emulation?
>>>
>>> I don't know: FPU emulation is on 96 bits (in fact 80...) and can have
>>> some bugs (I didn't fix the NaN fo
On 12/05/2015 09:12 PM, John Paul Adrian Glaubitz wrote:
> And, yes, this is well known and being worked on.
FYI, it's cas2 which is missing:
(sid-m68k-sbuild)root@z6:/# objdump --disassemble libpthread-2.21.so |
grep cas2l
dcae: 0efc 8100 9141 cas2l %d0,%d1,%d4,%d5,%a0@,%a1@
dd6c:
On 12/05/2015 08:59 PM, Thorsten Glaser wrote:
> It looks like Python running *on* qemu-m68k is, at the very least,
> broken (probably precisely because it does funny things to the FPU):
That's not questionable use, it's a bug and it will not make me stop
use qemu-m68k as it is multiple times fast
Dixi quod…
>Laurent Vivier dixit:
>>Le 21/11/2015 13:07, Andreas Schwab a icrit :
>
>>> Does that include the FPU emulation?
>>
>>I don't know: FPU emulation is on 96 bits (in fact 80...) and can have
>>some bugs (I didn't fix the NaN format for the moment).
>
>In this case, e.g. Python interpreter
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