On Wed, Jan 09, 2008 at 09:24:07AM +0800, Liu Yu wrote:
>
> >
> > can you provide the test case that shows the error.
> >
>
> It seems that math-emu only be used for MPC8xx on current kernel.
It can be used for IBM/AMCC 4xx too.
--
David Gibson| I'll have my music baroque
>
> can you provide the test case that shows the error.
>
It seems that math-emu only be used for MPC8xx on current kernel.
---
#include
#include
#include
#include
void
fdiv(float f, float f1, float expected)
{
float f2;
f2 = f / f1;
printf("fdiv %e / %e = %e expected %e %s
On Jan 6, 2008, at 8:26 AM, Liu Yu wrote:
> This bug exists in the emulation of floating point division for
> powerpc.
>
> The original code cannot count the remainder correctly.
> I can provide a test case to trigger this bug.
> When use fdiv to count 1.1754941e-38f / 0.999f,
> the result
On Jan 6, 2008, at 2:44 PM, Dan Malek wrote:
>
> On Jan 6, 2008, at 12:07 PM, Benjamin Herrenschmidt wrote:
>
>> It's nice to see somebody digging in that scary math emu stuff. If
>> you
>> could also get rid of the warnings, it would be perfect :-)
>
> Yes, it is :-) I didn't think it would h
On Mon, 07 Jan 2008 07:49:33 +1100
Benjamin Herrenschmidt <[EMAIL PROTECTED]> wrote:
>
> On Sun, 2008-01-06 at 12:44 -0800, Dan Malek wrote:
> > While it's convenient, I still don't think kernel float
> > emulation should be a solution. The tools should
> > generate soft-float for the applicatio
On Jan 6, 2008, at 12:07 PM, Benjamin Herrenschmidt wrote:
> It's nice to see somebody digging in that scary math emu stuff. If you
> could also get rid of the warnings, it would be perfect :-)
Yes, it is :-) I didn't think it would have a life beyond MPC8xx.
> that this code was lifted f
On Sun, 2008-01-06 at 12:44 -0800, Dan Malek wrote:
> While it's convenient, I still don't think kernel float
> emulation should be a solution. The tools should
> generate soft-float for the applications and libraries.
I agree, for deployement, it's definitely not a solution, though it's
very co
On Sun, 2008-01-06 at 22:26 +0800, Liu Yu wrote:
> This bug exists in the emulation of floating point division for powerpc.
>
> The original code cannot count the remainder correctly.
> I can provide a test case to trigger this bug.
> When use fdiv to count 1.1754941e-38f / 0.999f,
> the r
