[U-Boot] floating point operation in powerpc

[U-Boot] floating point operation in powerpc

[prathika]

hi all
i am porting u-boot on powerpc 440.
i am also running a simple hello world application on it and I want to 
use floating point unit.

i have declared a floating point variable like this :
/float ftemp;

/ i am trying to print the floating point value like this:
/printf("ftemp=%f\n",ftemp);

/ i have included "float.h"

but still it doesnt print me the exact floating point value.
my output is like this:
/ftemp=%f

/ i have not edited MSR register. should i set the bit 18 for using the 
FPU in PPC?
where am I going wrong in using floating point? is there any switch or 
library that i should include while compiling the hello_world.c?

this might be seem very silly, but please help in sorting out this issue.

-- 
Regards,
Prathika R

[U-Boot] floating point operation in powerpc

[Wolfgang Denk]

Dear prathika,

In message <4A7A7946.6080007@deeopl.com> you wrote:
>
> i am porting u-boot on powerpc 440.
> i am also running a simple hello world application on it and I want to 
> use floating point unit.

Boot an operating system, then.

U-Boot is just a boot loader, and we do not support any FP operations
in U-Boot.

> where am I going wrong in using floating point? is there any switch or 
> library that i should include while compiling the hello_world.c?

Boot Linux, and run your application in Linux.

Best regards,

Wolfgang Denk

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