Need help on FPU division on 64 bit RHEL

[Halesh S <halesh.s@xxxxxxxxx>]

Hi,

I am writing assembly level code for dividing two numbers.

The assembly function i used is

float  assm_div(float a1, float b1)
{
 float res;
 __asm__ ("fld 8(%%ebp)"
          :
          :"a"(a1)
         );
 __asm__ ("fld 12(%%ebp)"
         :
         :"b"(b1)
         );
 __asm__ ("fdiv %st(1), %st");
 __asm__ ("fstp -8(%ebp)"
         );
 __asm__ ("fstp -12(%ebp)"
         );
 return res;
}

It works fine in Red hat 32 bit Linux, for the same its not working
Red hat 64 bit Linux, on same hardware.

Is there any changes required for code to make work??

Thanks,
Halesh