FILD doubt

[Vikas N Kumar]

Hi
I am trying to use the FILD instruction on the 64-bit AMD64 machine,
and I am having the following error.

If my code is as below


fild rax

I get the error " invalid combination of opcode and operands", when
assembling. So i try the memory address use instead of rax,

fild [rbp-8]  and i still get the same error.

Any help will be appreciated.
How do i place an int in the floating point stack and why is the above
error occurring ?

If I use cvtsi2sd it will work fine, but then how do i multiple two
xmm registers which have only one double precision number in them. As
in, I load one double-precision number in XMM0 and one in XMM1, but
what instruction do i use to multiply them correctly ?


Thanks
Vikas