xorq: Error: suffix or operands invalid for `xor'

Hi everyone,
i have a problem with "xorq" in x86-64 bits when compiling an assembly code.

When i put this instruction: "" xorq $17179869184, %rax ""
i get this error when compiling: Error: suffix or operands invalid for `xor'

however if i put a number smaller than 2^31 (2147483648), the compilation is successful.

can anyone please tell me how to fix this problem?
I'm using gcc.

Thanks

The following site (read the "Immediates" section) seems to suggest that immediate values in x86-64 still have to be 32-bits:AMD64 Subpage

To do what you want, I think you have to move the 64-bit immediate into a register first:

Code:

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movabsq $17179869184, %rbx
xorq $rbx, %rax

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Thank you for your reply. Yes its seems that one should put the value into a register then execute xorq since they are considered as 32 bits