"warning: word data exceeds bounds"

[wyvern666]

Ok, i found this warning when i:

a) Work with a segment declared as:

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[SECTION CODE PUBLIC ALIGN=16 CLASS=CODE FLAT]         
The warning only happens with "FLAT", no with "USE32".
For some reason i think that if i am not going to mix 16-bit and 32-bit code i am better declaring all in FLAT, after all that is win32 about (correct me if i am wrong). I use this same approach when declaring segments in MASM.

b) Declare a constant like this:

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STD_OUTPUT_HANDLE equ 0FFFFFFF5h
Using "0xFFFFFFF5" doesnt fix it.

c) Push the constant to stack:

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PUSH STD_OUTPUT_HANDLE
The warning go away if size operator "DWORD" is specified.

Ok, so is this a bug?. Im with NASM 2.09.10. Thanks