> Hmm, not sure I understand why my comment is wrong then?
>
> Isn't it the preprocessor that tries to evaluate '0 - var'?
>
>

Indeed, it is not the preprocessor that evaluates that expression: it is=20
the assembler phase propper that tries to evaluate it into something it=20
can put in the .o file for consumption by the linker, which seems to be=20
limited to expressions of the form 'address + N', where N can be any=20
constant (including negative ones). '- address' is not of that form.

Wouter

--=20
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