I am very new to fasm and assembly programming in general and was wondering why i'm given an 'invalid value' error when i try to use a general register next to a macro instruction.
Example:

mov ecx, 10h
if ecx = 10h
...
...
end if


Thanks,
Jake Mayer

Hello.

if ... end if is part of the preprocesser, so it's used for conditional assembly.
If you include "WIN32AX.INC" you can use .if and .endif as well as proc macros.

Got it working now, thanks for the help.