There are a number of easy to correct bugs in the X86.INC file in nearly all FASM versions.
Some of the FCMOV instructions are falsewise stated as "FCOMI_instruction-assembler" instead of "FCMOV_instruction-assembler".

I've got a small syntax changing suggestion: Privalov, couldn't you change the "times" directive into "dup" for compatibility with other assemblers?
(Well, this could easily be done with EQUates, just for convenience)

But more confusing is the "tword" directive which should be changed into "tbyte" (like Intel defines it), since it actually represents ten bytes and NOT ten words (10*2).

These labels are correct, some of the "fcmov" instructions use the "fcomi_instruction" handler because they have 0DBh as first opcode byte instead of 0DAh that is used by the simple "fcmov_instruction" handler.

tword means "temporary word", not "ten words". It was used (after NASM) to provide better integrity of size operators - you can of course use "equ" for this, too - that's what is was initially intented for.

Sorry, I must have missed these.

well, but in order to simplify FASM, I removed the SSE3 instructions in my customized version

BOYKOTT PRESCOTT

open standards don't need DRM/TCPA!

calm down, its just a processor extension

TCPA? What kind of TCPA stuff does Prescott have?

If you're merely referring to NX pages, and calling that a bad thing, then shame on you. If there's something more to it, that would be interesting.