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Index > Compiler Internals > fasm if cycle syntax

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filox



Joined: 13 Feb 2013
Posts: 11
filox
Hi,
POINT 1:

if ~1 eq 0
display "ok! - BITWISE",0xA
end if

if ~1 eq
display "ok! - NULL",0xA
end if

if 0 eq ~1
display "ok! - ZERO",0xA
end if

I think last display directive don't show cause cycle don't read ~ character.
Is there another way to adapt it?

POINT 2:
Is there a way to make more complex if?
example:

if (%>=33 & %<=126) | (%>=200 & %<=500)

Thanks Smile
Post 22 Aug 2019, 15:56
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7430
Location: Kraków, Poland
Tomasz Grysztar
This is in fact one of the reasons why in fasmg EQ operator no longer does compare token sequences (it has to be done with MATCH instead) but only values of valid sub-expressions. The way EQ works in fasm 1 is a bit problematic on boundaries. In your first two samples "~" character is a negation of logical condition "1 eq 0" or "1 eq", while in the third sample "~" is just a part of the compared token sequences - it compares "0" with "~1".

As for the second question, yes - you can create complex conditions with help of logical operators.
Post 22 Aug 2019, 21:27
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