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Index > Macroinstructions > Interrupt preprocessing early

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DimonSoft



Joined: 03 Mar 2010
Posts: 1152
Location: Belarus
DimonSoft 27 Dec 2022, 16:22
I feel it has recently been discussed but I can’t really find the topic (except for one related to repeating macro blocks).

When writing in a FASMW editor, it’s quite convenient to use plain string literals as error messages:
Code:
match =something , bad happened { 'Something bad happened.' }    

This makes FASMW show the string in the error window, without the err directive. But the preprocessing is then continued which, although will not produce any output file later, just seems to be wrong, ’cause the error condition has already been detected and there’s no need to proceed.

Is there any way to interrupt preprocessing stage early at particular point in code? (preferably without intervening what the FASMW error window will show)
Post 27 Dec 2022, 16:22
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8103
Location: Kraków, Poland
Tomasz Grysztar 27 Dec 2022, 20:39
There are several kinds of faults that make the preprocessor stop, including a "too much arguments to a macro" error. You could use that one as following:
Code:
macro stop {} ; this macro now expects no arguments

match =something , bad happened { stop 'Something bad happened.' }    
Post 27 Dec 2022, 20:39
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DimonSoft



Joined: 03 Mar 2010
Posts: 1152
Location: Belarus
DimonSoft 27 Dec 2022, 21:41
Sadly, this one doesn’t make FASMW show the string in its error window.
Post 27 Dec 2022, 21:41
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8103
Location: Kraków, Poland
Tomasz Grysztar 27 Dec 2022, 22:23
Errors that occur during preprocessing never do.
Post 27 Dec 2022, 22:23
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