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Index > Macroinstructions > and/or match

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Jin X



Joined: 06 Mar 2004
Posts: 70
Location: Russia
Jin X
Hello.
How can I make AND/OR condition for MATCH ?

Why this doesn't work:
Code:
a equ 1
b equ 0
match =1:0,a:b { nop }    

This is not so beautiful:
Code:
a equ 1
b equ 0
match =1,a { match =0,b \{ nop \} }    


The second question: why this always generates nop?
Code:
a equ 1
b equ 0
match 0,a { nop }    
Post 14 Oct 2019, 11:44
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7616
Location: Kraków, Poland
Tomasz Grysztar
Jin X wrote:
Why this doesn't work:
Code:
a equ 1
b equ 0
match =1:0,a:b { nop }    
"=" applies only to a single token. So this should look like:
Code:
a equ 1
b equ 0
match =1:=0,a:b { nop }    


Jin X wrote:
The second question: why this always generates nop?
Code:
a equ 1
b equ 0
match 0,a { nop }    
Preprocessor treats "0" as a name here, so this defines parameter called "0" which takes the value of variable "a":
Code:
a equ 1
b equ 0
match 0,a { display `0 }    
This is no different from, for example:
Code:
a equ 1
b equ 0
match O,a { display `O }    
But note that fasmg disallows a numeric name in such place, it is only fasm's preprocessor that allows it.
Post 14 Oct 2019, 11:50
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Jin X



Joined: 06 Mar 2004
Posts: 70
Location: Russia
Jin X
Thanks, Tomasz Smile
Can I realize OR condition in 'match'?
Can I realize ELSE brunch?
Post 14 Oct 2019, 12:10
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7616
Location: Kraków, Poland
Tomasz Grysztar
There is no option for an OR. And ELSE MATCH is only possible with fasmg. Also, fasmg has some kind of OR available in case-insensitive matching, though this has very limited capabilities.
Post 14 Oct 2019, 12:28
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