and/or match

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Jin X

Joined: 06 Mar 2004
Posts: 102
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 }

14 Oct 2019, 11:44

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 7861
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.

14 Oct 2019, 11:50

Jin X

Joined: 06 Mar 2004
Posts: 102
Location: Russia

Jin X

Thanks, Tomasz Smile

Can I realize OR condition in 'match'?
Can I realize ELSE brunch?

14 Oct 2019, 12:10

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 7861
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.

14 Oct 2019, 12:28

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