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Index > Macroinstructions > processing macro names

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IceStudent



Joined: 19 Dec 2003
Posts: 60
Location: Ukraine
IceStudent
Hi!

Anybody can explain this:
Code:
macro m name*,[args]
 {
common
        local nname
        nname equ ?#name#@@YGI ; ok, preprocessed: nname?0000000 equ ?fot@@YGI
        match a,args
        \{
                forward
                        nname equ nname\#I
                common
                        nname equ nname\#@Z
        \}
        match ,args
        \{
                nname equ nname\#Z ; wrong! preprocessed: nname?0000000 equ nname?0000000Z
        \}
                nname: ; nname?0000000Z: 
                 dd 0
 }


macro m2 name*,[args]
 {
common
        local nname
        nname equ ?#name#@@YGI ; ok: nname?0000001 equ ?foo@@YGI
        match a,args
        \{
                forward
                        match n,nname \\{ nname equ n\\#I \\}
                common
                        match n,nname \\{ nname equ n\\#@Z \\}
        \}
        match ,args
        \{
                match n,nname \\{ nname equ n\\#Z \\} ; ok: nname?0000001 equ ?foo@@YGIZ
        \}
                nname: ; ok: ?foo@@YGIZ:
                 dd 0
 }

m fot
m2 foo

    


What I must to do to receive actual new name without inserting this matches? Why without it I got glued local names, but not actual name?
Please, explain me this.
Post 13 Nov 2006, 09:27
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
same problem i had recently. no idea why it's needed too Sad
Post 13 Nov 2006, 10:50
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shoorick



Joined: 25 Feb 2005
Posts: 1607
Location: Ukraine
shoorick
i'm using "..label" for locals in macro
=====
↓now got it Smile i mixed it with other situation


Last edited by shoorick on 13 Nov 2006, 13:20; edited 2 times in total
Post 13 Nov 2006, 11:08
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IceStudent



Joined: 19 Dec 2003
Posts: 60
Location: Ukraine
IceStudent
..label not necessary here, this macroses for example. And it isn't helps :)
Post 13 Nov 2006, 11:40
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7750
Location: Kraków, Poland
Tomasz Grysztar
Can you explain in detail which part you expect to work differently?
Post 13 Nov 2006, 12:49
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IceStudent



Joined: 19 Dec 2003
Posts: 60
Location: Ukraine
IceStudent
I want to ask, is match so necessary to get actual name in symbolic constant? Or an other ways are exist?
Post 13 Nov 2006, 13:11
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7750
Location: Kraków, Poland
Tomasz Grysztar
What do you mean by 'actual name'? (Sorry, perhaps I slept too short today...)
Post 13 Nov 2006, 13:18
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7750
Location: Kraków, Poland
Tomasz Grysztar
Oh, OK, I get it - the second macro is the one that works correctly for you, isn't it?
Yes, you have to do it with "match" - because concatenation can be done only by macro, the EQU directive itself cannot do a conctatenation for you.
Post 13 Nov 2006, 13:20
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
your explaination doesn't clear for me, why this doesn't work (as expected):
Code:
macro a {
X equ something
X equ X#abcd  ;this doesn't append abcd to X
}    
Post 13 Nov 2006, 13:47
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7750
Location: Kraków, Poland
Tomasz Grysztar
Concatenation operator is a line-maker operator, it is done while new line is generated by the macroinstruction. The EQU is standard preprocessor's directive, which are interpreted after the line is already generated. The line is thus generated by macro processor as "X equ Xabcd" and then preprocessed.

The MATCH is generally useful when you need to pass the contents of symbolic variable to the line-maker.
Post 13 Nov 2006, 14:21
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
thx
Post 13 Nov 2006, 15:33
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IceStudent



Joined: 19 Dec 2003
Posts: 60
Location: Ukraine
IceStudent
Thank you.
Post 13 Nov 2006, 16:29
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afw2004



Joined: 16 Jun 2005
Posts: 49
Location: Kharkov, Ukraine
afw2004
Hi.

I have another problem with macro parameters.

I want to pass parameter to macro and want to save it into temporary name to use later in another macro.

macro MyMacro param1, param2
{
temp_param = param1
}

but it generate error. Is there some way to define temporary global names whithin macro?
Post 25 Jan 2007, 14:21
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
afw2004: "=" is assembly-time thing for numeric constant. use "equ"
Post 25 Jan 2007, 15:29
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