flat assembler - [SOLVED] Macroinstructions - argument is count or variable?

Index > Macroinstructions > [SOLVED] Macroinstructions - argument is count or variable?

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Kazyaka

Joined: 10 Oct 2011
Posts: 62
Location: Earth

Kazyaka

How can I check if an argument is count (e.g. 235 or -10.06) or variable (e.g. Val_1)?

Example:

Code:

macro Test Arg
{
if Arg is count
cmp eax, Arg
else
cmp eax, [i+Arg]
end if
}

I hope u understand what I mean.

Last edited by Kazyaka on 09 Jun 2012, 17:04; edited 1 time in total

08 Jun 2012, 17:51

shutdownall

Joined: 02 Apr 2010
Posts: 518
Location: Munich

shutdownall

One way is to pass two arguments, one which is used for type or handling of data.
For what exactly is it needed ?
What is variable "i" in your example ?

08 Jun 2012, 22:36

Kazyaka

Joined: 10 Oct 2011
Posts: 62
Location: Earth

Kazyaka

Code:

i=imgbase

ImageBase = 400000

09 Jun 2012, 08:25

Picnic

Joined: 05 May 2007
Posts: 1288
Location: behind the arc

Picnic

@Kazyaka, you may find useful eqtype operator to distinguish types.

detailed "eqtype" evaluation
determining the type of macro arguments

If they don't suit your needs, shutdownall approach is a fairly easy solution.

09 Jun 2012, 08:44

Kazyaka

Joined: 10 Oct 2011
Posts: 62
Location: Earth

Kazyaka

It won't help me because Val1 has the same eqtype as 42.

@shutdownall
It was only example. I can't use your solution in this example:

Code:

macro Test [Arg] 
{ 
if Arg is count 
cmp eax, Arg 
else 
cmp eax, [i+Arg] 
end if 
}

Now I think it is impossible. Sad

09 Jun 2012, 08:57

JohnFound

Joined: 16 Jun 2003
Posts: 3500
Location: Bulgaria

JohnFound

With FASM macro engine, "impossible" can be only relative. Smile

Try with something like:

Code:

macro test_type  arg {
 if defined arg#0 & arg#0+1 = arg * 10+1
   display 1, 'constant', 13, 10
 else
   display 1, 'label', 13, 10
 end if
}

Start:

test_type 1234
test_type Start

It will not work only if you test the label with some name "name" and you have defined label with name "name0" at the same address as the tested label.

09 Jun 2012, 16:05

Kazyaka

Joined: 10 Oct 2011
Posts: 62
Location: Earth

Kazyaka

@JohnFound

It really works! Thank you. Smile

09 Jun 2012, 17:03

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