Can't get % to work

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Plue

Joined: 15 Dec 2005
Posts: 151

Plue

I can't % to work. It seems like it is not replaced by the corresponding number. What is wrong?

Code:

macro hashtable_define2 hashtable, size {
        repeat size
            list_define hashlist_#hashtable%
        end repeat
}

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And some don't.

19 Aug 2009, 19:31

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4633
Location: Argentina

LocoDelAssembly

You'll need to do the following change:

Code:

macro hashtable_define2 hashtable, size {
        rept size i\{
            list_define hashlist_#hashtable\#i
        \}
}

% is available in assembler stage but you need to create symbols so you need preprocessor stage.

19 Aug 2009, 19:39

Plue

Joined: 15 Dec 2005
Posts: 151

Plue

Ok, thanks.

Another question: how can I check whether a macro parameter was passed or not (I think I want assembly stage here)?

19 Aug 2009, 19:43

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4633
Location: Argentina

LocoDelAssembly

Code:

macro wasPassed arg
{
local passed

  passed equ

  match any, arg
  \{
    display "Something was passed!", 13, 10
    passed equ 1
  \}

  match ,passed
  \{
    display "Nothing was passed...", 13, 10
  \}
}

; Tests
wasPassed alfa-beta-gamma
wasPassed

19 Aug 2009, 19:52

Plue

Joined: 15 Dec 2005
Posts: 151

Plue

Thank you!

20 Aug 2009, 08:43

Plue

Joined: 15 Dec 2005
Posts: 151

Plue

Is there any reason why I can't use match ,arg directly (instead of using passed)?

20 Aug 2009, 09:49

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4633
Location: Argentina

LocoDelAssembly

No reason, my answer simulated an "If passed/Else" instead of an "If passed/If not passed" Razz

20 Aug 2009, 18:41

Plue

Joined: 15 Dec 2005
Posts: 151

Plue

Is it not possible to create a new macro inside a macro?

Code:

macro hashtable_define table, size {
        if (size and (size-1)) <> 0
            __ error: size must be a power of 2
        end if
        
        macro hash_#table reg \{    ; doesn't seem to work
                and reg, size - 1
        \}
}

21 Aug 2009, 09:19

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 17937
Location: In your JS exploiting you and your system

revolution

Works for me:

Code:

macro hashtable_define table, size {
        if (size and (size-1)) <> 0
            __ error: size must be a power of 2
        end if
        
        macro hash_#table reg \{
                and reg, size - 1
        \}
}

hashtable_define testing,8
hash_testing eax

21 Aug 2009, 09:29

Plue

Joined: 15 Dec 2005
Posts: 151

Plue

Thanks for testing it. It seems like it won't work when the invokation of hashtable_define is placed after the invokation of hash_testing.

21 Aug 2009, 18:08

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 17937
Location: In your JS exploiting you and your system

revolution

Plue wrote:

Thanks for testing it. It seems like it won't work when the invokation of hashtable_define is placed after the invokation of hash_testing.

In fasm the preprocessor is not multi-pass. You have to define things before you can use them. Only the assembler is multi-pass.

21 Aug 2009, 22:29

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