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flat assembler > Macroinstructions > The "#" on constants names

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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
Why this works
Code:
macro m{
  constant#1 = "H"
}m
display constant1, 13, 10    
and this don't work
Code:
constant#1 = "H"
display constant1, 13, 10    
?

I'm trying to find a way of generate constants name attaching a number like this:
Code:
macro attach [names]{
common
  num = 1
forward
  names#num = 0
  num = num + 1
}    


Of course that code doesn't work, it's only to show what I want, if I do "attach var", I want "var1 = 0" to be defined instead of "varnum = 0".

Please help Sad
Post 16 Aug 2005, 01:45
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THEWizardGenius



Joined: 14 Jan 2005
Posts: 382
Location: California, USA
Quote:

Why this works
Code:
macro m{ 
  constant#1 = "H" 
}m

display constant1, 13, 10
    

and this don't work
Code:
constant#1 = "H" 
display constant1, 13, 10
    

?


*calls Tomasz* What's up with THIS?
Post 16 Aug 2005, 02:34
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 16513
Location: M87*
The '#' only works inside macros (including rept and irp). For your case you will need to use the preprocessor 'rept' to make the labels. Perhaps something like this.
Code:
rept 10 count {names#count=0}    
Label names can only be defined during the preprocessor stage. Once the assembly stage has begun only the values of the labes can be changed.
Post 16 Aug 2005, 03:12
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
Actually every name will have only one number, for example if I do "attach foo, bar", I'm specting foo1 and bar2 to be defined anymore.

Well I think with your help I will be able to do that now, thank you! Very Happy
Post 16 Aug 2005, 15:23
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 16513
Location: M87*
You need to put a double hash, one hash for each level of macro:
Code:
macro attach [names]{
forward
  rept 10 count \{names##count=0\} ;<--- two hashes here
}

attach foo, bar

;display foo+'0', 13, 10           ; Doesn't work
display foo1+'0', 13, 10           ; Works
display bar10+'0', 13, 10          ; Works
;display names5+'0', 13, 10        ; Doesn't work

rept 10 count {constant#count=0}

display constant7+'0', 13, 10      ; Works    
Post 16 Aug 2005, 16:54
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
No, wait, it doesn't work either Sad
Code:
macro attach [names]{
forward
  rept 10 count \{names#count=0\}
}

attach foo, bar

display foo+'0', 13, 10            ; Doesn't work
display foo1+'0', 13, 10           ; Doesn't work
display bar10+'0', 13, 10          ; Doesn't work
display names5+'0', 13, 10         ; Doesn't work

rept 10 count {constant#count=0}

display constant7+'0', 13, 10      ; Works    
Post 16 Aug 2005, 16:59
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7238
Location: Kraków, Poland
Actually according to the current manuals, you should use backslashes to escape the hash as many times as you need, as with any other macro-specific operators. The multiple hashes are kept for backward compatibility, but are no longer documented officially. Wink
Post 16 Aug 2005, 17:02
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
Code:
macro attach [names]{
forward
  rept 10 count \{names \# count=count\}
}    


Thanks Tomasz Very Happy
Post 16 Aug 2005, 17:33
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
Well, after hours of tries I'm still having problems doing this Sad

I need a macro which do the following:
Code:
someMacro 1, 5, 7, 10.5

;At this point I want these numerical constants (not equates) defined and with these values
;value1 = 1
;value2 = 5
;value3 = 7
;value4 = 10.5    


I can't find a way to do that Sad
Post 16 Aug 2005, 23:07
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Reverend



Joined: 24 Aug 2004
Posts: 408
Location: Poland
Code:
        irps count, 1 2 3 4 5 6 7 8 9 10
         { foo # count = count }     
Post 16 Aug 2005, 23:56
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
Reverend, it doesn't works either. I need every constant with the values passed to the macro, not "fooX = X".

Another example:
Code:
someMacro 10, 7.2, aConstant

; At this point I need EXACTLY these constants defined with those values:

;foo1 = 10
;foo2 = 7.2
if foo3 = aConstant
  display "OK, the macro works!!",13,10
end if    
I need something like "foo # paramNumber = paramValue", where foo is always "foo", paramNumber goes from 1 to 3 and paramValue 10, 7.2, aConstant when I call the macro with this "someMacro 10, 7.2, aConstant".
Post 17 Aug 2005, 00:36
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UCM



Joined: 25 Feb 2005
Posts: 285
Location: Canada
oh, btw you mean:
if foo3 eq aConstant
not
if foo3 = aConstant
cause it woudn't be valid, = is for assigning constants.

_________________
This calls for... Ultra CRUNCHY Man!
Ta da!! *crunch*
Post 17 Aug 2005, 01:06
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
UCM, "if foo3 = aConstant" is valid, check it with this if you want:
Code:
foo = 4
bar = 5

if foo = bar
  display "foo = 5",13,10
end if
bar = bar - 1
if foo = bar
  display "foo = 4",13,10
end if    
BTW, aConstant is a numerical constant like the others.
Post 17 Aug 2005, 01:11
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 16513
Location: M87*
Code:
macro bar name,[count,value] {forward name#count=value}
bar foo,1,1,2,5,3,7,4,10
bar foo,1,10,2,7.2,3,aConstant    
BUt I think you want automatic numbering? I'm not sure if it is possible to get the numbering automatic, perhaps it is but I can't see how. But the above macro will do the job for you if you put the numbering manually.
Post 17 Aug 2005, 01:18
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
revolution wrote:
BUt I think you want automatic numbering?
Yes, you are right, I need automatic and always from 1 to count. Thanks for post that code, I didn't know that the macros with [x,y] were possible.
Post 17 Aug 2005, 01:48
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UCM



Joined: 25 Feb 2005
Posts: 285
Location: Canada
Oh, well maybe I'm getting rather mixed up.

_________________
This calls for... Ultra CRUNCHY Man!
Ta da!! *crunch*
Post 17 Aug 2005, 02:09
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7238
Location: Kraków, Poland
One of possible solutions is:
Code:
macro someMacro [val]
 { common
    counter equ 1
   forward
    match current,counter ; this we need to get value of counter before preprocessing
    \{
       value \# current = val
       rept 2 i:current \\{ counter equ i \\} ; this increases the counter
    \}
 }

someMacro 1,5,7,10.5 ; it defines value1=1, value2=5, etc.    
Post 17 Aug 2005, 09:42
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Madis731



Joined: 25 Sep 2003
Posts: 2145
Location: Estonia
On a side-topic about constants:
Is there a way to visually unpack bits and FASM still generates:
Code:
mov eax,1000 0000b
    

Of course FASM gives error here, but what can delete the extra spaces for FASM to assemble?
Post 17 Aug 2005, 10:01
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
Surprised Excelent Tomasz, thank you!!!

Just another question, why only works with "rept 2"? I can't see why is needed repeat 2 times "counter equ i".
[edit]I know now, the first time "counter EQU i" and the second time "counter EQU (i+1)", sorry Embarassed[/edit]
Post 17 Aug 2005, 11:27
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7108
Location: Slovakia
grrr, i was going to make same solution as privalov but i forgot to escape # operator... grrr, i could have been first Smile))
Post 17 Aug 2005, 19:12
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