[solved]macro how get next equ register ?

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Roman

Joined: 21 Apr 2012
Posts: 1791

Roman 14 Dec 2023, 09:58

Code:

forRegs_1 equ eax
forRegs_2 equ ecx
forRegs_3 equ edx
forRegs_4 equ [esi]
macro for num {
      match  _forNxtEq,_forNxtEq \{     
      mov forRegs_\#_forNxtEq,num      
      _forNxtEq equ  _forNxtEq+1      
      \}      
      } 
_forNxtEq equ  1
          for2 10
          for2 20
          for2 30

I get all mov eax
But expected
mov eax,10
mov ecx,20
mov edx,30

Last edited by Roman on 14 Dec 2023, 10:25; edited 1 time in total

14 Dec 2023, 09:58

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20333
Location: In your JS exploiting you and your system

revolution 14 Dec 2023, 10:02

Code:

_forNxtEq =

You can't use = with the preprocessor. Try with equ

Another problem is this "_forNxtEq equ _forNxtEq+1". The preprocessor doesn't compute results with equ, all it does is keep appending "+1" to the end. Try with rept instead.

14 Dec 2023, 10:02

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20333
Location: In your JS exploiting you and your system

revolution 14 Dec 2023, 10:15

To illustrate the effect of using + with equ, see this:

Code:

a equ 1
a equ a+1
a equ a+1
a equ a+1
a equ a+1
a equ a+1

match A,a {
        irps x,A \{
                display \`x
        \}
}

Code:

~ fasm test.asm 
flat assembler  version 1.73.31  (16384 kilobytes memory)
1+1+1+1+1+1
1 passes, 0 bytes.

14 Dec 2023, 10:15

Roman

Joined: 21 Apr 2012
Posts: 1791

Roman 14 Dec 2023, 10:16

Thanks.
Rept help me.

14 Dec 2023, 10:16

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