macro number how do ?

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Roman

Joined: 21 Apr 2012
Posts: 1852

Roman 23 Jul 2020, 15:55

Code:

macro mM2 { mov eax,1 }

In code:
zz EQU 2
mM#zz

Get fasm error.

I expect get mM2

23 Jul 2020, 15:55

DimonSoft

Joined: 03 Mar 2010
Posts: 1228
Location: Belarus

DimonSoft 23 Jul 2020, 16:06

AFAIR, # doesn’t work outside macros.

23 Jul 2020, 16:06

Roman

Joined: 21 Apr 2012
Posts: 1852

Roman 23 Jul 2020, 16:16

I try this but get Fasm error . Illegal instruction mM2

Code:

macro mM2 { mov eax,1 }
macro mMmm chTp {     
            zz EQU mM#chTp
            zz
            }
In code:
mMmm 2

Last edited by Roman on 24 Jul 2020, 11:36; edited 1 time in total

23 Jul 2020, 16:16

DimonSoft

Joined: 03 Mar 2010
Posts: 1228
Location: Belarus

DimonSoft 24 Jul 2020, 11:29

Isn’t mM2 an illegal instruction?

24 Jul 2020, 11:29

Roman

Joined: 21 Apr 2012
Posts: 1852

Roman 24 Jul 2020, 11:37

O! This work !

Code:

macro mM2 { mov eax,1 }
macro mMmm chTp {     
            mM#chTp           
            }
In code:
mMmm 2

But not work if:

Code:

Rr EQU 2
mMmm Rr

24 Jul 2020, 11:37

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20460
Location: In your JS exploiting you and your system

revolution 24 Jul 2020, 12:34

You misunderstand the rules for EQU. Macros arguments don't translate EQUs.

If you insist upon using EQU then use match to translate the EQU arguments.

Code:

macro mM2 { mov eax,1 }
macro mMmm chTp { mM#chTp }

mMmm 2

Rr EQU 2
match x,Rr{mMmm x}

24 Jul 2020, 12:34

Roman

Joined: 21 Apr 2012
Posts: 1852

Roman 24 Jul 2020, 13:08

I write this:

Code:

macro mM2 { mov eax,1 }
macro mMmm chTp {    
           match dst src, chTp \{
           mM#dst    \}
            }
In code:
 zz EQU 2
mMmm zz

Compile but nothing asm code get !
Empty ! I check in IDA Pro. Must be mov eax,1

What i do wrong ?

24 Jul 2020, 13:08

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20460
Location: In your JS exploiting you and your system

revolution 24 Jul 2020, 13:15

That match fails because you asked for two parameters (dst and src) but only provided one (zz).

24 Jul 2020, 13:15

Roman

Joined: 21 Apr 2012
Posts: 1852

Roman 24 Jul 2020, 13:17

Fasm get error illegal instruction mMdst:

Code:

macro mMmm chTp {    
           match dst, chTp \{
           mM#dst    \}
            }
    
      dds EQU 2
      mMmm dds

24 Jul 2020, 13:17

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20460
Location: In your JS exploiting you and your system

revolution 24 Jul 2020, 13:25

You need to escape the #

Code:

mM\#dst

24 Jul 2020, 13:25

Roman

Joined: 21 Apr 2012
Posts: 1852

Roman 24 Jul 2020, 13:39

Thanks ! Work !
Its magic ! I got into a fairy tale Smile

24 Jul 2020, 13:39

DimonSoft

Joined: 03 Mar 2010
Posts: 1228
Location: Belarus

DimonSoft 24 Jul 2020, 15:57

PREPSRC should help a lot.

24 Jul 2020, 15:57

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