How to display macro parameter

Index > Macroinstructions > How to display macro parameter

Author

Thread

Jin X

Joined: 06 Mar 2004
Posts: 133
Location: Russia

Jin X 03 Sep 2023, 10:56

Code:

macro x i*&
{
  display `i
}

i mov ax,bx

This will be precessed as display 'mov' ax,bx.
How to display it correctly?

03 Sep 2023, 10:56

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20761
Location: In your JS exploiting you and your system

revolution 03 Sep 2023, 12:52

You need to iterate over the arguments.

Try using irps in the x macro and put display inside irps.

03 Sep 2023, 12:52

Jin X

Joined: 06 Mar 2004
Posts: 133
Location: Russia

Jin X 03 Sep 2023, 17:36

revolution wrote:

Try using irps in the x macro and put display inside irps.

The best I found to do is:

Code:

macro displ s& {
    display `s#' '
}

macro x i*&
{
  irps a, i \{
    displ a
  \}
}

x mov eax, [ebx+5]

But this displays mov eax , [ ebx + 5 ] or moveax,[ebx+5] (if remove #' ')
Both look strange Sad

Can I improve it somehow?

03 Sep 2023, 17:36

Roman

Joined: 21 Apr 2012
Posts: 2022

Roman 03 Sep 2023, 20:53

And ignoring command mov eax, [ebx+5]

Very interesting what is mean i*& in macro x ?

03 Sep 2023, 20:53

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20761
Location: In your JS exploiting you and your system

revolution 03 Sep 2023, 22:45

Jin X wrote:

Can I improve it somehow?

Yes. You can eliminate the secondary macro.

Code:

macro x i& {
        irps a, i \{
                display \`a \# ' '
        \}
}

x mov eax, [ebx+5]

03 Sep 2023, 22:45

Roman

Joined: 21 Apr 2012
Posts: 2022

Roman 04 Sep 2023, 09:49

I try this but not work.

Code:

macro x i*& {  irps a, i \{
      if \`a = ' '
      display \`a \# ' '
      end if
      display \`a 
      \} } 
x mov eax,10

I get text moveax,10.
But i want get text mov eax,10

Fasm it is more magic than logic Smile

04 Sep 2023, 09:49

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20761
Location: In your JS exploiting you and your system

revolution 04 Sep 2023, 11:08

It might make it more clear what irps does if you try this

Code:

macro x i& {
        irps a, i \{
                display '{',\`a,'}',13,10
        \}
}

Note that no spaces are produced by irps.

04 Sep 2023, 11:08

Roman

Joined: 21 Apr 2012
Posts: 2022

Roman 04 Sep 2023, 11:42

I do this !

Code:

macro x i*& {  irps a, i \{
      if \`a = ':'
      display  ' '
     else
      display \`a
      end if
     
      \} }
;in code
x mov:eax,:[ebx+5]

I get text: mov eax, [ebx+5]

04 Sep 2023, 11:42

Roman

Joined: 21 Apr 2012
Posts: 2022

Roman 04 Sep 2023, 11:49

Idea !
Some fasm extra commands like irps, must have user setup parameters !
For flexible using irps !

For example

Code:

irps.p1:':'   ;This mean irps ignored symbol ':'

irps.p2:' '   ;this mean irps not ignored spaces, and perceives space as a separate element

;Or this
irps.ignr:':'
irps.sep:' '

04 Sep 2023, 11:49

Jin X

Joined: 06 Mar 2004
Posts: 133
Location: Russia

Jin X 04 Sep 2023, 15:12

As a solution. This displays only instruction name

Code:

macro x i*&
{
  match a b,i+ \{
    display \`a
  \}
}

x mov eax, [ebx+5]

P.S. Roman, RTFM for * and & Wink

04 Sep 2023, 15:12

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum