How to display macro parameter

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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: 20423
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: 1823

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: 20423
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: 1823

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: 20423
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: 1823

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: 1823

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

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