labeling procs for debug & <> braces

Index > Macroinstructions > labeling procs for debug & <> braces

Author

Thread

edemko

Joined: 18 Jul 2009
Posts: 549

edemko 30 Nov 2010, 08:36

Code:

;nok
macro proc [args]{
  common
    match name params, args\{
      if used name
        db 0,'proc ', `name, 0
        define@proc name, <params>
      end if
    \}
}


;ok
macro proc [args]{
  common
    match name params, args>\{
      if used name
        db 0,'proc ', `name, 0
        define@proc name, <params
      end if
    \}
}


;Are not both equal?

30 Nov 2010, 08:36

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8391
Location: Kraków, Poland

Tomasz Grysztar 06 Dec 2010, 14:03

In first case it is not possible to have only name and no parameters - because "name params" need to match at least two elements (one for "name" and one for "params"), and if only name is provided, the match will not happen.
In second case the ">" artificially provides something to match the "params" even when there is only name provided.

06 Dec 2010, 14:03

edemko

Joined: 18 Jul 2009
Posts: 549

edemko 18 Dec 2010, 18:25

Thank you.

Macro below was expected to show procedure name.
It does not.
As i know "match name params" denotes local constants.
That's why "display `name" used.
But "namename" visible instead of "p1p2".
Am i wrong here too?

Code:

macro proc [args]{
  common
    match name params, args>\{
      display `name
      define@proc name, <params
    \}
}


proc p1
endp

proc p2
endp

18 Dec 2010, 18:25

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8391
Location: Kraków, Poland

Tomasz Grysztar 18 Dec 2010, 18:54

` operator is processed by the outer macro, so it converts the "name" token into string. To make it processed by the inner macro (the "match" one) you need to escape it with backslash:

Code:

display \`name

Now it will convert into string the first token that is there after replacement of "name" with its matched value.

18 Dec 2010, 18:54

edemko

Joined: 18 Jul 2009
Posts: 549

edemko 19 Dec 2010, 07:33

appreciate that, thanks, final macro:

Code:

macro proc [args]{
  common
    match name params, args>\{
      if used \name
        db 0,'proc ',\`name,0
        define@proc \name, <\params
      end if
    \}
}

19 Dec 2010, 07:33

< 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