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Index > Main > display of numbers, filenames and line numbers

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lazer1



Joined: 24 Jan 2006
Posts: 185
lazer1
with fasm's display directive everything is regarded as a string and its tricky to echo numbers.

I think there needs to be a directive to echo numbers, its a bit severe for users to have to hack the echo of numbers

also there needs to be a way to echo filename and line_number of the display command, eg with C there are 2 inbuilt symbols __FILE__ and __LINE__

perhaps if these could be implemented for fasm,

envisioned usage example is:

Code:

macro int xyz*
  {
  display 'int used with argument '
  display_hexadecimal xyz
  display 'in file ', __FILE__, 'line number ', __LINE__, 0ah
  int xyz
  }

    


this macro will intercept any uses of the int asm instruction and
will echo which file, line number and the argument of int Razz
Post 03 Apr 2011, 16:24
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edfed



Joined: 20 Feb 2006
Posts: 4240
Location: 2018
edfed
what's the need for this?
Post 03 Apr 2011, 16:26
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17475
Location: In your JS exploiting you and your system
revolution
There are already some threads around here that have patches to use %L to give the current line number (as a number, not a string). The filename would be a little bit trickier (it is a string) but is probably also doable.
Post 03 Apr 2011, 16:33
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lazer1



Joined: 24 Jan 2006
Posts: 185
lazer1
edfed wrote:
what's the need for this?


the need is to catch risky constructs,

eg I wanted to use single stepping, but int switches off

single stepping,

thus I needed to locate where int was used,

I need fasm to display the file and line number and the

interrupt vector.

but I dont want to know about usages which arent referenced,

eg commented out etc which word search would locate.






its quite basic functionality, and should be built in,

furthermore it should be quite straightforward to implement

within fasm. implementing it in macros is highly inefficient


look at C's printf, that has strings, characters, ints, hexadecimal etc

YOU tell me whats the need for all that in C Laughing


printf( "arguments %s, %x used in file %s line %d\n",
string_variable, number_variable, __FILE__, __LINE__ ) ;

where C is a bit limited is echoing things at compile time

the way fasm display is used.

when I use this stuff with C I have to catch the problems at run time,

with fasm I can catch such things at compile time which is more useful.
Post 05 Apr 2011, 11:15
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JohnFound



Joined: 16 Jun 2003
Posts: 3502
Location: Bulgaria
JohnFound
FreshLib have advanced "disp" macro that displays numbers as well as strings.
You can find the source and documentation here.
Check the reference.
Post 05 Apr 2011, 12:58
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