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bitRAKE



Joined: 21 Jul 2003
Posts: 2915
Location: [RSP+8*5]
bitRAKE
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Want to parse FASM syntax?

What if FASM changes?

The solution is to use the FASM source code to generate the keyword file needed.
The minimalist way to do that is below:
Code:
virtual at 0

; SYSTEM.INC interface:

        predefinitions:
 get_environment_variable:
       make_timestamp:
 display_block:
  fatal_error:
    assembler_error:

    create:
 open:
   lseek:
  read:
   write:
  close:

  include '..\source\version.inc'

  include '..\source\errors.inc'
  include '..\source\expressi.inc'
  include '..\source\preproce.inc'
  include '..\source\parser.inc'
  include '..\source\assemble.inc'
  include '..\source\formats.inc'
  include '..\source\x86_64.inc'

  include '..\source\messages.inc'

  include '..\source\variable.inc'

end virtual

  include '..\source\tables.inc'    
...then the data can be accessed directly:
Code:
; macro_directives:
; preprocessor_directives:
;      length byte ?
;      string byte length dup(?)
;      func   word ?
;
; see get_directive in FASM source file "preproce.inc"

macro_directives.itterator:
 xor eax,eax
        lea esi,[macro_directives]
   jmp preprocessor_directives.itterator.0

preprocessor_directives.itterator:
       xor eax,eax
        lea esi,[preprocessor_directives]
  .0:   lodsb
       xchg ecx,eax
        jecxz .x
    lea eax,[esi+ecx+1]
 mov byte [esi+ecx],0
        xchg eax,esi
        ; EAX = string, null terminated
     ; ECX = length in bytes
     call ebx
    ; ESI needs to be preserved
 ; EAX must be zero to continue
      test eax,eax
        jz .0
  .x:   retn    
...any ideas?

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Post 04 Jan 2009, 06:54
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