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			1014 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			1014 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
| {
 | |
|     $Id$
 | |
|     Copyright (c) 1996-98 by Florian Klaempfl
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| 
 | |
|     This unit implements an abstract asmoutput class for all processor types
 | |
| 
 | |
|     This program is free software; you can redistribute it and/or modify
 | |
|     it under the terms of the GNU General Public License as published by
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|     the Free Software Foundation; either version 2 of the License, or
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|     (at your option) any later version.
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| 
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|     This program is distributed in the hope that it will be useful,
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|     but WITHOUT ANY WARRANTY; without even the implied warranty of
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|     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|     GNU General Public License for more details.
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| 
 | |
|     You should have received a copy of the GNU General Public License
 | |
|     along with this program; if not, write to the Free Software
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|     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 | |
| 
 | |
|  ****************************************************************************
 | |
| }
 | |
| unit aasm;
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| 
 | |
|   interface
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| 
 | |
|     uses
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|        cobjects,files,globals;
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| 
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|     type
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| {$ifdef i386}
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|      {$ifndef VER0_99_5}
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|        bestreal = extended;
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|      {$else}
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|        bestreal = double;
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|      {$endif}
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| {$endif}
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| {$ifdef m68k}
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|        bestreal = real;
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| {$endif}
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|        pbestreal=^bestreal;
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| 
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|        tait = (
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|           ait_string,
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|           ait_label,
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|           ait_direct,
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|           ait_labeled_instruction,
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|           ait_comment,
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|           ait_instruction,
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|           ait_datablock,
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|           ait_symbol,
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|           ait_const_32bit,
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|           ait_const_16bit,
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|           ait_const_8bit,
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|           ait_const_symbol,
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|           ait_const_symbol_offset,
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|           ait_real_64bit,
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|           ait_real_32bit,
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|           ait_real_extended,
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|           ait_comp,
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|           ait_external,
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|           ait_align,
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|           ait_section,
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|           { the following is only used by the win32 version of the compiler }
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|           { and only the GNU AS Win32 is able to write it                   }
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|           ait_const_rva,
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|           ait_stabn,
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|           ait_stabs,
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|           ait_stab_function_name,
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|           ait_cut, { used to split into tiny assembler files }
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|           ait_regalloc,
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|           ait_regdealloc,
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|           ait_marker,
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|           { never used, makes insertation of new ait_ easier to type }
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|           ait_dummy);
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| 
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|      type
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|        { the short name makes typing easier }
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|        pai = ^tai;
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|        tai = object(tlinkedlist_item)
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|           typ      : tait;
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|           fileinfo : tfileposinfo;
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|           constructor init;
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|        end;
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| 
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|        pai_string = ^tai_string;
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|        tai_string = object(tai)
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|           str : pchar;
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|           { extra len so the string can contain an \0 }
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|           len : longint;
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|           constructor init(const _str : string);
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|           constructor init_pchar(_str : pchar);
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|           constructor init_length_pchar(_str : pchar;length : longint);
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|           destructor done;virtual;
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|        end;
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| 
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|        { generates a common label }
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|        pai_symbol = ^tai_symbol;
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|        tai_symbol = object(tai)
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|           name : pchar;
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|           is_global : boolean;
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|           constructor init(const _name : string);
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|           constructor init_global(const _name : string);
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|           destructor done;virtual;
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|        end;
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| 
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|        { external types defined for TASM }
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|        { EXT_ANY for search purposes     }
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|        texternal_typ = (EXT_ANY,EXT_NEAR, EXT_FAR, EXT_PROC, EXT_BYTE,
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|                         EXT_WORD, EXT_DWORD, EXT_CODEPTR, EXT_DATAPTR,
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|                         EXT_FWORD, EXT_PWORD, EXT_QWORD, EXT_TBYTE, EXT_ABS);
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| 
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|        { generates an symbol which is marked as external }
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|        pai_external = ^tai_external;
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|        tai_external = object(tai)
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|           name : pchar;
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|           exttyp : texternal_typ;
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|           constructor init(const _name : string;exttype : texternal_typ);
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|           destructor done; virtual;
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|        end;
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| 
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|      { type for a temporary label test if used for dispose of
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|        unnecessary labels }
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|        plabel = ^tlabel;
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|        tlabel = record
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|                   nb       : longint;
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|                   is_data  : boolean;
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|                   is_used  : boolean;
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|                   is_set   : boolean;
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|                   refcount : word;
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|                 end;
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| 
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|        pai_label = ^tai_label;
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|        tai_label = object(tai)
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|           l : plabel;
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|           constructor init(_l : plabel);
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|           destructor done; virtual;
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|        end;
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| 
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| 
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|        pai_direct = ^tai_direct;
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|        tai_direct = object(tai)
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|           str : pchar;
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|           constructor init(_str : pchar);
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|           destructor done; virtual;
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|        end;
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| 
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| 
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|        { to insert a comment into the generated assembler file }
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|        pai_asm_comment = ^tai_asm_comment;
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|        tai_asm_comment = object(tai)
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|           str : pchar;
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|           constructor init(_str : pchar);
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|           destructor done; virtual;
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|        end;
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| 
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| 
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|        { alignment for operator }
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|        pai_align = ^tai_align;
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|        tai_align = object(tai)
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|           aligntype: byte;   { 1 = no align, 2 = word align, 4 = dword align }
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|           op: byte;          { value to fill with - optional                 }
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|           constructor init(b:byte);
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|           constructor init_op(b: byte; use_op: byte);
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|           destructor done;virtual;
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|        end;
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| 
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| 
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|        tsection=(sec_none,sec_code,sec_data,sec_bss,sec_idata);
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| 
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|        { Insert a section/segment directive }
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|        pai_section = ^tai_section;
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|        tai_section = object(tai)
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|           sec      : tsection;
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|           idataidx : longint;
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|           constructor init(s : tsection);
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|           constructor init_idata(i:longint);
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|           destructor done;virtual;
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|        end;
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| 
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| 
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|        { generates an uninitializised data block }
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|        pai_datablock = ^tai_datablock;
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|        tai_datablock = object(tai)
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|           size : longint;
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|           name : pchar;
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|           is_global : boolean;
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|           constructor init(const _name : string;_size : longint);
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|           constructor init_global(const _name : string;_size : longint);
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|           destructor done; virtual;
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|        end;
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| 
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| 
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|        { generates a long integer (32 bit) }
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|        pai_const = ^tai_const;
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|        tai_const = object(tai)
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|           value : longint;
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|           constructor init_32bit(_value : longint);
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|           constructor init_16bit(_value : word);
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|           constructor init_8bit(_value : byte);
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|           constructor init_symbol(p : pchar);
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|           constructor init_rva(p : pchar);
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|           destructor done;virtual;
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|        end;
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| 
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|        pai_const_symbol_offset = ^tai_const_symbol_offset;
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|        tai_const_symbol_offset= object(tai)
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|           name : pchar;
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|           offset : longint;
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|           constructor init(p : pchar; l : longint);
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|           destructor done;virtual;
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|        end;
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| 
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|        { generates a double (64 bit real) }
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|        pai_double = ^tai_double;
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|        tai_double = object(tai)
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|           value : double;
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|           constructor init(_value : double);
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|        end;
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| 
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| 
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|        { generates an comp (integer over 64 bits) }
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|        pai_comp = ^tai_comp;
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|        tai_comp = object(tai)
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|           value : bestreal;
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|           constructor init(_value : bestreal);
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| {$ifdef i386}
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|           { usefull for 64 bits apps, maybe later  }
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|           { comp is not defined on m68k processors !! }
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|           constructor init_comp(_value : comp);
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| {$endif i386}
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|        end;
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| 
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| 
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|        { generates a single (32 bit real) }
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|        pai_single = ^tai_single;
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|        tai_single = object(tai)
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|           value : single;
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|           constructor init(_value : single);
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|        end;
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| 
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| 
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|        { generates an extended (80 bit real) }
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|        pai_extended = ^tai_extended;
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|        tai_extended = object(tai)
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|           value : bestreal;
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|           constructor init(_value : bestreal);
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|        end;
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| 
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| 
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|        { insert a cut to split into several smaller files }
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|        pai_cut = ^tai_cut;
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|        tai_cut = object(tai)
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|           endname : boolean;
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|           constructor init;
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|           constructor init_end;
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|        end;
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| 
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|        TMarker = (NoPropInfoStart, NoPropInfoEnd);
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|        pai_marker = ^tai_marker;
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|        tai_marker = object(tai)
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|          Kind: TMarker;
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|          Constructor init(_Kind: TMarker);
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|        end;
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| 
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| 
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| { for each processor define the best precision }
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| { bestreal is defined in globals }
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| {$ifdef i386}
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| const
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|        ait_bestreal = ait_real_extended;
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| type
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|        pai_bestreal = pai_extended;
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|        tai_bestreal = tai_extended;
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| {$endif i386}
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| {$ifdef m68k}
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| const
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|        ait_bestreal = ait_real_32bit;
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| type
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|        pai_bestreal = pai_single;
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|        tai_bestreal = tai_single;
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| {$endif m68k}
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| 
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| 
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|        paasmoutput = ^taasmoutput;
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|        taasmoutput = object(tlinkedlist)
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|                    function getlasttaifilepos : pfileposinfo;
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|                    end;
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| 
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|     var
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|     { temporary lists }
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|       exprasmlist,
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|     { default lists }
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| 
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|       datasegment,codesegment,bsssegment,
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|       internals,externals,debuglist,consts,
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|       importssection,exportssection,
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|       resourcesection,rttilist         : paasmoutput;
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| 
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|   { external symbols without repetition }
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|     function search_assembler_symbol(pl : paasmoutput;const _name : string;exttype : texternal_typ) : pai_external;
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|     procedure concat_external(const _name : string;exttype : texternal_typ);
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|     procedure concat_internal(const _name : string;exttype : texternal_typ);
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| 
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|   { label functions }
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|     const
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|       nextlabelnr : longint = 1;
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|       countlabelref : boolean = true;
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|     { convert label to string}
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|     function lab2str(l : plabel) : string;
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|     { make l as a new label }
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|     procedure getlabel(var l : plabel);
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|     { make l as a new label and flag is_data }
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|     procedure getdatalabel(var l : plabel);
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|     { frees the label if unused }
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|     procedure freelabel(var l : plabel);
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|     { make a new zero label }
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|     procedure getzerolabel(var l : plabel);
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|     { reset a label to a zero label }
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|     procedure setzerolabel(var l : plabel);
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|     {just get a label number }
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|     procedure getlabelnr(var l : longint);
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| 
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| 
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| implementation
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| 
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| uses
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|   strings,verbose,systems;
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| 
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| {****************************************************************************
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|                              TAI
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|  ****************************************************************************}
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| 
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|     constructor tai.init;
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|       begin
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|         fileinfo:=aktfilepos;
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|       end;
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| 
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| {****************************************************************************
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|                              TAI_SECTION
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|  ****************************************************************************}
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| 
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|     constructor tai_section.init(s : tsection);
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| 
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|       begin
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|          inherited init;
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|          typ:=ait_section;
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|          sec:=s;
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|          idataidx:=0;
 | |
|       end;
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| 
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|     constructor tai_section.init_idata(i:longint);
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| 
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|       begin
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|          inherited init;
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|          typ:=ait_section;
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|          sec:=sec_idata;
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|          idataidx:=i;
 | |
|       end;
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| 
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|     destructor tai_section.done;
 | |
| 
 | |
|       begin
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|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                              TAI_DATABLOCK
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_datablock.init(const _name : string;_size : longint);
 | |
| 
 | |
|       begin
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|          inherited init;
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|          typ:=ait_datablock;
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|          name:=strpnew(_name);
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|          concat_internal(_name,EXT_ANY);
 | |
|          size:=_size;
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|          is_global:=false;
 | |
|       end;
 | |
| 
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|     constructor tai_datablock.init_global(const _name : string;_size : longint);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_datablock;
 | |
|          name:=strpnew(_name);
 | |
|          concat_internal(_name,EXT_ANY);
 | |
|          size:=_size;
 | |
|          is_global:=true;
 | |
|       end;
 | |
| 
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|     destructor tai_datablock.done;
 | |
| 
 | |
|       begin
 | |
|          strdispose(name);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_SYMBOL
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_symbol.init(const _name : string);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_symbol;
 | |
|          name:=strpnew(_name);
 | |
|          concat_internal(_name,EXT_ANY);
 | |
|          is_global:=false;
 | |
|       end;
 | |
| 
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|     constructor tai_symbol.init_global(const _name : string);
 | |
| 
 | |
|       begin
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|          inherited init;
 | |
|          typ:=ait_symbol;
 | |
|          name:=strpnew(_name);
 | |
|          concat_internal(_name,EXT_ANY);
 | |
|          is_global:=true;
 | |
|       end;
 | |
| 
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|     destructor tai_symbol.done;
 | |
| 
 | |
|       begin
 | |
|          strdispose(name);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_EXTERNAL
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_external.init(const _name : string;exttype : texternal_typ);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_external;
 | |
|          exttyp:=exttype;
 | |
|          name:=strpnew(_name);
 | |
|       end;
 | |
| 
 | |
|     destructor tai_external.done;
 | |
| 
 | |
|       begin
 | |
|          strdispose(name);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_CONST
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_const.init_32bit(_value : longint);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_const_32bit;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
|     constructor tai_const.init_16bit(_value : word);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_const_16bit;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
|     constructor tai_const.init_8bit(_value : byte);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_const_8bit;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
|     constructor tai_const.init_symbol(p : pchar);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_const_symbol;
 | |
|          value:=longint(p);
 | |
|       end;
 | |
| 
 | |
|     constructor tai_const.init_rva(p : pchar);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_const_rva;
 | |
|          value:=longint(p);
 | |
|       end;
 | |
| 
 | |
|     destructor tai_const.done;
 | |
| 
 | |
|       begin
 | |
|          if typ=ait_const_symbol then
 | |
|            strdispose(pchar(value));
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_CONST_SYMBOL_OFFSET
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_const_symbol_offset.init(p : pchar; l : longint);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_const_symbol_offset;
 | |
|          name:=p;
 | |
|          offset:=l;
 | |
|       end;
 | |
| 
 | |
|     destructor tai_const_symbol_offset.done;
 | |
| 
 | |
|       begin
 | |
|          strdispose(name);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_DOUBLE
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_double.init(_value : double);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_real_64bit;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_SINGLE
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_single.init(_value : single);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_real_32bit;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_EXTENDED
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_extended.init(_value : bestreal);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_real_extended;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_COMP
 | |
|  ****************************************************************************}
 | |
| 
 | |
|     constructor tai_comp.init(_value : bestreal);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_comp;
 | |
|          value:=_value;
 | |
|       end;
 | |
| 
 | |
| {$ifdef i386}
 | |
|     constructor tai_comp.init_comp(_value : comp);
 | |
| 
 | |
|       begin
 | |
|          inherited init;
 | |
|          typ:=ait_comp;
 | |
|          value:=_value;
 | |
|       end;
 | |
| {$endif i386}
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_STRING
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      constructor tai_string.init(const _str : string);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_string;
 | |
|           getmem(str,length(_str)+1);
 | |
|           strpcopy(str,_str);
 | |
|           len:=length(_str);
 | |
|        end;
 | |
| 
 | |
|      constructor tai_string.init_pchar(_str : pchar);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_string;
 | |
|           str:=_str;
 | |
|           len:=strlen(_str);
 | |
|        end;
 | |
| 
 | |
|     constructor tai_string.init_length_pchar(_str : pchar;length : longint);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_string;
 | |
|           str:=_str;
 | |
|           len:=length;
 | |
|        end;
 | |
| 
 | |
|     destructor tai_string.done;
 | |
| 
 | |
|       begin
 | |
|          { you can have #0 inside the strings so }
 | |
|          if str<>nil then
 | |
|            freemem(str,len+1);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                                TAI_LABEL
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      constructor tai_label.init(_l : plabel);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_label;
 | |
|           l:=_l;
 | |
|           l^.is_set:=true;
 | |
|        end;
 | |
| 
 | |
|     destructor tai_label.done;
 | |
| 
 | |
|       begin
 | |
|          if (l^.refcount>0) then
 | |
|          { can now be disposed by a tai_labeled instruction !! }
 | |
|            l^.is_set:=false
 | |
|          else
 | |
|            dispose(l);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                               TAI_DIRECT
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      constructor tai_direct.init(_str : pchar);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_direct;
 | |
|           str:=_str;
 | |
|        end;
 | |
| 
 | |
|     destructor tai_direct.done;
 | |
| 
 | |
|       begin
 | |
|          strdispose(str);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|           TAI_ASM_COMMENT  comment to be inserted in the assembler file
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      constructor tai_asm_comment.init(_str : pchar);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_comment;
 | |
|           str:=_str;
 | |
|        end;
 | |
| 
 | |
|     destructor tai_asm_comment.done;
 | |
| 
 | |
|       begin
 | |
|          strdispose(str);
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                               TAI_ALIGN
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      constructor tai_align.init(b: byte);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_align;
 | |
|           if b in [1,2,4,8,16] then
 | |
|            aligntype := b
 | |
|           else
 | |
|            aligntype := 1;
 | |
|           op:=0;
 | |
|        end;
 | |
| 
 | |
| 
 | |
|      constructor tai_align.init_op(b: byte; use_op: byte);
 | |
| 
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_align;
 | |
|           if b in [1,2,4,8,16] then
 | |
|            aligntype := b
 | |
|           else
 | |
|            aligntype := 1;
 | |
|            op:=use_op;
 | |
|        end;
 | |
| 
 | |
|     destructor tai_align.done;
 | |
| 
 | |
|       begin
 | |
|          inherited done;
 | |
|       end;
 | |
| 
 | |
| {****************************************************************************
 | |
|                               TAI_CUT
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      constructor tai_cut.init;
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_cut;
 | |
|           endname:=false;
 | |
|        end;
 | |
| 
 | |
| 
 | |
|      constructor tai_cut.init_end;
 | |
|        begin
 | |
|           inherited init;
 | |
|           typ:=ait_cut;
 | |
|           endname:=true;
 | |
|        end;
 | |
| 
 | |
| 
 | |
| {****************************************************************************
 | |
|                              Tai_Marker
 | |
|  ****************************************************************************}
 | |
| 
 | |
|      Constructor Tai_Marker.Init(_Kind: TMarker);
 | |
|      Begin
 | |
|        Inherited Init;
 | |
|        typ := ait_marker;
 | |
|        Kind := _Kind;
 | |
|      End;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                            External Helpers
 | |
| *****************************************************************************}
 | |
| 
 | |
|     function search_assembler_symbol(pl : paasmoutput;const _name : string;exttype : texternal_typ) : pai_external;
 | |
|       var
 | |
|          p : pai;
 | |
|       begin
 | |
|          search_assembler_symbol:=nil;
 | |
|          if pl=nil then
 | |
|            internalerror(2001)
 | |
|          else
 | |
|            begin
 | |
|               p:=pai(pl^.first);
 | |
|               while (p<>nil) and
 | |
|                     (p<>pai(pl^.last)) do
 | |
|                 { if we get the same name with a different typ }
 | |
|                 { there is probably an error                   }
 | |
|                 if (p^.typ=ait_external) and
 | |
|                    ((exttype=EXT_ANY) or (pai_external(p)^.exttyp=exttype)) and
 | |
|                    (strpas(pai_external(p)^.name)=_name) then
 | |
|                   begin
 | |
|                      search_assembler_symbol:=pai_external(p);
 | |
|                      exit;
 | |
|                   end
 | |
|                 else
 | |
|                   p:=pai(p^.next);
 | |
|               if (p<>nil) and
 | |
|                  (p^.typ=ait_external) and
 | |
|                  (pai_external(p)^.exttyp=exttype) and
 | |
|                  (strpas(pai_external(p)^.name)=_name) then
 | |
|                 begin
 | |
|                    search_assembler_symbol:=pai_external(p);
 | |
|                    exit;
 | |
|                 end;
 | |
|            end;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     { insert each need external only once }
 | |
|     procedure concat_external(const _name : string;exttype : texternal_typ);
 | |
|       begin
 | |
|         if not target_asm.externals then
 | |
|          exit;
 | |
|         if search_assembler_symbol(externals,_name,exttype)=nil then
 | |
|          externals^.concat(new(pai_external,init(_name,exttype)));
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     { insert each need internal only once }
 | |
|     procedure concat_internal(const _name : string;exttype : texternal_typ);
 | |
|       begin
 | |
|         if not target_asm.externals then
 | |
|          exit;
 | |
|         if search_assembler_symbol(internals,_name,exttype)=nil then
 | |
|          internals^.concat(new(pai_external,init(_name,exttype)));
 | |
|       end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                               Label Helpers
 | |
| *****************************************************************************}
 | |
| 
 | |
|     function lab2str(l : plabel) : string;
 | |
|       begin
 | |
|          if (l=nil) or (l^.nb=0) then
 | |
|            begin
 | |
| {$ifdef EXTDEBUG}
 | |
|              lab2str:='ILLEGAL'
 | |
| {$else EXTDEBUG}
 | |
|              internalerror(2000);
 | |
| {$endif EXTDEBUG}
 | |
|            end
 | |
|          else
 | |
|            begin
 | |
|              if (l^.is_data) and (cs_smartlink in aktmoduleswitches) then
 | |
|               lab2str:='_$'+current_module^.modulename^+'$_L'+tostr(l^.nb)
 | |
|              else
 | |
|               lab2str:=target_asm.labelprefix+tostr(l^.nb);
 | |
|            end;
 | |
|          { inside the WriteTree we must not count the refs PM }
 | |
| {$ifndef HEAPTRC}
 | |
|          if countlabelref then
 | |
|            inc(l^.refcount);
 | |
| {$endif HEAPTRC}
 | |
|          l^.is_used:=true;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure getlabel(var l : plabel);
 | |
|       begin
 | |
|          new(l);
 | |
|          l^.nb:=nextlabelnr;
 | |
|          l^.is_used:=false;
 | |
|          l^.is_set:=false;
 | |
|          l^.is_data:=false;
 | |
|          l^.refcount:=0;
 | |
|          inc(nextlabelnr);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure getdatalabel(var l : plabel);
 | |
|       begin
 | |
|          new(l);
 | |
|          l^.nb:=nextlabelnr;
 | |
|          l^.is_used:=false;
 | |
|          l^.is_set:=false;
 | |
|          l^.is_data:=true;
 | |
|          l^.refcount:=0;
 | |
|          inc(nextlabelnr);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure freelabel(var l : plabel);
 | |
|       begin
 | |
|          if (l<>nil) and (not l^.is_set) and (not l^.is_used) then
 | |
|            dispose(l);
 | |
|          l:=nil;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure setzerolabel(var l : plabel);
 | |
|       begin
 | |
|         with l^ do
 | |
|          begin
 | |
|            nb:=0;
 | |
|            is_used:=false;
 | |
|            is_set:=false;
 | |
|            is_data:=false;
 | |
|            refcount:=0;
 | |
|          end;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure getzerolabel(var l : plabel);
 | |
|       begin
 | |
|          new(l);
 | |
|          l^.nb:=0;
 | |
|          l^.is_used:=false;
 | |
|          l^.is_set:=false;
 | |
|          l^.is_data:=false;
 | |
|          l^.refcount:=0;
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure getlabelnr(var l : longint);
 | |
|       begin
 | |
|          l:=nextlabelnr;
 | |
|          inc(nextlabelnr);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     function taasmoutput.getlasttaifilepos : pfileposinfo;
 | |
|       begin
 | |
|          if assigned(last) then
 | |
|            getlasttaifilepos:=@pai(last)^.fileinfo
 | |
|          else
 | |
|            getlasttaifilepos:=nil;
 | |
|       end;
 | |
| 
 | |
| end.
 | |
| {
 | |
|   $Log$
 | |
|   Revision 1.23  1998-10-14 15:56:37  pierre
 | |
|     * all references to comp suppressed for m68k
 | |
| 
 | |
|   Revision 1.22  1998/10/12 12:20:38  pierre
 | |
|     + added tai_const_symbol_offset
 | |
|       for r : pointer = @var.field;
 | |
|     * better message for different arg names on implementation
 | |
|       of function
 | |
| 
 | |
|   Revision 1.21  1998/10/08 17:17:07  pierre
 | |
|     * current_module old scanner tagged as invalid if unit is recompiled
 | |
|     + added ppheap for better info on tracegetmem of heaptrc
 | |
|       (adds line column and file index)
 | |
|     * several memory leaks removed ith help of heaptrc !!
 | |
| 
 | |
|   Revision 1.20  1998/10/06 17:16:31  pierre
 | |
|     * some memory leaks fixed (thanks to Peter for heaptrc !)
 | |
| 
 | |
|   Revision 1.19  1998/10/01 20:19:11  jonas
 | |
|     + ait_marker support
 | |
| 
 | |
|   Revision 1.18  1998/09/20 17:11:25  jonas
 | |
|     * released REGALLOC
 | |
| 
 | |
|   Revision 1.17  1998/09/07 18:33:31  peter
 | |
|     + smartlinking for win95 imports
 | |
| 
 | |
|   Revision 1.16  1998/09/03 17:08:37  pierre
 | |
|     * better lines for stabs
 | |
|       (no scroll back to if before else part
 | |
|       no return to case line at jump outside case)
 | |
|     + source lines also if not in order
 | |
| 
 | |
|   Revision 1.15  1998/08/11 15:31:36  peter
 | |
|     * write extended to ppu file
 | |
|     * new version 0.99.7
 | |
| 
 | |
|   Revision 1.14  1998/08/10 23:56:03  peter
 | |
|     * fixed extended writing
 | |
| 
 | |
|   Revision 1.13  1998/08/10 14:49:33  peter
 | |
|     + localswitches, moduleswitches, globalswitches splitting
 | |
| 
 | |
|   Revision 1.12  1998/07/14 14:46:36  peter
 | |
|     * released NEWINPUT
 | |
| 
 | |
|   Revision 1.11  1998/07/07 11:19:50  peter
 | |
|     + NEWINPUT for a better inputfile and scanner object
 | |
| 
 | |
|   Revision 1.10  1998/06/08 22:59:41  peter
 | |
|     * smartlinking works for win32
 | |
|     * some defines to exclude some compiler parts
 | |
| 
 | |
|   Revision 1.9  1998/06/04 23:51:26  peter
 | |
|     * m68k compiles
 | |
|     + .def file creation moved to gendef.pas so it could also be used
 | |
|       for win32
 | |
| 
 | |
|   Revision 1.8  1998/05/23 01:20:53  peter
 | |
|     + aktasmmode, aktoptprocessor, aktoutputformat
 | |
|     + smartlink per module $SMARTLINK-/+ (like MMX) and moved to aktswitches
 | |
|     + $LIBNAME to set the library name where the unit will be put in
 | |
|     * splitted cgi386 a bit (codeseg to large for bp7)
 | |
|     * nasm, tasm works again. nasm moved to ag386nsm.pas
 | |
| 
 | |
|   Revision 1.7  1998/05/07 00:16:59  peter
 | |
|     * smartlinking for sets
 | |
|     + consts labels are now concated/generated in hcodegen
 | |
|     * moved some cpu code to cga and some none cpu depended code from cga
 | |
|       to tree and hcodegen and cleanup of hcodegen
 | |
|     * assembling .. output reduced for smartlinking ;)
 | |
| 
 | |
|   Revision 1.6  1998/05/06 18:36:53  peter
 | |
|     * tai_section extended with code,data,bss sections and enumerated type
 | |
|     * ident 'compiled by FPC' moved to pmodules
 | |
|     * small fix for smartlink
 | |
| 
 | |
|   Revision 1.5  1998/05/01 07:43:52  florian
 | |
|     + basics for rtti implemented
 | |
|     + switch $m (generate rtti for published sections)
 | |
| 
 | |
|   Revision 1.4  1998/04/29 10:33:40  pierre
 | |
|     + added some code for ansistring (not complete nor working yet)
 | |
|     * corrected operator overloading
 | |
|     * corrected nasm output
 | |
|     + started inline procedures
 | |
|     + added starstarn : use ** for exponentiation (^ gave problems)
 | |
|     + started UseTokenInfo cond to get accurate positions
 | |
| 
 | |
|   Revision 1.3  1998/04/27 23:10:27  peter
 | |
|     + new scanner
 | |
|     * $makelib -> if smartlink
 | |
|     * small filename fixes pmodule.setfilename
 | |
|     * moved import from files.pas -> import.pas
 | |
| 
 | |
|   Revision 1.2  1998/04/09 15:46:37  florian
 | |
|     + register allocation tracing stuff added
 | |
| 
 | |
| }
 | 
