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diff --git a/compiler/arm/itcpugas.pas b/compiler/arm/itcpugas.pas
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+{
+    Copyright (c) 1998-2002 by Florian Klaempfl
+
+    This unit contains the ARM GAS instruction tables
+
+    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
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ ****************************************************************************
+}
+unit itcpugas;
+
+{$i fpcdefs.inc}
+
+interface
+
+  uses
+    cpubase,cgbase;
+
+
+  const
+    { Standard opcode string table (for each tasmop enumeration). The
+      opcode strings should conform to the names as defined by the
+      processor manufacturer.
+    }
+    gas_op2str : op2strtable = {$i armatt.inc}
+
+    function gas_regnum_search(const s:string):Tregister;
+    function gas_regname(r:Tregister):string;
+
+
+implementation
+
+    uses
+      cutils,verbose;
+
+    const
+      gas_regname_table : array[tregisterindex] of string[7] = (
+        {$i rarmstd.inc}
+      );
+
+      gas_regname_index : array[tregisterindex] of tregisterindex = (
+        {$i rarmsri.inc}
+      );
+
+    function findreg_by_gasname(const s:string):tregisterindex;
+      var
+        i,p : tregisterindex;
+      begin
+        {Binary search.}
+        p:=0;
+        i:=regnumber_count_bsstart;
+        repeat
+          if (p+i<=high(tregisterindex)) and (gas_regname_table[gas_regname_index[p+i]]<=s) then
+            p:=p+i;
+          i:=i shr 1;
+        until i=0;
+        if gas_regname_table[gas_regname_index[p]]=s then
+          findreg_by_gasname:=gas_regname_index[p]
+        else
+          findreg_by_gasname:=0;
+      end;
+
+
+    function gas_regnum_search(const s:string):Tregister;
+      begin
+        result:=regnumber_table[findreg_by_gasname(s)];
+      end;
+
+
+    function gas_regname(r:Tregister):string;
+      var
+        p : tregisterindex;
+      begin
+        p:=findreg_by_number(r);
+        if p<>0 then
+          result:=gas_regname_table[p]
+        else
+          result:=generic_regname(r);
+      end;
+
+end.