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456 lines
11 KiB
ObjectPascal
456 lines
11 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Peter Vreman and Florian Klaempfl
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Convert i386ins.dat from Nasm to a .inc file for usage with
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the Free pascal compiler
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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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.
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**********************************************************************}
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program nasmconv;
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const
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Version = '0.99.13';
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var
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s : string;
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i : longint;
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{$ifndef FPC}
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procedure readln(var t:text;var s:string);
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var
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c : char;
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i : longint;
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begin
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c:=#0;
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i:=0;
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while (not eof(t)) and (c<>#10) do
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begin
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read(t,c);
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if c<>#10 then
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begin
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inc(i);
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s[i]:=c;
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end;
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end;
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if (i>0) and (s[i]=#13) then
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dec(i);
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s[0]:=chr(i);
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end;
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{$endif}
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function lower(const s : string) : string;
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{
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return lowercased string of s
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}
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var
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i : longint;
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begin
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for i:=1 to length(s) do
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if s[i] in ['A'..'Z'] then
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lower[i]:=char(byte(s[i])+32)
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else
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lower[i]:=s[i];
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lower[0]:=s[0];
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end;
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function Replace(var s:string;const s1,s2:string):boolean;
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var
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i : longint;
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begin
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i:=pos(s1,s);
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if i>0 then
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begin
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Delete(s,i,length(s1));
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Insert(s2,s,i);
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Replace:=true;
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end
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else
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Replace:=false;
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end;
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function formatop(s:string):string;
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const
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replaces=19;
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replacetab : array[1..replaces,1..2] of string[32]=(
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(':',' or ot_colon'),
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('mem8','mem or ot_bits8'),
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('mem16','mem or ot_bits16'),
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('mem32','mem or ot_bits32'),
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('mem64','mem or ot_bits64'),
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('mem80','mem or ot_bits80'),
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('mem','memory'),
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('memory_offs','mem_offs'),
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('imm8','imm or ot_bits8'),
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('imm16','imm or ot_bits16'),
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('imm32','imm or ot_bits32'),
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('imm64','imm or ot_bits64'),
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('imm80','imm or ot_bits80'),
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('imm','immediate'),
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('rm8','regmem or ot_bits8'),
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('rm16','regmem or ot_bits16'),
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('rm32','regmem or ot_bits32'),
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('rm64','regmem or ot_bits64'),
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('rm80','regmem or ot_bits80')
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);
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var
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i : longint;
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begin
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for i:=1to replaces do
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replace(s,replacetab[i,1],replacetab[i,2]);
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formatop:=s;
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end;
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function readnumber : longint;
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var
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base : longint;
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result : longint;
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begin
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result:=0;
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if s[i]='\' then
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begin
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base:=8;
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inc(i);
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if s[i]='x' then
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begin
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base:=16;
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inc(i);
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end;
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end
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else
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base:=10;
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s[i]:=upcase(s[i]);
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while s[i] in ['0'..'9','A'..'F'] do
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begin
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case s[i] of
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'0'..'9':
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result:=result*base+ord(s[i])-ord('0');
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'A'..'F':
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result:=result*base+ord(s[i])-ord('A')+10;
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end;
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inc(i);
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end;
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readnumber:=result;
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end;
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function tostr(l : longint) : string;
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var
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hs : string;
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begin
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str(l,hs);
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tostr:=hs;
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end;
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function readstr : string;
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var
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result : string;
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begin
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result:='';
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while (s[i] in ['0'..'9','A'..'Z','a'..'z','_']) and (i<=length(s)) do
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begin
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result:=result+s[i];
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inc(i);
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end;
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readstr:=result;
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end;
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procedure skipspace;
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begin
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while (s[i] in [' ',#9]) do
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inc(i);
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end;
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procedure openinc(var f:text;const fn:string);
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begin
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writeln('creating ',fn);
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assign(f,fn);
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rewrite(f);
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writeln(f,'{ don''t edit, this file is generated from i386ins.dat }');
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writeln(f,'(');
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end;
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procedure closeinc(var f:text);
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begin
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writeln(f);
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writeln(f,');');
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close(f);
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end;
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var
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attsuffix,
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hs : string;
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j : longint;
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firstopcode,
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first : boolean;
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maxinfolen,
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code : byte;
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insns : longint;
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attsuffile,propfile,opfile,
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nopfile,attfile,intfile,
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infile,insfile : text;
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{ instruction fields }
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last,
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ops : longint;
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intopcode,
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attopcode,
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opcode,
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codes,
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flags : string;
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optypes : array[1..3] of string;
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begin
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writeln('Nasm Instruction Table Converter Version ',Version);
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insns:=0;
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maxinfolen:=0;
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{ open dat file }
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assign(infile,'i386ins.dat');
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reset(infile);
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{ create inc files }
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openinc(insfile,'i386tab.inc');
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openinc(opfile,'i386op.inc');
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assign(nopfile,'i386nop.inc');
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rewrite(nopfile);
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writeln(nopfile,'{ don''t edit, this file is generated from i386ins.dat }');
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openinc(attfile,'i386att.inc');
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openinc(attsuffile,'i386atts.inc');
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openinc(intfile,'i386int.inc');
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openinc(propfile,'i386prop.inc');
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first:=true;
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opcode:='';
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firstopcode:=true;
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while not(eof(infile)) do
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begin
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{ handle comment }
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readln(infile,s);
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while (s[1]=' ') do
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delete(s,1,1);
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if (s='') or (s[1]=';') then
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continue;
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if (s[1]='[') then
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begin
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i:=pos(',',s);
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j:=pos(']',s);
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if i=0 then
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begin
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opcode:='A_'+Copy(s,2,j-2);
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intopcode:=Copy(s,2,j-2);
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{ Conditional }
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if (intopcode[length(intopcode)]='c') and
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(intopcode[length(intopcode)-1]='c') then
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dec(byte(intopcode[0]),2);
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attopcode:=intopcode;
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attsuffix:='attsufNONE';
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end
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else
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begin
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opcode:='A_'+Copy(s,2,i-2);
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intopcode:=Copy(s,2,i-2);
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{ intel conditional }
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if (intopcode[length(intopcode)]='c') and
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(intopcode[length(intopcode)-1]='c') then
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dec(byte(intopcode[0]),2);
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attopcode:=Copy(s,i+1,j-i-1);
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{ att Suffix }
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case attopcode[length(attopcode)] of
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'X' :
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begin
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dec(attopcode[0]);
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attsuffix:='attsufINT';
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end;
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'F' :
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begin
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dec(attopcode[0]);
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attsuffix:='attsufFPU';
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end;
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'R' :
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begin
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dec(attopcode[0]);
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attsuffix:='attsufFPUint';
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end;
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else
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attsuffix:='attsufNONE';
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end;
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{ att Conditional }
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if (attopcode[length(attopcode)]='C') and
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(attopcode[length(attopcode)-1]='C') then
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dec(byte(attopcode[0]),2);
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end;
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intopcode:=Lower(intopcode);
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attopcode:=Lower(attopcode);
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if firstopcode then
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firstopcode:=false
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else
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begin
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writeln(opfile,',');
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writeln(attfile,',');
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writeln(attsuffile,',');
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writeln(intfile,',');
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writeln(propfile,',');
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end;
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write(opfile,opcode);
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write(intfile,'''',intopcode,'''');
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write(attfile,'''',attopcode,'''');
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write(attsuffile,attsuffix);
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{ read the next line which contains the Change options }
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repeat
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readln(infile,s);
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until eof(infile) or ((s<>'') and (s[1]<>';'));
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write(propfile,'(Ch: ',s,')');
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continue;
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end;
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{ we must have an opcode }
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if opcode='' then
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runerror(234);
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{ clear }
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ops:=0;
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optypes[1]:='';
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optypes[2]:='';
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optypes[3]:='';
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codes:='';
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flags:='';
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{ ops and optypes }
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i:=1;
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repeat
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hs:=readstr;
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if (hs='void') or (hs='ignore') then
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break;
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inc(ops);
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optypes[ops]:=optypes[ops]+'ot_'+formatop(hs);
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if s[i]=':' then
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begin
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inc(i);
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optypes[ops]:=optypes[ops]+' or ot_'+formatop(readstr);
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end;
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while s[i]='|' do
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begin
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inc(i);
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optypes[ops]:=optypes[ops]+' or ot_'+formatop(readstr);
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end;
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if s[i]=',' then
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inc(i)
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else
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break;
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until false;
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for j:=1 to 3-ops do
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optypes[3-j+1]:='ot_none';
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{ codes }
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skipspace;
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j:=0;
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last:=0;
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if s[i] in ['\','0'..'9'] then
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begin
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while not(s[i] in [' ',#9]) do
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begin
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code:=readnumber;
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{ for some codes we want also to change the optypes, but not
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if the last byte was a 1 then this byte belongs to a direct
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copy }
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if last<>1 then
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begin
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case code of
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12,13,14 :
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optypes[code-11]:=optypes[code-11]+' or ot_signed';
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end;
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end;
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codes:=codes+'#'+tostr(code);
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last:=code;
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inc(j);
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end;
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end
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else
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begin
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readstr;
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codes:='#0';
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end;
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if j>maxinfolen then
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maxinfolen:=j;
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{ flags }
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skipspace;
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while not(s[i] in [' ',#9,#13,#10]) and (i<=length(s)) do
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begin
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hs:=readstr;
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if hs='ignore' then
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begin
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flags:='0';
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break;
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end;
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if hs<>'ND' then
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begin
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if flags<>'' then
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flags:=flags+' or ';
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flags:=flags+'if_'+lower(hs);
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end;
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if (s[i]=',') and (i<=length(s)) then
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inc(i)
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else
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break;
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end;
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{ write instruction }
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if not(first) then
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writeln(insfile,',')
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else
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first:=false;
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writeln(insfile,' (');
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writeln(insfile,' opcode : ',opcode,';');
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writeln(insfile,' ops : ',ops,';');
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writeln(insfile,' optypes : (',optypes[1],',',optypes[2],',',optypes[3],');');
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writeln(insfile,' code : ',codes,';');
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writeln(insfile,' flags : ',flags);
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write(insfile,' )');
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inc(insns);
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end;
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close(infile);
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closeinc(insfile);
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closeinc(intfile);
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closeinc(attfile);
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closeinc(attsuffile);
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closeinc(opfile);
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writeln(nopfile,insns,';');
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close(nopfile);
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closeinc(propfile);
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writeln(insns,' nodes procesed (maxinfolen=',maxinfolen,')');
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end.
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{
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$Log$
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Revision 1.10 2000-05-09 06:39:17 pierre
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+ generate also i386nop.inc containing the number of opcodes
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Revision 1.9 2000/04/04 13:44:03 pierre
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+ R suffix for integer FPU operations
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Revision 1.8 2000/02/09 13:23:11 peter
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* log truncated
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Revision 1.7 2000/01/28 09:41:39 peter
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* fixed fpu suffix parsing for att reader
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Revision 1.6 2000/01/07 01:15:01 peter
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* updated copyright to 2000
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Revision 1.5 1999/10/28 09:47:45 peter
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* update to use i386ins.dat
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Revision 1.4 1999/10/27 16:06:52 peter
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* updated for new layout
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Revision 1.3 1999/08/12 14:36:09 peter
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+ KNI instructions
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} |