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{
Copyright (c) 1998-2002 by Florian Klaempfl
This unit contains the i386 AT&T 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;
{$i fpcdefs.inc}
interface
uses
cgbase,cpubase;
type
TAttSuffix = (AttSufNONE,AttSufINT,AttSufFPU,AttSufFPUint,AttSufINTdual);
const
{$ifdef x86_64}
{x86att.inc contains the name for each x86-64 mnemonic}
gas_op2str:op2strtable={$i x8664att.inc}
gas_needsuffix:array[tasmop] of TAttSuffix={$i x8664ats.inc}
{$else x86_64}
{x86att.inc contains the name for each i386 mnemonic}
gas_op2str:op2strtable={$i i386att.inc}
gas_needsuffix:array[tasmop] of TAttSuffix={$i i386atts.inc}
{$endif x86_64}
{$ifdef x86_64}
gas_opsize2str : array[topsize] of string[2] = ('',
'b','w','l','q','bw','bl','wl','bq','wq','lq',
's','l','q',
's','l','t','v','x',
'd',
'','','',
't',
''
);
{ suffix-to-opsize conversion tables, used in asmreadrer }
{ !! S_LQ excluded: movzlq does not exist, movslq is processed
as a separate instruction w/o suffix (aka movsxd), and there are
no more instructions needing it. }
att_sizesuffixstr : array[0..11] of string[2] = (
'','BW','BL','WL','BQ','WQ',{'LQ',}'B','W','L','S','Q','T'
);
att_sizesuffix : array[0..11] of topsize = (
S_NO,S_BW,S_BL,S_WL,S_BQ,S_WQ,{S_LQ,}S_B,S_W,S_L,S_NO,S_Q,S_NO
);
att_sizefpusuffix : array[0..11] of topsize = (
S_NO,S_NO,S_NO,S_NO,S_NO,S_NO,{S_NO,}S_NO,S_NO,S_FL,S_FS,S_NO,S_FX
);
att_sizefpuintsuffix : array[0..11] of topsize = (
S_NO,S_NO,S_NO,S_NO,S_NO,S_NO,{S_NO,}S_NO,S_NO,S_IL,S_IS,S_IQ,S_NO
);
{$else x86_64}
gas_opsize2str : array[topsize] of string[2] = ('',
'b','w','l','q','bw','bl','wl',
's','l','q',
's','l','t','v','',
'd',
'','','',
't',
''
);
{ suffix-to-opsize conversion tables, used in asmreadrer }
att_sizesuffixstr : array[0..9] of string[2] = (
'','BW','BL','WL','B','W','L','S','Q','T'
);
att_sizesuffix : array[0..9] of topsize = (
S_NO,S_BW,S_BL,S_WL,S_B,S_W,S_L,S_NO,S_NO,S_NO
);
att_sizefpusuffix : array[0..9] of topsize = (
S_NO,S_NO,S_NO,S_NO,S_NO,S_NO,S_FL,S_FS,S_NO,S_FX
);
att_sizefpuintsuffix : array[0..9] of topsize = (
S_NO,S_NO,S_NO,S_NO,S_NO,S_NO,S_IL,S_IS,S_IQ,S_NO
);
{$endif x86_64}
function gas_regnum_search(const s:string):Tregister;
function gas_regname(r:Tregister):string;
implementation
uses
cutils,verbose;
const
{$ifdef x86_64}
att_regname_table : array[tregisterindex] of string[7] = (
{r8664att.inc contains the AT&T name of each register.}
{$i r8664att.inc}
);
att_regname_index : array[tregisterindex] of tregisterindex = (
{r8664ari.inc contains an index which sorts att_regname_table by
ATT name.}
{$i r8664ari.inc}
);
{$else x86_64}
att_regname_table : array[tregisterindex] of string[7] = (
{r386att.inc contains the AT&T name of each register.}
{$i r386att.inc}
);
att_regname_index : array[tregisterindex] of tregisterindex = (
{r386ari.inc contains an index which sorts att_regname_table by
ATT name.}
{$i r386ari.inc}
);
{$endif x86_64}
function findreg_by_attname(const s:string):byte;
var
i,p : tregisterindex;
begin
{Binary search.}
p:=0;
i:=regnumber_count_bsstart;
repeat
if (p+i<=high(tregisterindex)) and (att_regname_table[att_regname_index[p+i]]<=s) then
p:=p+i;
i:=i shr 1;
until i=0;
if att_regname_table[att_regname_index[p]]=s then
findreg_by_attname:=att_regname_index[p]
else
findreg_by_attname:=0;
end;
function gas_regnum_search(const s:string):Tregister;
begin
result:=regnumber_table[findreg_by_attname(s)];
end;
function gas_regname(r:Tregister):string;
var
p : tregisterindex;
begin
p:=findreg_by_number(r);
if p<>0 then
result:=att_regname_table[p]
else
result:='%'+generic_regname(r);
end;
end.
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