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2de332fa28
fpc/compiler/aasmtai.pas
florian 2de332fa28 * powerpc compilation fix
2002-08-16 05:21:09 +00:00

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{
$Id$
Copyright (c) 1998-2002 by Florian Klaempfl
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
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.
****************************************************************************
}
{# @abstract(This unit implements an abstract asm output class for all processor types)
This unit implements an abstract assembler output class for all processors, these
are then overriden for each assembler writer to actually write the data in these
classes to an assembler file.
}
unit aasmtai;
{$i fpcdefs.inc}
interface
uses
cutils,cclasses,
globtype,globals,systems,
cpuinfo,cpubase,
symppu,
aasmbase;
type
tait = (
ait_none,
ait_direct,
ait_string,
ait_label,
ait_comment,
ait_instruction,
ait_datablock,
ait_symbol,
ait_symbol_end, { needed to calc the size of a symbol }
ait_const_32bit,
ait_const_16bit,
ait_const_8bit,
ait_const_symbol,
ait_real_80bit,
ait_real_64bit,
ait_real_32bit,
ait_comp_64bit,
ait_align,
ait_section,
{ the following is only used by the win32 version of the compiler }
{ and only the GNU AS Win32 is able to write it }
ait_const_rva,
{$ifdef GDB}
ait_stabn,
ait_stabs,
ait_force_line,
ait_stab_function_name,
{$endif GDB}
ait_cut, { used to split into tiny assembler files }
ait_regalloc,
ait_tempalloc,
ait_marker, { used to mark assembler blocks and inlined functions }
{$ifdef alpha}
{ the follow is for the DEC Alpha }
ait_frame,
ait_ent,
{$endif alpha}
{$ifdef m68k}
ait_labeled_instruction,
{$endif m68k}
{$ifdef ia64}
ait_bundle,
ait_stop,
{$endif ia64}
{$ifdef SPARC}
ait_labeled_instruction,
{$endif SPARC}
{ never used, makes insertation of new ait_ easier to type }
{ lazy guy !!!! ;-) (FK) }
ait_dummy);
{ ait_* types which don't result in executable code or which don't influence }
{ the way the program runs/behaves, but which may be encountered by the }
{ optimizer (= if it's sometimes added to the exprasm list). Update if you add }
{ a new ait type! }
const
SkipInstr = [ait_comment, ait_symbol,ait_section
{$ifdef GDB}
,ait_stabs, ait_stabn, ait_stab_function_name, ait_force_line
{$endif GDB}
,ait_regalloc, ait_tempalloc, ait_symbol_end];
type
{ cut type, required for alphanumeric ordering of the assembler filenames }
TCutPlace=(cut_normal,cut_begin,cut_end);
TMarker = (NoPropInfoStart,NoPropInfoEnd,
AsmBlockStart,AsmBlockEnd,
InlineStart,InlineEnd);
{ the short name makes typing easier }
tai = class(TLinkedListItem)
{ pointer to record with optimizer info about this tai object }
optinfo : pointer;
fileinfo : tfileposinfo;
typ : tait;
constructor Create;
procedure write(ppufile:tcompilerppufile);virtual;abstract;
procedure derefobjectdata;virtual;
end;
{# Generates an assembler string }
tai_string = class(tai)
str : pchar;
{ extra len so the string can contain an \0 }
len : longint;
constructor Create(const _str : string);
constructor Create_pchar(_str : pchar);
constructor Create_length_pchar(_str : pchar;length : longint);
destructor Destroy;override;
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates a common label }
tai_symbol = class(tai)
is_global : boolean;
sym : tasmsymbol;
size : longint;
constructor Create(_sym:tasmsymbol;siz:longint);
constructor Createname(const _name : string;siz:longint);
constructor Createname_global(const _name : string;siz:longint);
constructor Createdataname(const _name : string;siz:longint);
constructor Createdataname_global(const _name : string;siz:longint);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
procedure derefobjectdata;override;
end;
tai_symbol_end = class(tai)
sym : tasmsymbol;
constructor Create(_sym:tasmsymbol);
constructor Createname(const _name : string);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
procedure derefobjectdata;override;
end;
{# Generates an assembler label }
tai_label = class(tai)
is_global : boolean;
l : tasmlabel;
constructor Create(_l : tasmlabel);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
procedure derefobjectdata;override;
end;
{# Directly output data to final assembler file }
tai_direct = class(tai)
str : pchar;
constructor Create(_str : pchar);
destructor Destroy; override;
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates an assembler comment }
tai_asm_comment = class(tai)
str : pchar;
constructor Create(_str : pchar);
destructor Destroy; override;
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates a section / segment directive }
tai_section = class(tai)
sec : TSection;
constructor Create(s : TSection);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates an uninitializised data block }
tai_datablock = class(tai)
is_global : boolean;
sym : tasmsymbol;
size : longint;
constructor Create(const _name : string;_size : longint);
constructor Create_global(const _name : string;_size : longint);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
procedure derefobjectdata;override;
end;
{# Generates a long integer (32 bit) }
tai_const = class(tai)
value : longint;
constructor Create_32bit(_value : longint);
constructor Create_16bit(_value : word);
constructor Create_8bit(_value : byte);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
tai_const_symbol = class(tai)
sym : tasmsymbol;
offset : longint;
constructor Create(_sym:tasmsymbol);
constructor Create_offset(_sym:tasmsymbol;ofs:longint);
constructor Create_rva(_sym:tasmsymbol);
constructor Createname(const name:string);
constructor Createname_offset(const name:string;ofs:longint);
constructor Createname_rva(const name:string);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
procedure derefobjectdata;override;
end;
{# Generates a single float (32 bit real) }
tai_real_32bit = class(tai)
value : ts32real;
constructor Create(_value : ts32real);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates a double float (64 bit real) }
tai_real_64bit = class(tai)
value : ts64real;
constructor Create(_value : ts64real);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates an extended float (80 bit real) }
tai_real_80bit = class(tai)
value : ts80real;
constructor Create(_value : ts80real);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Generates a comp int (integer over 64 bits)
This is Intel 80x86 specific, and is not
really supported on other processors.
}
tai_comp_64bit = class(tai)
value : ts64comp;
constructor Create(_value : ts64comp);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Insert a cut to split assembler into several smaller files }
tai_cut = class(tai)
place : tcutplace;
constructor Create;
constructor Create_begin;
constructor Create_end;
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Insert a marker for assembler and inline blocks }
tai_marker = class(tai)
Kind: TMarker;
Constructor Create(_Kind: TMarker);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
tai_tempalloc = class(tai)
allocation : boolean;
temppos,
tempsize : longint;
constructor alloc(pos,size:longint);
constructor dealloc(pos,size:longint);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
tai_regalloc = class(tai)
allocation : boolean;
reg : tregister;
constructor alloc(r : tregister);
constructor dealloc(r : tregister);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
end;
{# Class template for assembler instructions
}
taicpu_abstract = class(tai)
protected
procedure ppuloadoper(ppufile:tcompilerppufile;var o:toper);virtual;abstract;
procedure ppuwriteoper(ppufile:tcompilerppufile;const o:toper);virtual;abstract;
procedure ppuderefoper(var o:toper);virtual;abstract;
public
{# Condition flags for instruction }
condition : TAsmCond;
{# Number of operands to instruction }
ops : byte;
{# Operands of instruction }
oper : array[0..max_operands-1] of toper;
{# Actual opcode of instruction }
opcode : tasmop;
{$ifdef i386}
segprefix : tregister;
{$endif i386}
{# true if instruction is a jmp }
is_jmp : boolean; { is this instruction a jump? (needed for optimizer) }
Constructor Create(op : tasmop);
Destructor Destroy;override;
function getcopy:TLinkedListItem;override;
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
procedure derefobjectdata;override;
procedure SetCondition(const c:TAsmCond);
procedure loadconst(opidx:longint;l:aword);
procedure loadsymbol(opidx:longint;s:tasmsymbol;sofs:longint);
procedure loadref(opidx:longint;const r:treference);
procedure loadreg(opidx:longint;r:tregister);
procedure loadoper(opidx:longint;o:toper);
end;
{# alignment for operator }
tai_align_abstract = class(tai)
buf : array[0..63] of char; { buf used for fill }
aligntype : byte; { 1 = no align, 2 = word align, 4 = dword align }
fillsize : byte; { real size to fill }
fillop : byte; { value to fill with - optional }
use_op : boolean;
constructor Create(b:byte);
constructor Create_op(b: byte; _op: byte);
constructor load(ppufile:tcompilerppufile);
procedure write(ppufile:tcompilerppufile);override;
function getfillbuf:pchar;virtual;
end;
taasmoutput = class(tlinkedlist)
function getlasttaifilepos : pfileposinfo;
end;
var
{ temporary lists }
exprasmlist,
{ default lists }
datasegment,codesegment,bsssegment,
debuglist,withdebuglist,consts,
importssection,exportssection,
resourcesection,rttilist,
resourcestringlist : taasmoutput;
implementation
uses
{$ifdef delphi}
sysutils,
{$else}
strings,
{$endif}
verbose,
ppu;
{****************************************************************************
TAI
****************************************************************************}
constructor tai.Create;
begin
optinfo := nil;
fileinfo:=aktfilepos;
end;
procedure tai.derefobjectdata;
begin
end;
{****************************************************************************
TAI_SECTION
****************************************************************************}
constructor tai_section.Create(s : TSection);
begin
inherited Create;
typ:=ait_section;
sec:=s;
end;
constructor tai_section.load(ppufile:tcompilerppufile);
begin
inherited Create;
sec:=tsection(ppufile.getbyte);
end;
procedure tai_section.write(ppufile:tcompilerppufile);
begin
ppufile.putbyte(byte(sec));
ppufile.writeentry(ibtaisection);
end;
{****************************************************************************
TAI_DATABLOCK
****************************************************************************}
constructor tai_datablock.Create(const _name : string;_size : longint);
begin
inherited Create;
typ:=ait_datablock;
sym:=objectlibrary.newasmsymboltype(_name,AB_LOCAL,AT_DATA);
{ keep things aligned }
if _size<=0 then
_size:=4;
size:=_size;
is_global:=false;
end;
constructor tai_datablock.Create_global(const _name : string;_size : longint);
begin
inherited Create;
typ:=ait_datablock;
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_DATA);
{ keep things aligned }
if _size<=0 then
_size:=4;
size:=_size;
is_global:=true;
end;
constructor tai_datablock.load(ppufile:tcompilerppufile);
begin
inherited Create;
sym:=ppufile.getasmsymbol;
size:=ppufile.getlongint;
is_global:=boolean(ppufile.getbyte);
end;
procedure tai_datablock.write(ppufile:tcompilerppufile);
begin
ppufile.putasmsymbol(sym);
ppufile.putlongint(size);
ppufile.putbyte(byte(is_global));
ppufile.writeentry(ibtaidatablock);
end;
procedure tai_datablock.derefobjectdata;
begin
objectlibrary.DerefAsmsymbol(sym);
end;
{****************************************************************************
TAI_SYMBOL
****************************************************************************}
constructor tai_symbol.Create(_sym:tasmsymbol;siz:longint);
begin
inherited Create;
typ:=ait_symbol;
sym:=_sym;
size:=siz;
is_global:=(sym.defbind=AB_GLOBAL);
end;
constructor tai_symbol.Createname(const _name : string;siz:longint);
begin
inherited Create;
typ:=ait_symbol;
sym:=objectlibrary.newasmsymboltype(_name,AB_LOCAL,AT_FUNCTION);
size:=siz;
is_global:=false;
end;
constructor tai_symbol.Createname_global(const _name : string;siz:longint);
begin
inherited Create;
typ:=ait_symbol;
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_FUNCTION);
size:=siz;
is_global:=true;
end;
constructor tai_symbol.Createdataname(const _name : string;siz:longint);
begin
inherited Create;
typ:=ait_symbol;
sym:=objectlibrary.newasmsymboltype(_name,AB_LOCAL,AT_DATA);
size:=siz;
is_global:=false;
end;
constructor tai_symbol.Createdataname_global(const _name : string;siz:longint);
begin
inherited Create;
typ:=ait_symbol;
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_DATA);
size:=siz;
is_global:=true;
end;
constructor tai_symbol.load(ppufile:tcompilerppufile);
begin
inherited Create;
sym:=ppufile.getasmsymbol;
size:=ppufile.getlongint;
is_global:=boolean(ppufile.getbyte);
end;
procedure tai_symbol.write(ppufile:tcompilerppufile);
begin
ppufile.putasmsymbol(sym);
ppufile.putlongint(size);
ppufile.putbyte(byte(is_global));
ppufile.writeentry(ibtaisymbol);
end;
procedure tai_symbol.derefobjectdata;
begin
objectlibrary.DerefAsmsymbol(sym);
end;
{****************************************************************************
TAI_SYMBOL
****************************************************************************}
constructor tai_symbol_end.Create(_sym:tasmsymbol);
begin
inherited Create;
typ:=ait_symbol_end;
sym:=_sym;
end;
constructor tai_symbol_end.Createname(const _name : string);
begin
inherited Create;
typ:=ait_symbol_end;
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_NONE);
end;
constructor tai_symbol_end.load(ppufile:tcompilerppufile);
begin
inherited Create;
sym:=ppufile.getasmsymbol;
end;
procedure tai_symbol_end.write(ppufile:tcompilerppufile);
begin
ppufile.putasmsymbol(sym);
ppufile.writeentry(ibtaisymbol);
end;
procedure tai_symbol_end.derefobjectdata;
begin
objectlibrary.DerefAsmsymbol(sym);
end;
{****************************************************************************
TAI_CONST
****************************************************************************}
constructor tai_const.Create_32bit(_value : longint);
begin
inherited Create;
typ:=ait_const_32bit;
value:=_value;
end;
constructor tai_const.Create_16bit(_value : word);
begin
inherited Create;
typ:=ait_const_16bit;
value:=_value;
end;
constructor tai_const.Create_8bit(_value : byte);
begin
inherited Create;
typ:=ait_const_8bit;
value:=_value;
end;
constructor tai_const.load(ppufile:tcompilerppufile);
begin
inherited Create;
value:=ppufile.getlongint;
end;
procedure tai_const.write(ppufile:tcompilerppufile);
begin
ppufile.putlongint(value);
case typ of
ait_const_8bit :
ppufile.writeentry(ibtaiconst_8bit);
ait_const_16bit :
ppufile.writeentry(ibtaiconst_16bit);
ait_const_32bit :
ppufile.writeentry(ibtaiconst_32bit);
end;
end;
{****************************************************************************
TAI_CONST_SYMBOL_OFFSET
****************************************************************************}
constructor tai_const_symbol.Create(_sym:tasmsymbol);
begin
inherited Create;
typ:=ait_const_symbol;
sym:=_sym;
offset:=0;
{ update sym info }
inc(sym.refs);
end;
constructor tai_const_symbol.Create_offset(_sym:tasmsymbol;ofs:longint);
begin
inherited Create;
typ:=ait_const_symbol;
sym:=_sym;
offset:=ofs;
{ update sym info }
inc(sym.refs);
end;
constructor tai_const_symbol.Create_rva(_sym:tasmsymbol);
begin
inherited Create;
typ:=ait_const_rva;
sym:=_sym;
offset:=0;
{ update sym info }
inc(sym.refs);
end;
constructor tai_const_symbol.Createname(const name:string);
begin
inherited Create;
typ:=ait_const_symbol;
sym:=objectlibrary.newasmsymbol(name);
offset:=0;
{ update sym info }
inc(sym.refs);
end;
constructor tai_const_symbol.Createname_offset(const name:string;ofs:longint);
begin
inherited Create;
typ:=ait_const_symbol;
sym:=objectlibrary.newasmsymbol(name);
offset:=ofs;
{ update sym info }
inc(sym.refs);
end;
constructor tai_const_symbol.Createname_rva(const name:string);
begin
inherited Create;
typ:=ait_const_rva;
sym:=objectlibrary.newasmsymbol(name);
offset:=0;
{ update sym info }
inc(sym.refs);
end;
constructor tai_const_symbol.load(ppufile:tcompilerppufile);
begin
inherited Create;
sym:=ppufile.getasmsymbol;
offset:=ppufile.getlongint;
end;
procedure tai_const_symbol.write(ppufile:tcompilerppufile);
begin
ppufile.putasmsymbol(sym);
ppufile.putlongint(offset);
case typ of
ait_const_symbol :
ppufile.writeentry(ibtaiconst_symbol);
ait_const_rva :
ppufile.writeentry(ibtaiconst_rva);
end;
end;
procedure tai_const_symbol.derefobjectdata;
begin
objectlibrary.DerefAsmsymbol(sym);
end;
{****************************************************************************
TAI_real_32bit
****************************************************************************}
constructor tai_real_32bit.Create(_value : ts32real);
begin
inherited Create;
typ:=ait_real_32bit;
value:=_value;
end;
constructor tai_real_32bit.load(ppufile:tcompilerppufile);
begin
inherited Create;
value:=ppufile.getreal;
end;
procedure tai_real_32bit.write(ppufile:tcompilerppufile);
begin
ppufile.putreal(value);
ppufile.writeentry(ibtaireal_32bit);
end;
{****************************************************************************
TAI_real_64bit
****************************************************************************}
constructor tai_real_64bit.Create(_value : ts64real);
begin
inherited Create;
typ:=ait_real_64bit;
value:=_value;
end;
constructor tai_real_64bit.load(ppufile:tcompilerppufile);
begin
inherited Create;
value:=ppufile.getreal;
end;
procedure tai_real_64bit.write(ppufile:tcompilerppufile);
begin
ppufile.putreal(value);
ppufile.writeentry(ibtaireal_64bit);
end;
{****************************************************************************
TAI_real_80bit
****************************************************************************}
constructor tai_real_80bit.Create(_value : ts80real);
begin
inherited Create;
typ:=ait_real_80bit;
value:=_value;
end;
constructor tai_real_80bit.load(ppufile:tcompilerppufile);
begin
inherited Create;
value:=ppufile.getreal;
end;
procedure tai_real_80bit.write(ppufile:tcompilerppufile);
begin
ppufile.putreal(value);
ppufile.writeentry(ibtaireal_80bit);
end;
{****************************************************************************
Tai_comp_64bit
****************************************************************************}
constructor tai_comp_64bit.Create(_value : ts64comp);
begin
inherited Create;
typ:=ait_comp_64bit;
value:=_value;
end;
constructor tai_comp_64bit.load(ppufile:tcompilerppufile);
begin
inherited Create;
value:=ppufile.getreal;
end;
procedure tai_comp_64bit.write(ppufile:tcompilerppufile);
begin
ppufile.putreal(value);
ppufile.writeentry(ibtaicomp_64bit);
end;
{****************************************************************************
TAI_STRING
****************************************************************************}
constructor tai_string.Create(const _str : string);
begin
inherited Create;
typ:=ait_string;
len:=length(_str);
getmem(str,len+1);
strpcopy(str,_str);
end;
constructor tai_string.Create_pchar(_str : pchar);
begin
inherited Create;
typ:=ait_string;
str:=_str;
len:=strlen(_str);
end;
constructor tai_string.Create_length_pchar(_str : pchar;length : longint);
begin
inherited Create;
typ:=ait_string;
str:=_str;
len:=length;
end;
destructor tai_string.destroy;
begin
{ you can have #0 inside the strings so }
if str<>nil then
freemem(str,len+1);
inherited Destroy;
end;
constructor tai_string.load(ppufile:tcompilerppufile);
begin
inherited Create;
len:=ppufile.getlongint;
getmem(str,len+1);
ppufile.getdata(str^,len);
str[len]:=#0;
end;
procedure tai_string.write(ppufile:tcompilerppufile);
begin
ppufile.putlongint(len);
ppufile.putdata(str^,len);
ppufile.writeentry(ibtaistring);
end;
{****************************************************************************
TAI_LABEL
****************************************************************************}
constructor tai_label.create(_l : tasmlabel);
begin
inherited Create;
typ:=ait_label;
l:=_l;
l.is_set:=true;
is_global:=(l.defbind=AB_GLOBAL);
end;
constructor tai_label.load(ppufile:tcompilerppufile);
begin
inherited Create;
l:=tasmlabel(ppufile.getasmsymbol);
l.is_set:=true;
is_global:=boolean(ppufile.getbyte);
end;
procedure tai_label.write(ppufile:tcompilerppufile);
begin
ppufile.putasmsymbol(l);
ppufile.putbyte(byte(is_global));
ppufile.writeentry(ibtailabel);
end;
procedure tai_label.derefobjectdata;
begin
objectlibrary.DerefAsmsymbol(l);
end;
{****************************************************************************
TAI_DIRECT
****************************************************************************}
constructor tai_direct.Create(_str : pchar);
begin
inherited Create;
typ:=ait_direct;
str:=_str;
end;
destructor tai_direct.destroy;
begin
strdispose(str);
inherited Destroy;
end;
constructor tai_direct.load(ppufile:tcompilerppufile);
var
len : longint;
begin
inherited Create;
len:=ppufile.getlongint;
getmem(str,len+1);
ppufile.getdata(str^,len);
str[len]:=#0;
end;
procedure tai_direct.write(ppufile:tcompilerppufile);
var
len : longint;
begin
len:=strlen(str);
ppufile.putlongint(len);
ppufile.putdata(str^,len);
ppufile.writeentry(ibtaidirect);
end;
{****************************************************************************
TAI_ASM_COMMENT comment to be inserted in the assembler file
****************************************************************************}
constructor tai_asm_comment.Create(_str : pchar);
begin
inherited Create;
typ:=ait_comment;
str:=_str;
end;
destructor tai_asm_comment.destroy;
begin
strdispose(str);
inherited Destroy;
end;
constructor tai_asm_comment.load(ppufile:tcompilerppufile);
var
len : longint;
begin
inherited Create;
len:=ppufile.getlongint;
getmem(str,len+1);
ppufile.getdata(str^,len);
str[len]:=#0;
end;
procedure tai_asm_comment.write(ppufile:tcompilerppufile);
var
len : longint;
begin
len:=strlen(str);
ppufile.putlongint(len);
ppufile.putdata(str^,len);
ppufile.writeentry(ibtaicomment);
end;
{****************************************************************************
TAI_CUT
****************************************************************************}
constructor tai_cut.Create;
begin
inherited Create;
typ:=ait_cut;
place:=cut_normal;
end;
constructor tai_cut.Create_begin;
begin
inherited Create;
typ:=ait_cut;
place:=cut_begin;
end;
constructor tai_cut.Create_end;
begin
inherited Create;
typ:=ait_cut;
place:=cut_end;
end;
constructor tai_cut.load(ppufile:tcompilerppufile);
begin
inherited Create;
place:=TCutPlace(ppufile.getbyte);
end;
procedure tai_cut.write(ppufile:tcompilerppufile);
begin
ppufile.putbyte(byte(place));
ppufile.writeentry(ibtaicut);
end;
{****************************************************************************
Tai_Marker
****************************************************************************}
Constructor Tai_Marker.Create(_Kind: TMarker);
Begin
Inherited Create;
typ := ait_marker;
Kind := _Kind;
End;
constructor Tai_Marker.load(ppufile:tcompilerppufile);
begin
inherited Create;
kind:=TMarker(ppufile.getbyte);
end;
procedure Tai_Marker.write(ppufile:tcompilerppufile);
begin
ppufile.putbyte(byte(kind));
ppufile.writeentry(ibtaimarker);
end;
{*****************************************************************************
tai_tempalloc
*****************************************************************************}
constructor tai_tempalloc.alloc(pos,size:longint);
begin
inherited Create;
typ:=ait_tempalloc;
allocation:=true;
temppos:=pos;
tempsize:=size;
end;
constructor tai_tempalloc.dealloc(pos,size:longint);
begin
inherited Create;
typ:=ait_tempalloc;
allocation:=false;
temppos:=pos;
tempsize:=size;
end;
constructor tai_tempalloc.load(ppufile:tcompilerppufile);
begin
inherited Create;
temppos:=ppufile.getlongint;
tempsize:=ppufile.getlongint;
allocation:=boolean(ppufile.getbyte);
end;
procedure tai_tempalloc.write(ppufile:tcompilerppufile);
begin
ppufile.putlongint(temppos);
ppufile.putlongint(tempsize);
ppufile.putbyte(byte(allocation));
ppufile.writeentry(ibtaitempalloc);
end;
{*****************************************************************************
tai_regalloc
*****************************************************************************}
constructor tai_regalloc.alloc(r : tregister);
begin
inherited create;
typ:=ait_regalloc;
allocation:=true;
reg:=r;
end;
constructor tai_regalloc.dealloc(r : tregister);
begin
inherited create;
typ:=ait_regalloc;
allocation:=false;
reg:=r;
end;
constructor tai_regalloc.load(ppufile:tcompilerppufile);
begin
inherited Create;
reg:=tregister(ppufile.getbyte);
allocation:=boolean(ppufile.getbyte);
end;
procedure tai_regalloc.write(ppufile:tcompilerppufile);
begin
ppufile.putbyte(byte(reg));
ppufile.putbyte(byte(allocation));
ppufile.writeentry(ibtairegalloc);
end;
{*****************************************************************************
TaiInstruction
*****************************************************************************}
constructor taicpu_abstract.Create(op : tasmop);
begin
inherited create;
typ:=ait_instruction;
is_jmp:=false;
opcode:=op;
ops:=0;
fillchar(condition,sizeof(condition),0);
fillchar(oper,sizeof(oper),0);
end;
destructor taicpu_abstract.Destroy;
var
i : longint;
begin
for i:=0 to ops-1 do
case oper[i].typ of
top_ref:
dispose(oper[i].ref);
top_symbol:
dec(tasmsymbol(oper[i].sym).refs);
end;
inherited destroy;
end;
{ ---------------------------------------------------------------------
Loading of operands.
---------------------------------------------------------------------}
procedure taicpu_abstract.loadconst(opidx:longint;l:aword);
begin
if opidx>=ops then
ops:=opidx+1;
with oper[opidx] do
begin
if typ=top_ref then
dispose(ref);
val:=l;
typ:=top_const;
end;
end;
procedure taicpu_abstract.loadsymbol(opidx:longint;s:tasmsymbol;sofs:longint);
begin
if not assigned(s) then
internalerror(200204251);
if opidx>=ops then
ops:=opidx+1;
with oper[opidx] do
begin
if typ=top_ref then
dispose(ref);
sym:=s;
symofs:=sofs;
typ:=top_symbol;
end;
inc(s.refs);
end;
procedure taicpu_abstract.loadref(opidx:longint;const r:treference);
begin
if opidx>=ops then
ops:=opidx+1;
with oper[opidx] do
begin
if typ<>top_ref then
new(ref);
ref^:=r;
{$ifdef i386}
{ We allow this exception for i386, since overloading this would be
too much of a a speed penalty}
if not(ref^.segment in [R_DS,R_NO]) then
segprefix:=ref^.segment;
{$endif}
typ:=top_ref;
{ mark symbol as used }
if assigned(ref^.symbol) then
inc(ref^.symbol.refs);
end;
end;
procedure taicpu_abstract.loadreg(opidx:longint;r:tregister);
begin
if opidx>=ops then
ops:=opidx+1;
with oper[opidx] do
begin
if typ=top_ref then
dispose(ref);
reg:=r;
typ:=top_reg;
end;
end;
procedure taicpu_abstract.loadoper(opidx:longint;o:toper);
begin
if opidx>=ops then
ops:=opidx+1;
if oper[opidx].typ=top_ref then
dispose(oper[opidx].ref);
oper[opidx]:=o;
{ copy also the reference }
if oper[opidx].typ=top_ref then
begin
new(oper[opidx].ref);
oper[opidx].ref^:=o.ref^;
end;
end;
{ ---------------------------------------------------------------------
Miscellaneous methods.
---------------------------------------------------------------------}
procedure taicpu_abstract.SetCondition(const c:TAsmCond);
begin
condition:=c;
end;
Function taicpu_abstract.getcopy:TLinkedListItem;
var
i : longint;
p : TLinkedListItem;
begin
p:=inherited getcopy;
{ make a copy of the references }
for i:=1 to ops do
if (taicpu_abstract(p).oper[i-1].typ=top_ref) then
begin
new(taicpu_abstract(p).oper[i-1].ref);
taicpu_abstract(p).oper[i-1].ref^:=oper[i-1].ref^;
end;
getcopy:=p;
end;
constructor taicpu_abstract.load(ppufile:tcompilerppufile);
var
i : integer;
begin
inherited Create;
{ hopefully, we don't get problems with big/litte endian here when cross compiling :/ }
ppufile.getdata(condition,sizeof(tasmcond));
ops:=ppufile.getbyte;
for i:=1 to ops do
ppuloadoper(ppufile,oper[i-1]);
opcode:=tasmop(ppufile.getword);
{$ifdef i386}
segprefix:=tregister(ppufile.getbyte);
{$endif i386}
is_jmp:=boolean(ppufile.getbyte);
end;
procedure taicpu_abstract.write(ppufile:tcompilerppufile);
var
i : integer;
begin
ppufile.putdata(condition,sizeof(tasmcond));
ppufile.putbyte(ops);
for i:=1 to ops do
ppuwriteoper(ppufile,oper[i-1]);
ppufile.putword(word(opcode));
{$ifdef i386}
ppufile.putbyte(byte(segprefix));
{$endif i386}
ppufile.writeentry(ibtaiinstruction);
end;
procedure taicpu_abstract.derefobjectdata;
var
i : integer;
begin
for i:=1 to ops do
ppuderefoper(oper[i-1]);
end;
{****************************************************************************
tai_align_abstract
****************************************************************************}
constructor tai_align_abstract.Create(b: byte);
begin
inherited Create;
typ:=ait_align;
if b in [1,2,4,8,16,32] then
aligntype := b
else
aligntype := 1;
fillsize:=0;
fillop:=0;
use_op:=false;
end;
constructor tai_align_abstract.Create_op(b: byte; _op: byte);
begin
inherited Create;
typ:=ait_align;
if b in [1,2,4,8,16,32] then
aligntype := b
else
aligntype := 1;
fillsize:=0;
fillop:=_op;
use_op:=true;
fillchar(buf,sizeof(buf),_op)
end;
function tai_align_abstract.getfillbuf:pchar;
begin
getfillbuf:=@buf;
end;
constructor tai_align_abstract.load(ppufile:tcompilerppufile);
begin
inherited Create;
aligntype:=ppufile.getbyte;
fillsize:=0;
fillop:=ppufile.getbyte;
use_op:=boolean(ppufile.getbyte);
end;
procedure tai_align_abstract.write(ppufile:tcompilerppufile);
begin
ppufile.putbyte(aligntype);
ppufile.putbyte(fillop);
ppufile.putbyte(byte(use_op));
ppufile.writeentry(ibtaialign);
end;
{*****************************************************************************
TAAsmOutput
*****************************************************************************}
function taasmoutput.getlasttaifilepos : pfileposinfo;
begin
if assigned(last) then
getlasttaifilepos:=@tai(last).fileinfo
else
getlasttaifilepos:=nil;
end;
end.
{
$Log$
Revision 1.6 2002-08-16 05:21:09 florian
* powerpc compilation fix
Revision 1.5 2002/08/15 19:10:35 peter
* first things tai,tnode storing in ppu
Revision 1.4 2002/08/11 14:32:25 peter
* renamed current_library to objectlibrary
Revision 1.3 2002/08/11 13:24:10 peter
* saving of asmsymbols in ppu supported
* asmsymbollist global is removed and moved into a new class
tasmlibrarydata that will hold the info of a .a file which
corresponds with a single module. Added librarydata to tmodule
to keep the library info stored for the module. In the future the
objectfiles will also be stored to the tasmlibrarydata class
* all getlabel/newasmsymbol and friends are moved to the new class
Revision 1.2 2002/08/05 18:27:48 carl
+ more more more documentation
+ first version include/exclude (can't test though, not enough scratch for i386 :()...
Revision 1.1 2002/07/01 18:46:20 peter
* internal linker
* reorganized aasm layer
Revision 1.27 2002/05/18 13:34:04 peter
* readded missing revisions
Revision 1.25 2002/05/14 19:34:38 peter
* removed old logs and updated copyright year
Revision 1.24 2002/05/14 17:28:08 peter
* synchronized cpubase between powerpc and i386
* moved more tables from cpubase to cpuasm
* tai_align_abstract moved to tainst, cpuasm must define
the tai_align class now, which may be empty
Revision 1.23 2002/04/15 18:54:34 carl
- removed tcpuflags
Revision 1.22 2002/04/07 13:18:19 carl
+ more documentation
Revision 1.21 2002/04/07 10:17:40 carl
- remove packenumfixed (requires version 1.0.2 or later to compile now!)
+ changing some comments so its commented automatically
Revision 1.20 2002/03/24 19:04:31 carl
+ patch for SPARC from Mazen NEIFER
}
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