mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-05 08:38:14 +02:00
1258 lines
39 KiB
ObjectPascal
1258 lines
39 KiB
ObjectPascal
{
|
|
Copyright (c) 2002 by Florian Klaempfl
|
|
|
|
This unit implements an asmoutput class for PowerPC with MPW syntax
|
|
|
|
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.
|
|
|
|
****************************************************************************
|
|
}
|
|
{
|
|
This unit implements an asmoutput class for PowerPC with MPW syntax
|
|
}
|
|
unit agppcmpw;
|
|
|
|
{$i fpcdefs.inc}
|
|
{ We know that use_PR is a const boolean
|
|
but we don't care about this warning }
|
|
{$WARN 6018 OFF}
|
|
|
|
interface
|
|
|
|
uses
|
|
aasmtai,aasmdata,
|
|
globals,aasmbase,aasmcpu,assemble,
|
|
cpubase;
|
|
|
|
type
|
|
TPPCMPWAssembler = class(TExternalAssembler)
|
|
procedure WriteTree(p:TAsmList);override;
|
|
procedure WriteAsmList;override;
|
|
Function DoAssemble:boolean;override;
|
|
procedure WriteExternals;
|
|
procedure WriteAsmFileHeader;
|
|
private
|
|
cur_CSECT_name: String;
|
|
cur_CSECT_class: String;
|
|
|
|
procedure WriteInstruction(hp : tai);
|
|
procedure WriteProcedureHeader(var hp:tai);
|
|
procedure WriteDataHeader(var s:string; isExported, isConst:boolean);
|
|
end;
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
cutils,globtype,systems,cclasses,
|
|
verbose,finput,fmodule,cscript,cpuinfo,
|
|
cgbase,cgutils,
|
|
itcpugas
|
|
;
|
|
|
|
const
|
|
line_length = 70;
|
|
|
|
{Whether internal procedure references should be xxx[PR]: }
|
|
use_PR = false;
|
|
|
|
const_storage_class = '';
|
|
var_storage_class = '';
|
|
|
|
secnames : array[TAsmSectiontype] of string[10] = (
|
|
'', {none}
|
|
'', {user}
|
|
'csect', {code}
|
|
'csect', {data}
|
|
'csect', {read only data}
|
|
'csect', {read only data - no relocations}
|
|
'csect', {bss} 'csect', '',
|
|
'csect','csect','csect','csect','csect',
|
|
'csect','csect','csect',
|
|
'','','','','','','','','','','','','','',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
'',
|
|
''
|
|
);
|
|
|
|
type
|
|
t64bitarray = array[0..7] of byte;
|
|
t32bitarray = array[0..3] of byte;
|
|
|
|
function ReplaceForbiddenChars(var s: string):Boolean;
|
|
{Returns wheater a replacement has occurred.}
|
|
|
|
var
|
|
i:Integer;
|
|
|
|
{The dollar sign is not allowed in MPW PPCAsm}
|
|
|
|
begin
|
|
ReplaceForbiddenChars:=false;
|
|
for i:=1 to Length(s) do
|
|
if s[i]='$' then
|
|
begin
|
|
s[i]:='s';
|
|
ReplaceForbiddenChars:=true;
|
|
end;
|
|
end;
|
|
|
|
|
|
{*** From here is copyed from agppcgas.pp, except where marked with CHANGED.
|
|
Perhaps put in a third common file. ***}
|
|
|
|
|
|
function getreferencestring(var ref : treference) : string;
|
|
var
|
|
s : string;
|
|
begin
|
|
with ref do
|
|
begin
|
|
if (refaddr <> addr_no) then
|
|
InternalError(2002110301)
|
|
else if ((offset < -32768) or (offset > 32767)) then
|
|
InternalError(19991);
|
|
|
|
|
|
if assigned(symbol) then
|
|
begin
|
|
s:= symbol.name;
|
|
ReplaceForbiddenChars(s);
|
|
{if symbol.typ = AT_FUNCTION then
|
|
;}
|
|
|
|
s:= s+'[TC]' {ref to TOC entry }
|
|
end
|
|
else
|
|
s:= '';
|
|
|
|
|
|
if offset<0 then
|
|
s:=s+tostr(offset)
|
|
else
|
|
if (offset>0) then
|
|
begin
|
|
if assigned(symbol) then
|
|
s:=s+'+'+tostr(offset)
|
|
else
|
|
s:=s+tostr(offset);
|
|
end;
|
|
|
|
if (index=NR_NO) and (base<>NR_NO) then
|
|
begin
|
|
if offset=0 then
|
|
if not assigned(symbol) then
|
|
s:=s+'0';
|
|
s:=s+'('+gas_regname(base)+')';
|
|
end
|
|
else if (index<>NR_NO) and (base<>NR_NO) and (offset=0) then
|
|
begin
|
|
if (offset=0) then
|
|
s:=s+gas_regname(base)+','+gas_regname(index)
|
|
else
|
|
internalerror(19992);
|
|
end
|
|
else if (base=NR_NO) and (offset=0) then
|
|
begin
|
|
{Temporary fix for inline asm, where a local var is referenced.}
|
|
//if assigned(symbol) then
|
|
// s:= s+'(rtoc)';
|
|
end;
|
|
end;
|
|
getreferencestring:=s;
|
|
end;
|
|
|
|
function getopstr_jmp(const o:toper) : string;
|
|
var
|
|
hs : string;
|
|
begin
|
|
case o.typ of
|
|
top_reg :
|
|
getopstr_jmp:=gas_regname(o.reg);
|
|
{ no top_ref jumping for powerpc }
|
|
top_const :
|
|
getopstr_jmp:=tostr(o.val);
|
|
top_ref :
|
|
begin
|
|
if o.ref^.refaddr=addr_full then
|
|
begin
|
|
hs:=o.ref^.symbol.name;
|
|
ReplaceForbiddenChars(hs);
|
|
case o.ref^.symbol.typ of
|
|
AT_FUNCTION:
|
|
begin
|
|
if hs[1] <> '@' then {if not local label}
|
|
if use_PR then
|
|
hs:= '.'+hs+'[PR]'
|
|
else
|
|
hs:= '.'+hs
|
|
end
|
|
else
|
|
;
|
|
end;
|
|
if o.ref^.offset>0 then
|
|
hs:=hs+'+'+tostr(o.ref^.offset)
|
|
else
|
|
if o.ref^.offset<0 then
|
|
hs:=hs+tostr(o.ref^.offset);
|
|
getopstr_jmp:=hs;
|
|
end
|
|
else
|
|
internalerror(200402263);
|
|
end;
|
|
top_none:
|
|
getopstr_jmp:='';
|
|
else
|
|
internalerror(2002070603);
|
|
end;
|
|
end;
|
|
|
|
function getopstr(const o:toper) : string;
|
|
var
|
|
hs : string;
|
|
begin
|
|
case o.typ of
|
|
top_reg:
|
|
getopstr:=gas_regname(o.reg);
|
|
top_const:
|
|
getopstr:=tostr(longint(o.val));
|
|
top_ref:
|
|
if o.ref^.refaddr=addr_no then
|
|
getopstr:=getreferencestring(o.ref^)
|
|
else if o.ref^.refaddr=addr_pic_no_got then
|
|
begin
|
|
if (o.ref^.base<>NR_RTOC) or
|
|
(o.ref^.index<>NR_NO) or
|
|
(o.ref^.offset<>0) or
|
|
not assigned(o.ref^.symbol) then
|
|
internalerror(2011122701);
|
|
hs:=o.ref^.symbol.name;
|
|
ReplaceForbiddenChars(hs);
|
|
hs:=hs+'[TC](RTOC)';
|
|
getopstr:=hs;
|
|
end
|
|
else
|
|
begin
|
|
hs:=o.ref^.symbol.name;
|
|
ReplaceForbiddenChars(hs);
|
|
if o.ref^.offset>0 then
|
|
hs:=hs+'+'+tostr(o.ref^.offset)
|
|
else
|
|
if o.ref^.offset<0 then
|
|
hs:=hs+tostr(o.ref^.offset);
|
|
getopstr:=hs;
|
|
end;
|
|
else
|
|
internalerror(2002070604);
|
|
end;
|
|
end;
|
|
|
|
type
|
|
topstr = string[4];
|
|
|
|
function branchmode(o: tasmop): topstr;
|
|
var tempstr: topstr;
|
|
begin
|
|
tempstr := '';
|
|
case o of
|
|
A_BCCTR,A_BCCTRL: tempstr := 'ctr';
|
|
A_BCLR,A_BCLRL: tempstr := 'lr';
|
|
else
|
|
;
|
|
end;
|
|
case o of
|
|
A_BL,A_BLA,A_BCL,A_BCLA,A_BCCTRL,A_BCLRL: tempstr := tempstr+'l';
|
|
else
|
|
;
|
|
end;
|
|
case o of
|
|
A_BA,A_BLA,A_BCA,A_BCLA: tempstr:=tempstr+'a';
|
|
else
|
|
;
|
|
end;
|
|
branchmode := tempstr;
|
|
end;
|
|
|
|
function cond2str(op: tasmop; c: tasmcond): string;
|
|
{ note: no checking is performed whether the given combination of }
|
|
{ conditions is valid }
|
|
var
|
|
tempstr: string;
|
|
begin
|
|
tempstr:=#9;
|
|
case c.simple of
|
|
false:
|
|
begin
|
|
cond2str := tempstr+gas_op2str[op];
|
|
case c.dirhint of
|
|
DH_None:;
|
|
DH_Minus:
|
|
cond2str:=cond2str+'-';
|
|
DH_Plus:
|
|
cond2str:=cond2str+'+';
|
|
else
|
|
internalerror(2003112901);
|
|
end;
|
|
cond2str:=cond2str+#9+tostr(c.bo)+','+tostr(c.bi)+',';
|
|
end;
|
|
true:
|
|
if (op >= A_B) and (op <= A_BCLRL) then
|
|
case c.cond of
|
|
{ unconditional branch }
|
|
C_NONE:
|
|
cond2str := tempstr+gas_op2str[op];
|
|
{ bdnzt etc }
|
|
else
|
|
begin
|
|
tempstr := tempstr+'b'+asmcondflag2str[c.cond]+
|
|
branchmode(op);
|
|
case c.dirhint of
|
|
DH_None:
|
|
tempstr:=tempstr+#9;
|
|
DH_Minus:
|
|
tempstr:=tempstr+('-'+#9);
|
|
DH_Plus:
|
|
tempstr:=tempstr+('+'+#9);
|
|
else
|
|
internalerror(2003112904);
|
|
end;
|
|
case c.cond of
|
|
C_LT..C_NU:
|
|
cond2str := tempstr+gas_regname(newreg(R_SPECIALREGISTER,c.cr,R_SUBWHOLE));
|
|
C_T,C_F,C_DNZT,C_DNZF,C_DZT,C_DZF:
|
|
cond2str := tempstr+tostr(c.crbit);
|
|
else
|
|
cond2str := tempstr;
|
|
end;
|
|
end;
|
|
end
|
|
{ we have a trap instruction }
|
|
else
|
|
begin
|
|
internalerror(2002070601);
|
|
{ not yet implemented !!!!!!!!!!!!!!!!!!!!! }
|
|
{ case tempstr := 'tw';}
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteInstruction(hp : tai);
|
|
var op: TAsmOp;
|
|
s: string;
|
|
i: byte;
|
|
sep: string[3];
|
|
begin
|
|
op:=taicpu(hp).opcode;
|
|
if is_calljmp(op) then
|
|
begin
|
|
{ direct BO/BI in op[0] and op[1] not supported, put them in condition! }
|
|
case op of
|
|
A_B,A_BA:
|
|
s:=#9+gas_op2str[op]+#9;
|
|
A_BCTR,A_BCTRL,A_BLR,A_BLRL:
|
|
s:=#9+gas_op2str[op];
|
|
A_BL,A_BLA:
|
|
s:=#9+gas_op2str[op]+#9;
|
|
else
|
|
begin
|
|
s:=cond2str(op,taicpu(hp).condition);
|
|
if (s[length(s)] <> #9) and
|
|
(taicpu(hp).ops>0) then
|
|
s := s + ',';
|
|
end;
|
|
end;
|
|
if (taicpu(hp).ops>0) and (taicpu(hp).oper[0]^.typ<>top_none) then
|
|
begin
|
|
{ first write the current contents of s, because the symbol }
|
|
{ may be 255 characters }
|
|
writer.AsmWrite(s);
|
|
s:=getopstr_jmp(taicpu(hp).oper[0]^);
|
|
end;
|
|
end
|
|
else
|
|
{ process operands }
|
|
begin
|
|
s:=#9+gas_op2str[op];
|
|
if taicpu(hp).ops<>0 then
|
|
begin
|
|
sep:=#9;
|
|
for i:=0 to taicpu(hp).ops-1 do
|
|
begin
|
|
s:=s+sep+getopstr(taicpu(hp).oper[i]^);
|
|
sep:=',';
|
|
end;
|
|
end;
|
|
end;
|
|
writer.AsmWriteLn(s);
|
|
end;
|
|
|
|
{*** Until here is copyed from agppcgas.pp. ***}
|
|
|
|
|
|
function single2str(d : single) : string;
|
|
var
|
|
hs : string;
|
|
p : byte;
|
|
begin
|
|
str(d,hs);
|
|
{ nasm expects a lowercase e }
|
|
p:=pos('E',hs);
|
|
if p>0 then
|
|
hs[p]:='e';
|
|
p:=pos('+',hs);
|
|
if p>0 then
|
|
delete(hs,p,1);
|
|
single2str:=lower(hs);
|
|
end;
|
|
|
|
function double2str(d : double) : string;
|
|
var
|
|
hs : string;
|
|
p : byte;
|
|
begin
|
|
str(d,hs);
|
|
{ nasm expects a lowercase e }
|
|
p:=pos('E',hs);
|
|
if p>0 then
|
|
hs[p]:='e';
|
|
p:=pos('+',hs);
|
|
if p>0 then
|
|
delete(hs,p,1);
|
|
double2str:=lower(hs);
|
|
end;
|
|
|
|
{ convert floating point values }
|
|
{ to correct endian }
|
|
procedure swap64bitarray(var t: t64bitarray);
|
|
var
|
|
b: byte;
|
|
begin
|
|
b:= t[7];
|
|
t[7] := t[0];
|
|
t[0] := b;
|
|
|
|
b := t[6];
|
|
t[6] := t[1];
|
|
t[1] := b;
|
|
|
|
b:= t[5];
|
|
t[5] := t[2];
|
|
t[2] := b;
|
|
|
|
b:= t[4];
|
|
t[4] := t[3];
|
|
t[3] := b;
|
|
end;
|
|
|
|
procedure swap32bitarray(var t: t32bitarray);
|
|
var
|
|
b: byte;
|
|
begin
|
|
b:= t[1];
|
|
t[1]:= t[2];
|
|
t[2]:= b;
|
|
|
|
b:= t[0];
|
|
t[0]:= t[3];
|
|
t[3]:= b;
|
|
end;
|
|
|
|
Function PadTabs(const p:string;addch:char):string;
|
|
var
|
|
s : string;
|
|
i : longint;
|
|
begin
|
|
i:=length(p);
|
|
if addch<>#0 then
|
|
begin
|
|
inc(i);
|
|
s:=p+addch;
|
|
end
|
|
else
|
|
s:=p;
|
|
if i<8 then
|
|
PadTabs:=s+#9#9
|
|
else
|
|
PadTabs:=s+#9;
|
|
end;
|
|
|
|
{****************************************************************************
|
|
PowerPC MPW Assembler
|
|
****************************************************************************}
|
|
procedure TPPCMPWAssembler.WriteProcedureHeader(var hp:tai);
|
|
{Returns the current hp where the caller should continue from}
|
|
{For multiple entry procedures, only the last is exported as xxx[PR]
|
|
(if use_PR is set) }
|
|
|
|
procedure WriteExportHeader(hp:tai);
|
|
|
|
var
|
|
s: string;
|
|
replaced: boolean;
|
|
|
|
begin
|
|
s:= tai_symbol(hp).sym.name;
|
|
replaced:= ReplaceForbiddenChars(s);
|
|
|
|
if not use_PR then
|
|
begin
|
|
writer.AsmWrite(#9'export'#9'.');
|
|
writer.AsmWrite(s);
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' => ''.');
|
|
writer.AsmWrite(tai_symbol(hp).sym.name);
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
writer.AsmWrite(#9'export'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite('[DS]');
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' => ''');
|
|
writer.AsmWrite(tai_symbol(hp).sym.name);
|
|
writer.AsmWrite('[DS]''');
|
|
end;
|
|
writer.AsmLn;
|
|
|
|
{Entry in transition vector: }
|
|
writer.AsmWrite(#9'csect'#9); writer.AsmWrite(s); writer.AsmWriteLn('[DS]');
|
|
|
|
writer.AsmWrite(#9'dc.l'#9'.'); writer.AsmWriteLn(s);
|
|
|
|
writer.AsmWriteln(#9'dc.l'#9'TOC[tc0]');
|
|
|
|
{Entry in TOC: }
|
|
writer.AsmWriteLn(#9'toc');
|
|
|
|
writer.AsmWrite(#9'tc'#9);
|
|
writer.AsmWrite(s); writer.AsmWrite('[TC],');
|
|
writer.AsmWrite(s); writer.AsmWriteln('[DS]');
|
|
end;
|
|
|
|
function GetAdjacentTaiSymbol(var hp:tai):Boolean;
|
|
|
|
begin
|
|
GetAdjacentTaiSymbol:= false;
|
|
while assigned(hp.next) do
|
|
case tai(hp.next).typ of
|
|
ait_symbol:
|
|
begin
|
|
hp:=tai(hp.next);
|
|
GetAdjacentTaiSymbol:= true;
|
|
Break;
|
|
end;
|
|
ait_function_name:
|
|
hp:=tai(hp.next);
|
|
else
|
|
begin
|
|
//writer.AsmWriteln(' ;#*#*# ' + tostr(Ord(tai(hp.next).typ)));
|
|
Break;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
var
|
|
first,last: tai;
|
|
s: string;
|
|
replaced: boolean;
|
|
|
|
|
|
begin
|
|
s:= tai_symbol(hp).sym.name;
|
|
{Write all headers}
|
|
first:= hp;
|
|
repeat
|
|
WriteExportHeader(hp);
|
|
last:= hp;
|
|
until not GetAdjacentTaiSymbol(hp);
|
|
|
|
{Start the section of the body of the proc: }
|
|
s:= tai_symbol(last).sym.name;
|
|
replaced:= ReplaceForbiddenChars(s);
|
|
|
|
if use_PR then
|
|
begin
|
|
writer.AsmWrite(#9'export'#9'.'); writer.AsmWrite(s); writer.AsmWrite('[PR]');
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' => ''.');
|
|
writer.AsmWrite(tai_symbol(last).sym.name);
|
|
writer.AsmWrite('[PR]''');
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
{Starts the section: }
|
|
writer.AsmWrite(#9'csect'#9'.');
|
|
writer.AsmWrite(s);
|
|
writer.AsmWriteLn('[PR]');
|
|
|
|
{Info for the debugger: }
|
|
writer.AsmWrite(#9'function'#9'.');
|
|
writer.AsmWrite(s);
|
|
writer.AsmWriteLn('[PR]');
|
|
|
|
{Write all labels: }
|
|
hp:= first;
|
|
repeat
|
|
s:= tai_symbol(hp).sym.name;
|
|
ReplaceForbiddenChars(s);
|
|
writer.AsmWrite('.'); writer.AsmWrite(s); writer.AsmWriteLn(':');
|
|
until not GetAdjacentTaiSymbol(hp);
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteDataHeader(var s:string; isExported, isConst:boolean);
|
|
// Returns in s the changed string
|
|
var
|
|
sym: string;
|
|
replaced: boolean;
|
|
|
|
begin
|
|
sym:= s;
|
|
replaced:= ReplaceForbiddenChars(s);
|
|
|
|
if isExported then
|
|
begin
|
|
writer.AsmWrite(#9'export'#9);
|
|
writer.AsmWrite(s);
|
|
if isConst then
|
|
writer.AsmWrite(const_storage_class)
|
|
else
|
|
writer.AsmWrite(var_storage_class);
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' => ''');
|
|
writer.AsmWrite(sym);
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
if not macos_direct_globals then
|
|
begin
|
|
{The actual section is here interrupted, by inserting a "tc" entry}
|
|
writer.AsmWriteLn(#9'toc');
|
|
|
|
writer.AsmWrite(#9'tc'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite('[TC], ');
|
|
writer.AsmWrite(s);
|
|
if isConst then
|
|
writer.AsmWrite(const_storage_class)
|
|
else
|
|
writer.AsmWrite(var_storage_class);
|
|
writer.AsmLn;
|
|
|
|
{The interrupted section is here continued.}
|
|
writer.AsmWrite(#9'csect'#9);
|
|
writer.AsmWriteln(cur_CSECT_name+cur_CSECT_class);
|
|
writer.AsmWrite(PadTabs(s+':',#0));
|
|
end
|
|
else
|
|
begin
|
|
writer.AsmWrite(#9'csect'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite('[TC]');
|
|
end;
|
|
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
const
|
|
ait_const2str:array[aitconst_32bit..aitconst_8bit] of string[8]=
|
|
(#9'dc.l'#9,#9'dc.w'#9,#9'dc.b'#9);
|
|
|
|
|
|
procedure TPPCMPWAssembler.WriteTree(p:TAsmList);
|
|
var
|
|
s : string;
|
|
hp : tai;
|
|
counter,
|
|
lines,
|
|
InlineLevel : longint;
|
|
i,j,l : longint;
|
|
consttype : taiconst_type;
|
|
do_line,DoNotSplitLine,
|
|
quoted : boolean;
|
|
|
|
begin
|
|
if not assigned(p) then
|
|
exit;
|
|
InlineLevel:=0;
|
|
{ lineinfo is only needed for al_procedures (PFV) }
|
|
do_line:=((cs_asm_source in current_settings.globalswitches) or
|
|
(cs_lineinfo in current_settings.moduleswitches))
|
|
and (p=current_asmdata.asmlists[al_procedures]);
|
|
DoNotSplitLine:=false;
|
|
hp:=tai(p.first);
|
|
while assigned(hp) do
|
|
begin
|
|
prefetch(pointer(hp.next)^);
|
|
if not(hp.typ in SkipLineInfo) then
|
|
begin
|
|
current_filepos:=tailineinfo(hp).fileinfo;
|
|
{ no line info for inlined code }
|
|
if do_line and (inlinelevel=0) and not DoNotSplitLine then
|
|
WriteSourceLine(hp as tailineinfo);
|
|
end;
|
|
|
|
DoNotSplitLine:=false;
|
|
|
|
case hp.typ of
|
|
ait_comment:
|
|
begin
|
|
writer.AsmWrite(asminfo^.comment);
|
|
writer.AsmWritePChar(tai_comment(hp).str);
|
|
writer.AsmLn;
|
|
end;
|
|
ait_regalloc,
|
|
ait_tempalloc:
|
|
;
|
|
ait_section:
|
|
begin
|
|
ResetSourceLines;
|
|
|
|
{if LastSecType<>sec_none then
|
|
writer.AsmWriteLn('_'+asminfo^.secnames[LastSecType]+#9#9'ENDS');}
|
|
|
|
if tai_section(hp).sectype<>sec_none then
|
|
begin
|
|
if tai_section(hp).sectype in [sec_data,sec_rodata,sec_bss] then
|
|
cur_CSECT_class:= '[RW]'
|
|
else if tai_section(hp).sectype in [sec_code] then
|
|
cur_CSECT_class:= ''
|
|
else
|
|
cur_CSECT_class:= '[RO]';
|
|
|
|
s:= tai_section(hp).name^;
|
|
if s = '' then
|
|
InternalError(2004101001); {Nameless sections should not occur on MPW}
|
|
ReplaceForbiddenChars(s);
|
|
cur_CSECT_name:= s;
|
|
|
|
writer.AsmLn;
|
|
writer.AsmWriteLn(#9+secnames[tai_section(hp).sectype]+' '+cur_CSECT_name+cur_CSECT_class);
|
|
end;
|
|
LastSecType:=tai_section(hp).sectype;
|
|
end;
|
|
ait_align:
|
|
begin
|
|
case tai_align(hp).aligntype of
|
|
1:writer.AsmWriteLn(#9'align 0');
|
|
2:writer.AsmWriteLn(#9'align 1');
|
|
4:writer.AsmWriteLn(#9'align 2');
|
|
otherwise internalerror(2002110302);
|
|
end;
|
|
end;
|
|
ait_datablock: {Storage for global variables.}
|
|
begin
|
|
s:= tai_datablock(hp).sym.name;
|
|
|
|
WriteDataHeader(s, tai_datablock(hp).is_global, false);
|
|
if not macos_direct_globals then
|
|
begin
|
|
writer.AsmWriteLn(#9'ds.b '+tostr(tai_datablock(hp).size));
|
|
end
|
|
else
|
|
begin
|
|
writer.AsmWriteLn(PadTabs(s+':',#0)+'ds.b '+tostr(tai_datablock(hp).size));
|
|
{TODO: ? PadTabs(s,#0) }
|
|
end;
|
|
end;
|
|
|
|
ait_const:
|
|
begin
|
|
consttype:=tai_const(hp).consttype;
|
|
case consttype of
|
|
aitconst_128bit:
|
|
begin
|
|
internalerror(2004042904);
|
|
end;
|
|
aitconst_64bit:
|
|
begin
|
|
if assigned(tai_const(hp).sym) then
|
|
internalerror(2004042905);
|
|
writer.AsmWrite(ait_const2str[aitconst_32bit]);
|
|
if target_info.endian = endian_little then
|
|
begin
|
|
writer.AsmWrite(tostr(longint(lo(tai_const(hp).value))));
|
|
writer.AsmWrite(',');
|
|
writer.AsmWrite(tostr(longint(hi(tai_const(hp).value))));
|
|
end
|
|
else
|
|
begin
|
|
writer.AsmWrite(tostr(longint(hi(tai_const(hp).value))));
|
|
writer.AsmWrite(',');
|
|
writer.AsmWrite(tostr(longint(lo(tai_const(hp).value))));
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
aitconst_uleb128bit,
|
|
aitconst_sleb128bit,
|
|
aitconst_32bit,
|
|
aitconst_16bit,
|
|
aitconst_8bit,
|
|
aitconst_rva_symbol :
|
|
begin
|
|
writer.AsmWrite(ait_const2str[consttype]);
|
|
l:=0;
|
|
repeat
|
|
if assigned(tai_const(hp).sym) then
|
|
begin
|
|
if assigned(tai_const(hp).endsym) then
|
|
begin
|
|
if (tai_const(hp).endsym.typ = AT_FUNCTION) and use_PR then
|
|
writer.AsmWrite('.');
|
|
|
|
s:=tai_const(hp).endsym.name;
|
|
ReplaceForbiddenChars(s);
|
|
writer.AsmWrite(s);
|
|
inc(l,length(s));
|
|
|
|
if tai_const(hp).endsym.typ = AT_FUNCTION then
|
|
begin
|
|
if use_PR then
|
|
writer.AsmWrite('[PR]')
|
|
else
|
|
writer.AsmWrite('[DS]');
|
|
end;
|
|
|
|
writer.AsmWrite('-');
|
|
inc(l,5); {Approx 5 extra, no need to be exactly}
|
|
end;
|
|
|
|
if (tai_const(hp).sym.typ = AT_FUNCTION) and use_PR then
|
|
writer.AsmWrite('.');
|
|
|
|
s:= tai_const(hp).sym.name;
|
|
ReplaceForbiddenChars(s);
|
|
writer.AsmWrite(s);
|
|
inc(l,length(s));
|
|
|
|
if tai_const(hp).sym.typ = AT_FUNCTION then
|
|
begin
|
|
if use_PR then
|
|
writer.AsmWrite('[PR]')
|
|
else
|
|
writer.AsmWrite('[DS]');
|
|
end;
|
|
inc(l,5); {Approx 5 extra, no need to be exactly}
|
|
|
|
if tai_const(hp).value > 0 then
|
|
s:= '+'+tostr(tai_const(hp).value)
|
|
else if tai_const(hp).value < 0 then
|
|
s:= '-'+tostr(tai_const(hp).value)
|
|
else
|
|
s:= '';
|
|
if s<>'' then
|
|
begin
|
|
writer.AsmWrite(s);
|
|
inc(l,length(s));
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
s:= tostr(tai_const(hp).value);
|
|
writer.AsmWrite(s);
|
|
inc(l,length(s));
|
|
end;
|
|
|
|
if (l>line_length) or
|
|
(hp.next=nil) or
|
|
(tai(hp.next).typ<>ait_const) or
|
|
(tai_const(hp.next).consttype<>consttype) then
|
|
break;
|
|
hp:=tai(hp.next);
|
|
writer.AsmWrite(',');
|
|
until false;
|
|
writer.AsmLn;
|
|
end;
|
|
else
|
|
internalerror(2019050950);
|
|
end;
|
|
end;
|
|
|
|
ait_realconst:
|
|
begin
|
|
WriteRealConstAsBytes(tai_realconst(hp),#9'dc.b'#9,do_line);
|
|
end;
|
|
|
|
ait_string:
|
|
begin
|
|
{NOTE When a single quote char is encountered, it is
|
|
replaced with a numeric ascii value. It could also
|
|
have been replaced with the escape seq of double quotes.
|
|
Backslash seems to be used as an escape char, although
|
|
this is not mentioned in the PPCAsm documentation.}
|
|
counter := 0;
|
|
lines := tai_string(hp).len div line_length;
|
|
{ separate lines in different parts }
|
|
if tai_string(hp).len > 0 then
|
|
begin
|
|
for j := 0 to lines-1 do
|
|
begin
|
|
writer.AsmWrite(#9'dc.b'#9);
|
|
quoted:=false;
|
|
for i:=counter to counter+line_length-1 do
|
|
begin
|
|
{ it is an ascii character. }
|
|
if (ord(tai_string(hp).str[i])>31) and
|
|
(ord(tai_string(hp).str[i])<128) and
|
|
(tai_string(hp).str[i]<>'''') and
|
|
(tai_string(hp).str[i]<>'\') then
|
|
begin
|
|
if not(quoted) then
|
|
begin
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmWrite(tai_string(hp).str[i]);
|
|
quoted:=true;
|
|
end { if > 31 and < 128 and ord('"') }
|
|
else
|
|
begin
|
|
if quoted then
|
|
writer.AsmWrite('''');
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
quoted:=false;
|
|
writer.AsmWrite(tostr(ord(tai_string(hp).str[i])));
|
|
end;
|
|
end; { end for i:=0 to... }
|
|
if quoted then writer.AsmWrite('''');
|
|
writer.AsmLn;
|
|
counter := counter+line_length;
|
|
end; { end for j:=0 ... }
|
|
|
|
{ do last line of lines }
|
|
if counter < tai_string(hp).len then
|
|
writer.AsmWrite(#9'dc.b'#9);
|
|
quoted:=false;
|
|
for i:=counter to tai_string(hp).len-1 do
|
|
begin
|
|
{ it is an ascii character. }
|
|
if (ord(tai_string(hp).str[i])>31) and
|
|
(ord(tai_string(hp).str[i])<128) and
|
|
(tai_string(hp).str[i]<>'''') and
|
|
(tai_string(hp).str[i]<>'\') then
|
|
begin
|
|
if not(quoted) then
|
|
begin
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmWrite(tai_string(hp).str[i]);
|
|
quoted:=true;
|
|
end { if > 31 and < 128 and " }
|
|
else
|
|
begin
|
|
if quoted then
|
|
writer.AsmWrite('''');
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
quoted:=false;
|
|
writer.AsmWrite(tostr(ord(tai_string(hp).str[i])));
|
|
end;
|
|
end; { end for i:=0 to... }
|
|
if quoted then
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
ait_label:
|
|
begin
|
|
if tai_label(hp).labsym.is_used then
|
|
begin
|
|
s:= tai_label(hp).labsym.name;
|
|
if s[1] = '@' then
|
|
begin
|
|
ReplaceForbiddenChars(s);
|
|
//Local labels:
|
|
writer.AsmWriteLn(s+':')
|
|
end
|
|
else
|
|
begin
|
|
//Procedure entry points:
|
|
if not macos_direct_globals then
|
|
begin
|
|
WriteDataHeader(s, tai_label(hp).labsym.bind in [AB_GLOBAL,AB_PRIVATE_EXTERN], true);
|
|
end
|
|
else
|
|
begin
|
|
ReplaceForbiddenChars(s);
|
|
writer.AsmWrite(#9'csect'#9); writer.AsmWrite(s);
|
|
writer.AsmWriteLn('[TC]');
|
|
|
|
writer.AsmWriteLn(PadTabs(s+':',#0));
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
ait_symbol:
|
|
begin
|
|
if tai_symbol(hp).sym.typ=AT_FUNCTION then
|
|
WriteProcedureHeader(hp)
|
|
else if tai_symbol(hp).sym.typ in [AT_DATA,AT_METADATA] then
|
|
begin
|
|
s:= tai_symbol(hp).sym.name;
|
|
WriteDataHeader(s, tai_symbol(hp).is_global, true);
|
|
if macos_direct_globals then
|
|
begin
|
|
writer.AsmWrite(s);
|
|
writer.AsmWriteLn(':');
|
|
end;
|
|
end
|
|
else
|
|
InternalError(2003071301);
|
|
end;
|
|
ait_symbol_end:
|
|
;
|
|
ait_instruction:
|
|
WriteInstruction(hp);
|
|
ait_stab,
|
|
ait_force_line,
|
|
ait_function_name : ;
|
|
ait_cutobject :
|
|
begin
|
|
InternalError(2004101101); {Smart linking is done transparently by the MPW linker.}
|
|
end;
|
|
ait_marker :
|
|
begin
|
|
if tai_marker(hp).kind=mark_NoLineInfoStart then
|
|
inc(InlineLevel)
|
|
else if tai_marker(hp).kind=mark_NoLineInfoEnd then
|
|
dec(InlineLevel);
|
|
end;
|
|
ait_directive :
|
|
if tai_directive(hp).directive=asd_cpu then
|
|
begin
|
|
writer.AsmWrite(asminfo^.comment+' CPU ');
|
|
if tai_directive(hp).name<>'' then
|
|
writer.AsmWrite(tai_directive(hp).name);
|
|
writer.AsmLn;
|
|
end
|
|
else
|
|
internalerror(2016022601);
|
|
else
|
|
internalerror(2002110303);
|
|
end;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
currentasmlist : TExternalAssembler;
|
|
|
|
procedure writeexternal(p:tasmsymbol);
|
|
|
|
var
|
|
s:string;
|
|
replaced: boolean;
|
|
|
|
begin
|
|
if tasmsymbol(p).bind in [AB_EXTERNAL,AB_EXTERNAL_INDIRECT] then
|
|
begin
|
|
//Writeln('ZZZ ',p.name,' ',p.typ);
|
|
s:= p.name;
|
|
replaced:= ReplaceForbiddenChars(s);
|
|
|
|
with currentasmlist do
|
|
case tasmsymbol(p).typ of
|
|
AT_FUNCTION:
|
|
begin
|
|
writer.AsmWrite(#9'import'#9'.');
|
|
writer.AsmWrite(s);
|
|
if use_PR then
|
|
writer.AsmWrite('[PR]');
|
|
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' <= ''.');
|
|
writer.AsmWrite(p.name);
|
|
if use_PR then
|
|
writer.AsmWrite('[PR]''')
|
|
else
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmLn;
|
|
|
|
writer.AsmWrite(#9'import'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite('[DS]');
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' <= ''');
|
|
writer.AsmWrite(p.name);
|
|
writer.AsmWrite('[DS]''');
|
|
end;
|
|
writer.AsmLn;
|
|
|
|
writer.AsmWriteLn(#9'toc');
|
|
|
|
writer.AsmWrite(#9'tc'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite('[TC],');
|
|
writer.AsmWrite(s);
|
|
writer.AsmWriteLn('[DS]');
|
|
end;
|
|
AT_DATA:
|
|
begin
|
|
writer.AsmWrite(#9'import'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite(var_storage_class);
|
|
if replaced then
|
|
begin
|
|
writer.AsmWrite(' <= ''');
|
|
writer.AsmWrite(p.name);
|
|
writer.AsmWrite('''');
|
|
end;
|
|
writer.AsmLn;
|
|
|
|
writer.AsmWriteLn(#9'toc');
|
|
writer.AsmWrite(#9'tc'#9);
|
|
writer.AsmWrite(s);
|
|
writer.AsmWrite('[TC],');
|
|
writer.AsmWrite(s);
|
|
writer.AsmWriteLn(var_storage_class);
|
|
end
|
|
else
|
|
InternalError(2003090901);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteExternals;
|
|
var
|
|
i : longint;
|
|
begin
|
|
currentasmlist:=self;
|
|
// current_asmdata.asmsymboldict.foreach_static(@writeexternal,nil);
|
|
for i:=0 to current_asmdata.AsmSymbolDict.Count-1 do
|
|
begin
|
|
writeexternal(tasmsymbol(current_asmdata.AsmSymbolDict[i]));
|
|
end;
|
|
end;
|
|
|
|
|
|
function TPPCMPWAssembler.DoAssemble : boolean;
|
|
begin
|
|
DoAssemble:=Inherited DoAssemble;
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteAsmFileHeader;
|
|
|
|
begin
|
|
writer.AsmWriteLn(#9'string asis'); {Interpret strings just to be the content between the quotes.}
|
|
writer.AsmWriteLn(#9'aligning off'); {We do our own aligning.}
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteAsmList;
|
|
var
|
|
hal : tasmlisttype;
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
if current_module.mainsource<>'' then
|
|
comment(v_info,'Start writing MPW-styled assembler output for '+current_module.mainsource);
|
|
{$endif}
|
|
|
|
WriteAsmFileHeader;
|
|
WriteExternals;
|
|
|
|
for hal:=low(TasmlistType) to high(TasmlistType) do
|
|
begin
|
|
writer.AsmWriteLn(asminfo^.comment+'Begin asmlist '+AsmListTypeStr[hal]);
|
|
writetree(current_asmdata.asmlists[hal]);
|
|
writer.AsmWriteLn(asminfo^.comment+'End asmlist '+AsmListTypeStr[hal]);
|
|
end;
|
|
|
|
writer.AsmWriteLn(#9'end');
|
|
writer.AsmLn;
|
|
|
|
{$ifdef EXTDEBUG}
|
|
if current_module.mainsource<>'' then
|
|
comment(v_info,'Done writing MPW-styled assembler output for '+current_module.mainsource);
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Initialize
|
|
*****************************************************************************}
|
|
|
|
const
|
|
as_powerpc_mpw_info : tasminfo =
|
|
(
|
|
id : as_powerpc_mpw;
|
|
idtxt : 'MPW';
|
|
asmbin : 'PPCAsm';
|
|
asmcmd : '-case on $ASM $EXTRAOPT -o $OBJ';
|
|
supported_targets : [system_powerpc_macosclassic];
|
|
flags : [af_needar,af_smartlink_sections,af_labelprefix_only_inside_procedure];
|
|
labelprefix : '@';
|
|
labelmaxlen : -1;
|
|
comment : '; ';
|
|
dollarsign: 's';
|
|
);
|
|
|
|
initialization
|
|
RegisterAssembler(as_powerpc_mpw_info,TPPCMPWAssembler);
|
|
end.
|